Sensor input/output system with continuous compass interface

Details Sensor input/output system with continuous compass interface Sensor input/output system with continuous compass interface

1988-09-02

1990-05-08

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

342 41, 364443, G01S 1386, G01C 2100

Patent

active

049242334

ABSTRACT:
A sensor input/output system in a main radar system maintains continuous power to the compass interface when the main radar system is shut down. A single level of interrupt handlers is utilized without interrupt nesting or control by task executive software. The sensor input/output system is functionally partitioned such that all of the service required by an interrupt is continuously provided until the service is completed. A digital processor for providing the interrupt servicing and control and PROM firmware for storing the interrupt handlers also have backup power continuously applied. Since the processor compass interrupt handler and compass interface are continuously powered, heading synchronization is maintained by the main radar system during power down conditions.

REFERENCES:
patent: 3786505 (1974-01-01), Rennie
patent: 3981008 (1976-09-01), Mann
patent: 4340936 (1982-07-01), Mounce
patent: 4428053 (1984-01-01), Tol
patent: 4513378 (1985-04-01), Antkowiak

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