US PATENT SUBCLASS 370 / 203
GENERALIZED ORTHOGONAL OR SPECIAL MATHEMATICAL TECHNIQUES

Current as of: June, 1999
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370 /   HD   MULTIPLEX COMMUNICATIONS

203GENERALIZED ORTHOGONAL OR SPECIAL MATHEMATICAL TECHNIQUES {5}
204  DF  .~> Plural diverse modulation techniques {1}
206  DF  .~> Quadrature carriers {1}
208  DF  .~> Particular set of orthogonal functions {1}
210  DF  .~> Fourier transform
211  DF  .~> Level multiplex

DEFINITION

Classification: 370/203

GENERALIZED ORTHOGONAL OR SPECIAL MATHEMATICAL TECHNIQUES:

(under the class definition) Subject matter wherein (a) a multiplexed channel is uniquely identified and separated from other multiplexed channels by members of a pair of mathematical functions having a sum of products or having an integral that is zero or sometimes one under specified conditions, or (b) particular mathematical processes are used to achieve multiplexing techniques.

(1) Note. This subclass does not include TDM or FDM techniques.

SEE OR SEARCH CLASS

708, Electrical Computers: Arithmetic Processing and Calculating,

400+, for orthogonal transformations.