Audio/video reproduction system, video display device, and audio output device for synchronizing decoding of video frames by the video display device to decoding of audio frames by the audio output device

Audio/video reproduction system, video display device, and audio output device for synchronizing decoding of video frames by the video display device to decoding of audio frames by the audio output device

Audio decoding (108) is carried out in a video display device (10), and a frame number (AC) of the decoded audio is wirelessly transmitted, together with audio data, to an audio output device (20). An audio frame number (RC) is returned from the audio output device (20) to the video display device (...

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1. Verfasser: Matsuo Eiji
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator Matsuo Eiji
description Audio decoding (108) is carried out in a video display device (10), and a frame number (AC) of the decoded audio is wirelessly transmitted, together with audio data, to an audio output device (20). An audio frame number (RC) is returned from the audio output device (20) to the video display device (10). The timing of video decoding (106) is controlled such that the frame number (VC) of the video decoded in the video display device (10) matches the returned audio frame number (RC). Even if it is not possible to predict the delays such as those involved with transmission from the video display device to the audio output device, and even if the delays fluctuate, it is possible to synchronize the video display with the audio output.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
title Audio/video reproduction system, video display device, and audio output device for synchronizing decoding of video frames by the video display device to decoding of audio frames by the audio output device
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