Invention Grant
- Patent Title: Digital phase-locked loop circuit and a method thereof
- Patent Title (中): 数字锁相环电路及其方法
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Application No.: US11179847Application Date: 2005-07-12
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Publication No.: US07634037B2Publication Date: 2009-12-15
- Inventor: Chua-Chin Wang , Ming-Kai Chang , Ling-Shiou Huang
- Applicant: Chua-Chin Wang , Ming-Kai Chang , Ling-Shiou Huang
- Applicant Address: TW TW
- Assignee: National Sun Yat-Sen University,Himax Technologies Limited
- Current Assignee: National Sun Yat-Sen University,Himax Technologies Limited
- Current Assignee Address: TW TW
- Agency: The Webb Law Firm
- Priority: TW94100399A 20050106
- Main IPC: H03D3/24
- IPC: H03D3/24 ; H04L7/00
Abstract:
A method and a circuit for resolving the out-of-phase problem between a color burst signal and a sub-carrier signal of a television system. A delay means is used which leads to the synchronization of the color burst signal and the sub-carrier signal such that a subsequent color demodulator can demodulate correct color signals. Therefore, the locking of the two signals will be fastened without any excessively large circuit hardware.
Public/Granted literature
- US20060146972A1 Digital phase-locked loop circuit and a method thereof Public/Granted day:2006-07-06
Information query
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