WO2023103572 - DEVICES, METHODS, AND COMPUTER READABLE MEDIA FOR SCREEN-CAPTURE COMMUNICATION
National phase entry is expected:
Publication Number
WO/2023/103572
Publication Date
15.06.2023
International Application No.
PCT/CN2022/124165
International Filing Date
09.10.2022
Title **
[English]
DEVICES, METHODS, AND COMPUTER READABLE MEDIA FOR SCREEN-CAPTURE COMMUNICATION
[French]
DISPOSITIFS, PROCÉDÉS ET SUPPORTS LISIBLES PAR ORDINATEUR POUR UNE COMMUNICATION PAR CAPTURE D'ÉCRAN
Applicants **
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Administration Building, Bantian, Longgang District
Shenzhen, Guangdong 518129, CN
Inventors
WALLACE, Thomas Daniel
Suite 400, 303 Terry Fox Drive
Kanata, Ontario K2K 3J1, CA
BHATT, Parth
46 Activa Avenue
Kitchener, Ontario N2E 3R2, CA
MOHAMAD, Mustafa
511 Rivertrail Avenue
Kitchener, Ontario N2A 0K1, CA
ABDELKHALEK, Ahmed
213-663 Victoria Street South
Kitchener, Ontario N2M 0B9, CA
Priority Data
17/546,149
09.12.2021
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
| * | |
| * | |
International Searching Authority |
CNIPA
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Translation |
|
Recalculate
* 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 | 1260 | |
| EPO | Filing, Examination | 7951 | |
| Japan | Filing | 588 | |
| South Korea | Filing | 574 | |
| USA | Filing, Examination | 3310 |
Total: 13683 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The present disclosure provides for methods, apparatus and computer readable media related to screen-capture communication based on invisible watermark. An aspect of the disclosure provides for a method including inserting one or more templates into one or more frames of a video for correcting frame perspective of the one or more frames captured by a device. The method further includes writing a message into the one or more frames of the video and displaying the video. According to a second aspect, a second method is provided. The second method includes capturing one or more frames of a video displayed on a device comprising a hidden message. The method further includes locating one or more templates and correcting frame perspective of the captured frames based on the templates. The method further includes extracting the message from the one or more frames of the video.[French]
La présente invention concerne des procédés, un appareil et des supports lisibles par ordinateur associés à une communication par capture d'écran sur la base d'un filigrane invisible. Un aspect de l'invention concerne un procédé comprenant l'insertion d'un ou de plusieurs modèles dans une ou plusieurs trames d'une vidéo pour corriger une perspective de trame de la ou des trames capturées par un dispositif. Le procédé comprend en outre l'écriture d'un message dans la ou les trames de la vidéo et l'affichage de la vidéo. Selon un second aspect, l'invention concerne un second procédé. Le second procédé comprend la capture d'une ou de plusieurs trames d'une vidéo affichée sur un dispositif comprenant un message caché. Le procédé comprend en outre la localisation d'un ou de plusieurs modèles et la correction de la perspective de trame des trames capturées sur la base des modèles. Le procédé comprend en outre l'extraction du message de la ou des trames de la vidéo.