US PATENT SUBCLASS 348 / 367
.~.~.~ Periodic shuttering

Current as of: June, 1999
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348 /   HD   TELEVISION

207  DF  CAMERA, SYSTEM AND DETAIL {19}
335  DF  .~ Optics {12}
362  DF  .~.~ Exposure control {2}
367.~.~.~ Periodic shuttering {1}
368  DF  .~.~.~.~> Rotary

DEFINITION

Classification: 348/367

Periodic shuttering:

(under subclass 362) Subject matter including an element for

alternately blocking and passing light to the image sensor at every field or frame.

SEE OR SEARCH THIS CLASS, SUBCLASS:

296, for electronic shuttering.