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Patent Searching and Data


Title:
SPEAKER DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/088746
Kind Code:
A1
Abstract:
Provided is a speaker device in which the direction in which a housing faces changes according to the installation state, wherein the direction in which the device faces can be detected on the basis of optical signals received by a plurality of light-receiving elements. The speaker device can be installed in a state of being placed on a rack with a reception unit (27A) facing a listening position, and in a state of being hung on a wall with a reception unit (27B) facing the listening position. Voltage conversion units (63, 73) convert photoelectric current I output by light reception elements (61, 71) in accordance with the amount of infrared light received from an infrared remote control (230) to voltage signals V, and the voltage conversion units output the same to a controller (41). The controller (41) compares the magnitude of the voltage signals V input from the voltage conversion units (63, 73) and thereby detects the state (facing direction) of the speaker device (10).

Inventors:
SHIMAZU TAKAMORI (JP)
Application Number:
PCT/JP2015/083722
Publication Date:
June 09, 2016
Filing Date:
December 01, 2015
Export Citation:
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Assignee:
YAMAHA CORP (JP)
International Classes:
H04R3/00; H04N5/00; H04N5/225; H04N5/60; H04R5/02; H04S5/02
Foreign References:
JP2014514856A2014-06-19
JPH08182098A1996-07-12
Other References:
See also references of EP 3214853A4
Attorney, Agent or Firm:
HARUKA PATENT & TRADEMARK ATTORNEYS (JP)
Patent business corporation far international patent firm (JP)
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