Boots – shoes – and leggings
Patent
1980-04-01
1983-10-18
Thomas, James D.
Boots, shoes, and leggings
371 19, 371 62, 36443104, 36443111, 364300, 364550, G06F 946, G06F 1132, G06F 940, G06F 1130
Patent
active
044109385
ABSTRACT:
A watchdog-type fail-safe system monitors program execution by a computer used, e.g., in controlling operation of an automative vehicle engine. The system includes a control unit, with a microprocessor; and a memory, which stores program segments. These segments include a main routine for performing a background job (BGJ), and a plurality of interrupt routines for handling event generated interrupts. Completion of the BGJ causes transition of an emergency decision signal, provided by the control unit, to a first level. Initiation of a particular first interrupt routine causes transition of the decision signal to a second level. Abnormalities in program execution may result in non-transition of the decision signal. If there is non-transition of the decision signal for greater than a predetermined reference time period, a fault condition signal is generated. This may initiate various emergency procedures, e.g., stopping or resetting the computer, and visual or audio alarms. Detectable abnormalities include; non-return to the BGJ from any one of the interrupt routines; non-completion of the BGJ due to an excessive number of interrupts, as might occur due to unusally high engine speed; or non-advancement to processing of an interrupt, even though the control unit accepted a valid interrupt demand, as might occur due to temporary troubles in vibration susceptible signal lines between the computer and engine.
REFERENCES:
patent: 3312951 (1967-04-01), Hertz
patent: 3504347 (1970-03-01), Harmon et al.
patent: 3566368 (1971-02-01), De Blauw
patent: 3568157 (1971-03-01), Downing
patent: 3593299 (1971-04-01), Driscoll
patent: 3644936 (1972-02-01), Holtwick et al.
patent: 3749897 (1973-07-01), Hirvela
patent: 3795800 (1974-03-01), Nimmo
patent: 3795916 (1974-03-01), Wallace et al.
patent: 3919533 (1975-11-01), Einolf, Jr. et al.
patent: 3996567 (1976-12-01), Avsan
patent: 4044337 (1977-08-01), Hicks et al.
patent: 4045661 (1977-08-01), Antoine et al.
patent: 4072852 (1978-02-01), Hogan et al.
patent: 4118792 (1978-10-01), Struger et al.
patent: 4145735 (1979-03-01), Soga
patent: 4213178 (1980-07-01), Diez et al.
patent: 4218739 (1980-08-01), Negi et al.
patent: 4231106 (1980-10-01), Heap et al.
patent: 4255789 (1981-03-01), Hartford et al.
patent: 4270168 (1981-05-01), Murphy et al.
patent: 4275458 (1981-06-01), Khera
patent: 4282573 (1981-08-01), Imai et al.
patent: 4323966 (1982-04-01), Whiteside et al.
Multifunction Timer, M. N. Cianciosi et al., IBM Technical Disclosure Bulletin, vol. 19, No. 11, Apr. 1977, pp. 4366-4367.
"Prozebrechner", by Anke, Kaltenecker, and Oetker published by Oldenbourg, 1970, pp. 424-429.
IEEE Transactions on Computers, vol. C-24, No. 5, mai 1975, N.Y. (US) Alan M. USAS: "A Totally Self-Checking Checker Design for the Detection of Errors in Periodic Signals", pp. 483-489.
Nissan Motor Company Limited
Thomas James D.
Williams Archie E.
LandOfFree
Computer monitoring system for indicating abnormalities in execu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Computer monitoring system for indicating abnormalities in execu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer monitoring system for indicating abnormalities in execu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1292819