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INFORMATION SELECTING AND DISPLAYING APPARATUS

  • US 3,860,745 A
  • Filed: 03/12/1971
  • Issued: 01/14/1975
  • Est. Priority Date: 03/24/1970
  • Status: Expired due to Term
First Claim
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1. An information selecting and displaying apparatus comprising:

  • transmitter means for repeatedly sending out a series of signals carrying a multiplicity of different pieces of display information, said series of signals including a start signal inserted at the start thereof, each of said signals carrying a piece of display information including a display information signal part and a plurality of number signal parts representing the numbers of predetermined ones of said series of signals carrying predetermined ones of said multiplicity of pieces of display information and including a synchronizing signal;

    receiver means for receiving said series of signals and separating said start signal and said synchronizing signals from said series of signals;

    counter means, connected to said receiver means, for counting the number of said synchronizing signals appearing after said start signal;

    first gate means, connected to said receiver means, for selecting a signal carrying a desired piece of display information from among said series of signals;

    separator means, connected to said first gate means, for separating said number signal parts from said signal selected by said first gate means;

    first register means, connected to said separator means, for storing said numbers represented by said number signal parts;

    displaying means, connected to said separator means, for displaying the display information signal part contained in said selected signal;

    answering means for allowing alternative answers to be given to said displayed information on said displaying means;

    second gate means, connected to said first register means and said answering means, for selecting one of said numbers in said first register means in accordance with an answer by said answering means;

    second register means, connected to said second gate means, for storing said number selected by said second gate means; and

    comparator means, connected to said counter means and said second register means, for comparing the number in said counter means with the number in said second register means to produce a coincident signal to be applied to said first gate means for operating said first gate means.

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