Analog front-end circuit for digital displaying apparatus and control method thereof
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United States of America Patent
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Oct 9, 2007
Grant Date -
Jul 27, 2006
app pub date -
Apr 11, 2006
filing date -
Apr 17, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An analog front-end (AFE) circuit of a digital display is disclosed including: a first circuit to intermittently invert a working clock to generate a control signal and to generate a sampling signal, wherein the sampling signal is corresponding to the working clock; a first analog-to-digital converter (ADC) coupled to the first circuit for converting an analog video signal into a first digital video signal according to the sampling signal; a second analog-to-digital converter coupled to the first circuit for converting the analog video signal into a second digital video signal according to the sampling signal; and a first multiplexer for selectively outputting the first digital video signal or the second digital video signal according to the control signal.
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