Bidirectional data communication system

Details Bidirectional data communication system Bidirectional data communication system

1977-04-14

1980-09-30

Shaw, Gareth D.

Boots, shoes, and leggings

H04L 704

Patent

active

042259398

ABSTRACT:
A bidirectional data communications system having many remote terminals operating with a central unit includes means at each terminal for reproducing a clock from the incoming data. Upstream data from the terminals to the central unit is transmitted at the same frequency as the incoming data using the reproduced clock from the downstream transmission. At the central unit, the incoming data from each terminal is of arbitrary phase, but must be extracted without delay from the upstream transmission for data processing purposes. A clock signal substantially resynchronized with the data stream is provided by detecting the initial presence of data, and timing the frequency division of a higher frequency original clock so that the phase and frequency of the data match the clock requirements at the central unit.

REFERENCES:
patent: 3465301 (1969-09-01), Osborn
patent: 3531777 (1970-09-01), West
patent: 3593301 (1971-07-01), Newcomb
patent: 3643220 (1972-02-01), Vatagi
patent: 3676858 (1972-07-01), Finch et al.
patent: 3778549 (1973-12-01), Schroder et al.
patent: 3781818 (1973-12-01), Pardoe et al.
patent: 3898373 (1975-08-01), Walsh
patent: 3970997 (1976-07-01), Daly et al.

Affiliated with

Also associated with

Rating

Bidirectional data communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1173045