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Advanced set top terminal with electronic mailbox for cable television delivery systems

  • US 7,571,457 B1
  • Filed: 09/22/1998
  • Issued: 08/04/2009
  • Est. Priority Date: 12/09/1992
  • Status: Expired due to Term
First Claim
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1. A hardware upgrade for enhancing the functionality of a set top terminal in a television program delivery system, each set top terminal adapted to receive electronic mail and having a microprocessor, the hardware upgrade comprising:

  • an interface for providing an electrical connection to the set top terminal, whereby digital data, including the electronic mail, is transferred from the set top terminal for processing and the processed electronic mail is passed to the set top terminal for display; and

    at least one microprocessor connected to said interface for processing the electronic mail to produce processed electronic mail, the microprocessor of the hardware upgrade capable of communicating with the microprocessor of the set top converter through the interface.

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