×

Interactive system with state manager subsystem

  • US 4,905,181 A
  • Filed: 04/20/1987
  • Issued: 02/27/1990
  • Est. Priority Date: 04/20/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. An interactive system comprising:

  • (1) a user interaction subsystem for controlling an interactive device belonging to the interactive system, the user interaction subsystem receiving a user-produced input from the interactive device and a user-destined input and producing a user-perceivable output of output to the interactive device and a system-destined output;

    ((2) a data transformation subsystem which receives a problem input and produces a result output; and

    (3) a state manager subsystem for managing transitions between states of the interactive system, the state manager subsystem receiving state manager inputs including the system-destined output and the result output and producing state manager outputs including the problem input and the user-destined input and the state manager subsystem including(a) expected state describing means for describing a set of expected states of the states of the interactive system and the transitions therebetween,(b) active state describing means for describing a current set of active states of the states of the interactive system, and(c) state management means responsive to a state manager input, to the expected state describing means and to the active state describing means for producing the transitions, each transition being produced as required by the current set of active states, the state manager input, and the expected states, producing a new current set of active states, and producing a state manager output in connection with certain of the transitions.

View all claims
  • 8 Assignments
Timeline View
Assignment View
    ×
    ×