Methods and devices for obtaining sampling clocks

Methods for obtaining a sampling phase to generate image information according to an analog image signal and timing information are performed. In an exemplary method, sampling clocks having a predetermined phase difference therebetween is sequentially generated according to timing information. The a...

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Bibliographic Details
Main Author YANG-HUNG,TU SHIH
Format Patent
LanguageEnglish
Published 28.12.2005
Edition7
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
BASIC ELECTRONIC CIRCUITRY
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PHYSICS
PULSE TECHNIQUE
SEALS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:Methods for obtaining a sampling phase to generate image information according to an analog image signal and timing information are performed. In an exemplary method, sampling clocks having a predetermined phase difference therebetween is sequentially generated according to timing information. The analog image signal is sampled using the sampling clocks, and sequential sampled values corresponding to each sampling clock are generated. The sampled values are detected to obtain edges formed by the sampled values. Magnitudes of the edges are accumulated to generate accumulation values. An optimum sampling clock is obtained according to the accumulation values. The optimum sampling clock corresponding to the accumulation value is the largest one among the accumulation values corresponding to the adjacent sampling clocks, and the difference among the accumulation values corresponding to the adjacent sampling clocks is within a predetermined range. The analog image signal is sampled using the sampling clock corresponding to the selected accumulation value.
Bibliography:Application Number: CN200510077188