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1. (WO2017166879) CHANNEL-LOCKING METHOD AND DEVICE FOR USE DURING RECORDING AND BROADCASTING OF TEACHING PROCESS
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/166879 International Application No.: PCT/CN2016/113208
Publication Date: 05.10.2017 International Filing Date: 29.12.2016
IPC:
H04N 5/268 (2006.01) ,H04N 21/433 (2011.01) ,H04N 21/44 (2011.01) ,H04N 21/442 (2011.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
222
Studio circuitry; Studio devices; Studio equipment
262
Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects
268
Signal distribution or switching
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
21
Selective content distribution, e.g. interactive television, VOD [Video On Demand]
40
Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB [set-top-box]; Operations thereof
43
Processing 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 synchronizing decoder's clock; Client middleware
433
Content storage operation, e.g. storage operation in response to a pause request or caching operations
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
21
Selective content distribution, e.g. interactive television, VOD [Video On Demand]
40
Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB [set-top-box]; Operations thereof
43
Processing 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 synchronizing decoder's clock; Client middleware
44
Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to MPEG-4 scene graphs
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
21
Selective content distribution, e.g. interactive television, VOD [Video On Demand]
40
Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB [set-top-box]; Operations thereof
43
Processing 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 synchronizing decoder's clock; Client middleware
442
Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed or the storage space available from the internal hard disk
Applicants: GUANGZHOU SHIRUI ELECTRONICS CO., LTD.[CN/CN]; No.192, Kezhu Road, Guangzhou Science Park, Guangzhou Economic and Technological Development Zone Guangzhou, Guangdong 510663, CN
Inventors: CHEN, Haoli; CN
LIU, Wei; CN
LIU, Weihe; CN
Agent: ADVANCE CHINA IP LAW OFFICE; Room 3901, No. 85 Huacheng Avenue, Tianhe District Guangzhou, Guangdong 510623, CN
Priority Data:
201610192680.029.03.2016CN
Title (EN) CHANNEL-LOCKING METHOD AND DEVICE FOR USE DURING RECORDING AND BROADCASTING OF TEACHING PROCESS
(FR) PROCÉDÉ ET DISPOSITIF DE VERROUILLAGE DE CANAL POUR UTILISATION PENDANT L'ENREGISTREMENT ET LA DIFFUSION D'UN PROCESSUS D'ENSEIGNEMENT
(ZH) 教学录播用锁定画面的方法及装置
Abstract:
(EN) The invention relates to a channel-locking method and device for use during recording and broadcasting of a teaching process. The channel-locking method for use during recording and broadcasting of a teaching process comprises the following steps: comparing an image of a current frame of a video signal with an image of a frame preceding the current frame and detecting if there is a change in the images, the video signal being a video signal inputted to a computer of a user using a teaching process recording and broadcasting system; feeding back a comparison and detection result to the teaching process recording and broadcasting system; and switching, by the teaching process recording and broadcasting system, and according to the comparison and detection result, a recording and broadcasting channel to a channel of the computer of the user, or maintaining a current signal channel. The invention uses a signal detection process. When a change is detected in an inputted video signal, a corresponding comparison and detection result is transmitted to a recording and broadcasting system, and the recording and broadcasting system switches a recording and broadcasting channel to a corresponding channel, thereby effectively preventing a problem in which a conventional recording and broadcasting system is unable to record and broadcast a complete teaching process due to a lack of a channel-locking operation, and realizing an automatic recording and broadcasting process for a teaching process.
(FR) L'invention concerne un procédé et dispositif de verrouillage de canal destinés à être utilisés pendant l'enregistrement et la diffusion d'un processus d'enseignement. Le procédé de verrouillage de canal destiné à être utilisé pendant l'enregistrement et la diffusion d'un processus d'enseignement comporte les étapes consistant à: comparer une image d'une trame courante d'un signal vidéo à une image d'une trame précédant la trame courante et détecter s'il y existe un changement dans les images, le signal vidéo étant un signal vidéo introduit dans un ordinateur d'un utilisateur à l'aide d'un système d'enregistrement et de diffusion de processus d'enseignement; renvoyer un résultat de comparaison et de détection au système d'enregistrement et de diffusion de processus d'enseignement; et faire commuter, par le système d'enregistrement et de diffusion de processus d'enseignement, et selon le résultat de comparaison et de détection, un canal d'enregistrement et de diffusion vers un canal de l'ordinateur de l'utilisateur, ou maintenir un canal de signal actuel. L'invention utilise un processus de détection de signal. Lorsqu'un changement est détecté dans un signal vidéo introduit, un résultat correspondant de comparaison et de détection est envoyé à un système d'enregistrement et de diffusion, et le système d'enregistrement et de diffusion commute un canal d'enregistrement et de diffusion vers un canal correspondant, prévenant ainsi efficacement un problème où un système conventionnel d'enregistrement et de diffusion est incapable d'enregistrer et de diffuser un processus d'enseignement complet en raison de l'absence d'une opération de verrouillage de canal, et réalisant un processus automatique d'enregistrement et de diffusion pour un processus d'enseignement.
(ZH) 本发明涉及一种教学录播用锁定画面的方法及装置,其中,教学录播用锁定画面的方法,包括以下步骤:对视频信号的当前帧的图像与当前帧的上一帧的图像进行图像是否发生变化的比较检测,视频信号为教学录播系统的用户电脑输入的视频信号;向教学录播系统反馈比较检测结果;由教学录播系统根据比较检测结果将录播通道切换至用户电脑通道或保持当前信号通道。本发明通过信号检测流程,当检测到输入的视频信号有变化时,则发送相应的比较检测结果给录播系统,由录播系统将录播通道切换到相应的通道,可以有效的防止传统录播系统由于没有锁定画面导致无法完整录播的问题出现,实现教学录播过程的自动化处理。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)