Adaptive system for managing a plurality of microphones and speakers

• US 9,124,965 B2
• Filed: 11/07/2013
• Issued: 09/01/2015
• Est. Priority Date: 11/08/2012
• Status: Active Grant

• Current Assignee: DSP Group Incorporated (Synaptics Incorporated)
• Original Assignee: DSP Group Ltd. (Synaptics Incorporated)
• Inventors: Heiman, Arie, Yehuday, Uri, Roeimi, Roei
• Primary Examiner(s): Lao, Lun-See
• Application Number:
  US14/074,365
• Publication Number:
  US 20140126729A1
• Time in Patent Office: 663 Days
• Field of Search: 381/56, 381/123, 381/17, 381/74, 381 711- 716, 381/328, 381/110, 379/406.08, 370/276, 455/550.1
• US Class Current: 1/1
• CPC Class Codes: H04R 1/00 Details of transducers, loudspeakers or microphones
• CPC Class Codes: H04R 2400/01 Transducers used as a loudspeaker to generate sound aswell as a microphone to detect sound
• CPC Class Codes: H04R 2499/11 Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
• CPC Class Codes: H04R 3/00 Circuits for transducers , loudspeakers or microphones

Abstract

Methods and systems are provided for adaptively managing a plurality of microphones and speakers in an electronic device. A mode of operation of the electronic device may be determined, and operation of at least one speaker may be managed, based on the determined mode of operation. The managing may comprise adaptively switching or modifying functions of the at least one speaker. For example, the at least one speaker may be configured to act as microphone or as vibration detector. Input obtained using the at least one speaker may be utilized in optimizing audio related functions, such as noise reduction and/or acoustic echo canceling.

Claims

1. An adaptive system for managing a plurality of speakers, comprising:

an electronic device comprising one or more circuits, a first speaker and a second speaker that belong to the plurality of speakers, the one or more circuits being operable to;

determine, based upon a mode of operation of the electronic device, whether there is a certain speaker out of the first and second speakers that is unused during the mode of operation of the electronic device, and whether there is a need to configure the certain speaker to provide input; and

configure the certain speaker to provide input if it is determined that there is a need to configure the certain speaker to provide input.

2. The system of claim 1, wherein the one or more circuits configure the certain speaker to provide the input when operating as a microphone or as a vibration detector.

3. The system of claim 1, wherein the one or more circuits configure the certain speaker to simultaneously continue functioning as a speaker while also being used as a microphone or as a vibration detector.

4. The system of claim 1, wherein the one or more circuits are operable to utilize input from the certain speaker configured for use as a microphone or as vibration detector to support audio enhancement functions in the electronic device.

5. The system of claim 4, wherein the audio enhancement functions comprise at least one out of noise reduction acoustic echo canceling.

6. The system of claim 1, wherein the certain speaker is configured as a vibration detector to indicate if a user of the electronic device is talking.

7. The system of claim 1, wherein the certain speaker is configured as a vibration detector to detect vibration in a casing of the electronic device.

8. The system of claim 1, wherein the electronic device is arranged to operate in a first mode of operation and in a second mode of operation;

wherein the one or more circuits are operable to determine, when the electronic device is set to operate at the first mode of operation in which the first speaker is unused, whether there is a need to configure the first speaker to provide input; and

wherein the one or more circuits are operable to determine, when the electronic device is set to operate at the second mode of operation in which the second speaker is unused, whether there is a need to configure the second speaker to provide input.

18. The non-transitory computer readable medium according to claim 1 wherein the electronic device is arranged to operate in a first mode of operation and in a second mode of operation;

wherein the non-transitory computer readable medium stores instructions for determining when the electronic device is set to operate at the first mode of operation in which the first speaker is unused, whether there is a need to configure the first speaker to provide input; and

determining, when the electronic device is set to operate at the second mode of operation in which the second speaker is unused, whether there is a need to configure the second speaker to provide input.

9. A method for adaptively managing a plurality of speakers, the method comprising:

in an electronic device comprising a first speaker and a second speaker that belong to the plurality of speakers;

determining, based upon a mode of operation of the electronic device, whether there is a certain speaker out of the first and second speakers that is unused during the mode of operation of the electronic device, and whether there is a need to configure the certain speaker to provide input; and

configuring the certain speaker to provide input if it is determined that there is a need to configure the certain speaker to provide input.

10. The method of claim 9, comprises configuring the certain speaker for use as a microphone or as a vibration detector.

11. The method of claim 9, comprising configuring the certain speaker to simultaneously continue functioning as a speaker while being used as a microphone or as a vibration detector.

12. The method of claim 10, comprising utilizing input from the certain speaker configured for used as microphone or as vibration detector to support audio enhancement functions in the electronic device.

13. The method of claim 12, wherein the audio enhancement functions comprise at least one out of noise reduction acoustic echo canceling.

14. The method of claim 9, comprising configuring the certain speaker as vibration detector to indicate if a user of the electronic device is talking.

15. The method of claim 9, comprising configuring the certain speaker as a vibration detector to detect vibration in a casing of the electronic device.

16. The method of claim 9, wherein the electronic device is arranged to operate in a first mode of operation and in a second mode of operation;

wherein the method comprises determining, when the electronic device is set to operate at the first mode of operation in which the first speaker is unused, whether there is a need to configure the first speaker to provide input; and

determining, when the electronic device is set to operate at the second mode of operation in which the second speaker is unused, whether there is a need to configure the second speaker to provide input.

17. A non-transitory computer readable medium that stores a computer program that one executed by the computer causes the computer to perform the steps of:

determining, based upon a mode of operation of an electronic device, whether there is a certain speaker out of the first and second speakers that is unused during the mode of operation of the electronic device, and whether there is a need to configure the certain speaker to provide input; and

configuring the certain speaker to provide input if it is determined that there is a need to configure the certain speaker to provide input.