Counter driven RAM engine control

Details Counter driven RAM engine control Counter driven RAM engine control

1989-02-15

1990-09-11

Lall, Parshotam S.

Boots, shoes, and leggings

36443105, 377 20, G06F 1520

Patent

active

049567810

ABSTRACT:
A system provides for controlling various vehicle functions by use of a free-running counter that drives the address lines of a random access memory which are shared with a control microprocessor. The counter represents a clock which directly maps addresses in the RAM to discrete moments in time. Each bit at each RAM memory location describes an on or off control command of a particular function. The microprocessor sets selected bits corresponding to the control function in two address locations corresponding to the on and off points in time so as to enable the generation of a pulse of exact direction for control.

REFERENCES:
patent: 4499544 (1985-02-01), Ohba et al.
patent: 4677558 (1987-06-01), Bohmler et al.
patent: 4751721 (1988-06-01), Wissell
patent: 4862369 (1989-08-01), Yakuwa et al.

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