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Class Information
Number: 714/800
Name: Error detection/correction and fault detection/recovery > Pulse or data error handling > Error/fault detection technique > Parity bit
Description: Subject matter in which a redundant bit is added to a block of data bits.










Sub-classes under this class:

Class Number Class Name Patents
714/802 Even and odd parity 76
714/801 Parity generator or checker circuit detail 450
714/803 Parity prediction 49
714/804 Plural dimension parity check 161
714/805 Storage accessing (e.g., address parity check) 432


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
4636937 Data input/output unit Jan. 13, 1987
4606028 Digital transmission system Aug. 12, 1986
4606057 Arrangement for checking the counting function of counters Aug. 12, 1986
4598404 Data format arrangement for communication between the peripheral processors of a telecommunications switching network Jul. 1, 1986
4596014 I/O rack addressing error detection for process control Jun. 17, 1986
4567587 Multiplex equipment monitoring apparatus Jan. 28, 1986
4567595 Multiline error detection circuit Jan. 28, 1986
4556958 Device for single line bidirectional data transmission between an intelligent card's microprocessor and a second processor Dec. 3, 1985
4556978 Error checked high speed shift matrix Dec. 3, 1985
4511975 Numerical control machine tool Apr. 16, 1985
4471480 Programmable controller for a TDM digital multiplexer-demultiplexer combination Sep. 11, 1984
4429391 Fault and error detection arrangement Jan. 31, 1984
4417339 Fault tolerant error correction circuit Nov. 22, 1983
4414669 Self-testing pipeline processors Nov. 8, 1983
4410984 Diagnostic testing of the data path in a microprogrammed data processor Oct. 18, 1983
4393493 Automatic protection apparatus for span lines employed in high speed digital systems Jul. 12, 1983
4383317 Shaft angle encoder having a circuit for synthesizing a skipped track output signal May. 10, 1983
4347603 System for exchanging encoded messages between stations Aug. 31, 1982
4334126 Control circuit for concurrently monitoring and controlling functions and frequency modulating status information in a digital data network Jun. 8, 1982
4326291 Error detection system Apr. 20, 1982
4321704 Parity checking circuitry for use in multi-bit cell PCM recording and reproducing apparatus Mar. 23, 1982
4320512 Monitored digital system Mar. 16, 1982
4291408 System for monitoring bit errors Sep. 22, 1981
4224681 Parity processing in arithmetic operations Sep. 23, 1980
4223326 Method and device for reducing the probability of loss of a character in a digital transmission employing biphase coding Sep. 16, 1980
4197523 Digital telecommunication switching systems Apr. 8, 1980
4182988 PCM channel monitoring system for detecting errors using single parity bit Jan. 8, 1980
4155070 Code-converter with preservation of parity May. 15, 1979
4103288 Method for data transmission and a system for carrying out the method Jul. 25, 1978
4092522 5-Bit counter/shift register utilizing current mode logic May. 30, 1978
4078225 Arrangement and a method for error detection in digital transmission systems Mar. 7, 1978
4018991 Multifrequency signal parity detector Apr. 19, 1977
4012717 Bi-processor data handling system including automatic control of exchanges with external equipment and automatically activated maintenance operation Mar. 15, 1977
3988714 Computer input/output apparatus for providing notification of and distinguishing among various kinds of errors Oct. 26, 1976
3975712 Asynchronous communication interface adaptor Aug. 17, 1976
3970989 Data transfer error check Jul. 20, 1976

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