US PATENT SUBCLASS 345 / 53
.~.~.~.~ Specific waveform (e.g., square waveforms, sinusoidal)


Current as of: June, 1999
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345 /   HD   COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS

30  DF  PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT) {4}
33  DF  .~ Segmented display elements {7}
48  DF  .~.~ Light-controlling display elements {2}
50  DF  .~.~.~ Liquid crystal elements {3}
53.~.~.~.~ Specific waveform (e.g., square waveforms, sinusoidal) {1}
54  DF  .~.~.~.~.~> Field period polarity reversal


DEFINITION

Classification: 345/53

Specific waveform (e.g., square waveforms, sinusoidal):

(under subclass 50) Subject matter in which the selective electrical control includes means for selectively supplying particular waveforms to the display elements*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

94+, for waveform generation for a matrix liquid crystal display.

208+, for a waveform generator coupled to a generic display device.