Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1982-09-03
1987-01-06
Caldwell, Sr., John W.
Communications: electrical
Audible indication
Percussion-type sound producer
364807, 328158, H03K 1302
Patent
active
046350373
ABSTRACT:
An analog to digital converter comprising a data strobe terminal to which a signal is supplied upon the start of the converting operation, a delay circuit having a transistor with controlled conduction resistance and having its gate supplied with an analog input signal, an EX-OR gate having a first input terminal connected to the data strobe terminal and a second input terminal connected to the data strobe terminal through the delay circuit, an AND gate to which the output signal of the EX-OR gate and a clock pulse are supplied, and a counter for counting the output signal of the AND gate, whereby to produce the output of the counter as a digital signal.
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patent: 3725905 (1973-04-01), Tunzi
patent: 3801834 (1974-04-01), Lai
Hnatek, A User's Handbook of DIA and AIP Converters, 1976, pp. 246-247.
Greenfield, Practical Digital Design Using IC's, 1977, p. 144.
NIKKEI Electronics: "8-Bit MOS IC A-D Converter Using an Electric Charge Balanced Type Comparator", Thomas P. Ledfern et al. Jan. 21, 1980, pp. 159-169.
NIKKEI Electronics: "MOS Analog Circuit Technique Exhibiting Its Full Power for an Analog-Digital Hybrid LSI", K. Haruyama et al., Oct. 27, 1980, pp. 152-177.
Angotti Donna
Caldwell Sr. John W.
Tokyo Shibaura Denki Kabushiki Kaisha
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