US PATENT SUBCLASS 396 / 99
.~ With amplification control

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

89  DF  WITH EXPOSURE OBJECTIVE FOCUSING MEANS, FOCUSING AID, OR RANGEFINDING MEANS {28}
99.~ With amplification control

DEFINITION

Classification: 396/99

With amplification control:

(under subclass 89) Subject matter wherein the means for focusing the exposure objective includes a variable gain circuit.

SEE OR SEARCH CLASS

330, Amplifiers,

254, and 278+ for semiconductor amplifying device with gain control means.