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:
Dec. 23, 2025

Filed:

Jan. 15, 2024
Applicant:

Himax Imaging Limited, Tainan, TW;

Inventors:

Wei-Chieh Yang, Tainan, TW;

Po-Chang Chen, Tainan, TW;

Felix Su, Tainan, TW;

Assignee:

Himax Imaging Limited, Tainan, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 25/671 (2023.01); H04N 25/51 (2023.01); H04N 25/628 (2023.01); H04N 25/677 (2023.01); H04N 25/78 (2023.01);
U.S. Cl.
CPC ...
H04N 25/677 (2023.01); H04N 25/51 (2023.01); H04N 25/671 (2023.01); H04N 25/78 (2023.01); H04N 25/628 (2023.01);
Abstract

A correction device includes: an offset updating unit, a calculating unit and a gain stretching unit. The offset updating unit is configured to generate a plurality of updated offset values according to a plurality of base offset values, wherein each of the plurality of updated offset values corresponding to one column of pixel values among a plurality of columns of pixel values generated by an image sensor. The calculating unit is configured to generate a plurality of columns of corrected pixel values according to the plurality of updated offset values and the plurality of columns of pixel values. The gain stretching unit is coupled to the calculating unit and configured to determine a compensation gain according to the plurality of updated offset values and accordingly generate a plurality of columns of output pixel values according to the compensation gain and the plurality of columns of corrected pixel values.


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