- 专利标题: Identifying audio characteristics of a room using a spread code
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申请号: US16133817申请日: 2018-09-18
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公开(公告)号: US10992336B2公开(公告)日: 2021-04-27
- 发明人: Robert Caston Curtis , Mark Ely , Brian Thoft Moth Møller
- 申请人: Roku, Inc.
- 申请人地址: US CA Los Gatos
- 专利权人: Roku, Inc.
- 当前专利权人: Roku, Inc.
- 当前专利权人地址: US CA Los Gatos
- 代理机构: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- 主分类号: H04B1/7073
- IPC分类号: H04B1/7073 ; H04R3/12 ; H04L29/06 ; H04J13/00
摘要:
Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for identifying audio characteristics of a room using a spread code. In some embodiments, a first electronic device receives a spread spectrum signal from a second electronic device over an audio data channel. The first electronic device determines a time of receipt of the spread spectrum signal based on despreading. The first electronic device calculates an airtime delay based on the time of receipt and a time of transmission of the spread spectrum signal. The first electronic device determines a direction of the second electronic device based on the spread spectrum signal and beam forming techniques. The first electronic device adjusts playback of audiovisual content at the second electronic device and a third electronic device for a location based on the airtime delay and the direction.
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