US PATENT SUBCLASS 379 / 401
.~.~ Voltage boosting circuit

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

399  DF  SUBSCRIBER LINE OR TRANSMISSION LINE INTERFACE {5}
400  DF  .~ For line length compensation {1}
401.~.~ Voltage boosting circuit

DEFINITION

Classification: 379/401

Voltage boosting circuit:

(under subclass 400) Subject matter which increases the magnitude of a voltage source in accordance with the length of a related telephone line.