Synchronous frequency convertor for timebase signal generation

Details Synchronous frequency convertor for timebase signal generation Synchronous frequency convertor for timebase signal generation

2005-03-15

2005-03-15

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

C327S113000

Reexamination Certificate

active

06867631

ABSTRACT:
Methods and apparatuses for generating a synchronous digital output signal stream from two digital input signal streams. In one aspect of the present invention, a method to generate a digital output signal stream from two digital input signal streams includes: detecting a first transition edge in a first digital input signal stream; and generating a third transition edge in a digital output signal stream. The third transition edge corresponds to the first transition edge; and the third transition edge is synchronized substantially with a second transition edge in a second digital input signal stream. In one example according to this aspect, a third digital signal stream is generated from synchronizing substantially transition edges of the first digital input signal stream with transition edges of the second digital input signal streams; and the first transition edge is detected using the third digital signal stream (e.g., comparing the third digital signal stream with a delayed version of the third digital signal stream).

REFERENCES:
patent: 5175453 (1992-12-01), Chang et al.
patent: 5633607 (1997-05-01), Millar
patent: 5708381 (1998-01-01), Higashisaka

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