Method and apparatus for clock recovery

Details Method and apparatus for clock recovery Method and apparatus for clock recovery

1992-05-08

1993-08-17

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural oscillators controlled

307269, 331 49, 331 55, 331 56, 375110, 375120, H03L 706, H04L 7033

Patent

active

052372901

ABSTRACT:
A method and apparatus for recovering the phase of a signal which may change at periodic intervals is disclosed which comprises gated variable frequency oscillators. These results are obtained in an illustrative embodiment of the present invention in which an incoming signal is fed into a gated oscillator and the complement of the incoming signal is fed into a matching gated oscillator. Advantageously, the respective outputs of the two oscillators are fed into a Boolean NOR gate. When the gated oscillators are designed to oscillate at the frequency of the incoming signal, the output waveform will have a bounded phase relationship with respect to the incoming signal.

REFERENCES:
patent: 3893042 (1975-07-01), Whitman et al.
patent: 4567448 (1986-01-01), Ikeda
patent: 4891598 (1990-01-01), Yoshida et al.
patent: 5134637 (1992-07-01), Beyer et al.
Dorros, et al., The Bell System Technical Journal, "An Experimental 224 Mb/s Digital Repeatered Line", vol. XLV, No. 7, Sep. 1966, pp. 993-1043.
Cordell, et al., IEEE Journal of Solid-State Circuits, "A 50 MHz Phase-and Frequency-Locked Loop", vol. SC 14, No. 6, pp. 1003-1010, Dec. 1979.

Affiliated with

Also associated with

Rating

Method and apparatus for clock recovery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for clock recovery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for clock recovery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2247020