Generator of word clock synchronized with timing reference...

Details Generator of word clock synchronized with timing reference... Generator of word clock synchronized with timing reference...

H - Electricity

03

K

H03K 3/00 (2006.01) G11B 20/14 (2006.01) H03M 9/00 (2006.01) H04L 7/04 (2006.01)

Patent

CA 2457286

A word clock generator creates a serial clock signal having a frequency corresponding to the bit rate of a serial digital signal in which the number of bits in one word set as one data unit is "N"; creates a first word clock signal having a frequency corresponding to the word rate by dividing the frequency of the serial clock signal by N; creates a group of N word clock signals in a multiplicity of phases by delaying the phase of the first word clock signal by one period of the serial clock signal at a time and by giving said delay (N-1) times; converts the serial digital signal into parallel signals on the basis of the serial clock signal; determines whether or not a predetermined timing reference bit sequence exists in the parallel signals and detects phase information according to the timing reference bit; and selects the word clock signal having a phase coinciding with the phase information from the group of word clock signals in a multiplicity of phases and outputs the selected word clock signal.

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