WO2025261758 - CODING AND DECODING METHODS, AND CORRESPONDING DEVICES AND COMPUTER PROGRAM
National phase entry is expected:
Publication Number
WO/2025/261758
Publication Date
26.12.2025
International Application No.
PCT/EP2025/065154
International Filing Date
02.06.2025
Title **
[English]
CODING AND DECODING METHODS, AND CORRESPONDING DEVICES AND COMPUTER PROGRAM
[French]
PROCÉDÉS DE CODAGE ET DE DÉCODAGE, DISPOSITIFS ET PROGRAMME D'ORDINATEUR CORRESPONDANTS
Applicants **
ORANGE
Inventors
CLARE, Gordon
HENRY, Félix
LADUNE, Theo
PHILIPPE, Pierrick
Priority Data
FR2406394
17.06.2024
FR
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Patent Delivery |
Send the Letters Patent by Courier
* |
| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2191 | |
| EPO | Filing, Examination, Granting | 8791 | |
| Japan | Filing, Examination, Granting | 2171 | |
| South Korea | Filing, Examination, Granting | 2051 | |
| USA | Filing, Examination, Granting | 5940 |
Total:
21,144
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Abstract[English]
The invention relates to a method for coding an input signal, implementing: ~ obtaining (11) syntax elements representative of the input signal, ~ for at least one current syntax element, coding (12) the value of the current syntax element, comprising: • obtaining (121) at least one item of information relating to the current syntax element, based on the coded value of at least one of the previously coded syntax elements, • carrying out M-ary/binary transformation (122) of the current syntax element, delivering at least one binary element, • for at least one current binary element, coding (123) the value of the current binary element, comprising: • obtaining (1231) information relating to the coding probability of the current binary element, based on the at least one item of information relating to the current syntax element, • entropy-coding (1232) the value of the current binary element, taking into account the information relating to the coding probability of the current binary element.[French]
L'invention concerne un procédé de codage d'un signal d'entrée mettant en œuvre : ~ obtention (11) d'éléments de syntaxe représentatifs dudit signal d'entrée, ~ pour au moins un élément de syntaxe courant, codage (12) de la valeur dudit élément de syntaxe courant, comprenant : • obtention (121) d'au moins une information relative audit élément de syntaxe courant, à partir de la valeur codée d'au moins un desdits éléments de syntaxe précédemment codé, • transformation M-aire/binaire (122) dudit élément de syntaxe courant, délivrant au moins un élément binaire, • pour au moins un élément binaire courant, codage (123) de la valeur dudit élément binaire courant, comprenant : • obtention (1231) d'une information relative à la probabilité de codage dudit élément binaire courant, à partir de ladite au moins une information relative audit élément de syntaxe courant, • codage entropique (1232) de la valeur dudit élément binaire courant tenant compte de ladite information relative à la probabilité de codage de l'élément binaire courant.