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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4704600 B1

PDFFull Text
Date of Patent:
Nov. 03, 1987

Filed:

Feb. 04, 1986

Oversampling converter

Applicant:
Inventors:

Kuniharu Uchimura, Kanagawa, JP;

Tsutomu Kobayashi, Kanagawa, JP;

Atushi Iwata, Tokyo, JP;

Toshio Hayashi, Kanagawa, JP;

Tadakatsu Kumura, Kanagawa, JP;

Assignee:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Attorney:

Blakely, Sokoloff Taylor & Zafman

Primary Examiner:

Charles D Miller

Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
3403 / ; 3403 / ;
Abstract

An oversampling converter includes first and second integrators for integrating a difference between an input terminal voltage and feedback voltages, first and second quantizers for quantizing outputs from the first and second integrators, respectively, first and second feedback paths for feeding back as the feedback voltages outputs from the first quantizer to the input sides of the first and second integrators, a differentiator arranged at an output side of the second quantizer, an adder for adding an output from the differentiator and the output from the first quantizer, and a circuit for supplying an output from the first integrator to an input terminal of the second integrator. Two or more quantization loops may be used. When the oversampling converter is used as an A/D converter, A/D converters are arranged in the first and second feedback paths. When the oversampling converter is used as a D/A converter, D/A converters are arranged between the adder and the first quantizer and between the adder and the second quantizer.

Find Patent Forward Citations

Uchimura, Kuniharu. (1987). Oversampling converter (U.S. Patent No. 4704600). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4704600

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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