US PATENT SUBCLASS 178 / 19.03
.~.~.~ Capacitive or inductive stylus

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}
19.01  DF  .~.~ Writing digitizer stylus {5}
19.03.~.~.~ Capacitive or inductive stylus

DEFINITION

Classification: 178/19.03

Capacitive or inductive stylus:

(under subclass 19.01) Subject matter wherein the pointing device has means for capacitively or inductively coupling with the circuitry present in the sensing surface of the tablet.

SEE OR SEARCH THIS CLASS, SUBCLASS:

18.06, for a capacitive writing digitizer pad.

18.07+, for an inductive writing digitizer pad.

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

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

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks, 24+, for coupling networks.

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

179, for a combination of a display device and a stylus.