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:
Oct. 03, 2023

Filed:

Apr. 27, 2021
Applicant:

Novatek Microelectronics Corp., Hsinchu, TW;

Inventors:

Chih-Peng Hsia, Hsinchu County, TW;

Cho-Hsuan Jhang, Hsinchu, TW;

Su-Wei Lien, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/34 (2006.01); H03M 1/50 (2006.01); H03K 5/135 (2006.01); H03K 5/156 (2006.01); H03M 1/82 (2006.01);
U.S. Cl.
CPC ...
H03M 1/508 (2013.01); H03K 5/135 (2013.01); H03K 5/1565 (2013.01); H03M 1/825 (2013.01);
Abstract

A column analog-to-digital converter and the local counting method is provided. The column analog-to-digital converter includes a plurality of analog-to-digital converters in parallel. Each of the analog-to-digital converters includes a comparator and a counting circuit. The comparator compares the ramp voltage with one of the plurality of column signals to generate a comparator output signal. The counting circuit generates a local clock by means of a voltage-controlled oscillator of the counting circuit according to the base clock and the comparator output signal, counts the base clock and the local clock respectively to generate a first counting output and a second counting output, and combines the first counting output with the second counting output to generate the counting output.


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