Invention Grant
- Patent Title: Sound reproducing apparatus and method of identifying positions of speakers
- Patent Title (中): 声音再现装置及识别扬声器位置的方法
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Application No.: US10589783Application Date: 2005-02-16
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Publication No.: US07933418B2Publication Date: 2011-04-26
- Inventor: Morito Morishima
- Applicant: Morito Morishima
- Applicant Address: JP
- Assignee: Yamaha Corporation
- Current Assignee: Yamaha Corporation
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2004-041237 20040218
- International Application: PCT/JP2005/002833 WO 20050216
- International Announcement: WO2005/079114 WO 20050825
- Main IPC: H04R29/00
- IPC: H04R29/00

Abstract:
A position of a speaker is detected two-dimensionally or three-dimensionally, and a sound field is corrected. A sound reproducing apparatus includes a measuring signal generating portion for generating a first measuring signal, a transmission portion for transmitting a second measuring signal as soon as the first measuring signal is generated, sensors disposed in a listening position and for measuring a time difference between a time instant when the second measuring signal was received and a time instant when a measuring sound wave radiated from a to-be-detected speaker in accordance with the first measuring signal was received, and a position calculating portion for calculating a distance, as to each of n sensors, between each of the n sensors and the to-be-detected speaker based on the measured time difference, and calculating the position of the to-be-detected speaker based on distances among the n sensors and the calculated distance.
Public/Granted literature
- US20070133813A1 Sound reproducing apparatus and method of identifying positions of speakers Public/Granted day:2007-06-14
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