US PATENT SUBCLASS 358 / 489
.~.~.~ Helical scanning pattern

Current as of: June, 1999
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358 /   HD   FACSIMILE AND STATIC PRESENTATION PROCESSING

400  DF  FACSIMILE {17}
471  DF  .~ Picture signal generator {3}
474  DF  .~.~ Scanning {15}
489.~.~.~ Helical scanning pattern {2}
490  DF  .~.~.~.~> Transparent drum {1}
492  DF  .~.~.~.~> Specified sheet clamp

DEFINITION

Classification: 358/489

Helical scanning pattern:

(under subclass 474) Subject matter wherein the surface assumes a cylindrical shape and the scanning mechanism describes a helical pattern about the surface as the scanning proceeds.

SEE OR SEARCH CLASS

346, Recorders,

138, for drum recorders.