US PATENT SUBCLASS 708 / 531
.~.~.~.~ Parity check

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}
490  DF  .~.~ Arithmetical operation {27}
530  DF  .~.~.~ Error detection or correction {4}
531.~.~.~.~ Parity check

DEFINITION

Classification: 708/531

Parity check:

(under subclass 530) Subject matter wherein the error detection or correction utilizes a parity bit.

SEE OR SEARCH CLASS

340, Communications: Electrical,

146.2, for detecting error in information content of a group of signals by parity check.

714, Error Detection/Correction and Fault Detection/Recovery, appropriate subclass for systems which test for malfunction in nonarithmetical operations.