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System and method for saving state information in an interactive television system

  • US 5,835,717 A
  • Filed: 12/13/1995
  • Issued: 11/10/1998
  • Est. Priority Date: 12/13/1995
  • Status: Expired due to Fees
First Claim
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1. In an interactive television system, a settop computer, configured to save and restore a plurality of states, comprising:

  • a viewer application, said viewer application comprising at least one state;

    an application manager for causing said viewer application to execute; and

    a return state stack configured to store a plurality of return states, wherein said application manager is configured tosave a return state by pushing said return state onto a top of said return state stack upon user exit from a state, andcause said viewer application to restore said state in response to a user request by popping said return state from said top of said return state stack,wherein if a plurality of return states are stored on said return state stack, each additional user request will pop an additional return state from said top of said return state stack.

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