CA2139188A1 - Memory call origination system - Google Patents
Memory call origination systemInfo
- Publication number
- CA2139188A1 CA2139188A1 CA002139188A CA2139188A CA2139188A1 CA 2139188 A1 CA2139188 A1 CA 2139188A1 CA 002139188 A CA002139188 A CA 002139188A CA 2139188 A CA2139188 A CA 2139188A CA 2139188 A1 CA2139188 A1 CA 2139188A1
- Authority
- CA
- Canada
- Prior art keywords
- identification number
- signal
- communication device
- speech
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
- H04M1/2745—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips
- H04M1/2753—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips providing data content
- H04M1/2757—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc using static electronic memories, e.g. chips providing data content by data transmission, e.g. downloading
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
- H04M1/6505—Recording arrangements for recording a message from the calling party storing speech in digital form
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
Abstract
A transceiver records an identification number of a calling station included in a received control signal. The recording is done automatically in the event of unattended recording or in response to a record command during conversation. The transceiver originates a call in response to a transmission signal using the stored identification number of the calling station .
Description
, . , -MEMORY CALL ORIGINATrON ~YB~E~
~AC~GROUND OF THE lNv~ N
Field of the ~nvention The present invention relates to a memory call originationsystem, and more particularly, to a memory call origination system associated with unattended recording and ~ecording during commun~cation available with a multi channel access (MCA) transmitter/receiver.
Description of the Related Art - A conventional wire mes~age telephone i5 disclosed in, for example, Japanese Laid-Open Patent ~lo. 31424611992 (JP-A-04-314246). When a call comes in through the wire while the message telephone is in an unattended record mode, i.e., ans~er mode, an automatic answer section off-hooks and sends an answer message automatically. The answer message urges the calling person to send a speech message and a telephone number of the calling person. Tn order to send the telephone nu~ber, the caller dials his number, which is then transmitted over a speech channel as a dual tone multi-frequency (DTMF) signal. The speech message received from the calling person is stored into a speech recording section. The DTMF si~nal is converted to numerical data and stored into a dial recording section.
The user of the message telephone may then play back the recorded me~sa~e. After the speech message stored in the speech recording section is played back, a reproducing section supplies 8Z~'~ d ~6960105S~ 81 ~ ~.'9 5~ ) esz~zl ~t-661 `~
~13gl88 -a control ~ignal for identification to the dial recording section. In response, the dial recording section originates a call automatically on the basis of the identified telephone number, `oy sending the telephone number In the form of a DTMF
S signal over a control channel.
As seen from the above de~cription, in the c~nventional message telephone having a memory call origination system, a calling party may leave a speech message to be recorded by the called telephone system. The caller may also send its telephone number by dialing the number on the telephone set. The keyed telephone nu~ber is ~ent in the form of a DTMF signal over the speech channel. The DTM~ signal i6 decoded and saved as numerical dat~ ~y the receiving station.
Accordingly, in the system of the prior art, a caller number mu6t be manually keyed in order for it to be received and saved by the receiving station. Moreover, since the num~er is transmitted as a DTMF signal over the speech channel, reliability is degraded when it is sent via a radio channel due to, for example, changes in electric field intensity and interference.
In addition, in the sy~tem of the pricr art, reception and - storage of the calling number can be performed only during operation ~n answering mode.
Therefore, it is ~sually impossible to record the caller number during a conversation, and the conventional message Z5 telephone cannot be used to automaticzlly o~iginate a call to the caller number after the conversa~ion has ended.
8UM~ARY OF THE INv~hllON
8~5 d ~ ;' 6 C~ I C 5 1, ~ J 1 1~/9~:: 8 1 ~ 92 i~: 1 ~r <3 6 1 ~ i~
~l39l88 -It is therefore an object of the present invention to provide a mem~ry call orlglnation syste~ capable of recording a telephone number of the calling party included in a transmitted call signal.
5Another object of the present invention is to provide a memory call origination system capable of extracting the telephone number o~ the calling party from the call sic~nal transmitted over the control channel.
Yet another object of the present invention is to provide 10a memory call origination system capable recording a telephone number o~ the other party v~a a radio channel.
It is further object of the present invention to provide a memory call origination system capa~le of recalling a stored telephone num~er to originate a call to the other party who sent 15the rPcorded speech message.
The telephone a~swering system according to the present invention is capable of extracting and storing the telephone number of a calling party and, thereafter, automatically originating a call to that party by recalling its numbe~ from the 20memory. However, unlik~ the systems Or the prior art, ~he system - of the present invention extracts the calling number from a digital eignal transmitted over the common control channel. This provides better reliability and accuracy. The extracted number is recorded digitally in a RAM and can be used to originate a 25call to the calling party.
When the calling party calls the number where the system is installed, the system receives a dlgltal channel signal including an ID number of the calling party via a common con~rol channel~
82/C? d ' L~59CSC I C5'!1tlCX~ F, ~ 13ZI~Z t~6 1 - 2~33188 .
The system extracts and records the ID number of the calling station. It -then transmits a recorded message invit}ng the caller to lea~e a speech message. If a speech mes6age is received from the calling party via a communication channel, the ccmmunication de~ice records the received speech signal. The user may then instruct the system to read the recorded ID number and commence automatic calling of the recorded ID number.
More definitel~-, the communication de~ice according to ~he present invention, recelves a channel signal including a first identification number of the called station and a second identification number of the calling ~tation over the control channel, and a speech signal over the speech channel. The communication device includes a first decoder which extracts ~he first iden~ification number from the received channel signal to match it with the system's assigned ID number. A second decoder extract~ the speech signal ~rcm the recei~ed channel signal. In the preferred embodiment, the s~stem incl~des a first me~ory for recording the second ~dentification nu~ber r7hen the first identification number is coincided with an assigned identification number, and a second memory for recording the - speech signal.
~ urther, the communication device correlates the memory address of the received speech signal stored in the second memory with the memory address of the caller identification number 6tored in the ~irst memory.
BRIEF DESC~IPTION OF THE DRAWING5 8'/L d LL696GiG5f~ V{f1 :e!'1 fi 81 1~)G9Z~Zl~s~6f~1 ~139188 The above and other objects, features and advantages of this invention will become more apparent from the following detailed description taken with the accompanying drawings in which:
FIG. 1 is a block diagram of a preferred embodiment of the present invention;
FIG. 2(a) illustrates a signal format of a digital channel signal in a common control channel used when a communication channel between a calling MCA transceiver station and a receiving MCA transceiver station, or a called station, is set;
FIG. 2 (b) lllustrates a signal format of the digital channel signal in the com~unication channel;
FIG, 3 is a flowchart demonstrating an operation of the CPU
shown in FIG. 1 ln the answering mode according to the present invention;
FIG. 4 is a flowchart demonst~ating an opera~ion of recording message not in the answer mode according to the present in~ention; and FIG, 5 is a flowchart demonstrating an operation of memory origination.
In the drawings, the same reference numerals denote the same structural elements.
DE~CRIPTION OF ~B PREF~RRED EMBODIMENT
FIG. 1 is a ~lock diagram of a preferred embodiment of the pre~ent invention. In FIG. 1, an MCA transceiver system includes a plurality of ~CA transceiver stations loo, 200 and 250, and a base station 300 which executes a duplicate communication with the MCA transceiver stations. Each MCA transceiver station has 8Z~ d 116960109~s~,'1 11~/1::1 1~) E39Z~Zl~ 561 03N 'N~ISI/~I(' ~ 1~9188 .~
an ans~ering system and an automatic calllng system. The MCA
transceiver station can ~perate in an answering mode and a communication mode. In the communication, i.e,, non-answering mode, com~unication between a callin~ station and a called station is establ~shed to allow conversation between the called and calling parties. In the answering mode communication does not take place, but the ca~ling party may lea~e a ~essage. The message, received as a speech signal from the calling station, is stored into a memory of the called station In the preferred ~mbodiment, ID inf~rmation and 6peech signals can be recorded in ei~her mode of operation.
During recepti~n of a signal, a radio section 12 of the called ~tation 100 receives a digital channel signal via an antenna 10. A channel decoder 14 demodulates the digital channel signal to a demodulated si~nal. A speech decoder 16 decodes a speech signal included in the demodulated signal to a decoded speech slgna~ supplie~ to a digital/analog ~D/A~ converter 18.
rhe D/A converter 18 transforms the decoded speech signal to an analog speech signal. An audio amplifier 20 amplifies the analog speech signal and supplies the analog speech signal to a speaker 22.
When a user speaks into microphone 24, the microphone 24 sends a corresponding voice 6ignal to a microphone amplifier 26 to be amplified to an adequate volta~e ~or analog/~igital conversion. An analog~digital (A/D) converter 28 conve~ts the output voltage of the microphone amplifier 26 to a speech 6ignal.
A speech ccder 30 encodes the speech signa' to a coded digital speech signal. A channel coder 32 modulates the coded digital 8 Z, 6 ~ . ~ 6 Q 6 0 I r~ 5 ~ ~J~ [ : 8 . IIJ~ 8 8 1 ( ~ ~ 6 Y Z ~Z I ~ t ~ c r A T n - ~13 ~
-6peech signal to a modulated signal. The radio section 12 sends the modulated signal via the antenna lO.
Each of the channel decoder 14 and channel coder 32 is, for example, constituted in a semiconductor chip DSP1610 made by AT&T. ~ach of the speech decoder 16 and speech coder 30 i6 constituted, for example, in a semiconductor chip MN1920813 made by Matsushita A CPU 34 controls the channel decoder 14, the speech decoder 16, the speech coder 30, the chann~l coder 32, a speech RAM 36, a number RAM 38, an operating 6ect~0n or key 40, and a display 42 as described later. The ~peech RAM 36 records the speech signal received from the speech decoder ~6. If desi~ed, the transmitted speech signal can also be recorded in the speech RAM
36. The nu~ber RAM 38 records the ID number of the calling party from the channel decoder 14. Although the speech RAM 36 and number RAM 38 are shown as separate me~ories, they can be implemented in a single memory unit. The operating section 40 is accessible for keying in commands meant for the CPU 34. The CPU 34 and operating 6ection 40 constitutes a setting means for 6etting the transceiver into one o~ the answering mode and communication mode.
FIG. 2(a) illustrates a slgnal format ~f the digital channel signal in a common control channel used when a communication channel between a calling MCA transceiver station and a receiving MCA transceiver station, or a called station, is set. For the purpo~e o~ illustration, the case is described ~here the station 200 i~ the calling station and the station 100 is the called 6tation. The digital channel signal in the common control ~3Z/0( d ~6960lOS~ ,1 :81~,'8:81 (~ 9Z~Zi~ 66[ '`~
2~39188 -channel includes a radio control signal, an identification (ID) number of the called station 100 (FIG. 1), an identification number of the calling station ~00 (FIG. 1), and other control s~gnals including a group number or an additional message signal.
When the ID number of the destinaticn coincides with an assigned ID number, at least the ID number of the calling station, is extracted from the digital channel signal at the channel decoder 14 and stored into the number RA~f 38.
FIG. 2(b) illustrates a signal format of the digital channel signal in the communication channel. T~e communication channol includes a control signal and a speech signal. The speech signal i~ extracted at the speech decoder 16 and is stored into the speech RAM 36 in the answering mode or when a record signal is input from the operating section 40.
15FIG. 3 is a flowchart demonstratin~ an oper2tion of the CPU
34 in the answering mode, The MCA transceiver station 100 is set `.r into the answering mode by the CPU 34 and operating secticn 40.
When the radio cection 12 of the MCA transceiver station 100 receives a digital channel signal of a common control channel (Step S101~, the digital channel signa1 is supplied to the channel decoder 14 and demodulated into a demodula~ed signal.
In response, An identification ~ID) number of a called, or receiving 6tation, 100 included in the demodulated Eignal is compared with an assigned ID number s~ored in the number RAM 3a (Step S102). ~f the recelved ID number coinci~es with the assigned ID number, the CPU 34 checks whether the MCA transceiver station 100 is in an automatic ans~ering mode (Step S103). If the received ID number does not coincide with the assigned ID
ez,sI d ~f``9~OiOS~$1~1~.'1 :~17~/8c 81 (~) 99Z~Zl~;t~ 73N ~rllc. A~n ., _ .
2~391~8 number, the cPU 34 return~ t~ the sa~e condition e~i~tins prior to receiving the digital channel signal.
~hen ~he MCA transceiver station 100 is in the answering ~ode (Step S103), an ID number of a calling station 200, a gr~up number, and an additional information signal are extracted from the demodulated signal at the channel decoder 14 tStep S104) and the I~ number of the calling station 200 is stored into the number RAM 38 (Step S105) thrcugh the CPU 34. The group number and the additional information signal may be also stored into the number RAM 3B. Then, the CPU 34 sets up a speech path extending ~rom the speech decoder 16 to the speech RAM 36 and the speaker 22 and a speech path extending from the speech RP~ 36 to the speech coder 30 (Step S106). Subsequently, an answer message is read out of the speech RAM 3~ (~tep S107) and sent to the calling station via the speech coder 30 and channel coder 32 ~Step S108).
The answer message is attached to the ID number of the calling station 200 at the channel coder 32 and sent to the calling station 200.
On receivinq a message or a speech signal from the calling station 200 via a communicati~n channel, the speech signal is ^ r~
decoded at the speech decoder 16 and stored into the speech RAM
36 (Step S109). At this time, an address of the speech RAM 36 in which the speech signal is stored is the same as that of the number RAM 38 in which the ID of the calling station 200 is ~tored. However, it is understood that other schemes can be employed to maintain correspondence between the speech signal address and the stored ID ~ddress. When the speech signal from the calling station 200 is finished (Step S110), the CPU 34 stops 8Z,'ZI c ~i 69e:01058'e~,'1 :81~6:81 1~) asz~z t3s~5GI
i .
storing the speech signal (step S1111. For example, when a communication end signal from the calling station is detected, the CPU 34 executes a communication end, or telease, processing ; ~not shot~n).
As described above, the ID number of the calling station included in the ~igital channel signal ic stored into the number RAM 38 in the answe~ mo~e.
Next, there will be described in detail a message recording procedure during a communication. FIG. 4 is a flowchart ~emonstrating the operation of recordin~ message not in the answer mode. ~Jhen the transceiver 100 (FIG. 1) is not in the answer mode (Step S103 in FIG. 3), the ID number of the calling station 20~, group number, and additional informat.on signal are ext~acted fro~ the demo~ulated signal ~Step S2~1) and temporally stored into a ~emory of the CPU 34 (Step S202). ~he CPU 34 moves to a talking o~er condition ~Step 203). In this condition, a received speech signal is transmitted f~om the speech dec~der 16 to the 6peaker 22 and a transmi~sion signal is sent from the microphone 24 to the speech coder 30. In the preferred embodiment, the speech decoder 16 and speech coder 30 are not enerqlzed when not in ~se. Therefore, in step s203 energy is supplied to the speec~ decoder 16 and speech coder 30 to allow communication.
During the con~ersation, the user of the transceiver station 100 may recotd the extracted data information of th~ calling station 200 by pressing the appropriate key cn the opera~ing section 40. In response, a record signal is sent ~o the CPU 34 (Step S2041 and the ID number of the callin~ station, group d ~6~6~ 5~.,'1 hllU/6E:81 1~) ~9Z~Z!3~b66[
- ~ 39188 ._ number, and additional information signal are transferred from t~e memory of the CPU 34 to the number ~M 38 (Step S205).
The transceiver st~tion 100 ~ay also be used to record the conversaticn. For that matter, the CPU 34 sets up a speech path extending from the speech coder 30 to the speech RAM 36 and a ~peech path extending from the speech decoder 16 to ~he speech RAM 36 (Step 5206). A received speech signal from the speech decoder 16 and a transmitted speech signal from the speech coder 30 are stored to the speech RA~ 36 through the CPU 34 ~Step s207). An address ~o the stored received and transmitted .speech signal in t~e speech R~ 36 is the same addres~ as that of the number RAM 38 in which the ID number of the calling station is stored. Finally, when an end signal is sent from the operating section 40, the CPU 40 stops recording the speech signals ~Step S20~
As seen from the above description, even though the receiving station is not in the answering mode, the ID number of the calling station and the speech signal are stored into the number RAM and the speech RAM, respectively. Although the transmitted speech is also stored into the speech R~ of the above-described embodi~ent, it is possible to record only the received speech signal or to dispense with recording any speech signals.
Furthermore, in the case of using one memory to store the received speech signal and the ID number into different addres~e~, the correspondence between the add~es~es is also stored into-the memory.
82iP I d ~69~53 l 5-~~ ' 1 : fl 11~i6fl: 81 (~) asG~z I~P66; ~ r l~n I c. I A . ~. . _ ._ ~1~9188 FIG. 5 is a flowchart demonstrating an operation of memory origination. This routine is executed whenever the user of the transceiver station 100 wishes to check the recGrded messages.
When a play command siqnal from the operating section 40 is received ~Step S301), the CPU 34 reads a corresponding pair of the speech signal and the ID number designated on the operating section 40 out of the speech RAM 36 and number ~1 3 a, re6pectively (Step S302). Por example, addresses in which the speech signal and the ID number are stored may be designated by the oper~ting section 40 directly. For example, when a user choose~ ~o listen to a particular message~ e.g.~ the third message, he may push a key "3" in the operating section 40 and the appropriate address for the third message will be provided by the CPU 34. Alternatively, a first speech signal i6 read out o~ a first address of the speech RAM 36 in response to the play co~mand signal from the operating section 40. If a message select slgnal is received from the operating section 40, the next speech signal of the second address is read. This operation is repeated until the designated speech signal is read. Next, the CPU 34 sets up a speech path extending from the speech RP~ 36 to ~ the speaker 22 via the speech decoder 16 (Step S303).
Subsequently, the speech signal is sent to the speaker 2~ ~Step S304).
During or after the reproduction of the speech signal, the CPU 34 waits for a first transmission command signal. If the fir~t transmi6sion command signal is input from the operating section 40 (Step S305), the I~ number of the calling station is dlsplayed on the display 42 ~step s306~. When the ID number is 8z~ci t d ~64fiOI O'8~YIII~5iI 13 111~ 0~ :8t (~ 9ZYZ ~661 ~:~ N 'NOI S iA I a d I W~u J
- - --displayed, the CPU ~4 waits for a second transmission command signal. If the second transmission command signal is received from the operating section 40 ~Step S307), the CPU 34 commences automatic cal~ing of the stored ID number, starting on memory origination by sending the ID number and group number of the station 203 being displayed to the channel coder 32 (Step S308).
The ID number of .he calling statlon 200 is sent to the base statlon 300 via the common control channel.
In the routine of FIG. 5, call origination is proceeded by lo two con6ecutive transmission commands. However, the routine can be modified to requlre only one transmission command. For example, step S307 can be eliminated and the routine can advance immedia~ely to step S30a.
The channel coder and decoder may ha~e err~r correcting capability. This results in a high quality digital communication. Although the addres6es in which the ID number and speech signal are stored into the num~er and speech ~ ~s, respectively, are the same, i~ is possible to record the I~
nu~ber and speech si~nal in the different addresses, respectively In this case, a correspondence bet~Jeen each addresses in w~icn the ID number and speech signal are 6t~red i~ ;;
stored into a third RAM ~not shown).
As described hereinbefore, according to the present invention, since an identification number of a calling station ~5 included in a received digital channel signal is ~tored in an answer mode, it is unneces6ary for the calling 6~ation to manu~lly send the identification number by DTMF signal. In addition, it is po~sible to execute memory origination, i.e., 8G/91 d LL69~ulO~ t alr~iOb 81 IY)09c,~Zl~b66; :)~N ',YOI~IA!C d ! iYO~I~
save the caller's ID information, even though a speech ~ignal is sto~ed during ordinary conversation in communicat ion mode.
.~oreover, since the identification number is sent over a high quality digital control channel having an error correcting capability, it is reliable even when sent by way of a radio channel, While the invention has been described with reference to 6pecific embodiments thereof, it will be appreciated by tho~e skllled in the art that numerous ~ariation~, modifications, and LO embodim~nts are possible, and accordingly, a'l such variations, modifications, and embodiments are to be regarded as being within the spirit and scope of the invention.
. ,t ~
:~Z,~ 51 I~S~ I: a; Id~Ot 13 ~ 1~1) E3qZ~c, t ~i6 1
~AC~GROUND OF THE lNv~ N
Field of the ~nvention The present invention relates to a memory call originationsystem, and more particularly, to a memory call origination system associated with unattended recording and ~ecording during commun~cation available with a multi channel access (MCA) transmitter/receiver.
Description of the Related Art - A conventional wire mes~age telephone i5 disclosed in, for example, Japanese Laid-Open Patent ~lo. 31424611992 (JP-A-04-314246). When a call comes in through the wire while the message telephone is in an unattended record mode, i.e., ans~er mode, an automatic answer section off-hooks and sends an answer message automatically. The answer message urges the calling person to send a speech message and a telephone number of the calling person. Tn order to send the telephone nu~ber, the caller dials his number, which is then transmitted over a speech channel as a dual tone multi-frequency (DTMF) signal. The speech message received from the calling person is stored into a speech recording section. The DTMF si~nal is converted to numerical data and stored into a dial recording section.
The user of the message telephone may then play back the recorded me~sa~e. After the speech message stored in the speech recording section is played back, a reproducing section supplies 8Z~'~ d ~6960105S~ 81 ~ ~.'9 5~ ) esz~zl ~t-661 `~
~13gl88 -a control ~ignal for identification to the dial recording section. In response, the dial recording section originates a call automatically on the basis of the identified telephone number, `oy sending the telephone number In the form of a DTMF
S signal over a control channel.
As seen from the above de~cription, in the c~nventional message telephone having a memory call origination system, a calling party may leave a speech message to be recorded by the called telephone system. The caller may also send its telephone number by dialing the number on the telephone set. The keyed telephone nu~ber is ~ent in the form of a DTMF signal over the speech channel. The DTM~ signal i6 decoded and saved as numerical dat~ ~y the receiving station.
Accordingly, in the system of the prior art, a caller number mu6t be manually keyed in order for it to be received and saved by the receiving station. Moreover, since the num~er is transmitted as a DTMF signal over the speech channel, reliability is degraded when it is sent via a radio channel due to, for example, changes in electric field intensity and interference.
In addition, in the sy~tem of the pricr art, reception and - storage of the calling number can be performed only during operation ~n answering mode.
Therefore, it is ~sually impossible to record the caller number during a conversation, and the conventional message Z5 telephone cannot be used to automaticzlly o~iginate a call to the caller number after the conversa~ion has ended.
8UM~ARY OF THE INv~hllON
8~5 d ~ ;' 6 C~ I C 5 1, ~ J 1 1~/9~:: 8 1 ~ 92 i~: 1 ~r <3 6 1 ~ i~
~l39l88 -It is therefore an object of the present invention to provide a mem~ry call orlglnation syste~ capable of recording a telephone number of the calling party included in a transmitted call signal.
5Another object of the present invention is to provide a memory call origination system capable of extracting the telephone number o~ the calling party from the call sic~nal transmitted over the control channel.
Yet another object of the present invention is to provide 10a memory call origination system capable recording a telephone number o~ the other party v~a a radio channel.
It is further object of the present invention to provide a memory call origination system capa~le of recalling a stored telephone num~er to originate a call to the other party who sent 15the rPcorded speech message.
The telephone a~swering system according to the present invention is capable of extracting and storing the telephone number of a calling party and, thereafter, automatically originating a call to that party by recalling its numbe~ from the 20memory. However, unlik~ the systems Or the prior art, ~he system - of the present invention extracts the calling number from a digital eignal transmitted over the common control channel. This provides better reliability and accuracy. The extracted number is recorded digitally in a RAM and can be used to originate a 25call to the calling party.
When the calling party calls the number where the system is installed, the system receives a dlgltal channel signal including an ID number of the calling party via a common con~rol channel~
82/C? d ' L~59CSC I C5'!1tlCX~ F, ~ 13ZI~Z t~6 1 - 2~33188 .
The system extracts and records the ID number of the calling station. It -then transmits a recorded message invit}ng the caller to lea~e a speech message. If a speech mes6age is received from the calling party via a communication channel, the ccmmunication de~ice records the received speech signal. The user may then instruct the system to read the recorded ID number and commence automatic calling of the recorded ID number.
More definitel~-, the communication de~ice according to ~he present invention, recelves a channel signal including a first identification number of the called station and a second identification number of the calling ~tation over the control channel, and a speech signal over the speech channel. The communication device includes a first decoder which extracts ~he first iden~ification number from the received channel signal to match it with the system's assigned ID number. A second decoder extract~ the speech signal ~rcm the recei~ed channel signal. In the preferred embodiment, the s~stem incl~des a first me~ory for recording the second ~dentification nu~ber r7hen the first identification number is coincided with an assigned identification number, and a second memory for recording the - speech signal.
~ urther, the communication device correlates the memory address of the received speech signal stored in the second memory with the memory address of the caller identification number 6tored in the ~irst memory.
BRIEF DESC~IPTION OF THE DRAWING5 8'/L d LL696GiG5f~ V{f1 :e!'1 fi 81 1~)G9Z~Zl~s~6f~1 ~139188 The above and other objects, features and advantages of this invention will become more apparent from the following detailed description taken with the accompanying drawings in which:
FIG. 1 is a block diagram of a preferred embodiment of the present invention;
FIG. 2(a) illustrates a signal format of a digital channel signal in a common control channel used when a communication channel between a calling MCA transceiver station and a receiving MCA transceiver station, or a called station, is set;
FIG. 2 (b) lllustrates a signal format of the digital channel signal in the com~unication channel;
FIG, 3 is a flowchart demonstrating an operation of the CPU
shown in FIG. 1 ln the answering mode according to the present invention;
FIG. 4 is a flowchart demonst~ating an opera~ion of recording message not in the answer mode according to the present in~ention; and FIG, 5 is a flowchart demonstrating an operation of memory origination.
In the drawings, the same reference numerals denote the same structural elements.
DE~CRIPTION OF ~B PREF~RRED EMBODIMENT
FIG. 1 is a ~lock diagram of a preferred embodiment of the pre~ent invention. In FIG. 1, an MCA transceiver system includes a plurality of ~CA transceiver stations loo, 200 and 250, and a base station 300 which executes a duplicate communication with the MCA transceiver stations. Each MCA transceiver station has 8Z~ d 116960109~s~,'1 11~/1::1 1~) E39Z~Zl~ 561 03N 'N~ISI/~I(' ~ 1~9188 .~
an ans~ering system and an automatic calllng system. The MCA
transceiver station can ~perate in an answering mode and a communication mode. In the communication, i.e,, non-answering mode, com~unication between a callin~ station and a called station is establ~shed to allow conversation between the called and calling parties. In the answering mode communication does not take place, but the ca~ling party may lea~e a ~essage. The message, received as a speech signal from the calling station, is stored into a memory of the called station In the preferred ~mbodiment, ID inf~rmation and 6peech signals can be recorded in ei~her mode of operation.
During recepti~n of a signal, a radio section 12 of the called ~tation 100 receives a digital channel signal via an antenna 10. A channel decoder 14 demodulates the digital channel signal to a demodulated si~nal. A speech decoder 16 decodes a speech signal included in the demodulated signal to a decoded speech slgna~ supplie~ to a digital/analog ~D/A~ converter 18.
rhe D/A converter 18 transforms the decoded speech signal to an analog speech signal. An audio amplifier 20 amplifies the analog speech signal and supplies the analog speech signal to a speaker 22.
When a user speaks into microphone 24, the microphone 24 sends a corresponding voice 6ignal to a microphone amplifier 26 to be amplified to an adequate volta~e ~or analog/~igital conversion. An analog~digital (A/D) converter 28 conve~ts the output voltage of the microphone amplifier 26 to a speech 6ignal.
A speech ccder 30 encodes the speech signa' to a coded digital speech signal. A channel coder 32 modulates the coded digital 8 Z, 6 ~ . ~ 6 Q 6 0 I r~ 5 ~ ~J~ [ : 8 . IIJ~ 8 8 1 ( ~ ~ 6 Y Z ~Z I ~ t ~ c r A T n - ~13 ~
-6peech signal to a modulated signal. The radio section 12 sends the modulated signal via the antenna lO.
Each of the channel decoder 14 and channel coder 32 is, for example, constituted in a semiconductor chip DSP1610 made by AT&T. ~ach of the speech decoder 16 and speech coder 30 i6 constituted, for example, in a semiconductor chip MN1920813 made by Matsushita A CPU 34 controls the channel decoder 14, the speech decoder 16, the speech coder 30, the chann~l coder 32, a speech RAM 36, a number RAM 38, an operating 6ect~0n or key 40, and a display 42 as described later. The ~peech RAM 36 records the speech signal received from the speech decoder ~6. If desi~ed, the transmitted speech signal can also be recorded in the speech RAM
36. The nu~ber RAM 38 records the ID number of the calling party from the channel decoder 14. Although the speech RAM 36 and number RAM 38 are shown as separate me~ories, they can be implemented in a single memory unit. The operating section 40 is accessible for keying in commands meant for the CPU 34. The CPU 34 and operating 6ection 40 constitutes a setting means for 6etting the transceiver into one o~ the answering mode and communication mode.
FIG. 2(a) illustrates a slgnal format ~f the digital channel signal in a common control channel used when a communication channel between a calling MCA transceiver station and a receiving MCA transceiver station, or a called station, is set. For the purpo~e o~ illustration, the case is described ~here the station 200 i~ the calling station and the station 100 is the called 6tation. The digital channel signal in the common control ~3Z/0( d ~6960lOS~ ,1 :81~,'8:81 (~ 9Z~Zi~ 66[ '`~
2~39188 -channel includes a radio control signal, an identification (ID) number of the called station 100 (FIG. 1), an identification number of the calling station ~00 (FIG. 1), and other control s~gnals including a group number or an additional message signal.
When the ID number of the destinaticn coincides with an assigned ID number, at least the ID number of the calling station, is extracted from the digital channel signal at the channel decoder 14 and stored into the number RA~f 38.
FIG. 2(b) illustrates a signal format of the digital channel signal in the communication channel. T~e communication channol includes a control signal and a speech signal. The speech signal i~ extracted at the speech decoder 16 and is stored into the speech RAM 36 in the answering mode or when a record signal is input from the operating section 40.
15FIG. 3 is a flowchart demonstratin~ an oper2tion of the CPU
34 in the answering mode, The MCA transceiver station 100 is set `.r into the answering mode by the CPU 34 and operating secticn 40.
When the radio cection 12 of the MCA transceiver station 100 receives a digital channel signal of a common control channel (Step S101~, the digital channel signa1 is supplied to the channel decoder 14 and demodulated into a demodula~ed signal.
In response, An identification ~ID) number of a called, or receiving 6tation, 100 included in the demodulated Eignal is compared with an assigned ID number s~ored in the number RAM 3a (Step S102). ~f the recelved ID number coinci~es with the assigned ID number, the CPU 34 checks whether the MCA transceiver station 100 is in an automatic ans~ering mode (Step S103). If the received ID number does not coincide with the assigned ID
ez,sI d ~f``9~OiOS~$1~1~.'1 :~17~/8c 81 (~) 99Z~Zl~;t~ 73N ~rllc. A~n ., _ .
2~391~8 number, the cPU 34 return~ t~ the sa~e condition e~i~tins prior to receiving the digital channel signal.
~hen ~he MCA transceiver station 100 is in the answering ~ode (Step S103), an ID number of a calling station 200, a gr~up number, and an additional information signal are extracted from the demodulated signal at the channel decoder 14 tStep S104) and the I~ number of the calling station 200 is stored into the number RAM 38 (Step S105) thrcugh the CPU 34. The group number and the additional information signal may be also stored into the number RAM 3B. Then, the CPU 34 sets up a speech path extending ~rom the speech decoder 16 to the speech RAM 36 and the speaker 22 and a speech path extending from the speech RP~ 36 to the speech coder 30 (Step S106). Subsequently, an answer message is read out of the speech RAM 3~ (~tep S107) and sent to the calling station via the speech coder 30 and channel coder 32 ~Step S108).
The answer message is attached to the ID number of the calling station 200 at the channel coder 32 and sent to the calling station 200.
On receivinq a message or a speech signal from the calling station 200 via a communicati~n channel, the speech signal is ^ r~
decoded at the speech decoder 16 and stored into the speech RAM
36 (Step S109). At this time, an address of the speech RAM 36 in which the speech signal is stored is the same as that of the number RAM 38 in which the ID of the calling station 200 is ~tored. However, it is understood that other schemes can be employed to maintain correspondence between the speech signal address and the stored ID ~ddress. When the speech signal from the calling station 200 is finished (Step S110), the CPU 34 stops 8Z,'ZI c ~i 69e:01058'e~,'1 :81~6:81 1~) asz~z t3s~5GI
i .
storing the speech signal (step S1111. For example, when a communication end signal from the calling station is detected, the CPU 34 executes a communication end, or telease, processing ; ~not shot~n).
As described above, the ID number of the calling station included in the ~igital channel signal ic stored into the number RAM 38 in the answe~ mo~e.
Next, there will be described in detail a message recording procedure during a communication. FIG. 4 is a flowchart ~emonstrating the operation of recordin~ message not in the answer mode. ~Jhen the transceiver 100 (FIG. 1) is not in the answer mode (Step S103 in FIG. 3), the ID number of the calling station 20~, group number, and additional informat.on signal are ext~acted fro~ the demo~ulated signal ~Step S2~1) and temporally stored into a ~emory of the CPU 34 (Step S202). ~he CPU 34 moves to a talking o~er condition ~Step 203). In this condition, a received speech signal is transmitted f~om the speech dec~der 16 to the 6peaker 22 and a transmi~sion signal is sent from the microphone 24 to the speech coder 30. In the preferred embodiment, the speech decoder 16 and speech coder 30 are not enerqlzed when not in ~se. Therefore, in step s203 energy is supplied to the speec~ decoder 16 and speech coder 30 to allow communication.
During the con~ersation, the user of the transceiver station 100 may recotd the extracted data information of th~ calling station 200 by pressing the appropriate key cn the opera~ing section 40. In response, a record signal is sent ~o the CPU 34 (Step S2041 and the ID number of the callin~ station, group d ~6~6~ 5~.,'1 hllU/6E:81 1~) ~9Z~Z!3~b66[
- ~ 39188 ._ number, and additional information signal are transferred from t~e memory of the CPU 34 to the number ~M 38 (Step S205).
The transceiver st~tion 100 ~ay also be used to record the conversaticn. For that matter, the CPU 34 sets up a speech path extending from the speech coder 30 to the speech RAM 36 and a ~peech path extending from the speech decoder 16 to ~he speech RAM 36 (Step 5206). A received speech signal from the speech decoder 16 and a transmitted speech signal from the speech coder 30 are stored to the speech RA~ 36 through the CPU 34 ~Step s207). An address ~o the stored received and transmitted .speech signal in t~e speech R~ 36 is the same addres~ as that of the number RAM 38 in which the ID number of the calling station is stored. Finally, when an end signal is sent from the operating section 40, the CPU 40 stops recording the speech signals ~Step S20~
As seen from the above description, even though the receiving station is not in the answering mode, the ID number of the calling station and the speech signal are stored into the number RAM and the speech RAM, respectively. Although the transmitted speech is also stored into the speech R~ of the above-described embodi~ent, it is possible to record only the received speech signal or to dispense with recording any speech signals.
Furthermore, in the case of using one memory to store the received speech signal and the ID number into different addres~e~, the correspondence between the add~es~es is also stored into-the memory.
82iP I d ~69~53 l 5-~~ ' 1 : fl 11~i6fl: 81 (~) asG~z I~P66; ~ r l~n I c. I A . ~. . _ ._ ~1~9188 FIG. 5 is a flowchart demonstrating an operation of memory origination. This routine is executed whenever the user of the transceiver station 100 wishes to check the recGrded messages.
When a play command siqnal from the operating section 40 is received ~Step S301), the CPU 34 reads a corresponding pair of the speech signal and the ID number designated on the operating section 40 out of the speech RAM 36 and number ~1 3 a, re6pectively (Step S302). Por example, addresses in which the speech signal and the ID number are stored may be designated by the oper~ting section 40 directly. For example, when a user choose~ ~o listen to a particular message~ e.g.~ the third message, he may push a key "3" in the operating section 40 and the appropriate address for the third message will be provided by the CPU 34. Alternatively, a first speech signal i6 read out o~ a first address of the speech RAM 36 in response to the play co~mand signal from the operating section 40. If a message select slgnal is received from the operating section 40, the next speech signal of the second address is read. This operation is repeated until the designated speech signal is read. Next, the CPU 34 sets up a speech path extending from the speech RP~ 36 to ~ the speaker 22 via the speech decoder 16 (Step S303).
Subsequently, the speech signal is sent to the speaker 2~ ~Step S304).
During or after the reproduction of the speech signal, the CPU 34 waits for a first transmission command signal. If the fir~t transmi6sion command signal is input from the operating section 40 (Step S305), the I~ number of the calling station is dlsplayed on the display 42 ~step s306~. When the ID number is 8z~ci t d ~64fiOI O'8~YIII~5iI 13 111~ 0~ :8t (~ 9ZYZ ~661 ~:~ N 'NOI S iA I a d I W~u J
- - --displayed, the CPU ~4 waits for a second transmission command signal. If the second transmission command signal is received from the operating section 40 ~Step S307), the CPU 34 commences automatic cal~ing of the stored ID number, starting on memory origination by sending the ID number and group number of the station 203 being displayed to the channel coder 32 (Step S308).
The ID number of .he calling statlon 200 is sent to the base statlon 300 via the common control channel.
In the routine of FIG. 5, call origination is proceeded by lo two con6ecutive transmission commands. However, the routine can be modified to requlre only one transmission command. For example, step S307 can be eliminated and the routine can advance immedia~ely to step S30a.
The channel coder and decoder may ha~e err~r correcting capability. This results in a high quality digital communication. Although the addres6es in which the ID number and speech signal are stored into the num~er and speech ~ ~s, respectively, are the same, i~ is possible to record the I~
nu~ber and speech si~nal in the different addresses, respectively In this case, a correspondence bet~Jeen each addresses in w~icn the ID number and speech signal are 6t~red i~ ;;
stored into a third RAM ~not shown).
As described hereinbefore, according to the present invention, since an identification number of a calling station ~5 included in a received digital channel signal is ~tored in an answer mode, it is unneces6ary for the calling 6~ation to manu~lly send the identification number by DTMF signal. In addition, it is po~sible to execute memory origination, i.e., 8G/91 d LL69~ulO~ t alr~iOb 81 IY)09c,~Zl~b66; :)~N ',YOI~IA!C d ! iYO~I~
save the caller's ID information, even though a speech ~ignal is sto~ed during ordinary conversation in communicat ion mode.
.~oreover, since the identification number is sent over a high quality digital control channel having an error correcting capability, it is reliable even when sent by way of a radio channel, While the invention has been described with reference to 6pecific embodiments thereof, it will be appreciated by tho~e skllled in the art that numerous ~ariation~, modifications, and LO embodim~nts are possible, and accordingly, a'l such variations, modifications, and embodiments are to be regarded as being within the spirit and scope of the invention.
. ,t ~
:~Z,~ 51 I~S~ I: a; Id~Ot 13 ~ 1~1) E3qZ~c, t ~i6 1
Claims (17)
1. A communication device which receives a control signal over a control channel and a speech signal over a speech channel, the control signal including a first identification number of a called station and a second identification number of a calling station, comprising:
a first decoder for extracting said first and second identification numbers from said received control signal; and a first memory for recording said second identification number when said first identification number is coincided with an assigned identification number.
a first decoder for extracting said first and second identification numbers from said received control signal; and a first memory for recording said second identification number when said first identification number is coincided with an assigned identification number.
2. The communication device as claimed in claim 1, further comprising:
setting means for setting said communication device into a recording mode, wherein said second identification number is stored into said first memory.
setting means for setting said communication device into a recording mode, wherein said second identification number is stored into said first memory.
3, The communication device as claimed in claim 1, further comprising:
a second decoder for extracting said speech signal; and a second memory for recording said speech signal.
a second decoder for extracting said speech signal; and a second memory for recording said speech signal.
4. The communication device as claimed in claim 3, further comprising:
setting means for setting said communication device into a recording mode, wherein said second identification number and said speech signal are stored into said first memory and said second memory, respectively.
setting means for setting said communication device into a recording mode, wherein said second identification number and said speech signal are stored into said first memory and said second memory, respectively.
5. The communication device as claimed in claim 4, further comprising:
third memory for recording said second identification number temporarily while in a communication mode, and for transferring said second identification number to said first memory.
third memory for recording said second identification number temporarily while in a communication mode, and for transferring said second identification number to said first memory.
6. The communication device as claimed in claim 4, further comprising:
sending means for sending said second identification number stored in said first memory to said calling station in response to a tranemission command signal from said setting means.
sending means for sending said second identification number stored in said first memory to said calling station in response to a tranemission command signal from said setting means.
7. The communication device as claimed in claim 6, further comprising:
a speaker for reproducing said speech signal recorded in said second memory in response to a play command signal from said setting means before said second identification number is sent to said calling station.
a speaker for reproducing said speech signal recorded in said second memory in response to a play command signal from said setting means before said second identification number is sent to said calling station.
8. The communication device as claimed in claim 7, further comprising:
a display for displaying said second identification number in response to a first command signal after said play command signal and before said transmission command signal.
a display for displaying said second identification number in response to a first command signal after said play command signal and before said transmission command signal.
9. The communication device as claimed in claim 6, wherein said sending means comprises:
a first coder for modulating said second identification number and for adding control signals to said second identification number.
a first coder for modulating said second identification number and for adding control signals to said second identification number.
10. The communication device as claimed in claim 9, said sending means further comprising:
a second coder for coding a speech signal to be transmitted and for supplying said coded speech signal to said first coder.
a second coder for coding a speech signal to be transmitted and for supplying said coded speech signal to said first coder.
11. The communication device as claimed in claim 9, wherein said first coder and first decoder having a error correcting operation executable upon said speech signal.
12. A communication device which receives a control signal over a control channel and a speech signal over a speech channel, the control signal including a first identification number of a called station and a second identification number of a calling station, comprising:
a first circuit for extracting said first and second identification number from said received control signal;
a second circuit for recording said second identification number when said first identification number is coincided with an assigned identification number;
whereby, said communication device is operable in a communication mode and an answering mode.
a first circuit for extracting said first and second identification number from said received control signal;
a second circuit for recording said second identification number when said first identification number is coincided with an assigned identification number;
whereby, said communication device is operable in a communication mode and an answering mode.
13. The communication device as claimed in claim 12, further comprising:
third circuit for originating a call to said calling station based on said second identification number stored in said second circuit.
third circuit for originating a call to said calling station based on said second identification number stored in said second circuit.
14. The communication device as claimed in claim 13, further comprising:
fourth circuit for error correction of said speech signal.
fourth circuit for error correction of said speech signal.
15. A method for controlling a communication device which receives a control channel signal including a first identification number of a destination and a second identification numbor of a calling station, and a speech channel signal, said communication device having a memory call origination, the method comprising the steps of:
detecting whether said first identification number is coincided with an assigned number;
extracting said second identification number from said control channel signal;
storing said second identification number when said first identiflcation number coincides with said assigned number; and recording said speech signal when said communication device is set into an answer mode.
detecting whether said first identification number is coincided with an assigned number;
extracting said second identification number from said control channel signal;
storing said second identification number when said first identiflcation number coincides with said assigned number; and recording said speech signal when said communication device is set into an answer mode.
16. A method for controlling a communication device which receives a channel signal including a first identification number of a destination and a second identification number of a calling station in a common control channel to set a communication channel between said calling station and said destination, and receives a speech signal in a speech channel, said communication device having a memory call origination, the method comprising the steps of:
detecting whether or not said first identification number included in said common control channel is coincided with an assigned number;
extracting said second identification number from said control channel signal;
storing said second identification number temporarily when said first identification number coincides with said assigned number;
recording said speech signal included in said communication channel in response to a record command signal; and transferring said second identification number stored temporarily to another memory in response to said record command signal.
detecting whether or not said first identification number included in said common control channel is coincided with an assigned number;
extracting said second identification number from said control channel signal;
storing said second identification number temporarily when said first identification number coincides with said assigned number;
recording said speech signal included in said communication channel in response to a record command signal; and transferring said second identification number stored temporarily to another memory in response to said record command signal.
17. A method for controlling a communication device which receives a control channel signal including a first identification number of a destination and a second identification number of a calling station, and a speech signal in a communication channel, said communication device having a memory call origination, the method comprising the steps of:
detecting whether or not said first identification number is coincided with an assigned number;
extracting said second identification number from said control channel signal;
storing said second identification number when said first identification number coincides with said assigned number;
recording said speech signal included in said communication channel during one of an answer mode and in response to a record command signal; and originating a call to said calling station using said stored second identification number based on a transmission command signal.
detecting whether or not said first identification number is coincided with an assigned number;
extracting said second identification number from said control channel signal;
storing said second identification number when said first identification number coincides with said assigned number;
recording said speech signal included in said communication channel during one of an answer mode and in response to a record command signal; and originating a call to said calling station using said stored second identification number based on a transmission command signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33527993 | 1993-12-28 | ||
| JP335279/1993 | 1993-12-28 |
Publications (1)
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| CA2139188A1 true CA2139188A1 (en) | 1995-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002139188A Abandoned CA2139188A1 (en) | 1993-12-28 | 1994-12-28 | Memory call origination system |
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| US (1) | US5649305A (en) |
| AU (1) | AU687473B2 (en) |
| CA (1) | CA2139188A1 (en) |
| GB (1) | GB2285369B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0833049A (en) * | 1994-07-19 | 1996-02-02 | Mitsubishi Electric Corp | Portable radio communication equipment |
| GB2303025A (en) * | 1995-06-30 | 1997-02-05 | Samsung Electronics Co Ltd | Receiving and displaying a caller's telephone number in a mobile cordless telephone |
| US6816723B1 (en) * | 1997-06-12 | 2004-11-09 | Legerity, Inc. | Telephony device with integrated messaging |
| FR2764763A1 (en) * | 1997-06-17 | 1998-12-18 | Philips Electronics Nv | TELEPHONE DEVICE COMPRISING A BASE STATION AND AT LEAST ONE HANDSET DEVICE |
| US6253061B1 (en) | 1997-09-19 | 2001-06-26 | Richard J. Helferich | Systems and methods for delivering information to a transmitting and receiving device |
| US6087956A (en) | 1997-09-19 | 2000-07-11 | Helferich; Richard J. | Paging transceivers and methods for selectively erasing information |
| US6259892B1 (en) | 1997-09-19 | 2001-07-10 | Richard J. Helferich | Pager transceiver and methods for performing action on information at desired times |
| US6097941A (en) * | 1997-12-12 | 2000-08-01 | Helferich; Richard J. | User interface for voice message access |
| US6636733B1 (en) | 1997-09-19 | 2003-10-21 | Thompson Trust | Wireless messaging method |
| US6826407B1 (en) | 1999-03-29 | 2004-11-30 | Richard J. Helferich | System and method for integrating audio and visual messaging |
| US7003304B1 (en) | 1997-09-19 | 2006-02-21 | Thompson Investment Group, Llc | Paging transceivers and methods for selectively retrieving messages |
| US6983138B1 (en) | 1997-12-12 | 2006-01-03 | Richard J. Helferich | User interface for message access |
| JP4485093B2 (en) * | 2001-03-29 | 2010-06-16 | クラリオン株式会社 | Data reproduction apparatus and data reproduction system |
| US6882828B1 (en) | 2001-04-02 | 2005-04-19 | Bellsouth Intellectual Property Corporation | Missed call notification to cellular telephone using short text messaging |
| GB0108603D0 (en) * | 2001-04-05 | 2001-05-23 | Moores Toby | Voice recording methods and systems |
| US7010288B2 (en) * | 2002-05-06 | 2006-03-07 | Cingular Wireless Ii, Llc | System and method for providing an automatic response to a telephone call |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3669443A (en) * | 1970-04-01 | 1972-06-13 | Ivanhoe Research Corp | Method and system for automatically forming parts for garments, and the like |
| US4625079A (en) * | 1981-07-31 | 1986-11-25 | Horacio Castro | Method and apparatus for activating through phone telecommand an announcer-recorder, and for selectively activating through the sending of codes consisting of signals at least another automatic call attention phone device |
| JPS6021660A (en) * | 1983-07-18 | 1985-02-04 | Hashimoto Corp | Digital type automatic answering telephone set |
| US4661472A (en) * | 1985-05-09 | 1987-04-28 | The Salk Institute For Biological Studies | GnRH antagonists IX |
| US4747122A (en) * | 1986-10-27 | 1988-05-24 | Mobile Communications Corporation Of America | Mobile paging call back system and related method |
| USRE34976E (en) * | 1987-07-24 | 1995-06-20 | Richard J. Helferich | Analog/digital voice storage cellular telephone |
| JPH02244856A (en) * | 1989-03-16 | 1990-09-28 | Toshiba Corp | Radio telephone system |
| KR920009226B1 (en) * | 1989-09-08 | 1992-10-15 | 삼성전자 주식회사 | Telephone apparatus and control method |
| US5117449A (en) * | 1989-11-03 | 1992-05-26 | Motorola, Inc. | Dual receiver apparatus for integrated paging and radiotelephone functions |
| US5442685A (en) * | 1990-06-13 | 1995-08-15 | Matsushita Electric Industrial Co., Ltd. | Automatic telephone answering apparatus including conversion recording mode |
| JP3222485B2 (en) * | 1990-06-20 | 2001-10-29 | エニー株式会社 | Portable wireless transmission / reception method |
| US5251250A (en) * | 1990-09-12 | 1993-10-05 | Alpine Electronics, Inc. | Method of storing callers telephone numbers in during-absence automatic telephone answering state |
| GB2251764B (en) * | 1991-01-11 | 1995-06-28 | Technophone Ltd | Telephone apparatus with calling line identification |
| JPH04314246A (en) * | 1991-04-12 | 1992-11-05 | Matsushita Electric Ind Co Ltd | Automatic answering telephone set |
| JPH0514478A (en) * | 1991-07-01 | 1993-01-22 | Pioneer Electron Corp | On-vehicle telephone set with automatic answering function |
| JPH0537456A (en) * | 1991-07-31 | 1993-02-12 | Nec Corp | Call reconnecting system |
| JPH05102922A (en) * | 1991-10-09 | 1993-04-23 | Matsushita Electric Ind Co Ltd | Paging portable telephone set and its using method |
| US5333176A (en) * | 1992-04-30 | 1994-07-26 | Murata Machinery, Ltd. | Cellular hand held portable speakerphone system having an interface adapter |
-
1994
- 1994-12-28 US US08/365,310 patent/US5649305A/en not_active Expired - Lifetime
- 1994-12-28 CA CA002139188A patent/CA2139188A1/en not_active Abandoned
- 1994-12-28 GB GB9426281A patent/GB2285369B/en not_active Expired - Lifetime
- 1994-12-29 AU AU81848/94A patent/AU687473B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU687473B2 (en) | 1998-02-26 |
| AU8184894A (en) | 1995-07-06 |
| US5649305A (en) | 1997-07-15 |
| GB9426281D0 (en) | 1995-02-22 |
| GB2285369B (en) | 1998-04-15 |
| GB2285369A (en) | 1995-07-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |