(under subclass 3.1) Subject matter wherein some functions of a modulated carrier wave source or receiver are supervised or controlled from a remote site.
(1) Note. Because of a search note in subclass 5.1, only disclosures of more than mere control in the second directions should be cross-referenced thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8, for repeater system with failure compensation.
26.1, for unauthorized use prevention systems.
31.1+, for systems with additional selectively responsive means.
68+, for control of communication system.
88, for transceiver controlling a separate transceiver or receiver. 92, for remote control of a transmitter.
132, for plural receivers of which one controls another.
352+, for remote control of a receiver.
SEE OR SEARCH CLASS
340, Communications: Electrical,
825.69, and 825.72 for remote control over a radio link.
380, Cryptography, appropriate subclasses for a cryptos:graphic system to prevent unauthorized use of a signal.
