US PATENT SUBCLASS 178 / 18.07
.~.~.~ Inductive

Current as of: June, 1999
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178 /   HD   TELEGRAPHY

2 R  DF  SYSTEMS {21}
18.01  DF  .~ Position coordinate determination for writing (e.g., writing digitizer pad, stylus, or circuitry) {4}
18.03  DF  .~.~ Writing digitizer pad {6}
18.07.~.~.~ Inductive {1}
18.08  DF  .~.~.~.~> Having shield

DEFINITION

Classification: 178/18.07

Inductive:

(under subclass 18.03) Subject matter wherein position coordinates are determined by a property (e. g., dimensions, material, temperature, or structure of connection) of a magnetic field generating coil that is included in the sensing surface of the tablet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19.03, for an inductive or a capacitive writing digitizer stylus.

43, for telegraphing by induction on neighboring lines, etc.

64, for applications of induction coils and transformers to telegraphy.

,

SEE OR SEARCH CLASS 246, Railways Switches and Signals,

8, for inductive communication signals (telegraphy or telephony) between trains and the dispatcher or other stations.

341, Coded Data Generation or Conversion,

15, for inductive responsive digital pattern reading-type converters and subclass 32 for bodily actuated code generators including a keyboard or keypad with magnetic or inductive sensors.