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Partitioned digital encoder and method for encoding bit groups in parallel

  • US 5,243,348 A
  • Filed: 04/27/1992
  • Issued: 09/07/1993
  • Est. Priority Date: 04/27/1992
  • Status: Expired due to Term
First Claim
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1. A digital encoder for encoding a plurality of digital bits from a first digital code format to a second digital code format, comprising:

  • an input terminal for receiving a digital input signal in the first digital code format, the digital input signal having a plurality of digital bits;

    a plurality of rank ordered encoder circuits, each of the rank ordered encoder circuits having an input coupled to the input terminal for receiving a predetermined portion of the digital bits corresponding to each of the rank ordered encoder circuits, and each encoder circuit providing an output in response to performing an encoding of the predetermined portion of the digital bits from the first digital code format to the second digital code format;

    bit determination means coupled to the input terminal for determining at least one most significant bit of the second digital code format by using at least one of the digital bits, the at least one of the digital bits not being used by the plurality of rank ordered encoder circuits; and

    means coupled to each of the plurality of rank ordered encoder circuits for selecting the output of one of the encoder circuits in response to the at least one most significant bit of the second digital code format as a remainder of the second digital code format.

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