Asynchronous pulse converter

Details Asynchronous pulse converter Asynchronous pulse converter

1992-05-06

1994-07-19

Chin, Stephen

Pulse or digital communications

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307269, 328 63, 328 72, H04L 700, H04L 2536, H04L 2540, H03K 513

Patent

active

053316690

ABSTRACT:
An improved pulse converter for converting a stream of asynchronous input pulses of undetermined duration into a stream of synchronous output pulses of standard duration. The input pulses may occur in any phase or frequency relationship to the reference with the limitation that the input pulses must not occur more frequently than one period of a reference clock plus one synchronizer input hold time and one synchronizer setup time. Additionally, the input pulses must be at least as wide as required to set an input flip-flop. The inventive asynchronous pulse converter requires only two flip-flops, a synchronizer, and a single Exclusive-OR gate, and a single reference clock.

REFERENCES:
patent: 4851710 (1989-07-01), Grivna
patent: 4926445 (1990-05-01), Robb
patent: 4935942 (1990-06-01), Hwang et al.
patent: 4973860 (1990-11-01), Ludwig
patent: 5012127 (1991-04-01), Gates et al.
patent: 5155745 (1992-10-01), Sugawara et al.

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