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.:
Date of Patent:
Sep. 08, 1987
Filed:
Mar. 13, 1985
Seigo Suzuki, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An analog signal is input to an A/D converting section. This A/D converting section has a D/A converter therein. The A/D converting section converts the input analog signal to a digital signal. A digital signal processing circuit receives an output signal from the A/D converting section and performs a predetermined process to this signal. A D/A converting section receives and converts an output signal of the digital signal processing circuit to an analog signal. This D/A converting section has a D/A converter with the same circuit arrangement as the D/A converter in the A/D converting section circuit and is constituted by the same circuit pattern. Therefore, the converting functions of the A/D converting section and of the D/A converting section are inverse functions of each other, so that error or distortion, which is caused in the A/D converting section, is automatically corrected when the digital signal is reconverted to the analog signal in the D/A converting section.