Invention Grant
- Patent Title: Video receiver with DC offset cancellation
- Patent Title (中): 具有DC偏移消除的视频接收器
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Application No.: US12043370Application Date: 2008-03-06
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Publication No.: US08077262B2Publication Date: 2011-12-13
- Inventor: Weijie Yun , Samuel Sheng
- Applicant: Weijie Yun , Samuel Sheng
- Applicant Address: KY Grand Cayman
- Assignee: Telegent Systems, Inc.
- Current Assignee: Telegent Systems, Inc.
- Current Assignee Address: KY Grand Cayman
- Agency: Ogawa P.C.
- Agent Richard T. Ogawa
- Main IPC: H04N5/44
- IPC: H04N5/44

Abstract:
An analog video receiver implemented in an integrated circuit device. The analog video receiver includes a mixing circuit to mix an analog video signal with a sinusoid to generate a frequency-shifted analog video signal, and an offset cancellation circuit to obtain a sample of the frequency-shifted analog video signal during a first time interval and, based on the sample, generate an offset cancellation signal that, when summed with the frequency-shifted analog video signal, reduces a substantially time-invariant offset in the frequency-shifted analog video signal.
Public/Granted literature
- US20080158433A1 VIDEO RECEIVER WITH DC OFFSET CANCELLATION Public/Granted day:2008-07-03
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