Invention Grant
US07342967B2 System and method for enhancing performance of personal video recording (PVR) functions on hits digital video streams
有权
用于提高个人视频录像(PVR)功能的命中数字视频流的系统和方法
- Patent Title: System and method for enhancing performance of personal video recording (PVR) functions on hits digital video streams
- Patent Title (中): 用于提高个人视频录像(PVR)功能的命中数字视频流的系统和方法
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Application No.: US10317642Application Date: 2002-12-11
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Publication No.: US07342967B2Publication Date: 2008-03-11
- Inventor: Gaurav Aggarwal , Arun Gopalakrishna Rao , Marcus Kellerman , David Erickson , Jason Demas , Sandeep Bhatia , Girish Hulmani
- Applicant: Gaurav Aggarwal , Arun Gopalakrishna Rao , Marcus Kellerman , David Erickson , Jason Demas , Sandeep Bhatia , Girish Hulmani
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews Held & Malloy Ltd.
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02 ; H04N11/04 ; H04B1/66

Abstract:
A system, method, and apparatus for reducing the video decoder processing requirements for rewinding a HITS stream are presented herein. During rewind of a HITS stream, the video decoder builds a clean reference picture. The clean reference picture is built by decoding each of the P-pictures in the EP-EP segment. However, because the P-pictures are not displayed, the decoder does not decode the portion of the P-picture below the last intracoded slice. The decoder can build the clean reference picture without decoding the portions of the P-pictures below the last intracoded slice because the subsequent pictures do not use the said portions for prediction.
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