US PATENT SUBCLASS 123 / FOR 111
.~ Digital electronic control (123/416)

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

FOR 101  DF  SPARK IGNITION TIMING CONTROL (123/406) {16}
FOR 111.~ Digital electronic control (123/416) {1}
FOR 112  DF  .~.~> Having microprocessor (123/417)

DEFINITION

Classification: 123/FOR.111

Digital electronic control:

Subject matter wherein the timing control utilizes a digital memory, digital counting operation, or other digital decision making circuit.