US PATENT SUBCLASS 178 / 18.08
.~.~.~.~ Having shield

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  DF  .~.~.~ Inductive {1}
18.08.~.~.~.~ Having shield

DEFINITION

Classification: 178/18.08

Having shield:

(under subclass 18.07) Subject matter wherein means are provided for reducing or eliminating extraneous electromagnetic energy from the digitizer pad.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69, for telegraph interference neutralizing.

SEE OR SEARCH CLASS

174, Electricity: Conductors and Insulators,

32+, for anti-inductive structures of conductors and insulators.

336, Inductor Devices,

84+, for inductor devices with shields. 379, Telephone,

416+, for an anti-inductive telephone system.