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:
Dec. 17, 1985
Filed:
Oct. 28, 1982
Applicant:
Inventor:
Toshiaki Wakita, Hiratsuka, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3403 / ; 3403 / ; 3403 / ; 371 72 ;
Abstract
An analog to digital converter is disclosed, in which an analog input voltage is converted by a first analog to digital converter to a digital signal of m-bits, the digital signal is code-converted to a digital signal, this code-converted digital signal is converted by a digital to analog converter to an analog voltage, the difference between the last analog voltage and the above analog input voltage is converted by a second analog to digital converter to a digital signal of n-bits, and this digital signal of n-bits and the above code-converted digital signal are added to each other to provide a digital signal of (m+n) bits which corresponds to the analog input voltage.