发明授权
US07174085B2 Apparatus and method of seamless switching between a live DTV decoding and a PVR playback
失效
实时DTV解码和PVR播放之间的无缝切换的装置和方法
- 专利标题: Apparatus and method of seamless switching between a live DTV decoding and a PVR playback
- 专利标题(中): 实时DTV解码和PVR播放之间的无缝切换的装置和方法
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申请号: US09933231申请日: 2001-08-20
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公开(公告)号: US07174085B2公开(公告)日: 2007-02-06
- 发明人: Jason Demas , Marcus Kellerman , Francis Cheung , Sherman Xuemin Chen
- 申请人: Jason Demas , Marcus Kellerman , Francis Cheung , Sherman Xuemin Chen
- 申请人地址: US CA Irvine
- 专利权人: Broadcom Corporation
- 当前专利权人: Broadcom Corporation
- 当前专利权人地址: US CA Irvine
- 代理机构: McAndrews, Held & Malloy, Ltd.
- 主分类号: H04N5/781
- IPC分类号: H04N5/781 ; H04N5/76 ; H04N5/915
摘要:
Methods and apparatus for switching between a live video decoding and a recorded playback in a digital video and recording system. A received video data stream is transmitted to a first-in first-out video decoder buffer without first looping the video data stream through a playback buffer. The video data stream is transmitted from the video decoder buffer to a video decoder. If a “pause” command is received, the video data stream is transmitted to a first-in first-out playback buffer, while continuing to transmit the video data stream to the video decoder buffer. Transmission of the video data stream to the video decoder buffer is halted when the video decoder buffer fills up. The last byte of the video data stream that was transmitted to the video decoder buffer is marked. If a “play” command is received, the video data stored in the video decoder buffer is transmitted to the video decoder. The video data stored in the playback buffer is transmitted to the video decoder buffer starting at a point immediately after the data element that was marked previously.
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