US PATENT SUBCLASS 379 / 340
.~ Having line length compensation or equalization

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

338  DF  REPEATER (E.G., VOICE FREQUENCY) {9}
340.~ Having line length compensation or equalization

DEFINITION

Classification: 379/340

Having line length compensation or equalization:

(under subclass 338) Subject matter including structure to either modify an electrical parameter in a complementary relationship with a distance-related effect on a telephone signal, or to cause the signal transmitted through the line to be independent of frequency.

SEE OR SEARCH THIS CLASS, SUBCLASS:

394, for line equalization at a telephone substation.

398, for telephone line equalization.