Video switching and signal processing apparatus

  • US 8,769,561 B2
  • Filed: 02/11/2011
  • Issued: 07/01/2014
  • Est. Priority Date: 06/08/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of automatically switching from a video program to supplemental video information at a viewer location, the method comprising the steps of:

  • entering, by a user at a viewer location, information regarding a viewing preference;

    delivering a digital video program to the viewer location from a source of digital video programs;

    receiving the digital video program at the viewer location over a first communication channel, the program including a pointer to an alternate communication channel carrying supplemental information directly related to the program; and

    automatically switching, without human intervention, from the program received over the first communication channel to the supplemental information received over the alternate communication channel using the pointer and the viewing preference.

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