US 2003/0114116 A1Published application

Rear entertainment system

AssigneePioneer Corporation

InventorsTakao Inoue, Satoshi Kaminaga

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Abstract

A first IR transmission portion is disposed in front of a rear seat of a vehicle while a second IR transmission portion is disposed at the rear of the rear seat. A fellow passenger in the rear seat puts on headphones so as to receive and listen to audio signals. The first and second IR transmission portions optically modulate the same audio information and radiate it spatially. For example, LEDs emitting infrared light are used as devices for the optical conversion. The first IR transmission portion transmits optical signals from the front toward the rear while the second IR transmission portion transmits the optical signals from the rear toward the front. Particularly by the second IR transmission portion, the signals are transmitted to the front including the driver's seat of the vehicle so that any dead zone can be removed from the vehicle interior.

Claims14

Dependent claims

An entertainment system mounted on a vehicle, the system comprising:

an audio signal transmitting unit;
and
an audio signal receiving unit,
wherein the audio signal transmitting unit including:
a first transmitting unit for transmitting the supplied audio signals backward;
and
a second transmitting unit for transmitting the supplied audio signals forward;
a signal supply unit for supplying same audio signals to the first and second transmitting units;
and
wherein the audio signal receiving unit including:
a first receiving unit for receiving audio signals transmitted backward by at least one of the first and second transmitting units;
a second receiving unit for receiving audio signals transmitted forward by at least one of the first and second transmitting units;
and
an audio signal converting unit capable of abutting against left and right ears and for converting the audio signals received by at least one of the first and second receiving units into sound based on mechanical vibration.

11 more elements

Dependencies are inferred from the claim text.