Analog to digital converter

Details Analog to digital converter Analog to digital converter

1975-10-28

1978-08-29

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03K 13175

Patent

active

041107454

ABSTRACT:
An analog to digital converter used for converting such an analog signal having dc parts of a constant level periodically as a television picture signal, comprising a plurality of comparators comparing the analog signal with several reference voltage levels, and at least one dc clamper clamping the reference voltage levels in relation to the constant dc level contained in the analog signal. Consequently, the influence affected by dc drifts occuring in the signals and circuit elements may be avoided, so that, high exactness of conversion can be obtained. Besides, in a cascade connection of such converters converting respectively differential analog signals delayed successively to successive bits, high bit rate conversion can be performed without use of high speed circuit elements.

REFERENCES:
patent: 3159815 (1964-12-01), Groce
patent: 3544779 (1970-12-01), Farrow
patent: 3585631 (1971-06-01), McCown
patent: 3597761 (1971-08-01), Fraschilla
patent: 3710377 (1973-01-01), Guillen
patent: 3721975 (1973-03-01), Brinkman
patent: 3815124 (1974-06-01), Brewer
patent: 3846786 (1974-11-01), Brown
patent: 3858199 (1974-12-01), Neuner
patent: 3935569 (1976-01-01), Marcel

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