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Parallel operation linear feedback shift register

  • US 5,412,665 A
  • Filed: 01/10/1992
  • Issued: 05/02/1995
  • Est. Priority Date: 01/10/1992
  • Status: Expired due to Fees
First Claim
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1. A Linear Feedback Shift Register (LFSR) for generating random test patterns, comprising:

  • register means for storing data, said register means comprising a plurality of latches, wherein at least one of said latches is driven by a clock;

    a plurality of sequentially connected, functionally equivalent combinatorial logic networks, one of said networks driving said register means, said register means driving a second of said networks to provide a feedback path;

    parallel driving means for driving a parallel pattern at an output bus responsive to psuedo-random patterns generated by said networks; and

    configuration means inputted to said combinatorial logic networks for reconfiguring said combinatorial logic network that generates said pseudo-random patterns.

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