Apparatus and method for controlling audio/video device

Details Apparatus and method for controlling audio/video device Apparatus and method for controlling audio/video device

2005-01-26

2009-02-17

Tran, Trang U (Department: 2622)

Television

Receiver circuitry

Remote control

C348S552000

Reexamination Certificate

active

07492416

ABSTRACT:
An apparatus and method for controlling an audio/video (AV) device. A first AV device is adapted to receive a remote control signal, selectively modulate the received remote control signal, and transfer the modulated remote control signal along with an audio signal over an audio line. A second AV device is adapted to receive the modulated remote control signal transferred along with the audio signal over the audio line, separate the received remote control signal from the received audio signal, demodulate the separated remote control signal, and perform an operation corresponding to the demodulated remote control signal. Therefore, it is possible to normally control an AV device even though a user involuntarily operates a remote controller of the AV device toward the screen of a TV under the condition that the AV device is placed far from the TV or the angle defined by the TV, user and AV device is large.

REFERENCES:
patent: 6690290 (2004-02-01), Young et al.
patent: 6930661 (2005-08-01), Uchida et al.
patent: 6940562 (2005-09-01), Sato
patent: 7038738 (2006-05-01), Kwon

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