Invention Grant
US07933418B2 Sound reproducing apparatus and method of identifying positions of speakers 失效
声音再现装置及识别扬声器位置的方法

  • 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
  • Application No.: US10589783
    Application Date: 2005-02-16
  • Publication No.: US07933418B2
    Publication 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
Sound reproducing apparatus and method of identifying positions of speakers
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.
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