发明公开
EP1264475A2 METHOD AND APPARATUS FOR SIMULTANEOUS RECORDING AND DISPLAYING TWO DIFFERENT VIDEO PROGRAMS
有权
方法和设备进行即时录音,演奏两个不同视频节目
- 专利标题: METHOD AND APPARATUS FOR SIMULTANEOUS RECORDING AND DISPLAYING TWO DIFFERENT VIDEO PROGRAMS
- 专利标题(中): 方法和设备进行即时录音,演奏两个不同视频节目
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申请号: EP01916651.1申请日: 2001-03-13
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公开(公告)号: EP1264475A2公开(公告)日: 2002-12-11
- 发明人: CARLSGAARD, Eric, Stephen , HORLANDER, Thomas, Edward
- 申请人: Thomson Licensing S.A.
- 申请人地址: 46, quai Alphonse Le Gallo 92648 Boulogne Cedex FR
- 专利权人: Thomson Licensing S.A.
- 当前专利权人: Thomson Licensing S.A.
- 当前专利权人地址: 46, quai Alphonse Le Gallo 92648 Boulogne Cedex FR
- 代理机构: Kohrs, Martin
- 优先权: US190378P 20000317
- 国际公布: WO01072036 20010927
- 主分类号: H04N5/45
- IPC分类号: H04N5/45 ; H04N5/44
摘要:
A method and apparatus for simultaneously recording and displaying video signals from two different video sources. The apparatus comprises a main channel processing circuit/logic (148), a second channel processing circuit/logic (150), and common circuitry/logic (152). The common circuitry comprises a digital video encoder pipe (112) that decodes both a first and second encoded video signals. The main channel processing circuit processes a first decoded video signal utilizing a first clock to form a main picture for display. The second channel processing circuit processes a second decoded video signal to form a PIP picture for combination with the main picture for display. The PIP picture is produced using a second clock signal that is independent from the first clock signal. In a record mode, the second channel clock is coupled to the second channel processing circuit to produce a recordable signal using a digital encoder. The recordable signal also forms the PIP picture that is coupled to the main channel processing circuit to produce a PIP picture that is used to monitor the recording process.
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