US PATENT SUBCLASS 341 / 173
CODE GENERATOR OR TRANSMITTER

Current as of: June, 1999
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341 /   HD   CODED DATA GENERATION OR CONVERSION

173CODE GENERATOR OR TRANSMITTER {8}
174  DF  .~> Plural transmitters
175  DF  .~> With code display at transmitter
176  DF  .~> Transmitter for remote control signal
177  DF  .~> Producing different pulse frequencies
178  DF  .~> With variable pulse spacing or grouping {5}
184  DF  .~> Numerical pulse type {6}
191  DF  .~> With gaseous or space discharge device feature
192  DF  .~> With rotary distributor

DEFINITION

Classification: 341/173

Code generator or transmitter:

(under the class definition) Subject matter for originating or emitting a coded set of pulses.

(1) Note. Included in this and indented subclasses are wireless transmitters.

SEE OR SEARCH CLASS

178, Telegraphy,

79+, for a telegraph transmitter; subclasses 101+ for a telegraph key.

200, Electricity: Circuit Makers and Breakers, for a switch or switch actuator, absent circuitry.

340, Communications: Electrical,

825+, for a selective code transmitter and receiver combined, or a selective code receiver.

375, Pulse or Digital Communications,

295+, for transmission of a digital signal having arbitrary message content.

379, Telephonic Communications,

353+, particularly subclasses 368 and 369 for a manually actuated telephone signalling device (e.g., keypad or dial).

380, Cryptography, appropriate subclasses for a cryptos:graphic code transmitter, particularly

21, and 44+, respectively, for transmission, and generation, of a cryptos:graphic key code.