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Digital transmitter with data stream transformation circuitry

  • US 20060280259A1
  • Filed: 08/25/2005
  • Published: 12/14/2006
  • Est. Priority Date: 06/10/2005
  • Status: Active Grant
First Claim
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1. A transmitter, comprising:

  • a first driver and a second driver, each driver having an output for a respective analog signal;

    a summation circuit for combining respective analog signals from the first driver and the second driver;

    a data selection circuit to process at least two data streams, each data stream corresponding to a time sequence of digital data symbols, wherein the data selection circuit selectively couples at least one of the data streams to at least one of the drivers during each time interval of a sequence of time intervals, thereby applying a linear transformation to the data streams; and

    a finite state machine to control the data selection circuit during each time interval of the sequence of time intervals in accordance with a programmable code word.

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