Acoustic apparatus
AssigneePanasonic Corporation
InventorsRiichiroh KOIKE, Takeshi HATAKEYAMA
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Abstract
When a listener 10 changes the reclining angle of a backrest part 101a of a seat 101 and a head 10a of the listener 10 is thereby caused to be present outside an audible area 120a of a directional loudspeaker 120 or when the reclining angle of a front seat 100 is changed and the head 10a of the listener 10 is thereby caused to be present outside the audible area 120a of the directional loudspeaker 120, a distance L2 to an obstacle exceeds 1 m as an upper limit of a standard listening range and it is determined that the head 10a of the listener 10 is present beyond the standard listening range, and the audio output of the directional loudspeaker 120 is stopped.
Claims17
An acoustic apparatus for a listener sitting in a seat, comprising:
- a loudspeaker arranged so as to face toward the listener;
- a detection part for detecting relative positions of the listener and the loudspeaker;
- and
- a controller for controlling the magnitude of the audio output from the loudspeaker, wherein
- the controller stops or reduces the audio output based on the detected relative positions.
An acoustic apparatus for a listener sitting in a seat, comprising:
- a loudspeaker arranged so as to face toward the listener;
- a listener detection part for detecting the listener sitting in the seat;
- and
- a controller for controlling the magnitude of the audio output from the loudspeaker, wherein
- when the listener is not detected, the controller stops or reduces the audio output.
Dependencies are inferred from the claim text.