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. 25, 2018
Filed:
Mar. 14, 2018
Applicant:
Socionext Inc., Yokohama-shi, Kanagawa, JP;
Inventors:
Assignee:
SOCIONEXT INC., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03M 1/38 (2006.01); H03M 1/46 (2006.01); H04N 5/50 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0678 (2013.01); H03M 1/38 (2013.01); H03M 1/46 (2013.01); H04N 5/50 (2013.01);
Abstract
An A/D converter includes a capacitor DAC, a resistor DAC, a first capacitive element, and a comparator. The capacitor DAC is configured to convert high-order M bits, where M and N are integers equal to or greater than 2, and the resistor DAC is configured to convert low-order N bits. The first capacitive element is provided between the capacitor DAC and the resistor DAC, and the comparator is configured to compare an input signal voltage with a voltage output from the capacitor DAC. The resistor DAC generates and outputs a voltage by adding or subtracting a wait based on redundant bits in addition to N-bit resolution.