Methods and devices for obtaining sampling clocks

Details Methods and devices for obtaining sampling clocks Methods and devices for obtaining sampling clocks

2006-06-13

2006-06-13

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C345S213000

Reexamination Certificate

active

07061281

ABSTRACT:
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.

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