Digital television with subscriber conference overlay

  • US 7,221,387 B2
  • Filed: 05/22/2003
  • Issued: 05/22/2007
  • Est. Priority Date: 06/10/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. Wireless mobile subscriber unit for real-time collaborative communication comprising:

  • an embedded processor;

    a user media interface; and

    a mobile communication interface;

    wherein the user media interface comprises a microphone and a digital video or image camera for sending respectively a first audio signal and a first image signal, and a speaker and a display for receiving respectively a second audio signal and a second image signal;

    the first and second audio and image signals being transmitted or received via wireless radio-frequency communication through the mobile communication interface;

    the embedded processor enabling two-way image or audio communication for conferencing between multiple subscriber units through the user media interface while simultaneously, prior or after accessing a one-way broadcast or transmission of a common program or data stream through the mobile communication interface, wherein a controller centrally manages combined one- and two-way services of conferencing coupled with broadcast or transmission by authorizing or restricting access to the program or data stream by one or more subscriber units during, after or prior the conference, thereby enabling collaborative access by a virtual audience to integrated conferencing and broadcast or transmission services, wherein the controller functionally overlays;

    (a) the common program or data stream that is wirelessly accessed by a plurality of the subscriber units, with (b) the conference authorized directly between privately-restricted conferencing subscriber units.

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