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.

Date of Patent:
Sep. 17, 1985

Filed:

Aug. 10, 1983
Applicant:
Inventor:

Masao Kasuga, Sagamihara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3403 / ; 3403 / ;
Abstract

A digital-to-analog converting device comprises a signal processing circuit supplied with a discrete digital signal x.sub.n at a time nT, where n is a natural number and T is a sampling period, for converting the discrete digital signal x.sub.n into a digital signal y.sub.n satisfying an equation ##EQU1## where N is a natural number greater than i, a digital-to-analog converter for converting the output digital signal y.sub.n of the signal processing circuit into an analog signal having a continuous amplitude, and an analog lowpass filter supplied with the output analog signal of the digital-to-analog converter, for eliminating frequency components substantially equal to or higher than 1/2 a sampling frequency F.sub.s of the discrete input digital signal of the signal processing circuit.


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