US PATENT SUBCLASS 341 / 22
.~ Including keyboard or keypad

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

20  DF  BODILY ACTUATED CODE GENERATOR {3}
22.~ Including keyboard or keypad {11}
23  DF  .~.~> Variable key legends
24  DF  .~.~> With error prevention means (e.g., debounce, antichatter) {1}
26  DF  .~.~> With particular key scanning feature
27  DF  .~.~> With audible or tactile indicator
28  DF  .~.~> For pictorial or ideographic characters (e.g., design, chinese or japanese characters)
29  DF  .~.~> With variable pulse spacing or grouping
30  DF  .~.~> For numerical pulse type transmission
31  DF  .~.~> Photoelectric actuation
32  DF  .~.~> Magnetic or inductive actuation
33  DF  .~.~> Capacitive actuation
34  DF  .~.~> Pressure sensitive actuation

DEFINITION

Classification: 341/22

Including keyboard or keypad:

(under subclass 20) Subject matter including an array of manually actuated control elements, each of which is indicative of a code value (i.e., digits).

SEE OR SEARCH CLASS

84, Music, appropriate subclasses for a musical instrument having a keyboard.

200, Electricity: Circuit Makers and Breakers,

1+, for a multiple circuit control arrangement, such as a keyboard, absent circuitry to generate or transmit a code.

235, Registers,

7+, for a cash register having a keyboard; subclasses 54, 55 for a voting machine, having a keyboard; subclasses 59-61 for a mechanical register, having a keyboard; subclass 145 for a mechanical keyboard; subclasses 430+ for a record controlled device, having a keyboard.

340, Communications: Electrical, 825.56, for selective communications system having a multidigit encoder.

345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems,

168+, for a keyboard actuated display.

380, Cryptography,

52, for a cryptos:graphic transmitter having specified keyboard structure.

400, Typewriting Machines,

472+, for typewriter keyboard structure.

708, Electrical Computers: Arithmetic Processing and Calculating,

142+, for a keyboard input for a digital calculator.