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Subscriber television system

  • US 4,439,785 A
  • Filed: 11/17/1980
  • Issued: 03/27/1984
  • Est. Priority Date: 11/17/1980
  • Status: Expired due to Term
First Claim
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1. In a video recorder having a first transducer which moves with respect to a moving record medium to selectively record and play back video information, the record medium having a control region which is accessed for recording or playback by a second transducer wherein during playback signals recorded on the control region are utilized for synchronizing the relative movement between the first transducer and the second transducer and the record medium, the improvement comprising storing means external of said record medium for storing first coded indicia, and generating means responsive to said storing means and connected to the second transducer for generating second coded indicia to be recorded in the control region simultaneously with the recording of video information by the first transducer, provided the second coded indicia has a predetermined relationship with the stored first coded indicia.

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