Telegraphy – Systems – Chemical
Patent
1974-07-30
1976-06-01
Libman, George H.
Telegraphy
Systems
Chemical
178 695R, 178 695TV, 178 6, H04L 708, H04L 1702, H04N 700
Patent
active
039611370
ABSTRACT:
Apparatus for processing groups of digital data for transmission comprises a run-in signal generator for providing at the output of the apparatus an output in which the groups of data are each preceded by a run-in signal, said apparatus being so constituted that the output is in the form of digital signals of the complemented type, and a start code generator operable to provide a start code with at least one break of complementation and arranged to insert a start code between each group and its preceding run-in signal.
The apparatus is especially suitable for the transmission of data intermittently, e.g. during periods of a television signal unoccupied by wide-band picture signals. Because of the complementation break, the start code cannot arise from a data combination. Good reliability of reception is achieved on channels susceptible to interference.
An apparatus for reception comprises a memory device controlled by a clock circuit responsive to the run-in signal, and means responsive to the start code to route the data for display purposes.
REFERENCES:
patent: 2700155 (1955-01-01), Clayden
patent: 3156893 (1964-11-01), Harel
patent: 3419804 (1968-12-01), Gorog et al.
patent: 3458835 (1969-07-01), Saeger
patent: 3479451 (1969-11-01), Regunberg
patent: 3491199 (1970-01-01), Weinstein et al.
patent: 3509277 (1970-04-01), Moore et al.
patent: 3514706 (1970-05-01), Dupraz
patent: 3576391 (1971-04-01), Houghton
patent: 3726992 (1973-04-01), Eguichi et al.
Blake Alan Ronald
Dodds Philip John
Douglas Brian Neil
Hutt Peter Richard
VON Cavallar Gunter
Breiner A. W.
Independent Broadcasting Authority
Libman George H.
Martin John C.
LandOfFree
Biphase digital television systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Biphase digital television systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biphase digital television systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2403812