US PATENT SUBCLASS 379 / 386-- .~ Signal receiver (e.g., tone decoder)

US PATENT SUBCLASS 379 / 386
.~ Signal receiver (e.g., tone decoder)

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

350	DF	SUPERVISORY OR CONTROL LINE SIGNALLING {5}
386		.~ Signal receiver (e.g., tone decoder)

DEFINITION

Classification: 379/386

Signal receiver (e.g., tone decoder):

(under subclass 350) Subejct matter for receiving the supervisory or control line signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

351, for similar subject matter having spurious response protection.

372, for supervisory or control line signalling reception at a subscriber terminal.

SEE OR SEARCH CLASS

340, Communications: Electrical,

825.36+, for selective signal indicating.

375, Pulse or Digital Communications, 316+, for a pulse communication receiver.