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1. 发明申请

WO1995032584A1 VIDEO TIME-SHIFTING APPARATUS 审中-公开
标题翻译：视频时移装置
公开(公告)号：WO1995032584A1
公开(公告)日：1995-11-30
申请号：PCT/US1995006206
申请日：1995-05-18
申请人： GEMSTAR DEVELOPMENT CORPORATION
发明人： GEMSTAR DEVELOPMENT CORPORATION , RUSSO, James , LEVINE, Michael, R.
IPC分类号： H04N05/78
CPC分类号： H04N5/937 , G11B19/02 , G11B27/034 , G11B27/105 , G11B27/107 , G11B27/11 , G11B27/28 , G11B27/34 , G11B2220/20 , G11B2220/2525 , G11B2220/61 , G11B2220/65 , G11B2220/90 , H04N5/445 , H04N5/781 , H04N5/85 , H04N5/907 , H04N9/7921 , H04N9/8042 , H04N9/8047 , H04N21/47
摘要： A video time-shifting system having a continuous recording track accessed by separate, asynchronous read and write facilities initiates video program playback anywhere in the program while continuing real time recording, thus providing VCR-like program control like PAUSE/RESUME, REWIND, and FAST FORWARD. Memory (156) stores information relating to various program points so that even after multiple PAUSE commands, the system automatically provides correct program re-entry. Preferably, the storage means is a continuous recording track in a magnetic disk drive. To prevent video program data recording or reproducing discontinuities, the system preferably incorporates automatic switching between plural write heads (124, 126, 132, 134), each associated with different recording tracks, to link the different recording tracks into a single, continuous track. Although analog program information may be stored, preferably digital storage along with data compression (105, 107) is used to increase recording capacity. The system preferably further includes a video display generator (144) to output program-related visual indicia (202, 242, 244), and symbols (206, 212, 214, 240, 246) relating to one or more points in the program and/or the time-shifted version thereof, to the display device.
摘要翻译：具有通过单独的异步读取和写入设施访问的连续记录轨道的视频时移系统在程序中的任何地方启动视频节目播放，同时继续实时记录，从而提供诸如PAUSE / RESUME，REWIND和FAST之类的类似VCR的程序控制前锋。存储器（156）存储与各种程序点相关的信息，使得即使在多个暂停命令之后，系统自动提供正确的程序重新输入。优选地，存储装置是磁盘驱动器中的连续记录轨道。为了防止视频节目数据记录或再现不连续性，系统优选地包括在与不同记录轨道相关联的多个写入头（124,126,132,134）之间的自动切换，以将不同的记录轨道链接成单个连续的轨道。虽然可以存储模拟节目信息，但优选使用数字存储以及数据压缩（105,107）来增加记录容量。系统优选还包括视频显示产生器（144），用于输出与程序中的一个或多个点相关的节目相关视觉标记（202,242,244）和符号（206,212,214,240,246），以及 /或其时移版本，提供给显示装置。

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