Process control apparatus

Details Process control apparatus Process control apparatus

1975-06-16

1977-06-28

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92TC, 235 92R, 235 92CT, 23515021, H03K 2130

Patent

active

040327558

ABSTRACT:
A process control apparatus, for example for internal combustion engine fuel injection control, includes a digital memory which produces an n-bit digital output in accordance with two independently variable input signals. The m most significant bits are transferred to a counter which is clocked to give a pulse length output. The n-m least significant bits control a logic circuit which is used to program another counter which is used to introduce an added delay to each output pulse. This arrangement enables higher resolution to be obtained using a limited size main counter.

REFERENCES:
patent: 3835819 (1974-09-01), Anderson
patent: 3838397 (1974-09-01), Watson et al.

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