×

Error correction code dynamic range control system

  • US 5,267,241 A
  • Filed: 03/04/1993
  • Issued: 11/30/1993
  • Est. Priority Date: 04/04/1990
  • Status: Expired due to Fees
First Claim
Patent Images

1. In an electronic data storage device controller for reading a plurality of sectors from a data storage device, each of said sectors having a pre-data field, a data field, and a redundancy field, and wherein said device controller provides correction information for said pre-data field, said data field, and said redundancy field, dynamic range control apparatus for indicating which of said correction information is only for said data field, said apparatus comprising:

  • means for determining a count of a number of bytes in each of said fields, said means providing a pre-data count, a data count, and a redundancy count;

    counter means, responsive to a byte count signal, for decrementing each of said counts;

    range indicator means responsive to said counter means for indicating which of said correction information is only for said data field, wherein correction of said pre-data field and said redundancy field is prevented.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×