Clocking converter for asynchronous data

Details Clocking converter for asynchronous data Clocking converter for asynchronous data

1994-10-11

1997-11-04

Chin, Stephen

Pulse or digital communications

Synchronizers

375355, 375371, 370518, 327141, H04L 700

Patent

active

056848412

ABSTRACT:
A clocking converter for asynchronous data capable of performing bit synchronization processes of asynchronous data of different patterns by the same circuit, requiring virtually no change made therein, and shortening the processing time while achieving downscaling of the circuit structure. The clocking converter is structured such that asynchronous data is successively delayed by a constant time interval in a sampling input means, the delayed multiple sampling data are latched by a latch means with a system clock while a latch signal is being supplied thereto, two changing points of the latched data are detected by a changing point detection means, the changing points are successively detected from one direction by a changing point output means, the phase virtually in the middle between the changing points is detected by a select signal generation means, and the sampling data corresponding to the phase is selected from among the multiple sampling data by a select means and output therefrom as the synchronous data.

REFERENCES:
patent: 4977582 (1990-12-01), Nichols et al.
patent: 5155486 (1992-10-01), Murfet et al.
patent: 5327466 (1994-07-01), Marinaro
patent: 5341404 (1994-08-01), Sevenhans et al.

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