CA2303719A1 - Volume control for an alert generator - Google Patents
Volume control for an alert generator Download PDFInfo
- Publication number
- CA2303719A1 CA2303719A1 CA002303719A CA2303719A CA2303719A1 CA 2303719 A1 CA2303719 A1 CA 2303719A1 CA 002303719 A CA002303719 A CA 002303719A CA 2303719 A CA2303719 A CA 2303719A CA 2303719 A1 CA2303719 A1 CA 2303719A1
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- CA
- Canada
- Prior art keywords
- alert
- volume
- responsive
- processor
- analyzing
- 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
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000004458 analytical method Methods 0.000 claims abstract description 14
- 230000004044 response Effects 0.000 claims description 22
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
- H04M19/042—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations with variable loudness of the ringing tone, e.g. variable envelope or amplitude of ring signal
Abstract
An apparatus and method for controlling the volume of a device's user alert sound based on an analysis of the device's environment. The device (20) emits a signal and receives a resulting reflected signal. A processor (25) measures characteristics such as the amplitude and/or delay of the reflected signal to determine the type of environment in which the communication device (20) is located. The volume of the alert sound is then adjusted based on the type of environment indicted by the characteristics of the reflected signal. For example, if the characteristics indicate a closed environment such as a brief case, the volume is adjusted to a high level, and if the characteristics indicate an open environment such as a desk top, the volume is adjusted to a low level.
Description
VOLUME CONTROL FOR AN ALERT GENERATOR
Technical Field The present invention relates generally to the field of telephones and more particularly to telephones controlling the volume of an alert.
Background of the Invention Telephones have a ringing tone or other user alert sound that indicates when there is an 1o incoming call. In some telephones the volume of the ringing tone is adjustable so that it can be audible in different environments having different noise levels.
One type of telephone that has an adjustable volume of the ringing tone is shown in European patent application EP 0 507 482 A2. European patent application EP 0 discloses a telephone in which a circuit detects the level of an ambient noise signal and produces a detection signal responsive to the ambient noise signal. The detection signal is then used to produce a control signal that controls the ringing tone volume.
The above-described technique for controlling ringing tone volume suffers from a disadvantage. If the telephone is kept in a depository like a briefcase or in the pocket of a coat or jacket, the ringing tone will not be audible. This problem occurs because the ringing tone ?u volume will be adjusted to a low level based on the low ambient noise in the depository.
Summary of the Invention The present invention solves the above described problem by controlling the volume of a device's user alert sound based on an analysis of the device's environment.
In one embodiment, the device emits a sound and receives a resulting reflected sound.
A processor measures characteristics such as the amplitude and/or delay of the reflected sound to determine the type of environment in which the device is located. The volume of the user alert sound is then adjusted based on the type of environment indicted by the characteristics of the reflected sound. For example, if the characteristics indicate a closed environment such as a brief case, . the volume is adjusted to a high level, and if the characteristics indicate an open environment such as a desk top, the volume is adjusted to a low level.
Brief Description of the Drawings FIG. 1 is a block diagram of an embodiment of the present invention.
Detailed Description FIG. 1 is a block diagram of telephone 10, such as cellular or a wireless telephone.
Although the present embodiment of the invention is being illustrated with the use of a to telephone, this should not be construed to limit the present invention to telephones. The present invention may equally be applicable to any device that has an alert, such as a palm computer, or a watch.
Telephone 10 has a processor 25. Processor 25 can be any processor, such as a microcomputer, microprocessor 11, digital signal processor 12, or any combination of the is foregoing. Although, processor 25 is shown in FIG. 1 as having both microprocessor 11 and digital signal processor 12, processor 25 may include only one of the two devices, and the functionality that is ascribed to microprocessor 11 and digital signal processor 12 is performed by the one device. Telephone 25 also has digital to analog converter 13, speaker amplifier 14, speaker 15, microphone 18, microphone amplifier 17, analog to digital converter 16 and ringer 20 19. Telephone 10 may also include other elements (not shown) such as an antenna and a transcemer.
When telephone 10 receives a call, microprocessor 11 instructs digital signal processor 12 to analyze telephone 10's environment to determine, for example, if the telephone is in a depository 20 such as a briefcase or a pocket of a coat. Microprocessor 11 then generates a 25 control signal to activate ringer 19 to alert a user that there is an incoming call.
Microprocessor 11 instructs digital signal processor 12 to analyze telephone 10's environment in order to ensure that the sound generated by ringer 19 is audible to the user. Digital signal processor 12 performs this analysis when a new incoming call is detected, but before activating ringer 19.
Technical Field The present invention relates generally to the field of telephones and more particularly to telephones controlling the volume of an alert.
Background of the Invention Telephones have a ringing tone or other user alert sound that indicates when there is an 1o incoming call. In some telephones the volume of the ringing tone is adjustable so that it can be audible in different environments having different noise levels.
One type of telephone that has an adjustable volume of the ringing tone is shown in European patent application EP 0 507 482 A2. European patent application EP 0 discloses a telephone in which a circuit detects the level of an ambient noise signal and produces a detection signal responsive to the ambient noise signal. The detection signal is then used to produce a control signal that controls the ringing tone volume.
The above-described technique for controlling ringing tone volume suffers from a disadvantage. If the telephone is kept in a depository like a briefcase or in the pocket of a coat or jacket, the ringing tone will not be audible. This problem occurs because the ringing tone ?u volume will be adjusted to a low level based on the low ambient noise in the depository.
Summary of the Invention The present invention solves the above described problem by controlling the volume of a device's user alert sound based on an analysis of the device's environment.
In one embodiment, the device emits a sound and receives a resulting reflected sound.
A processor measures characteristics such as the amplitude and/or delay of the reflected sound to determine the type of environment in which the device is located. The volume of the user alert sound is then adjusted based on the type of environment indicted by the characteristics of the reflected sound. For example, if the characteristics indicate a closed environment such as a brief case, . the volume is adjusted to a high level, and if the characteristics indicate an open environment such as a desk top, the volume is adjusted to a low level.
Brief Description of the Drawings FIG. 1 is a block diagram of an embodiment of the present invention.
Detailed Description FIG. 1 is a block diagram of telephone 10, such as cellular or a wireless telephone.
Although the present embodiment of the invention is being illustrated with the use of a to telephone, this should not be construed to limit the present invention to telephones. The present invention may equally be applicable to any device that has an alert, such as a palm computer, or a watch.
Telephone 10 has a processor 25. Processor 25 can be any processor, such as a microcomputer, microprocessor 11, digital signal processor 12, or any combination of the is foregoing. Although, processor 25 is shown in FIG. 1 as having both microprocessor 11 and digital signal processor 12, processor 25 may include only one of the two devices, and the functionality that is ascribed to microprocessor 11 and digital signal processor 12 is performed by the one device. Telephone 25 also has digital to analog converter 13, speaker amplifier 14, speaker 15, microphone 18, microphone amplifier 17, analog to digital converter 16 and ringer 20 19. Telephone 10 may also include other elements (not shown) such as an antenna and a transcemer.
When telephone 10 receives a call, microprocessor 11 instructs digital signal processor 12 to analyze telephone 10's environment to determine, for example, if the telephone is in a depository 20 such as a briefcase or a pocket of a coat. Microprocessor 11 then generates a 25 control signal to activate ringer 19 to alert a user that there is an incoming call.
Microprocessor 11 instructs digital signal processor 12 to analyze telephone 10's environment in order to ensure that the sound generated by ringer 19 is audible to the user. Digital signal processor 12 performs this analysis when a new incoming call is detected, but before activating ringer 19.
To analyze the location of telephone 10, digital signal processor 12 generates digital measuring signals. The digital measuring signals are converted to analog signals by digital to analog converter 13, amplified by speaker amplifier 14 and converted to an acoustic signal 21 by speaker 15. To avoid disturbance to the user, the measuring signals may be chosen in such s a way that the generated acoustic signal 21 is in a frequency range that is not audible to the user. Acoustic response signal 22 is received by microphone 18. Microphone 18 converts acoustic response signal 22 to an analog signal that is provided to microphone amplifier 17.
The amplified signal is converted to a digital signal by analog to digital converter 16 and fed to digital signal processor 12. Digital signal processor 12 analyses the digital samples of the 1o response signal to determine the location of telephone 10.
When telephone 10 is kept in a depository such as a briefcase or pocket, the response signal is received by digital signal processor 12 having a short delay referenced to the time at which the measuring signal was generated. The delay is in proportion with an impulse response of the space surrounding telephone 10. Long delay times, such as any delay time 15 above about .92 milli-seconds (ms), characterize a wider space and short delay times, such~as any delay time below about .92 ms, characterize a closed space such as a briefcase or a pocket.
In addition, the attenuation of the response signal may be analyzed by digital signal processor 12, to further characterize the telephone's environment. Response signals having characteristics such as a short delay and strong attenuation, such as above about 50%, indicate 2o that the telephone is in a depository that is highly sound absorbent, such as a pocket of a coat or a jacket. Response signals having a short delay and weak attenuation, such as below about 50%, indicate a depository such as a briefcase that is absorbs sound to a lesser degree.
Response signals having a long delay indicate an open space.
The result of the analysis of digital signal processor 12 is used by microprocessor 11 to 25 adjust the volume of the ringing tone produced by ringer 19. For short delays and strong attenuation the volume is set at a high level, for short delays and weak attenuation the volume is set at a medium level, and for long delays the volume is set at a lower level.
Microprocessor 11 can also adjust the volume of ringer 19 using volumes that are correlated to delay times. For example, a table containing ringing tone volume values 3o corresponding to delay times can be stored in a memory that is accessible to microprocessor 11. Digital signal processor 12 passes the delay time to microprocessor 11, which uses the delay time to look up the corresponding ringing tone value from the table.
The analyzing and adjusting process as described above can be repeated after each ringing tone or after a given number of ringing tones to produce a comfortable ringing tone volume. This avoids overly loud ringing when a high volume value is initially selected by microprocessor 1 l, for example, when the telephone was originally in a depository and is then taken out of the depository.
If telephone 20 has a vibrator, the vibrator may be activated by microprocessor 11 at the time of an incoming call when the characteristics of response signal 22 indicate that the 1o telephone is in a pocket. For example, when the time delay is below a time delay threshold of about .46ms and the attenuation exceeds an attenuation threshold of about 50%
the vibrator would be activated. Additionally, a temperature sensor can be coupled to microprocessor 11.
If the temperature sensor measures a temperature close to the temperature of the human body, the vibrator may be activated. ~ . .
~ 5 It should be noted that instead of a ringer 19, speaker 15 may be used to produce the ringing tone. Additionally, although the alert has been illustrated as a ringing tone, the alert can be any audio signal, such as a prerecorded voice.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art having reference to the specification and drawings zu that various modifications may be made and various alternatives are possible therein without departing from the spirit and scope of the invention.
The amplified signal is converted to a digital signal by analog to digital converter 16 and fed to digital signal processor 12. Digital signal processor 12 analyses the digital samples of the 1o response signal to determine the location of telephone 10.
When telephone 10 is kept in a depository such as a briefcase or pocket, the response signal is received by digital signal processor 12 having a short delay referenced to the time at which the measuring signal was generated. The delay is in proportion with an impulse response of the space surrounding telephone 10. Long delay times, such as any delay time 15 above about .92 milli-seconds (ms), characterize a wider space and short delay times, such~as any delay time below about .92 ms, characterize a closed space such as a briefcase or a pocket.
In addition, the attenuation of the response signal may be analyzed by digital signal processor 12, to further characterize the telephone's environment. Response signals having characteristics such as a short delay and strong attenuation, such as above about 50%, indicate 2o that the telephone is in a depository that is highly sound absorbent, such as a pocket of a coat or a jacket. Response signals having a short delay and weak attenuation, such as below about 50%, indicate a depository such as a briefcase that is absorbs sound to a lesser degree.
Response signals having a long delay indicate an open space.
The result of the analysis of digital signal processor 12 is used by microprocessor 11 to 25 adjust the volume of the ringing tone produced by ringer 19. For short delays and strong attenuation the volume is set at a high level, for short delays and weak attenuation the volume is set at a medium level, and for long delays the volume is set at a lower level.
Microprocessor 11 can also adjust the volume of ringer 19 using volumes that are correlated to delay times. For example, a table containing ringing tone volume values 3o corresponding to delay times can be stored in a memory that is accessible to microprocessor 11. Digital signal processor 12 passes the delay time to microprocessor 11, which uses the delay time to look up the corresponding ringing tone value from the table.
The analyzing and adjusting process as described above can be repeated after each ringing tone or after a given number of ringing tones to produce a comfortable ringing tone volume. This avoids overly loud ringing when a high volume value is initially selected by microprocessor 1 l, for example, when the telephone was originally in a depository and is then taken out of the depository.
If telephone 20 has a vibrator, the vibrator may be activated by microprocessor 11 at the time of an incoming call when the characteristics of response signal 22 indicate that the 1o telephone is in a pocket. For example, when the time delay is below a time delay threshold of about .46ms and the attenuation exceeds an attenuation threshold of about 50%
the vibrator would be activated. Additionally, a temperature sensor can be coupled to microprocessor 11.
If the temperature sensor measures a temperature close to the temperature of the human body, the vibrator may be activated. ~ . .
~ 5 It should be noted that instead of a ringer 19, speaker 15 may be used to produce the ringing tone. Additionally, although the alert has been illustrated as a ringing tone, the alert can be any audio signal, such as a prerecorded voice.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art having reference to the specification and drawings zu that various modifications may be made and various alternatives are possible therein without departing from the spirit and scope of the invention.
Claims (22)
1. A device (20) CHARACTERIZED BY:
an alert generator (19) that generates an alert having a volume; and a processor (25) coupled to the alert generator (19), wherein the processor (25) performs an analysis of a space surrounding of the device (20) and controls the volume of the alert responsive to the analysis.
an alert generator (19) that generates an alert having a volume; and a processor (25) coupled to the alert generator (19), wherein the processor (25) performs an analysis of a space surrounding of the device (20) and controls the volume of the alert responsive to the analysis.
2. The device (20) according to claim 1, CHARACTERIZED IN THAT the processor (25):
produces a measuring signal;
receives a response signal resulting from the measuring signal interacting with the space;
analyzes a delay time between the measuring signal and the response signal;
and controls the volume of the alert responsive to the delay time.
produces a measuring signal;
receives a response signal resulting from the measuring signal interacting with the space;
analyzes a delay time between the measuring signal and the response signal;
and controls the volume of the alert responsive to the delay time.
3. The device according to claim 2, CHARACTERIZED IN THAT the processor (25) comprises a memory for storing a table of alert volume values corresponding to delay times.
4. The device according to claim 2, CHARACTERIZED IN THAT the processor (25):
analyzes an attenuation of the response signal relative to the measuring signal; and controls the volume of the alert responsive to the attenuation.
analyzes an attenuation of the response signal relative to the measuring signal; and controls the volume of the alert responsive to the attenuation.
5. The device according to claim 4, further CHARACTERIZED BY a vibrator, wherein the vibrator is activated responsive to the time delay of the response signal being below a time delay threshold and the attenuation of the response signal exceeding an attenuation threshold.
6. The device according to claim 1, CHARACTERIZED IN THAT the processor (25) performs the analysis and controls the volume at the beginning of each incoming call before the alert generator (19) generates the alert.
7. The device according to claim 1, CHARACTERIZED IN THAT the processor (25) performs the analysis and controls the volume before the alert generator (19) generates each alert.
8. The device according to claim 1, CHARACTERIZED IN THAT:
the alert generator (19) generates one or more groups of alerts each having a plurality of alerts; and the processor (25) performs the analysis and controls the volume before the alert generator generates each group of alert.
the alert generator (19) generates one or more groups of alerts each having a plurality of alerts; and the processor (25) performs the analysis and controls the volume before the alert generator generates each group of alert.
9. The device according to claim 1, CHARACTERIZED IN THAT the alert generator (25) is a ringer.
10. The device according to claim 1, CHARACTERIZED IN THAT the processor (25) is a microprocessor (11).
11. The device according to claim 1, CHARACTERIZED IN THAT the processor (25) is a digital signal processor (12).
12. A method for generating and controlling an alert on a device (20), the method CHARACTERIZED BY the steps of:
analyzing a space surrounding the device (20);
adjusting the volume of the alert responsive to the analysis the space; and generating the alert.
analyzing a space surrounding the device (20);
adjusting the volume of the alert responsive to the analysis the space; and generating the alert.
13. The method according to claim 12, CHARACTERIZED IN THAT the step of analyzing the space comprises the steps of:
generating a measuring signal;
receiving a response signal resulting from the measuring signal interacting with the space; and analyzing the response signal.
generating a measuring signal;
receiving a response signal resulting from the measuring signal interacting with the space; and analyzing the response signal.
14. The method according to claim 13, CHARACTERIZED IN THAT the step of analyzing the space comprises analyzing a delay time between the measuring signal and the response signal.
15. The method according to claim 14, CHARACTERIZED IN THAT the step of adjusting the volume of the alert responsive to the analysis the space comprises the steps of:
increasing the volume of the alert responsive to a short delay time; and decreasing the volume of the alert responsive to a long delay time.
increasing the volume of the alert responsive to a short delay time; and decreasing the volume of the alert responsive to a long delay time.
16. The method according to claim 14, CHARACTERIZED IN THAT:
the step of analyzing the space comprises analyzing an attenuation of the response signal relative to the measuring signal and the step of adjusting the volume of the alert responsive to the analysis the space comprises the steps of:
setting the volume of the alert to a high level responsive to a short delay time and strong attenuation;
setting the volume of the alert to a medium level responsive to a short delay time and weak attenuation; and setting the volume of the alert to a low level responsive to a long delay time.
the step of analyzing the space comprises analyzing an attenuation of the response signal relative to the measuring signal and the step of adjusting the volume of the alert responsive to the analysis the space comprises the steps of:
setting the volume of the alert to a high level responsive to a short delay time and strong attenuation;
setting the volume of the alert to a medium level responsive to a short delay time and weak attenuation; and setting the volume of the alert to a low level responsive to a long delay time.
17. The method according to claim 16, CHARACTERIZED IN THAT
the device (20) further comprises a vibrator; and the method further comprises the step of activating the vibrator responsive to the time delay of the response signal being below a time delay threshold and the attenuation of the response signal exceeding an attenuation threshold.
the device (20) further comprises a vibrator; and the method further comprises the step of activating the vibrator responsive to the time delay of the response signal being below a time delay threshold and the attenuation of the response signal exceeding an attenuation threshold.
18. The method according to claim 14, CHARACTERIZED IN THAT the step of adjusting the volume of the alert responsive to the analysis the space comprises the steps of:
obtaining the alert volume from a table of alert volume values corresponding to delay times; and adjusting the volume of the alert to the alert volume value obtained from the table.
obtaining the alert volume from a table of alert volume values corresponding to delay times; and adjusting the volume of the alert to the alert volume value obtained from the table.
19. The method according to claim 13, CHARACTERIZED IN THAT the step of analyzing the space comprises analyzing an attenuation of the response signal relative to the measuring signal.
20. The method according to claim 12, CHARACTERIZED IN THAT the step of analyzing the space is performed for each incoming call prior to generating the alert.
21. The method according to claim 12, CHARACTERIZED IN THAT the step of analyzing the space is performed prior to generating each alert.
22. The method according to claim 12, CHARACTERIZED IN THAT:
the step of generating the alert includes generating one or more groups of alerts each having a plurality of alerts; and the step of analyzing the space is performed prior to generating each group of alert.
the step of generating the alert includes generating one or more groups of alerts each having a plurality of alerts; and the step of analyzing the space is performed prior to generating each group of alert.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/294,166 | 1999-04-19 | ||
| US09/294,166 US6363265B1 (en) | 1999-04-19 | 1999-04-19 | Volume control for an alert generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2303719A1 true CA2303719A1 (en) | 2000-10-19 |
Family
ID=23132192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002303719A Abandoned CA2303719A1 (en) | 1999-04-19 | 2000-04-05 | Volume control for an alert generator |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6363265B1 (en) |
| EP (1) | EP1047258A3 (en) |
| JP (1) | JP2000324207A (en) |
| KR (1) | KR20010014756A (en) |
| CN (1) | CN1271229A (en) |
| AU (1) | AU2770500A (en) |
| BR (1) | BR0001573A (en) |
| CA (1) | CA2303719A1 (en) |
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-
1999
- 1999-04-19 US US09/294,166 patent/US6363265B1/en not_active Expired - Lifetime
-
2000
- 2000-04-05 CA CA002303719A patent/CA2303719A1/en not_active Abandoned
- 2000-04-10 BR BR0001573-3A patent/BR0001573A/en not_active Application Discontinuation
- 2000-04-11 EP EP00303045A patent/EP1047258A3/en not_active Withdrawn
- 2000-04-12 AU AU27705/00A patent/AU2770500A/en not_active Abandoned
- 2000-04-18 KR KR1020000020302A patent/KR20010014756A/en not_active Application Discontinuation
- 2000-04-18 CN CN00106753A patent/CN1271229A/en active Pending
- 2000-04-18 JP JP2000117075A patent/JP2000324207A/en active Pending
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|---|---|
| CN1271229A (en) | 2000-10-25 |
| BR0001573A (en) | 2000-12-19 |
| KR20010014756A (en) | 2001-02-26 |
| US6363265B1 (en) | 2002-03-26 |
| EP1047258A3 (en) | 2003-09-10 |
| JP2000324207A (en) | 2000-11-24 |
| EP1047258A2 (en) | 2000-10-25 |
| AU2770500A (en) | 2000-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |