US PATENT SUBCLASS 708 / 318
.~.~.~ Lattice

Current as of: June, 1999
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708 /   HD   ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING

100  DF  ELECTRICAL DIGITAL CALCULATING COMPUTER {10}
200  DF  .~ Particular function performed {26}
300  DF  .~.~ Filtering {20}
318.~.~.~ Lattice

DEFINITION

Classification: 708/318

Lattice:

(under subclass 300) Subject matter in which the filter has four computational or delay elements connected in series to form a closed circuit with two nonadjacent ports serving as the input terminals with the other two ports serving as output terminals.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks,

169, for analog lattice filters.