Boots – shoes – and leggings
Patent
1978-11-27
1980-11-25
Gruber, Felix D.
Boots, shoes, and leggings
340171PF, 364900, 123417, G05B 1500, F02D 3700, H03K 3017
Patent
active
042362130
ABSTRACT:
A microprocessor based engine control system including an engine control unit for producing a plurality of pulse width modulated output signals of programmable frequency. The pulse width and frequency of each output is contained in a control word provided to the engine control unit. The control word contains a pulse width number and a frequency code. The control unit includes a free-running counter and logic means which switches the output signal to one level when the number of stages of the counter defined by the frequency code are all zero and switches the output signal to a second level when the content of the aforementioned number of counter stages is greater than the pulse width modulated number.
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Duke Albert F.
General Motors Corporation
Gruber Felix D.
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