Invention Grant
US08462269B2 Devices and methods for extracting a synchronization signal from a video signal
有权
用于从视频信号中提取同步信号的装置和方法
- Patent Title: Devices and methods for extracting a synchronization signal from a video signal
- Patent Title (中): 用于从视频信号中提取同步信号的装置和方法
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Application No.: US12040935Application Date: 2008-03-03
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Publication No.: US08462269B2Publication Date: 2013-06-11
- Inventor: Ping Cheng , Shang-Yi Lin
- Applicant: Ping Cheng , Shang-Yi Lin
- Applicant Address: TW Hsin-Chu
- Assignee: Mediatek Inc.
- Current Assignee: Mediatek Inc.
- Current Assignee Address: TW Hsin-Chu
- Agency: McClure, Qualey & Rodack, LLP
- Main IPC: H04N5/08
- IPC: H04N5/08
Abstract:
A device for extracting a synchronization signal from a video signal has a first comparator and an adjustment circuit. The first comparator receives the video signal, compares the video signal with a first threshold, and generates the synchronization signal according to the compared result. The adjustment circuit receives the video signal, compares the video signal with a plurality of second thresholds of different values, and changes the first threshold according to the compared results.
Public/Granted literature
- US20090128695A1 DEVICES AND METHODS FOR EXTRACTING A SYNCHRONIZATION SIGNAL FROM A VIDEO SIGNAL Public/Granted day:2009-05-21
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