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Television transmission system with multiplexed components

  • US 4,866,522 A
  • Filed: 02/19/1988
  • Issued: 09/12/1989
  • Est. Priority Date: 02/20/1987
  • Status: Expired due to Fees
First Claim
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1. In a television transmission system in which a television signal is transmitted as a sequence of frames, each frame comprising at least one vertical blanking interval and a plurality of lines comprising a first group of lines occurring within said vertical blanking interval and a second group of lines occurring outside of said vertical blanking interval, substantially all of said first and second groups of lines having first and second time multiplexed portions, said first portion of said first and second groups of lines conveying first information in digital form at a first bit rate and said second portion of said second group of lines conveying vision information, characterized in that:

  • said first group of lines comprises a first number of lines and a second number of lines, and said second portion of said first number of lines conveys second information in digital form at a second bit rate which is higher than said first bit rate.

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