Invention Grant
- Patent Title: Robust crosstalk cancellation using a speaker array
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Application No.: US14773280Application Date: 2014-03-13
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Publication No.: US09756446B2Publication Date: 2017-09-05
- Inventor: Martin E. Johnson , Ronald N. Isaac
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- International Application: PCT/US2014/026503 WO 20140313
- International Announcement: WO2014/151817 WO 20140925
- Main IPC: H04R5/02
- IPC: H04R5/02 ; H04S7/00 ; H04R5/04 ; H04S3/02

Abstract:
An audio receiver that performs crosstalk cancellation using a speaker array is described. The audio receiver detects the location of a listener in a room and processes a piece of sound program content to be output through the speaker array using one or more beam pattern matrices. The beam pattern matrices are generated according to one or more constraints. The constraints may include increasing a right channel and decreasing a left channel at the right ear of the listener, increasing a left channel and decreasing a right channel at the left ear of the listener, and decreasing sound in all other areas of the room. These constraints cause the audio receiver to beam sound primarily towards the listener and not in other areas of the room such that crosstalk cancellation is achieved with minimal effects due to changes to the frequency response of the room. Other embodiments are also described.
Public/Granted literature
- US20160021480A1 ROBUST CROSSTALK CANCELLATION USING A SPEAKER ARRAY Public/Granted day:2016-01-21
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