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Object-oriented software architecture supporting input/output device independence

DC
  • US 5,502,839 A
  • Filed: 06/02/1989
  • Issued: 03/26/1996
  • Est. Priority Date: 01/05/1987
  • Status: Expired due to Term
First Claim
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1. A virtual input interface in a data processing system, said interface comprising:

  • means for accepting input from at least one physical device and for converting said physical device input into virtual input, said means comprising a virtual input manager process responsive to said at least one physical input device for generating a picture, said picture comprising one or more picture elements, each picture element comprising a plurality of device-independent data structures in a predetermined, standard data format, at least one of said data structures comprising a plurality of different data fields each containing information describing said picture element; and

    means responsive to said virtual input for performing processing operations upon said virtual input, said means comprising a console manager process for performing processing operations on said one or more picture elements.

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