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Satellite video multiplexing communications system

  • US 4,215,370 A
  • Filed: 02/22/1978
  • Issued: 07/29/1980
  • Est. Priority Date: 02/22/1978
  • Status: Expired due to Term
First Claim
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1. In combination in a video transmission system for communicating two video programs via a single communications channel, a transmitter including means for supplying first and second television signals each including successive lines of video information separated by horizontal synchronizing pulse periods, first and second storage means for storing successive lines of said first television signal, third and fourth storage means for storing successive lines of said second television signal, first demultiplexing means for loading said first and second television signals into said first and second, and said third and fourth storage means therefor, respectively, means for generating a digital synchronizing word, and first multiplexing means for cyclically supplying said synchronizing word, one line of said first television signal read out from an alternating one of said first and second storage means, and one line of said second television signal read out from an alternating one of said third and fourth storage means.

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