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Memory card handling for enhancing interactive television services

  • US 7,908,636 B2
  • Filed: 07/12/2007
  • Issued: 03/15/2011
  • Est. Priority Date: 01/12/2005
  • Status: Expired due to Fees
First Claim
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1. An interactive television system comprising:

  • means for receiving television signals;

    means for receiving data for implementing an interactive television service, the interactive television service data comprising content items;

    means for storing the content items, including content version information therefor, on a removable, non-volatile memory; and

    means for automatically copying to the removable memory information in an internal memory, so that the removable memory acts as a backup,wherein the system is adapted to download time, date and service version information from a broadcast source, read the content version information of the content items stored on the removable memory to determine whether the content items are expired, and restore the content items from the removable memory to the internal memory if said content items are not expired.

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