1979-09-17
1981-07-21
Smith, Jerry
Excavating
324 73R, 364580, G06F 1100
Patent
active
042802202
ABSTRACT:
An electronic system for testing an electronic device responsive to a data clock signal and to a serial input data signal synchronous with the data clock signal comprises an oscillator for generating oscillator pulses, a data clock signal generator responsive to oscillator pulses for generating the data clock signal, timing circuitry for counting oscillator pulses and for generating at least one input select signal indicative of the number of oscillator pulses counted, and multiplexing circuitry for receiving at least two parallel input data signals and for sequentially selecting the parallel input data signals in response to the input select signal or signals to generate the serial input data signal.
REFERENCES:
patent: 3787669 (1974-01-01), Muehldorf
patent: 3849726 (1974-11-01), Justice
patent: 4013951 (1977-03-01), Ezoe et al.
patent: 4139147 (1979-02-01), Franke
Fairchild Camera & Instrument Corp.
Meetin Ronald J.
Pollock Michael J.
Smith Jerry
Winters Paul J.
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