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1. WO2020135097 - METHOD AND APPARATUS FOR CHANNEL SWITCH DETECTION OF DISPLAY TERMINAL

Publication Number WO/2020/135097
Publication Date 02.07.2020
International Application No. PCT/CN2019/125083
International Filing Date 13.12.2019
IPC
H04N 17/04 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
17Diagnosis, testing or measuring for television systems or their details
04for receivers
CPC
G08C 17/02
GPHYSICS
08SIGNALLING
CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
17Arrangements for transmitting signals characterised by the use of a wireless electrical link
02using a radio link
G08C 23/04
GPHYSICS
08SIGNALLING
CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
23Non-electrical signal transmission systems, e.g. optical systems
04using light waves, e.g. infra-red
H04B 17/382
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
30of propagation channels
382for resource allocation, admission control or handover
H04N 17/004
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
17Diagnosis, testing or measuring for television systems or their details
004for digital television systems
H04N 17/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
17Diagnosis, testing or measuring for television systems or their details
04for receivers
H04N 21/43635
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
436Interfacing a local distribution network, e.g. communicating with another STB ; or one or more peripheral devices; inside the home
4363Adapting the video ; or multiplex; stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
43632involving a wired protocol, e.g. IEEE 1394
43635HDMI
Applicants
  • 研祥智能科技股份有限公司 EVOC INTELLIGENT TECHNOLOGY CO., LTD [CN]/[CN]
Inventors
  • 郑海明 ZHENG, Haiming
  • 林淼 LIN, Miao
  • 刘志永 LIU, Zhiyong
  • 陈志列 CHEN, Zhilie
Agents
  • 广州华进联合专利商标代理有限公司 ADVANCE CHINA IP LAW OFFICE
Priority Data
201811641901.329.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND APPARATUS FOR CHANNEL SWITCH DETECTION OF DISPLAY TERMINAL
(FR) PROCÉDÉ ET APPAREIL DE DÉTECTION DE COMMUTATION DE CANAL D'UN TERMINAL D'AFFICHAGE
(ZH) 显示终端通道切换检测方法和装置
Abstract
(EN)
A method for channel switch detection of a display terminal, comprising: sending a remote control code and a signal source image corresponding to the remote control code to a display terminal to be measured, the signal source image carrying a target channel character, and the display position of the target channel character corresponding to the central color strip position of the signal source image; collecting a channel picture displayed by said display terminal in response to the remote control code and the signal source image; performing single-channel image processing on the channel picture, and tracking the single-channel central color strip position; obtaining an actual channel character according to the single-channel central color strip position; and performing channel switch detection according to the similarity matching between the target channel character and the actual channel character.
(FR)
La présente invention concerne un procédé de détection de commutation de canal d'un terminal d'affichage. Le procédé comprend les étapes consistant à : envoyer un code de télécommande et une image de source de signal correspondant au code de télécommande à un terminal d'affichage à mesurer, l'image de source de signal transportant une caractéristique du canal cible et la position d'affichage de la caractéristique du canal cible correspondant à la position de la bande de couleur centrale de l'image de source de signal ; collecter une représentation du canal affichée par ledit terminal d'affichage en réponse au code de télécommande et à l'image de source de signal ; effectuer un traitement d'image à canal unique sur la représentation du canal et suivre la position de la bande de couleur centrale du canal unique ; obtenir une caractéristique d'un canal réel en fonction de la position de la bande de couleur centrale du canal unique ; et effectuer une détection de commutation de canal en fonction de la correspondance de similarité entre la caractéristique du canal cible et la caractéristique du canal réel.
(ZH)
一种显示终端通道切换检测方法,方法包括:通过发送遥控码以及遥控码对应的信号源图像至待测显示终端,信号源图像中携带目标通道字符,目标通道字符的显示位置与信号源图像中心彩条位置对应;采集待测显示终端响应遥控码和信号源图像而显示的通道画面;对通道画面进行单通道图像处理,追踪单通道中心彩条位置;根据单通道中心彩条位置,获取实际通道字符;根据对目标通道字符与实际通道字符的相似度匹配,进行通道切换检测。
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