Bit synchronizing circuit

Pulse or digital communications – Synchronizers – Synchronizing the sampling time of digital data

Reexamination Certificate

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Details

C375S360000, C375S371000

Reexamination Certificate

active

06850580

ABSTRACT:
A bit synchronizing circuit used in a reception circuit for serial communication comprises a data sampling circuit for over-sampling inputted data, a change point detecting circuit for detecting a change point of the inputted data based on an output from the data sampling circuit, a change point holding circuit for changing a held value stepwise in the case where the output from the change point detecting circuit is different from the held data, a selected value setting circuit for determining which value of the data sampling circuit is to be selected based on the output of the change point holding circuit and a data selecting circuit for selecting the data from the data sampling circuit based on the output of the selected value setting circuit. It alternatively may comprise a data sampling circuit for over-sampling the bit data, a synchronizing circuit, a change point detecting circuit, and a data selecting circuit.

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