Charge-coupled analog-to-digital converter

Communications: electrical – Audible indication – Percussion-type sound producer

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307221D, 357 24, 340347M, H03K 1303

Patent

active

041715217

ABSTRACT:
Analog-to-digital conversion through successive approximation is implemented by means of a charge coupled device. During the conversion process two charges are compared, each comparison yielding one bit of a multi-bit number. By increasing the lesser of the compared charges after each comparison, the need to subtract charge as part of the successive approximation process is eliminated.

REFERENCES:
patent: 3930255 (1975-12-01), Means
patent: 4072939 (1978-02-01), Heller et al.

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