Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1984-12-10
1987-06-30
Sloyan, T. J.
Communications: electrical
Audible indication
Percussion-type sound producer
340347AD, 340347M, H03M 100
Patent
active
046774220
ABSTRACT:
A multiple input signal high-speed analog-digital converter circuit for digitizing, by means of an A/D converter, an output signal from a multiplexer which successively delivers multiple input signals applied thereto. Two sample/hold circuits which receive the output signal from the multiplexer repeatedly sample and hold the signal, and a changeover switch keeps one of the sample/hold circuits on hold while the other sample/hold circuit samples the output signal from the multiplexer. While one of the sample/hold circuits is holding the signal, the other sample/hold circuit is sampling another signal so that the A/D conversion time of multiple input signals is capable of being reduced by the sampling time.
REFERENCES:
patent: 3597761 (1971-08-01), Fraschilla et al.
patent: 3732376 (1973-05-01), Chatelon
patent: 4232302 (1980-11-01), Jagatich
patent: 4353057 (1982-10-01), Bernet et al.
The Engineering Staff of Analog Devices, Inc., Analog-Digital Conversion Handbook, 6/1972, pp. I-32 to I-37; III-73 to III-86.
Zuch, Pick Sample-Holds by Accuracy and Speed . . . , Electronic Design 26, 20 Dec. 1978, pp. 84-90.
Kabushiki Kaisha Ishida Koki Seisakusho
Sloyan T. J.
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