WO1999062289A1 - Communications webs with personal communications links for pstn subscribers - Google Patents
Communications webs with personal communications links for pstn subscribers Download PDFInfo
- Publication number
- WO1999062289A1 WO1999062289A1 PCT/US1999/010350 US9910350W WO9962289A1 WO 1999062289 A1 WO1999062289 A1 WO 1999062289A1 US 9910350 W US9910350 W US 9910350W WO 9962289 A1 WO9962289 A1 WO 9962289A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuitry
- web
- communications link
- multiplex
- control unit
- Prior art date
Links
Classifications
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- 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
- H04M1/725—Cordless telephones
- H04M1/72502—Cordless telephones with one base station connected to a single line
- H04M1/72505—Radio link set-up procedures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/71—Substation extension arrangements
- H04M1/715—Substation extension arrangements using two or more extensions per line
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- 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
- H04M1/725—Cordless telephones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/16—WPBX [Wireless Private Branch Exchange]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/253—Telephone sets using digital voice transmission
- H04M1/2535—Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13034—A/D conversion, code compression/expansion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1305—Software aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13076—Distributing frame, MDF, cross-connect switch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1308—Power supply
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13092—Scanning of subscriber lines, monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13093—Personal computer, PC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13096—Digital apparatus individually associated with a subscriber line, digital line circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13098—Mobile subscriber
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13106—Microprocessor, CPU
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13175—Graphical user interface [GUI], WWW interface, visual indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13179—Fax, still picture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1319—Amplifier, attenuation circuit, echo suppressor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13209—ISDN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1324—Conference call
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13292—Time division multiplexing, TDM
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1332—Logic circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13322—Integrated circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13389—LAN, internet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13405—Dual frequency signaling, DTMF
Definitions
- the PCL is a small, slim, portable unit operated by rechargeable batteries.
- the PCL includes independent talk/listen paths from the PCL to the NCU. Duplexing circuitry either within the NCU or the PCL allow the speakerphone capability to be added.
- the PCL automatically adjusts from high-volume/high-microphone sensitivity for speakerphone operation to low-volume/low-microphone sensitivity for conventional handset operation.
- the PCL may include a conductive strip along its side that, when gripped, automatically adjusts the gain to the speaker and microphone elements.
- the signals being properly switched in the CAB as designated for the subscriber's devices are then delivered to the NCU's "Radio Multiplex Engine” as shown in Figure 3 A with numeral 670.
- the RME multiplexes the signals as, for instance, by time division multiplex access, or according to any desired format, onto a number of predetermined channels for bandwidth and RF frequency conservation.
- the multiplexed signals are delivered to Radio Transceiver 680 where the signals may be conditioned, again multiplexed according to any desired format, and modulated onto an appropriate RF carrier or carriers in a programmable manner or as otherwise desired for transmission to WAUs 200, handsets 300 and other devices if desired.
- Multiplexing, modulation, and other processing in order to render signals at the CAB output compatible for RF transmission may occur in the same module or any desired combination of modules or circuits.
- the Network Interface for a system according to the present invention which accommodates four POTS lines, could take the form of a quad arrangement of independent Direct Access Arrangement ("DAA") circuits 690, each having appropriate transformer, isolator and line protection circuitry as required, a two to four wire hybrid 700, and a coder / decoder ("code") 10.
- DAA Direct Access Arrangement
- code code
- the Network Interface circuitry is accordingly adapted for appropriate isolation, impedance matching, line protection, medium conversion (two wire to four wire) and analog-to-digital / digital-to-analog conversion in order for its output signal 720 to be coupled to CAB 660.
- the Accessory Block functionality may contain features which add flexibility and additional levels of services to communications webs according to the present invention.
- the Accessory Block functionality may include, for instance, DTMF generator, DTMF decoder, speech synthesizer, speech recognizer, speech compression expander (ADCPM), digital speech interpolation (DSI), caller ID decoder, low or high speed telephone modem, fax modem capable of Group III or similar functions, real time clock / calendar digital telephone answering device (TAD) and other functionality as desired.
- RME signals 770 are coupled, in systems of the present invention, to wireless Radio Transceiver ("RT") circuitry 680 as shown in Figure 3 A.
- the RT 680 may be a low cost multiplexed Radio Transceiver or set of transceivers which provides proper modulation onto RF carriers as desired with or without multiplexing and duplexing according to any of the following formats or others: TDMA / TDD, TDMA / FDD, CDMA / FDD, CDMA / TDD, FDMA / TDD, or FDMA / FDD, or any of these with frequency hopping or direct frequency spread spectrum.
- the primary function is to achieve transmission of multiple simultaneous independent data streams to WAUs 200 and handsets 300.
- Duplexing means methods of simultaneous upstream and downstream communications, such as simultaneous communications from an NCU 100 to a given handset 300 and from the handset back to the NCU.
- Channelizing means methods of bandwidth sharing so that multiple systems, each consisting of an NCU, handsets and WAU's, which may happen to fall within radio range of one another, such as in an apartment building, for instance, can share the same band but not interfere with one another.
- DMT/TDD may offer some advantages in multipath fading environments over TDD, and may be considered. This option is economically imposing until DMT (also known as orthogonal discrete frequency modulation or ODFM), which requires rapid fast Fourier transform and inverse FFT calculations, becomes more tractable using conventional DSP engines.
- DMT also known as orthogonal discrete frequency modulation or ODFM
- ODFM orthogonal discrete frequency modulation
- Any modulation format can be overlaid with spread spectrum.
- Frequency hopping can be used as a multiple access technique.
- Spread spectrum systems are afforded the advantage of higher transmit power under the radio rules governing unlicensed radio transmitters in some countries, including the U.S. and Canada.
- some direct sequence implementations have anti-multipath properties which can be exploited to provide more robust communications. Both techniques may offer some advantages with respect to mitigating interference from like or unlike systems operating within the same bandwidth. For these reasons, spread spectrum techniques may be employed in the preferred embodiment of the invention.
- the RT unit 680 can communicate with other NCUs 100 that fall within radio range.
- Fig. 15 illustrates PCL circuitry, according to a preferred embodiment of the present invention.
- a single button 590 causes the PCL 500 to go off-hook.
- the button 590 may also be used for other purposes, as determined by software stored in the PCL 500 or the NCU 100.
- the PCL 500 includes a Radio Multiplex Engine 1500 that receives and demodulates downstream signals via radiofrequency link from NCU 100, a Control
- a power source 1509 such as rechargeable Lithium ion cells, application-specific integrated circuits ("ASICs") 1512, and analog / digital conversion circuits 1514 such as so-called "codec's. Talk and listen paths between the PCL 500 and the NCU are preferably independent.
- the PCL may also include a radio transceiver similar to the one used in the wireless access units.
- the PCL 500 includes gain/balance and perhaps echo canceller circuitry 1515 for controlling the sensitivity of microphone 580 and speaker 570.
- conductive strips 582, 584 reduce the gain to microphone 580 and speaker 570, thus allowing the unit 500 to be held closely to the ear.
- the unit 500 acts as a speakerphone, with high volume through speaker 570 and high voice sensitivity through microphone 580.
- conductive strips 582, 584 are illustrated, other methods may be used to reduce the gain to PCL components when lifted to a user's ear. For example, a passive infrared remote (“PIR”) detector located near the speaker may be used to detect the heat of the user's ear.
- PIR passive infrared remote
- step 1606 the PCL adjusts its frequency for "waking up" downward, such that it listens for messages from the NCU 100 less frequently.
- the time during which the PCL is active and awake is increased, however, resulting in no substantial change in duty cycle or battery life.
- the PCL runs a direct-sequence spread spectrum ("DSSS") algorithm on the incoming data stream.
- DSSS direct-sequence spread spectrum
- circuitry in the PCL 500 dumps raw demodulated data into a correlator, which may be implemented in hardware or software.
- the PCL 500 is able to extend its receive sensitivity in direct proportion.
- a spreading code of length 100 a 20 dB improvement in receiver sensitivity may be realized. This would extend line-of-sight range approximately ten-fold, and range over typical terrain and foliage would be extended approximately three-fold.
- This improved range could be used to locate, either in range or in range and bearing (as discussed above), a PCL that had been carried beyond the normal communications range of the system. While normal, two-way full-duplex, real-time voice communications might not be feasible while operating in this extended-range mode, digital message, tone alerting, triggering or prerecorded or stored voice instructions, or sending any other short-length digitally coded message would be possible.
- the NCU 100 may also communicate with the PCL 500 using basic alphanumeric messaging.
- the NCU 100 may transmit a series of alpha-numeric symbols directly to the PCL 500.
- the PCL 500 may include integrated circuitry for receiving the message and displaying the message on the display 575.
- the PCL 500 may be modified to operate in two modes: (1) a standard mode when the PCL 500 is within the range of the NCU 100; and (2) a cellular or PCS mode when the PCL 500 is outside the range of the NCU 100.
- the PCL 500 listens for periodic pings from the NCU 100 to confirm that it is within the range of the NCU 100.
- mode switching circuitry allows the PCL to act like a standard cellular or PCS telephone.
- the PCL 500 may be modified to operate as a standard cellular or PCS telephone while within the range of the NCU 100.
- a system according to the present invention is shown in Figure 12 with four incoming POTS lines, an NCU 100 in the basement or attic, a wireless handset, and three Wireless Access Units 200 which correspond to a telephone, a computer, and a fax machine.
- the system may be programmed as follows: POTS line 1 is programmed in the CAB 660 to ring through and connect to the LCD handset 300. POTS line 2 rings through and connects to Wireless Access Unit number 1 which is connected to a standard telephone via an RJ-11 jack. POTS line 3 connects to Wireless Access Unit number 2, which, in turn, accommodates a fax machine. POTS line 4 connects to Wireless Access Unit number 3 which connects via RS-232 interface to a personal computer.
- Signals from POTS lines 1-4 are coupled to Radio Multiplex Engine 670, multiplexed as in TDMA format and modulated onto an RF carrier in RT or digital radio modem 680 for transmission.
- Handset 300 receives the signal from the NCU 100, and demodulates, demultiplexes and processes the information intended for handset 300. That information is contained in a signal provided to the interfacing circuitry and coder / decoder 650 for delivery to the human interface. The signals are also provided to an LCD driver and screen. In an upstream direction, signals from the keypad and microphone are processed, multiplexed, modulated and forwarded to NCU 100 which ultimately demodulates, demultiplexes and processes the signals for delivery to POTS line 1.
- POTS line 3 could be reprogrammed in the CAB 660 to accommodate Wireless Access Unit number 3 for computer communications while POTS line 2 is configured to ring through to Wireless Access Units 1 and 2 for the telephone and fax machine. Any other combination may be employed as desired, as the user desires new services or different services, or adds devices to the communications web with their attendant Wireless Access Units.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002330381A CA2330381A1 (en) | 1998-05-22 | 1999-05-12 | Communications webs with personal communications links for pstn subscribers |
EP99921899A EP1080599A1 (en) | 1998-05-22 | 1999-05-12 | Communications webs with personal communications links for pstn subscribers |
BR9910619-1A BR9910619A (en) | 1998-05-22 | 1999-05-12 | Communication networks with personal communication links for pstn subscribers |
MXPA00011485A MXPA00011485A (en) | 1998-05-22 | 1999-05-12 | Communications webs with personal communications links for pstn subscribers. |
AU38995/99A AU3899599A (en) | 1998-05-22 | 1999-05-12 | Communications webs with personal communications links for pstn subscribers |
KR1020007013136A KR20010034888A (en) | 1998-05-22 | 1999-05-12 | Communications webs with personal communications links for pstn subscribers |
JP2000551571A JP2002517146A (en) | 1998-05-22 | 1999-05-12 | Communication web with personal communication link for PSTN subscribers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/084,113 | 1998-05-22 | ||
US09/084,113 US6404761B1 (en) | 1994-06-17 | 1998-05-22 | Communications webs with personal communications links for PSTN subscribers |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999062289A1 true WO1999062289A1 (en) | 1999-12-02 |
Family
ID=22182958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/010350 WO1999062289A1 (en) | 1998-05-22 | 1999-05-12 | Communications webs with personal communications links for pstn subscribers |
Country Status (12)
Country | Link |
---|---|
US (1) | US6404761B1 (en) |
EP (1) | EP1080599A1 (en) |
JP (1) | JP2002517146A (en) |
KR (1) | KR20010034888A (en) |
CN (1) | CN1302521A (en) |
AR (1) | AR019561A1 (en) |
AU (1) | AU3899599A (en) |
BR (1) | BR9910619A (en) |
CA (1) | CA2330381A1 (en) |
MX (1) | MXPA00011485A (en) |
RU (1) | RU2000132202A (en) |
WO (1) | WO1999062289A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10011303A1 (en) * | 2000-03-09 | 2001-09-20 | S. Siedle & Soehne,Telefon- Und Telegrafenwerke Stiftung & Co | Intercom system for apartments, has interface that connects with three different signal transmission devices which transmit signal between door and apartment stations |
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146473A (en) * | 1989-08-14 | 1992-09-08 | International Mobile Machines Corporation | Subscriber unit for wireless digital subscriber communication system |
US6230133B1 (en) * | 1998-06-24 | 2001-05-08 | Ameritech, Inc. | Home office communication system and method |
US7548787B2 (en) | 2005-08-03 | 2009-06-16 | Kamilo Feher | Medical diagnostic and communication system |
US7260369B2 (en) | 2005-08-03 | 2007-08-21 | Kamilo Feher | Location finder, tracker, communication and remote control system |
US9373251B2 (en) | 1999-08-09 | 2016-06-21 | Kamilo Feher | Base station devices and automobile wireless communication systems |
US9813270B2 (en) | 1999-08-09 | 2017-11-07 | Kamilo Feher | Heart rate sensor and medical diagnostics wireless devices |
US9307407B1 (en) | 1999-08-09 | 2016-04-05 | Kamilo Feher | DNA and fingerprint authentication of mobile devices |
US7990985B2 (en) * | 2000-01-31 | 2011-08-02 | 3E Technologies International, Inc. | Broadband communications access device |
CN1416632A (en) * | 2000-01-31 | 2003-05-07 | 爱普泰克微系统公司 | Broadband communications access device |
US7382786B2 (en) * | 2000-01-31 | 2008-06-03 | 3E Technologies International, Inc. | Integrated phone-based home gateway system with a broadband communication device |
US6477150B1 (en) * | 2000-03-03 | 2002-11-05 | Qualcomm, Inc. | System and method for providing group communication services in an existing communication system |
ATE339758T1 (en) * | 2000-06-30 | 2006-10-15 | Cit Alcatel | CONTROLLING THE CAPACITY OF A DISTRIBUTED VOICE RECOGNITION SYSTEM |
US7266379B2 (en) * | 2001-05-30 | 2007-09-04 | Palm, Inc. | Resource location through location history |
US20030087602A1 (en) * | 2001-11-05 | 2003-05-08 | Palm, Inc. | Data prioritization and distribution limitation system and method |
US20030104782A1 (en) * | 2001-11-30 | 2003-06-05 | Palm, Inc. | Object tagging system and method |
US7970368B2 (en) * | 2002-02-07 | 2011-06-28 | Qualcomm Incorporated | Wired cellular telephone system |
US7130282B2 (en) * | 2002-09-20 | 2006-10-31 | Qualcomm Inc | Communication device for providing multimedia in a group communication network |
US8411594B2 (en) | 2002-09-20 | 2013-04-02 | Qualcomm Incorporated | Communication manager for providing multimedia in a group communication network |
KR100475439B1 (en) * | 2003-01-30 | 2005-03-10 | 삼성전자주식회사 | method for IDLC subscriber batch registration using Program Loaded Data of exchange and Element Management System server for the method |
US20040205244A1 (en) | 2003-02-14 | 2004-10-14 | Marsico Robert G. | Network device management |
US7171194B2 (en) * | 2003-02-14 | 2007-01-30 | Maxon, Llc | Network device management |
US6965564B2 (en) | 2003-02-14 | 2005-11-15 | America Online, Inc. | Wireless datagram transaction protocol system |
US7486649B2 (en) * | 2003-02-14 | 2009-02-03 | Marsico Robert G | Telephone management system and method |
US8654936B1 (en) | 2004-02-24 | 2014-02-18 | At&T Intellectual Property I, L.P. | Home control, monitoring and communication system using remote voice commands |
US7230930B2 (en) * | 2004-03-23 | 2007-06-12 | Motorola, Inc. | Mode shifting communications system and method |
KR100681337B1 (en) | 2004-06-21 | 2007-02-15 | 동방정보통신주식회사 | Multi-functional teletphone |
DE102004057380A1 (en) * | 2004-11-26 | 2006-06-01 | Te.Inter.Com Gmbh | Telecommunications facility, e.g. for ISDN communication, has communications units to produce links to service provider and series of interfaces |
US7593392B1 (en) * | 2005-02-02 | 2009-09-22 | At&T Corp. | Method and apparatus for providing asynchronous audio messaging |
US20060246899A1 (en) * | 2005-04-28 | 2006-11-02 | Research In Motion Limited | System and method for providing network advertisement information via a network advertisement broker (NAB) |
US8428584B2 (en) | 2005-07-01 | 2013-04-23 | Research In Motion Limited | System and method for accelerating network selection by a wireless user equipment (UE) device |
US10009956B1 (en) | 2017-09-02 | 2018-06-26 | Kamilo Feher | OFDM, 3G and 4G cellular multimode systems and wireless mobile networks |
US20070189271A1 (en) * | 2006-02-15 | 2007-08-16 | Borislow Daniel M | Computer-related devices and techniques for facilitating an emergency call |
US20070201450A1 (en) * | 2006-02-15 | 2007-08-30 | Borislow Daniel M | Network adapter |
EP1858278B1 (en) | 2006-05-19 | 2013-05-15 | Research In Motion Limited | System and method for facilitating accelerated network selection in a radio network enviroment |
US20080062937A1 (en) * | 2006-09-11 | 2008-03-13 | Carl Mansfield | Telephonic Device and Service Center-Assisted Network Setup |
US9031583B2 (en) | 2007-04-11 | 2015-05-12 | Qualcomm Incorporated | Notification on mobile device based on location of other mobile device |
US9140552B2 (en) * | 2008-07-02 | 2015-09-22 | Qualcomm Incorporated | User defined names for displaying monitored location |
US20080254811A1 (en) | 2007-04-11 | 2008-10-16 | Palm, Inc. | System and method for monitoring locations of mobile devices |
US9288751B2 (en) * | 2007-08-29 | 2016-03-15 | Qualcomm Incorporated | Use of position data to select wireless access point |
US8532285B2 (en) * | 2007-09-05 | 2013-09-10 | Avaya Inc. | Method and apparatus for call control using motion and position information |
CN101521015B (en) * | 2008-02-27 | 2011-08-24 | 旭丽电子(广州)有限公司 | Method for reducing sound echo, relevant echo eliminating device and speech device |
US8395547B2 (en) * | 2009-08-27 | 2013-03-12 | Hewlett-Packard Development Company, L.P. | Location tracking for mobile computing device |
US8755815B2 (en) | 2010-08-31 | 2014-06-17 | Qualcomm Incorporated | Use of wireless access point ID for position determination |
KR101624920B1 (en) * | 2009-11-16 | 2016-05-27 | 삼성전자주식회사 | Apparatus and method for calling of a portable terminal |
US20110237274A1 (en) * | 2010-03-25 | 2011-09-29 | Palm, Inc. | Mobile computing device having relative positioning circuit |
EP2622920B1 (en) | 2010-09-29 | 2024-01-17 | QUALCOMM Incorporated | Non-transient computer readable storage medium and mobile computing device employing matching of access point identifiers |
US9779731B1 (en) * | 2012-08-20 | 2017-10-03 | Amazon Technologies, Inc. | Echo cancellation based on shared reference signals |
US10147441B1 (en) | 2013-12-19 | 2018-12-04 | Amazon Technologies, Inc. | Voice controlled system |
JP6299340B2 (en) * | 2014-03-31 | 2018-03-28 | 京セラドキュメントソリューションズ株式会社 | Transfer side facsimile apparatus, facsimile communication system, and reception side facsimile apparatus |
US10285174B2 (en) | 2016-01-11 | 2019-05-07 | Qualcomm Incorporated | Uplink data channel design for narrowband devices |
US10541726B1 (en) | 2018-07-02 | 2020-01-21 | Google Llc | Data over power line design |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2174571A (en) * | 1985-03-20 | 1986-11-05 | Int Mobile Machines | Digital wireless telephone system |
Family Cites Families (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3949172A (en) | 1974-02-08 | 1976-04-06 | Brown William M | Telephone extension system utilizing power line carrier signals |
US4058678A (en) | 1976-04-07 | 1977-11-15 | Astech, Inc. | Remote signalling to a telephone line utilizing power line carrier signals |
US4230908A (en) | 1979-01-22 | 1980-10-28 | Plessey Canada Limited | Telephone summing circuit |
US4479033A (en) | 1982-03-29 | 1984-10-23 | Astech, Inc. | Telephone extension system utilizing power line carrier signals |
US4456793A (en) | 1982-06-09 | 1984-06-26 | Bell Telephone Laboratories, Incorporated | Cordless telephone system |
US4523307A (en) | 1982-11-30 | 1985-06-11 | Astech, Inc. | Power line carrier multi telephone extension system for full duplex conferencing and intercom between telephones |
US4514594A (en) | 1982-09-30 | 1985-04-30 | Astech, Inc. | Power line carrier telephone extension system for full duplex conferencing between telephones and having telephone call hold capability |
US4475193A (en) | 1982-09-30 | 1984-10-02 | Astech, Inc. | Power line carrier multi telephone extension system for full duplex conferencing between telephones |
US4737975A (en) | 1984-09-18 | 1988-04-12 | Metrofone, Inc. | Programmable system for interfacing a standard telephone set with a radio transceiver |
US4658096A (en) | 1984-09-18 | 1987-04-14 | Metrofone, Inc. | System for interfacing a standard telephone set with a radio transceiver |
US4775997A (en) | 1984-09-18 | 1988-10-04 | Metrofone, Inc. | System for interfacing a standard telephone set with a radio transceiver |
JPS6248131A (en) | 1985-08-27 | 1987-03-02 | Nippon Telegr & Teleph Corp <Ntt> | Radiotelephony system |
US4825448A (en) | 1986-08-07 | 1989-04-25 | International Mobile Machines Corporation | Subscriber unit for wireless digital telephone system |
US5168507A (en) | 1986-08-07 | 1992-12-01 | International Mobile Machines Corporation | Automatic adaptive equalizer |
US4779262A (en) | 1986-10-21 | 1988-10-18 | International Mobile Machines Corp. | Connection of subscriber communication network base station to external information network |
US4792946A (en) | 1987-04-07 | 1988-12-20 | Spectrum Electronics, Inc. | Wireless local area network for use in neighborhoods |
US4922517A (en) | 1987-04-08 | 1990-05-01 | Metrofone, Inc. | System for interfacing a standard telephone set with a radio transceiver |
JPS6416051A (en) | 1987-07-10 | 1989-01-19 | Meisei Electric Co Ltd | Telephone set |
US4785450B1 (en) | 1987-08-06 | 1999-10-12 | Interdigital Tech Corp | Apparatus and method for obtaining frequency agility in digital communication system |
JPS6457860A (en) | 1987-08-28 | 1989-03-06 | Omron Tateisi Electronics Co | Telephone system |
JPH01309530A (en) | 1988-06-08 | 1989-12-13 | Victor Co Of Japan Ltd | Premises radio telephone system |
JPH01309531A (en) | 1988-06-08 | 1989-12-13 | Toshiba Corp | Radio telephone system |
JPH0234047A (en) | 1988-07-25 | 1990-02-05 | Toshiba Corp | Radio telephone system |
JP2635703B2 (en) | 1988-07-25 | 1997-07-30 | 株式会社東芝 | Wireless telephone system |
JPH0813063B2 (en) | 1988-08-30 | 1996-02-07 | アイホン株式会社 | Cordless home telephone system |
US5072308A (en) | 1989-06-21 | 1991-12-10 | International Mobile Machines Corporation | Communication signal compression system and method |
US5146473A (en) | 1989-08-14 | 1992-09-08 | International Mobile Machines Corporation | Subscriber unit for wireless digital subscriber communication system |
US5008900A (en) | 1989-08-14 | 1991-04-16 | International Mobile Machines Corporation | Subscriber unit for wireless digital subscriber communication system |
US5327478A (en) | 1989-08-31 | 1994-07-05 | Lebowitz Mayer M | Cellular network data transmission system |
JPH03179957A (en) | 1989-12-08 | 1991-08-05 | Sekisui Chem Co Ltd | Telephone system |
US5384826A (en) | 1990-10-01 | 1995-01-24 | At&T Bell Laboratories | Distributed packetized switching cellular radio telephone communication system with handoff |
US5260941A (en) | 1990-10-31 | 1993-11-09 | Rose Communications, Inc. | Digital radio telephone system |
US5299226A (en) | 1990-11-16 | 1994-03-29 | Interdigital Technology Corporation | Adaptive power control for a spread spectrum communications system and method |
US5224120A (en) | 1990-12-05 | 1993-06-29 | Interdigital Technology Corporation | Dynamic capacity allocation CDMA spread spectrum communications |
US5263045A (en) | 1990-12-05 | 1993-11-16 | Interdigital Technology Corporation | Spread spectrum conference call system and method |
US5228056A (en) | 1990-12-14 | 1993-07-13 | Interdigital Technology Corporation | Synchronous spread-spectrum communications system and method |
US5274665A (en) | 1990-12-14 | 1993-12-28 | Interdigital Technology Corporation | Polyopoly overlapping spread spectrum communication system and method |
US5228053A (en) | 1991-05-15 | 1993-07-13 | Interdigital Technology Corporation | Spread spectrum cellular overlay CDMA communications system |
US5289497A (en) | 1991-05-23 | 1994-02-22 | Interdigital Technology Corporation | Broadcast synchronized communication system |
US5212830A (en) | 1991-05-31 | 1993-05-18 | International Mobile Machines Corporation | Radio frequency communications system |
CA2053776C (en) | 1991-10-22 | 2000-05-23 | Rolf G. Meier | Cov wireless interface |
JP3200891B2 (en) | 1991-11-26 | 2001-08-20 | 松下電器産業株式会社 | Wireless telephone equipment |
US5276703A (en) | 1992-01-13 | 1994-01-04 | Windata, Inc. | Wireless local area network communications system |
US5260967A (en) | 1992-01-13 | 1993-11-09 | Interdigital Technology Corporation | CDMA/TDMA spread-spectrum communications system and method |
US5307399A (en) | 1992-03-06 | 1994-04-26 | Glenayre Electronics, Inc. | Paging system that allows caller/subscriber interconnection |
US5416778A (en) | 1992-06-26 | 1995-05-16 | U.S. Philips Corporation | Digital radio communication system and primary and secondary station for use in such a system |
US5361294A (en) | 1992-12-23 | 1994-11-01 | Motorola, Inc. | Method and apparatus for noise quieting during resynchronization of a digital communication system |
SE516173C2 (en) | 1993-02-16 | 2001-11-26 | Ericsson Telefon Ab L M | Device for telecommunications |
US5381446A (en) | 1993-06-25 | 1995-01-10 | Digital Wireless Corp. | Digital implementation of spread spectrum communications system |
SE9304119D0 (en) | 1993-12-10 | 1993-12-10 | Ericsson Ge Mobile Communicat | Devices and mobile stations for providing packaged data communication in digital TDMA cellular systems |
US5497373A (en) | 1994-03-22 | 1996-03-05 | Ericsson Messaging Systems Inc. | Multi-media interface |
US5805582B1 (en) | 1994-06-17 | 1999-11-09 | Home Wireless Networks Inc | Home personal communications system |
US6058104A (en) * | 1994-06-17 | 2000-05-02 | Home Wireless Networks, Inc. | Communications webs for PSTN subscribers |
US5555258A (en) | 1994-06-17 | 1996-09-10 | P. Stuckey McIntosh | Home personal communication system |
US5610912A (en) | 1994-08-01 | 1997-03-11 | British Telecommunications Public Limited Company | Switching in a telecommunications service node |
JPH09508226A (en) | 1994-10-13 | 1997-08-19 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | Wireless object positioning system, central office, and wireless alarm system |
GB9606601D0 (en) * | 1995-06-02 | 1996-06-05 | Dsc Communications | Multiline wireless transmission in a wireless telecommunications system |
JPH09326869A (en) | 1996-06-05 | 1997-12-16 | Hitachi Ltd | Remote system |
US6097733A (en) * | 1997-06-13 | 2000-08-01 | Nortel Networks Corporation | System and associated method of operation for managing bandwidth in a wireless communication system supporting multimedia communications |
EP0918423B1 (en) | 1997-10-15 | 2004-03-10 | Nokia Corporation | Mobile phone for Internet applications |
-
1998
- 1998-05-22 US US09/084,113 patent/US6404761B1/en not_active Expired - Lifetime
-
1999
- 1999-05-12 KR KR1020007013136A patent/KR20010034888A/en not_active Application Discontinuation
- 1999-05-12 MX MXPA00011485A patent/MXPA00011485A/en unknown
- 1999-05-12 AU AU38995/99A patent/AU3899599A/en not_active Abandoned
- 1999-05-12 EP EP99921899A patent/EP1080599A1/en not_active Withdrawn
- 1999-05-12 CA CA002330381A patent/CA2330381A1/en not_active Abandoned
- 1999-05-12 CN CN99806449A patent/CN1302521A/en active Pending
- 1999-05-12 JP JP2000551571A patent/JP2002517146A/en active Pending
- 1999-05-12 WO PCT/US1999/010350 patent/WO1999062289A1/en not_active Application Discontinuation
- 1999-05-12 RU RU2000132202/09A patent/RU2000132202A/en not_active Application Discontinuation
- 1999-05-12 BR BR9910619-1A patent/BR9910619A/en not_active Application Discontinuation
- 1999-05-20 AR ARP990102403A patent/AR019561A1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2174571A (en) * | 1985-03-20 | 1986-11-05 | Int Mobile Machines | Digital wireless telephone system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10011303A1 (en) * | 2000-03-09 | 2001-09-20 | S. Siedle & Soehne,Telefon- Und Telegrafenwerke Stiftung & Co | Intercom system for apartments, has interface that connects with three different signal transmission devices which transmit signal between door and apartment stations |
DE10011303C2 (en) * | 2000-03-09 | 2003-09-25 | Siedle & Soehne S | Door system, method for operating a door system and use of the OFDM method when operating a door system |
Also Published As
Publication number | Publication date |
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EP1080599A1 (en) | 2001-03-07 |
KR20010034888A (en) | 2001-04-25 |
US6404761B1 (en) | 2002-06-11 |
RU2000132202A (en) | 2002-11-27 |
JP2002517146A (en) | 2002-06-11 |
BR9910619A (en) | 2001-01-30 |
MXPA00011485A (en) | 2002-07-02 |
CN1302521A (en) | 2001-07-04 |
CA2330381A1 (en) | 1999-12-02 |
AR019561A1 (en) | 2002-02-27 |
AU3899599A (en) | 1999-12-13 |
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