US PATENT SUBCLASS 708 / 300
.~.~ Filtering

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

100  DF  ELECTRICAL DIGITAL CALCULATING COMPUTER {10}
200  DF  .~ Particular function performed {26}
300.~.~ Filtering {20}
301  DF  .~.~.~> Tapped delay line
303  DF  .~.~.~> Microprocessor
304  DF  .~.~.~> Nonlinear (e.g., median, etc.)
305  DF  .~.~.~> Initialization
306  DF  .~.~.~> Finite arithmetic effect
307  DF  .~.~.~> Delta/differential coded
308  DF  .~.~.~> Multidimensional data
309  DF  .~.~.~> Frequency measurement
310  DF  .~.~.~> Coherent
311  DF  .~.~.~> Frequency detection {1}
313  DF  .~.~.~> Decimation/interpolation
314  DF  .~.~.~> Matched filter type
315  DF  .~.~.~> By convolution
316  DF  .~.~.~> Having multiplexing
317  DF  .~.~.~> Wave
318  DF  .~.~.~> Lattice
319  DF  .~.~.~> Transversal
320  DF  .~.~.~> Recursive
321  DF  .~.~.~> Nontime domain
322  DF  .~.~.~> Adaptive {1}

DEFINITION

Classification: 708/300

Filtering:

(under subclass 200) Subject matter wherein a computational process or algorithm separates data, signals, or materials in accordance with specified criteria.

SEE OR SEARCH THIS CLASS, SUBCLASS:

819, for analog computer filtering.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

551+, for miscellaneous unwanted signal suppression utilizing an active filter circuit not performing an arithmetic calculation.

702, Data Processing: Measuring, Calibrating, or Testing,

190+, for signal extraction or separation in measured signal processing.