Asynchronous data clock generator

Details Asynchronous data clock generator Asynchronous data clock generator

1985-03-07

1986-06-17

Griffin, Robert L.

Pulse or digital communications

Spread spectrum

Direct sequence

370102, 370108, H04L 2536

Patent

active

045960267

ABSTRACT:
A circuit and method for generating a substantially smooth clock for clocking asynchronous data to a user device. Incoming asynchronous data is stored in an elastic buffer such as a first-in first-out memory. Periodically, an output identifiable bit is read into the memory and a multibit digital signal corresponding to the number of output clock pulses for it to be read out is determined. This signal, which corresponds to the occupancy of the first-in first-out memory, is used to generate an analog voltage which controls a voltage controlled oscillator that provides the substantially smooth clock for reading data out of the first-in first-out memory. The control loop causes the long term rate of the smooth clock to be substantially equal to the incoming asynchronous data rate.

REFERENCES:
patent: 3225301 (1965-12-01), McCann
patent: 3241122 (1966-04-01), Bardell
patent: 3420956 (1969-01-01), Heightley
patent: 3531777 (1970-09-01), West
patent: 3549804 (1970-12-01), Greenspan
patent: 3745472 (1973-07-01), Garth
patent: 3754098 (1973-08-01), Abramson et al.
patent: 3825683 (1974-07-01), Pitroda et al.
patent: 3893033 (1975-07-01), Finch
patent: 3894246 (1975-07-01), Torgrim
patent: 4025720 (1977-05-01), Pachynski
patent: 4070630 (1978-01-01), Hepworth
patent: 4119796 (1978-10-01), Jones
patent: 4181975 (1980-01-01), Jenkins
patent: 4187394 (1980-02-01), Siever
patent: 4270183 (1981-05-01), Robinson et al.

Affiliated with

Also associated with

Rating

Asynchronous data clock generator does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2276789