Smart speakerphone

Patent metadata

Field	Value
Publication number	US-2016012827-A1
Application number	US-201414328574-A
Country	US
Kind code	A1
Filing date	Jul 10, 2014
Priority date	Jul 10, 2014
Publication date	Jan 14, 2016
Grant date	—

Abstract

Embodiments are directed towards a speaker/microphone system. Each microphone in a microphone array generate an audio signal based on sound in a physical space. The microphone array may be arranged to logically define the physical space into a plurality of regions that have a status of active or inactive. An output signal may be generated from the audio signals, such that directional noise reduction is performed on audio signals associated with inactive regions and speech enhancement is performed on audio signals associated with active regions. A region's current status may be modified to its opposite status based on a request provided by a user. The request may be triggered by an activator or a spoken word/phrase provided by the user. An indication may be provided to the user regarding each current status for each region. The indication may also represent a quality of audio signals associated with active regions.

First claim

What is claimed is:

1 . A method for providing directional speech enhancement and noise reduction, comprising:
employing each of a plurality of microphones to generate at least one audio signal based on sound sensed in a physical space, wherein the plurality of microphones are arranged to logically define the physical space into a plurality of listening regions, and wherein each status for each listening region is logically defined as active or inactive; generating an output signal from the audio signals, wherein directional noise reduction is performed on each audio signal associated with each inactive listening region and speech enhancement is performed on each audio signal associated with each active listening region; modifying a current status of at least one of the plurality of listening regions based on a request to change the current status to its opposite status; and providing an indication to a user regarding each current status for each of the plurality of listening regions.

2 . The method of claim 1 , further comprising providing another indication to the user regarding a quality of the audio signals associated with each active listening region.

3 . The method of claim 1 , further comprising monitoring at least the audio signals associated with each inactive listening region for a spoken word that is operative to trigger the request to change the current status.

4 . The method of claim 1 , wherein the request is triggered by an action from the user on at least one of a plurality of activators, wherein each activator corresponds to at least one different listening region.

5 . The method of claim 1 , wherein modifying the current status further comprises triggering modification of a current status of at least one other listening region to its opposite status.

6 . The method of claim 1 , further comprising providing a user interface to the user, which includes an activator and an indicator for each of the plurality of listening regions, wherein each activator enables the user to activate or inactivate the current status for at least a corresponding listening region and each indicator represents an audio signal quality associated with each active listening region.

7 . The method of claim 1 , further comprising monitoring at least the audio signals associated with each inactive listening region for a spoken word that triggers the request, wherein a first monitored spoken word triggers activation of an inactive listening region and simultaneously triggers inactivation of an active listening region, and wherein a second monitored spoken word triggers activation of the inactive listening region and the current status of each other listening region remains unchanged.

8 . An apparatus for providing directional speech enhancement and noise reduction, comprising:
a transceiver that is operative to communicate and enable phone call support with a remote computer; a speaker that is operative to produce audio from the communication with the remote computer; a microphone array that is operative to generate at least one audio signal based on sound sensed in a physical space, wherein the microphone array is arranged to logically define the physical space into a plurality of listening regions, and wherein each status for each listening region is logically defined as active or inactive; a processor that is operative to execute instructions that enable actions, including:
generating an output signal from the audio signals, wherein directional noise reduction is performed on each audio signal associated with each inactive listening region and speech enhancement is performed on each audio signal associated with each active listening region; and
modifying a current status of at least one of the plurality of listening regions based on a request to change the current status to its opposite status; and
at least one indicator that is operative to provide an indication to a user regarding each current status for each of the plurality of listening regions.

9 . The apparatus of claim 8 , further comprising at least one other indicator that is operative to provide another indication to the user regarding a quality of the audio signals associated with each active listening region.

10 . The apparatus of claim 8 , wherein the processor is operative to execute instructions that enable further actions, including monitoring at least the audio signals associated with each inactive listening region for a spoken word that is operative to trigger the request to change the current status.

11 . The apparatus of claim 8 , further comprising a plurality of activators, wherein each activator corresponds to at least one different listening region, and wherein the request is triggered by an action from the user on at least one of the plurality of activators.

12 . The apparatus of claim 8 , wherein modifying the current status further comprises triggering modification of a current status of at least one other listening region to its opposite status.

13 . The apparatus of claim 8 , further comprising a display screen that is operative to provide a user interface to the user, which includes an activator and an indicator for each of the plurality of listening regions, wherein each activator enables the user to activate or inactivate the current status for at least a corresponding listening region and each indicator represents an audio signal quality associated with each active listening region.

14 . The apparatus of claim 8 , wherein the processor is operative to execute instructions that enable further actions, including monitoring at least the audio signals associated with each inactive listening region for a spoken word that triggers the request, wherein a first monitored spoken word triggers activation of an inactive listening region and simultaneously triggers inactivation of an active listening region, and wherein a second monitored spoken word triggers activation of the inactive listening region and the current status of each other listening region remains unchanged.

15 . A hardware chip that is operative to provide directional speech enhancement and noise reduction for a speaker and microphone system, comprising:
an input logic that is operative to employ each of a plurality of microphones to generate at least one audio signal based on sound sensed in a physical space, wherein the plurality of microphones are arranged to logically define the physical space into a plurality of listening regions, and wherein each status for each listening region is logically defined as active or inactive; a speech enhancer logic that is operative to generate an output signal from the audio signals, wherein directional noise reduction is performed on each audio signal associated with each inactive listening region and speech enhancement is performed on each audio signal associated with each active listening region; a trigger monitor logic that is operative to modify a current status of at least one of the plurality of listening regions based on a request to change the current status to its opposite status; and a display indicator logic that is operative to provide an indication to a user regarding each current status for each of the plurality of listening regions.

16 . The hardware chip of claim 15 , wherein the display indicator logic is further operative to provide another indication to the user regarding a quality of the audio signals associated with each active listening region.

17 . The hardware chip of claim 15 , wherein the trigger monitor logic is further operative to monitor at least

Assignees

• Cambridge Silicon Radio Ltd

Inventors

• Alves Rogerio Guedes
• Yu Tao

Classifications

• G10L21/10

  Transforming into visible information · CPC title

• G10L21/0208 Primary

  Noise filtering · CPC title

• H04R2410/01

  Noise reduction using microphones having different directional characteristics · CPC title

• H04R1/406

  microphones · CPC title

• G10K11/178

  by electro-acoustically regenerating the original acoustic waves in anti-phase · CPC title