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Data read-out system and apparatus useful for angular measurements

  • US 4,101,882 A
  • Filed: 05/28/1976
  • Issued: 07/18/1978
  • Est. Priority Date: 05/28/1976
  • Status: Expired due to Term
First Claim
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1. In a system having an input of a group of least significant bits and one or more groups of higher significant bits which change state at one transition point of one of the least significant bits, apparatus for producing output date correlated to the system input free of transition ambiguities comprising:

  • system output means;

    means for coupling information correlated to the least significant bits to said system output means;

    means for storing information correlated to the higher significant bits and for transferring said stored information to said system output means;

    control circuit means responsive to the status of the least significant bits for controlling the information input into said storage means, said control circuit means generating a control signal in the presence of a first zone around the transition point and a transition reflecting signal in the presence of the transition point, said control circuit generating a load signal in the presence of a second zone removed from said first zone, said load signal operative to input higher significant bit correlated information into said storage means; and

    commutation circuit means associated with said control circuit means and responsive to said control signal for disabling said storage means from receiving said higher significant bit correlated information and responsive to said transition reflecting signal for altering the information in said storage means.

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