Invention Grant
US07561777B2 Method and apparatus for simultaneous recording and displaying two different video programs
有权
用于同时记录和显示两个不同视频节目的方法和装置
- Patent Title: Method and apparatus for simultaneous recording and displaying two different video programs
- Patent Title (中): 用于同时记录和显示两个不同视频节目的方法和装置
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Application No.: US10204575Application Date: 2001-03-13
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Publication No.: US07561777B2Publication Date: 2009-07-14
- Inventor: Eric Stephen Carlsgaard , Thomas Edward Horlander
- Applicant: Eric Stephen Carlsgaard , Thomas Edward Horlander
- Applicant Address: FR Boulogne-Billancourt
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Boulogne-Billancourt
- Agent Robert D. Shedd; Joseph J. Opalach; Catherine A. Ferguson
- International Application: PCT/US01/08142 WO 20010313
- International Announcement: WO01/72036 WO 20010927
- Main IPC: H04N7/00
- IPC: H04N7/00 ; H04N5/91 ; H04N9/00 ; H04N5/45 ; H04N5/445

Abstract:
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, a second channel processing circuit/logic, and common circuitry/logic. The common circuitry comprises a digital video encoder pipe 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.
Public/Granted literature
- US20030020832A1 Method and apparatus for simultaneous recording and displaying two different video programs Public/Granted day:2003-01-30
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