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Method for providing privately viewable data in a publically viewable display

  • US 6,529,209 B1
  • Filed: 01/12/2000
  • Issued: 03/04/2003
  • Est. Priority Date: 01/12/2000
  • Status: Expired due to Fees
First Claim
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1. A method for providing privately viewable data in a publically viewable display comprising the steps of:

  • generating a sequencing pattern;

    generating a data signal, said data signal comprising private data frames and masking data frames interspersed according to said sequencing pattern, said step of generating a data signal comprising the steps of inserting masking data in said data signal, and, for private data forming a complete character or image, repeatedly inserting portions of said complete character or image when indicated by sync pulses in said sequencing pattern until all portions of said complete character or image are inserted in said data signal;

    providing said data signal to said publically viewable display; and

    , opening and closing shutters in a set of active glasses in accordance with said sequencing pattern, whereby a user viewing said display with said active glasses can view said private data and unauthorized viewers without said active glasses can view only said private data obscured by said masking data.

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