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Information recording apparatus which eliminates unnecessary data before recording

  • US 5,544,176 A
  • Filed: 05/31/1994
  • Issued: 08/06/1996
  • Est. Priority Date: 02/13/1990
  • Status: Expired due to Term
First Claim
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1. An information recording and reproducing apparatus for receiving frame information that includes (i) a predetermined number of data packets, (ii) frame synchronizing information that includes synchronizing information for synchronizing frames, and (iii) frame-control information for indicating an arrangement of the data in each data packet, each of said data packets including (i) main information, and (ii) error-check code information for correcting errors in the main information, said apparatus comprising:

  • checking means for correcting errors in the main information based upon the error-check code information;

    eliminating means for eliminating (i) the error-check code information from data packets corrected by said checking means and (ii) at least a portion of the frame synchronizing information from the frame information;

    recording means for recording the information, which is obtained after the eliminating by said eliminating means, on a recording medium;

    reading means for reading, from the recording medium, information recorded by said recording means;

    information generating means for generating information corresponding to the error-check code information and frame synchronizing information eliminated by said eliminating means; and

    output means for outputting information that has been read by said reading means and information that has been generated by said information generating means, the output information corresponding to the received frame information.

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