US PATENT SUBCLASS 348 / 490
.~.~ Field or frame sequential systems

Current as of: June, 1999
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348 /   HD   TELEVISION

469  DF  FORMAT {6}
488  DF  .~ Specified color signal format {4}
490.~.~ Field or frame sequential systems

DEFINITION

Classification: 348/490

Field or frame sequential systems:

(under subclass 488) Subject matter wherein signals are transmitted sequentially with a duration of at least one vertical period.

(1) Note. Dot sequential systems which select one color or luminance pixel followed by another color pixel etc., are classified in subclass 492.