Analog to digital converting device

Details Analog to digital converting device Analog to digital converting device

1977-12-16

1980-10-07

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03K 13175

Patent

active

042271835

ABSTRACT:
In an analog to digital converting device having plural converting stages provided for converting an analog signal to a multi-bit digital signal, the lowest or just preceding converting stages, wherein analog signals to be converted are quantized by minute steps and can be regarded as similar to Gaussian noises, are arranged to form equivalent digital signals. The analog signals are compared with reference levels based on the average level of the analog signals, for instance, alternating components of analog signals are compared with a zero level, hereby improving accuracy of the conversion by minimizing the effect of DC and gain drift.

REFERENCES:
patent: 4110745 (1978-08-01), Ninomiya
Villante "IBM Technical Disclosure Bulletin", vol. 5, No. 6, Nov. 1962, pp. 55-56.
Rackl "IBM Technical Disclosure Bulletin", vol. 15, No. 4, Sep. 1972, pp. 1138-1139.

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