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Digital audio tape recorder

  • US 5,235,475 A
  • Filed: 03/27/1991
  • Issued: 08/10/1993
  • Est. Priority Date: 03/27/1990
  • Status: Expired due to Fees
First Claim
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1. A searching apparatus of a digital audio tape recorder for taking out information by a plurality of rotary magnetic heads int he state in which a magnetic tape with digital data recorded thereon is travelling at a speed higher then the normal speed, said searching apparatus comprising:

  • a parity detecting means for detecting the parity of said digital data read out by said rotary magnetic heads, including;

    a judging means for judging whether or not said parity of said digital data which are read out by said plurality of rotary magnetic heads while tracing tracks on said magnetic tape in the state in which said magnetic tape is travelling at a high speed in the forward or backward direction is identified with a preset parity;

    a counting means for counting the number of identified parities of said digital data for each of said plurality of rotary magnetic heads; and

    a comparing means for comparing the numbers of identified parities between the digital data read out by said plurality of rotary magnetic heads;

    a processing means for processing said digital data in accordance with the result of the detection by said parity detecting means, including a digital data selecting means for judging the digital data to have a lower reliability, said digital data being read out by the rotary magnetic head which is proved by said comparing means to have supplied the digital data having a smaller number of identified parities.

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