Method and apparatus for detecting a sampling-period sync signal

Details Method and apparatus for detecting a sampling-period sync signal Method and apparatus for detecting a sampling-period sync signal

1990-07-30

1992-04-14

Williams, Howard L.

Coded data generation or conversion

Analog to digital conversion followed by digital to analog...

341122, 341155, 360 51, 375118, 328139, 307523, H03M 100

Patent

active

051051923

ABSTRACT:
In a method and an apparatus for detecting a sampling-period sync signal from an output signal of a digital-to-analog converter, sampling-period components are extracted from the output signal of the digital-to-analog converter. Low-frequency components of the output signal of the digital-to-analog converter are also extracted. A detection is made as to whether a level of the low-frequency components increases or decreases. A polarity of the sampling-period components is changed in response to whether the level of the low-frequency components increases or decreases.

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