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Article: California Inventors Develop Binary Number Sequence Cumulative Parity Calculating Circuit
- Article from:
- US Fed News Service, Including US State News
- Article date:
- October 24, 2007
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ALEXANDRIA, Va., Oct. 24 -- Ricky Keang-Po Ho of San Jose, Calif., and Joseph M. Kahn of San Carlos, Calif., have developed an optical duobinary transmission system.
According to the U.S. Patent & Trademark Office: "A circuit using modular based parallel processing calculates the cumulative parity of a binary number input sequence. The circuit is used, for example, to implement a precoder for an optical duobinary transmission system."
An abstract of the invention, released by the Patent Office, said: "The design permits a relatively low-speed circuit to be used as the precoder before a time-division multiplexer. The parallel circuit can be scalable to process a very large number of sets ...