Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2007-06-26
2007-06-26
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S204000
Reexamination Certificate
active
10700627
ABSTRACT:
An apparatus for adjusting a sampling phase in analog to digital conversion, and an adjustment method thereof is disclosed. Provided are an apparatus for adjusting a sampling phase of a digital display including a phase locked loop (PLL) circuit unit for converting a frequency of a sampling clock signal and outputting the converted frequency, the sampling clock signal for converting an analog video signal into digital format, an analog to digital converter (ADC) for converting the incoming analog video signal into digital format using the sampling clock signal input from the PLL circuit unit, a detection unit for detecting a maximum phase shift of the video signal converted at the ADC, and a control unit for controlling the PLL circuit unit so that the sampling phase can be adjusted in accordance with the maximum phase shift detected by the detection unit, and an adjustment method of the apparatus.
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Chinese Office Action issued May 19, 2006 with respect to Chinese Patent Application No. 200310114807.X filed on Nov. 7, 2003.
Hjerpe Richard
Said Mansour M.
Samsung Electronics Co,. Ltd.
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