发明名称 |
DISTRIBUTION CONTROL METHOD OF DIGITAL AUDIO/VIDEO DATA, DISTRIBUTION APPARATUS, VIDEO SELECTION/DISTRIBUTION APPARATUS USING THE SAME, AND CHANNEL SWITCH CONTROL METHOD AND APPARATUS OF DIGITAL DATA |
摘要 |
This invention relates to a technology of digital audio and video data distribution in which audio and video reproduction is not disturbed when channels are switched. Only channel data switched by a digital processing control circuit is outputted and a reset signal is generated for a microcomputer (718) so that a reproduction circuit (517) for compressed digital audio and video data may be reset. In this way, a memory for the audio and video data is initialized and discontinuous portions of the compressed digital data caused by channel switching are discarded. This invention is suitable for video selection/distribution system used inside a limited range such as in hotels, hospitals, and so forth.
|
申请公布号 |
WO9706638(A1) |
申请公布日期 |
1997.02.20 |
申请号 |
WO1995JP01563 |
申请日期 |
1995.08.07 |
申请人 |
HITACHI, LTD.;YAMASHITA, TOMOCHIKA;INOUE, MASAYUKI;NISHIDA, MASAMI |
发明人 |
YAMASHITA, TOMOCHIKA;INOUE, MASAYUKI;NISHIDA, MASAMI |
分类号 |
H04H20/63;H04N7/16;(IPC1-7):H04N7/16;H04H1/02;H04J3/00 |
主分类号 |
H04H20/63 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|