Invention Grant
- Patent Title: Auto-calibrating demodulator, associated method and TV receiver
- Patent Title (中): 自动校准解调器，相关方法和电视接收机
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Application No.: US12833184Application Date: 2010-07-09
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Publication No.: US08363169B2Publication Date: 2013-01-29
- Inventor: Chun-Kai Wei , Yung-Hsin Lin
- Applicant: Chun-Kai Wei , Yung-Hsin Lin
- Applicant Address: TW
- Assignee: MStar Semiconductor, Inc.
- Current Assignee: MStar Semiconductor, Inc.
- Current Assignee Address: TW
- Agency: Han IP Law PLLC
- Agent Andy M. Han
- Priority: TW98123284A 20090709
- Main IPC: H04N5/455
- IPC: H04N5/455
Abstract:
A demodulator comprises a reference voltage generating circuit for generating a reference voltage, a reference resistor for converting the reference voltage to a reference current, a current digital-to-analog converter (IDAC) for receiving a digital code and generating an output signal, a comparison apparatus for comparing the reference voltage with the output signal to generate a comparison output, and a calibration apparatus for updating the digital code according to the comparison output to calibrate the IDAC.
Public/Granted literature
- US20110007222A1 Auto-Calibrating Demodulator, Associated Method and TV Receiver Public/Granted day:2011-01-13
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