US PATENT SUBCLASS 708 / 813
.~.~ Correlation or convolution

Current as of: June, 1999
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708 /   HD   ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING

800  DF  ELECTRICAL ANALOG CALCULATING COMPUTER {1}
801  DF  .~ Particular function performed {15}
813.~.~ Correlation or convolution {5}
814  DF  .~.~.~> Of multidimensional data
815  DF  .~.~.~> Acoustic
816  DF  .~.~.~> Optical
817  DF  .~.~.~> Magetic or electromagnetic
818  DF  .~.~.~> Having tapped delay line

DEFINITION

Classification: 708/813

Correlation or convolution:

(under subclass 801) Subject matter for evaluating cross-correlation, auto-correlation, cross-convolution or auto-convolution functions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

420+, for convolution by digital computer.

422+, for correlation by digital computer.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing,

76.12+, and indented subclass for correlators used in frequency spectrum analyzer systems.

342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation), 378+, for directive radio wave communications systems using correlation techniques.

367, Communications, Electrical: Acoustic Wave Systems and Devices,

38+, for correlators used in geophysical communications systems.