Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1980-03-31
1982-11-02
Miller, Charles D.
Communications: electrical
Audible indication
Percussion-type sound producer
340347CC, H03K 1320
Patent
active
043575994
ABSTRACT:
An analog-digital converter designed to provide digital data by converting analog input voltage signals into pulse signals by a voltage-frequency converter, and counting said pulse signals by a counter, the improvement being that the A-D converter comprises a sequence controller which selectively supplies low-level or high-level input voltage signals to the A-D converter before analog input signals being measured are received therein.
REFERENCES:
patent: 3633202 (1972-01-01), Kuckein
patent: 3668690 (1972-06-01), Ormond
Miller Charles D.
Tokyo Shibaura Electric Co. Ltd.
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