发明授权
US08942541B2 Recording medium and recording method reducing processing load in realization of TS packet level copyright protection, and playback device and playback method for playback of such recording medium
有权
记录介质和记录方法减少处理负载实现TS数据包级版权保护，以及播放设备和播放方法，用于播放这种记录介质
- 专利标题： Recording medium and recording method reducing processing load in realization of TS packet level copyright protection, and playback device and playback method for playback of such recording medium
- 专利标题（中）： 记录介质和记录方法减少处理负载实现TS数据包级版权保护，以及播放设备和播放方法，用于播放这种记录介质
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申请号： US13664989申请日： 2012-10-31
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公开(公告)号： US08942541B2公开(公告)日： 2015-01-27
- 发明人: Taiji Sasaki , Minehisa Nagata , Masaya Yamamoto , Takahiro Yamaguchi
- 申请人： Panasonic Intellectual Property Management Co., Ltd.
- 申请人地址： JP Osaka
- 专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人： Panasonic Intellectual Property Management Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 主分类号： H04N5/783
- IPC分类号： H04N5/783 ; H04N5/913 ; G11B27/00 ; G11B27/10 ; G11B27/32 ; H04N5/85 ; H04N9/804 ; H04N9/806 ; H04N9/82
摘要：
A recording medium enables special playback processing although part of the AV stream recorded therein is transformed. An AV stream, a first EP map, and a second EP map are recorded on the recording medium. In the AV stream, a part of the multiplexed stream including a first video stream and a second video stream is transformed. The first EP map indicates one or more entry points of the first video stream and the second EP map indicates one or more entry points of the second video stream. TS packets constituting I-pictures of the first video stream are indicated by every 4N-th entry point in the first EP map, and TS packets constituting I-pictures of the second video stream are indicated by the entry points whose presentation time is closest to the presentation time of any one of the every 4N-th entry point in the first EP map.
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