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Class Information
Number: 714/735
Name: Error detection/correction and fault detection/recovery > Pulse or data error handling > Digital logic testing > Device response compared to input pattern
Description: Subject matter in which the operational condition of a system or device is determined by comparing the system or device response to a test signal input pattern.

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
4471484 Self verifying logic system Sep. 11, 1984
4412280 Complementary commands in fail-operational, fail-safe multi-computer control system Oct. 25, 1983
4399405 Test facility Aug. 16, 1983
4344155 Method of and apparatus for inscribing a control character in a memory Aug. 10, 1982
4340856 Apparatus for testing an analog/digital converter Jul. 20, 1982
4329640 Very large scale integrated circuit May. 11, 1982
4319355 Method of and apparatus for testing a memory matrix control character Mar. 9, 1982
4309767 Monitor system for a digital signal Jan. 5, 1982
4298982 Fault-tolerant interface circuit for parallel digital bus Nov. 3, 1981
4290137 Apparatus and method of testing CML circuits Sep. 15, 1981
4279032 Channel bank loop-around test arrangement and method Jul. 14, 1981
4275464 Universal self-diagnosing appliance control Jun. 23, 1981
4271513 Method and apparatus for carrying out loopback test Jun. 2, 1981
4267463 Digital integrated circuit May. 12, 1981
4266294 Copy reproduction machine with controller self check system May. 5, 1981
4266293 Protection control unit for a TDM system May. 5, 1981
4257031 Digital remote control system Mar. 17, 1981
4246442 Method and device for confirming correct connection between data terminals in data communication system using telephone network Jan. 20, 1981
4233668 Method and apparatus for testing a magnetic bubble memory Nov. 11, 1980
4227244 Closed loop address Oct. 7, 1980
4203543 Pattern generation system May. 20, 1980
4195770 Test generator for random access memories Apr. 1, 1980
4155087 Radar receiver for detecting coded information buried in radar echoes May. 15, 1979
4091325 Verification technique for checking wrapped wire electronic boards May. 23, 1978
4042832 Logic board interlock indication apparatus Aug. 16, 1977
4041384 Circuit system for adjusting the input of a connected-up logic circuit Aug. 9, 1977
4013951 Circuit testing apparatus Mar. 22, 1977
4009436 Latch strobe generator circuit Feb. 22, 1977
4004222 Test system for semiconductor memory cell Jan. 18, 1977
4002974 Method and apparatus for testing circuits Jan. 11, 1977
3988670 Automatic testing of digital logic systems Oct. 26, 1976
3944975 Signal checking system Mar. 16, 1976
3940601 Apparatus for locating faults in a working storage Feb. 24, 1976

1 2 3 4 5 6 7 8

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