Reset circuit for an automobile antenna control device

Details Reset circuit for an automobile antenna control device Reset circuit for an automobile antenna control device

1989-12-04

1990-07-17

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072964, 343901, 343903, 343715, 371 12, H01Q 132, H03K 1722, H03K 1720, H03K 1706

Patent

active

049423118

ABSTRACT:
An automobile antenna control device generating a reset pulse which starts the operation of a microcomputer. The pulse is generated when an automobile radio power source is switched from "off" to "on," or when the power source is switched from "on" to "off," so that a so-called runaway of the microcomputer can be prevented. The power source is connected to an input port of the microcomputer; the antenna is extended when the power source is "on," and is retracted when the power source is "off." The extending or retracting action of the antenna is stopped when the starter power source of the master key switch of the automobile is "on."

REFERENCES:
patent: 4307306 (1981-12-01), Kucharewski
patent: 4410991 (1983-10-01), Lenart
patent: 4528629 (1985-07-01), Breitling
patent: 4536667 (1985-08-01), Masuda
patent: 4670676 (1987-02-01), Nishitani
patent: 4733101 (1988-03-01), Graham et al.
patent: 4766335 (1988-08-01), Shiraishi et al.
patent: 4788454 (1988-11-01), Tanagawa et al.

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