US PATENT SUBCLASS 396 / FOR 725
.~ Having log transformation circuit (354/425)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


396 /   HD   PHOTOGRAPHY

FOR 710  DF  AUTOMATIC EXPOSURE CONTROL SYSTEM OR DEVICE (354/410) {8}
FOR 725.~ Having log transformation circuit (354/425) {3}
FOR 726  DF  .~.~> Digital (354/426)
FOR 727  DF  .~.~> Having log expansion (354/427)
FOR 728  DF  .~.~> Having temperature compensation circuit (354/428)

DEFINITION

Classification: 396/FOR.725

Having log transformation circuit: (354/425)

Subject matter under subclass FOR 710 in which the voltage or current from a light responsive means is transformed to a natural log function.