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:
Jun. 17, 2025

Filed:

Dec. 15, 2021
Applicant:

Korea Electronics Technology Institute, Seongnam-si, KR;

Inventors:

Ji Soo Hong, Seoul, KR;

Sung Hee Hong, Seoul, KR;

Young Min Kim, Seoul, KR;

Jin Soo Jeong, Seoul, KR;

Byoung Hyo Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/04 (2006.01); G03H 1/02 (2006.01); G03H 1/22 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0476 (2013.01); G03H 1/024 (2013.01); G03H 1/2249 (2013.01); G03H 2001/0224 (2013.01); G03H 2001/0232 (2013.01); G03H 2001/2263 (2013.01);
Abstract

Provided is a hologram image normalization method for a holographic printer. In a holographic printing method according to an embodiment, generating, encoding, and normalizing for the (n+1)-th hogel are performed in parallel with loading and recording of a normalized hologram for the n-th hogel, and moving and waiting for the (n+1)-th hogel. Accordingly, a global maximum value and a global minimum value for normalization may be calculated as approximate estimation values, and a hologram generation process and a printing process may be performed in parallel, so that a total printing time may be minimized and memory usage may be optimized when holographic printing is performed.


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