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Method and apparatus for upgrading features and functions of a set top box in the field

  • US 6,154,633 A
  • Filed: 12/31/1997
  • Issued: 11/28/2000
  • Est. Priority Date: 10/22/1997
  • Status: Expired due to Term
First Claim
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1. An upgradeable set top box comprising:

  • an input terminal for receiving an audiovisual signal;

    an output terminal; and

    a port having a connector for receiving a function circuit module therein and connecting a function circuit of said module between said input terminal and said output terminal,wherein said function circuit receives said audiovisual signal from said input terminal, processes said audiovisual signal and outputs a processed audiovisual signal; and

    further wherein internal function circuitry of said set-top terminal is deactivated or bypassed when said function circuit module is present in said port.

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