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. 04, 2022

Filed:

Mar. 22, 2019
Applicant:

Kddi Corporation, Tokyo, JP;

Inventors:

Yoshitaka Kidani, Fujimino, JP;

Kei Kawamura, Fujimino, JP;

Haruhisa Kato, Fujimino, JP;

Sei Naito, Fujimino, JP;

Assignee:

KDDI CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/105 (2014.01); H04N 19/593 (2014.01); H04N 19/136 (2014.01); H04N 19/117 (2014.01); H04N 19/176 (2014.01);
U.S. Cl.
CPC ...
H04N 19/105 (2014.11); H04N 19/136 (2014.11); H04N 19/593 (2014.11); H04N 19/117 (2014.11); H04N 19/176 (2014.11);
Abstract

A decoding-side first generation unit generating, for a target unit, a first component prediction sample. A decoding-side linear prediction unit using the first component sample and a prediction coefficient to generate a linear prediction sample of a second component. A decoding-side second generation unit using the second component linear prediction sample to generate, for the target unit, a second component prediction sample. The decoding-side linear prediction unit uses a first coefficient as the prediction coefficient when the first component sample is equal to or below a threshold value, and uses a second coefficient, different from the first, as the prediction coefficient when the first component sample is greater than the threshold value. The threshold value is set on a parameter representing a distribution or change in a reference sample of the first component and/or the second component contained in a reference unit referenced for the target unit.


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