INTELLIGIBILITY BOOST

• US 20100080379A1
• Filed: 09/30/2008
• Published: 04/01/2010
• Est. Priority Date: 09/30/2008
• Status: Abandoned Application

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Tamchina, Phillip George, Seguin, Chad G., Chen, Shaohai
• Application Number:
  US12/242,260
• Publication Number:
  US 20100080379A1
• Time in Patent Office: Days
• US Class Current: 379/390.10
• CPC Class Codes: H04M 1/6016 in the receiver circuit
• CPC Class Codes: H04M 1/605 involving control of the receiver volume to provide a dual operational mode at close or far distance from the user
• CPC Class Codes: H04M 1/6058 involving the use of a headset accessory device connected to the portable telephone
• CPC Class Codes: H04M 1/6066 including a wireless connection

Abstract

A user of a communications device is given the ability to conveniently control the quality of the sound he is hearing during a call. An acoustic transducer interface circuit of the device has volume settings that are set by the user actuating a volume adjustment button or switch. In addition, the device has one or more intelligibility boost settings that are also selected by actuating the volume adjust button. Once the device has been signaled into the highest volume setting in response to actuation of the button in a given direction, and the next actuation of the button is also in the given direction, a downlink voice signal processor of the device responds to the next actuation by changing its audio frequency response to boost intelligibility of the far end user'"'"'s speech being heard by the near end user. Other embodiments are also described and claimed.

Claims

1. An apparatus comprising:

a communications device housing having integrated therein

an acoustic transducer interface circuit,

a downlink voice signal processor having an input to be coupled to a communications network and an output coupled to the acoustic transducer interface circuit,

the interface circuit to have a plurality of volume settings at which a speaker is to be operated during a call through the network, including a lowest volume setting and a highest volume setting,

a decoder to sense actuation of a mechanical to electrical transducer, during the call, in one direction as signaling a lower volume setting and in an opposite direction as signaling a higher volume setting,

wherein once the highest volume setting has been signaled in response to actuation of the transducer in said opposite direction, and the decoder senses next actuation of the transducer during the call is also in said opposite direction, the decoder is to signal the downlink processor to respond to said next actuation by changing its frequency response.

2. The apparatus of claim 1 wherein the downlink processor is to change its frequency response so as to increase gain over a middle frequency band relative to lower and upper frequency bands.

3. The apparatus of claim 2 wherein the middle frequency band is within a range of 1.5 kHz to 2.5 kHz.

4. The apparatus of claim 2 wherein the middle frequency band is within a range of 2 kHz to 4 kHz.

5. The apparatus of claim 2 wherein said increase of gain over the middle frequency band, relative to the lower and upper frequency bands, results in boosting intelligibility of speech that is delivered from the speaker interface circuit during the call.

6. The apparatus of claim 1 wherein the downlink processor is to respond to said next actuation by changing its frequency response from a balanced or flat shape to one that has increased gain over a middle frequency band relative to lower and upper frequency bands.

7. The apparatus of claim 6 wherein the downlink processor further responds to said next actuation by increasing roll off in the lower frequency band.

8. The apparatus of claim 6 wherein the downlink processor further responds to said next actuation by decreasing gain over lower and/or upper frequency bands, so that overall energy or power output by the speaker interface circuit in an intelligibility boost setting is no greater than in a maximum volume setting.

9. The apparatus of claim 1 further comprising a receiver integrated in the housing and to which the interface circuit is connected during the call, while the apparatus is in a handset mode, wherein the receiver is said speaker.

10. The apparatus of claim 1 further comprising a loudspeaker integrated in the housing and to which the interface circuit is connected during the call, while the apparatus is in a speakerphone mode, wherein the loudspeaker is said speaker.

11. The apparatus of claim 1 further comprising a wireless headset to which the interface circuit is connected during the call, wherein the speaker is integrated in the wireless headset.

12. The apparatus of claim 1 further comprising a wired headset to which the interface circuit is connected during the call, wherein the speaker is integrated in the wired headset.

13. The apparatus of claim 1 further comprising the speaker being integrated in the communications device housing.

14. The apparatus of claim 1 wherein the downlink processor is to respond to a further actuation of the transducer in said one direction, which signals a resumption of volume setting between the lowest volume setting and the highest volume setting, by changing its frequency response to a balanced or flat shape.

15. The apparatus of claim 2 wherein the downlink processor is to respond to a further actuation of the transducer in said opposite direction, by changing its frequency response so as to further increase gain over the middle frequency band relative to the lower and upper frequency bands.

16. The apparatus of claim 1 further comprising a wireless headset interface circuit, wherein the decoder is to sense actuation of the mechanical to electrical transducer through the wireless headset interface circuit.

17. The apparatus of claim 1 further comprising a wired headset interface circuit, wherein the decoder is to sense actuation of the mechanical to electrical transducer through the wired headset interface circuit.

18. The apparatus of claim 1 further comprising the speaker the mechanical to electrical transducer, being integrated in said communications device housing.

19. An apparatus comprising:

a mobile telephony device housing having integrated therein

a touch sensitive screen,

RF communications circuitry coupled to an antenna,

a downlink voice signal processor having an input to be coupled to a wireless communications network through the RF communications circuitry and the antenna, and an output to be coupled to a speaker that is to be operated at a plurality of volume settings during a wireless call through the network,

a virtual button that is to be displayed on the touch sensitive screen and that is to be actuated in one direction during the call to signal a lower volume setting and in an opposite direction to signal a higher volume setting,

wherein once signaled into the highest volume setting in response to actuation of the button in said opposite direction, and next actuation of the button during the call is also in said opposite direction, the downlink processor is to respond to said next actuation by changing its frequency response.

20. The apparatus of claim 19 wherein the downlink processor is to change its frequency response so as to boost intelligibility of speech that is heard from the speaker, without increasing overall energy or power output, from the speaker, relative to the highest volume setting.

21. The apparatus of claim 19 wherein the downlink processor is to change its frequency response, in response to said next actuation of the button, from a balanced or flat shape at all said plurality of volume settings to one that exhibits increased gain over a middle frequency band relative to lower and upper frequency bands.

22. The apparatus of claim 21 wherein the middle frequency band is within a range of 1.5 kHz to 2.5 kHz.

23. The apparatus of claim 21 wherein the middle frequency band is within a range of 2 kHz to 4 kHz.

24. The apparatus of claim 19 wherein the downlink processor is to respond to a further actuation of the button in said one direction, which signals a resumption of volume setting between the lowest volume setting and the highest volume setting, by changing its frequency response to a balanced or flat shape.

25. The apparatus of claim 21 wherein the downlink processor is to respond to a further actuation of the button in said opposite direction, by changing its frequency response so as to further increase gain over the middle frequency band relative to the lower and upper frequency bands.

26. The apparatus of claim 21 wherein the virtual button is to be displayed in speakerphone mode and not handset mode, and the speaker is a loudspeaker integrated in the device housing. 27. A communications device comprising:

means for processing a downlink voice signal; and

means for adjusting a volume setting for the downlink voice signal to be heard though a speaker, between a lowest volume setting and a highest volume setting, and

wherein actuation of the volume setting adjustment means, from the highest volume setting to an intelligibility boost setting, is to cause the downlink voice signal processing means to change its frequency response that is applied to the downlink voice signal.