WO2011085594A1 - 视频画面切换的方法和装置 - Google Patents

视频画面切换的方法和装置 Download PDF

Info

Publication number
WO2011085594A1
WO2011085594A1 PCT/CN2010/076770 CN2010076770W WO2011085594A1 WO 2011085594 A1 WO2011085594 A1 WO 2011085594A1 CN 2010076770 W CN2010076770 W CN 2010076770W WO 2011085594 A1 WO2011085594 A1 WO 2011085594A1
Authority
WO
WIPO (PCT)
Prior art keywords
participant
site
called
relationship
correspondence
Prior art date
Application number
PCT/CN2010/076770
Other languages
English (en)
French (fr)
Inventor
赵云轩
闫相斌
Original Assignee
华为终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Priority to AU2010342701A priority Critical patent/AU2010342701B2/en
Priority to EP10842877.2A priority patent/EP2528326B1/en
Publication of WO2011085594A1 publication Critical patent/WO2011085594A1/zh
Priority to US13/552,444 priority patent/US8704872B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H04N7/152—Multipoint control units therefor

Definitions

  • the present invention relates to the field of video conferencing, and in particular, to a method and apparatus for switching video pictures.
  • BACKGROUND OF THE INVENTION Video technology realizes long-distance transmission of information such as voice, image, data, etc., so that people can use the video technology to hear the other party's voice while watching the other party's moving image and film content. , greatly enhanced the intimacy and presence of the exchanges in different places.
  • the video conferencing system consists of an MCU (Multipoint Control Unit) and a terminal.
  • Each terminal corresponds to a site, and the sounds and images of each site are collected, encoded, and sent to the multipoint control unit.
  • the multi-point control unit processes the sound and the image according to the fixed mode, such as sound mixing, image forwarding or composition of multiple pictures, and sends the processed sound and image to each terminal, and the terminal decodes and outputs the sound of the remote site. And images to achieve remote communication.
  • the first type is the remote control application method.
  • the conference control information needs to be sent through the remote controller, and the MCU is requested to view the image of the site 2, and the MCU receives the conference site 1
  • the video stream of the field 2 is forwarded to the site 1, so that the site 1 completes the mask switching function.
  • the second method is a voice-activated image or voice-activated switching method.
  • the remote control application method frequently performs screen switching operations through the remote controller, which affects the continuity and interactivity of the conference.
  • a method for switching video pictures comprising:
  • the site corresponding to the called participant is searched according to the corresponding relationship; and the video screen is switched to the site corresponding to the called participant.
  • a device for switching a video picture comprising:
  • the relationship obtaining module is configured to obtain a correspondence between the participant and the site;
  • a site search module configured to: when the participant is called, according to the correspondence obtained by the relationship obtaining module, searching for the site corresponding to the called participant;
  • the video switching module is configured to switch the video screen to the conference site corresponding to the called participant found by the site search module.
  • a device for switching a video picture comprising:
  • the relationship obtaining module is configured to obtain a correspondence between the participant and the site;
  • a site search module configured to: when the participant is called, according to the correspondence obtained by the relationship obtaining module, searching for the site corresponding to the called participant;
  • the application switching module is configured to send a video switching request to the multi-point control unit, where the video switching application includes a site identifier corresponding to the called participant, so that the multi-point control unit switches the video screen to the The meeting place corresponding to the caller.
  • FIG. 1 is a flowchart of a method for switching a video picture according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for switching a video picture according to Embodiment 2 of the present invention
  • 3 is a flowchart of a method for obtaining a correspondence relationship by an MCU according to Embodiment 2 of the present invention
  • FIG. 4 is a schematic diagram of a correspondence relationship of MCU records at a conference start stage provided by Embodiment 2 of the invention
  • FIG. 5 is provided in Embodiment 2 of the present invention. Schematic diagram of the correspondence relationship of the MCU records after "learning";
  • FIG. 6 is a flowchart of a method for switching a video picture according to Embodiment 3 of the present invention.
  • FIG. 7 is a flowchart of a method for acquiring a correspondence relationship by a site terminal according to Embodiment 3 of the present invention
  • FIG. 8 is a schematic structural diagram of a device for switching a video screen according to Embodiment 4 of the present invention
  • FIG. 9 is a schematic structural diagram of another apparatus for switching video screens according to Embodiment 4 of the present invention.
  • FIG. 10 is a schematic structural diagram of an apparatus for switching a video picture according to Embodiment 5 of the present invention.
  • FIG. 11 is another schematic structural diagram of an apparatus for switching video pictures according to Embodiment 5 of the present invention.
  • DETAILED DESCRIPTION OF THE EMBODIMENTS In order to make the objects, technical solutions, and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail with reference to the accompanying drawings.
  • this embodiment provides a method for switching video pictures, including:
  • the method provided in this embodiment obtains the correspondence between the participant and the conference site.
  • the participant When the participant is called, when the participant does not need to intervene manually, the participant can be searched according to the corresponding relationship without waiting for the participant to respond. Go to the site corresponding to the called participant, and automatically switch the video to the site or apply to the MCU to switch the video to the site, which ensures the continuity of the video conference, and can switch the video screen in time to improve the video. Participants in the meeting "face to face" exchange experience.
  • Example 2 takes the MCU to obtain the correspondence and the site terminal to obtain the corresponding relationship as an example to introduce the video switching method.
  • the MCU obtains the corresponding relationship as an example for description.
  • the method for switching the video screen includes the following steps:
  • the MCU obtains a correspondence between the participant and the venue
  • the MCU There are two methods for the MCU to obtain the corresponding relationship.
  • the first is to set the correspondence between the participant and the site in advance. Specifically, a corresponding relationship table between the participant and the site is preset in the MCU, for example: "Zhang San” Corresponding to the venue 1 "Li Si” corresponds to the venue 2, “Wang Wu” corresponds to the venue N and so on.
  • the second is to obtain the corresponding relationship between the participants and the venue through “learning”. The method of obtaining the correspondence by "learning” is described in detail below.
  • the called participant will give priority to the speech after the speaker stops speaking.
  • the method of obtaining the correspondence through “learning” includes:
  • the MCU receives the voice signal
  • the MCU determines that the voice signal is calling a certain participant, and after the participant answers, determines the site corresponding to the participant;
  • the MCU determines, by voice recognition technology, that the voice signal is calling a certain participant, that is, the participant who needs to be called to answer.
  • the specific process of voice recognition is as follows: 1) identifying whether the voice signal contains a name, and presetting a family name and a custom name, for example, Lao Li, etc., if the voice signal matches a preset hundred family name or a custom name, The voice signal contains the name, otherwise it does not contain the name; 2) The preset calls the grammar of the participant.
  • the grammar includes but is not limited to: the name appears at the top of the language signal, or "please" appears at the same time as the name. For example, the received voice signal is "Please ask Li Si to speak below.”
  • the MCU judges that the voice signal includes the name "Li Si" by voice recognition technology, and appears at the same time as "Please", and it is judged that it is calling "Li Si”.
  • the participant's corresponding site is determined by detecting voice energy or detecting voice activity.
  • the site name, location, port number, ID, and the like are used in the site, and the embodiment is not limited.
  • the MCU can also determine that the voice signal is a normal speech, and does not need to switch the video, and still forwards the current video to each site terminal.
  • the voice signal is "The theme of this conference is environmental protection" or "This part of the work is handled by Li Si", etc. These are normal speeches and do not need to switch video pictures.
  • the normal speech may also include the name of the participant.
  • the MCU uses speech recognition technology to judge whether the speech signal refers to the participant, rather than calling the participant.
  • the correspondence recorded in the MCU is empty.
  • the terminal 1 is the terminal of the site 1
  • the terminal 2 is the terminal of the site 2
  • the terminal N is the terminal of the site N.
  • the MCU records "Li Si” corresponding to the venue 2
  • "Wang Wu” corresponds to the venue N.
  • the site 1 calls for "Li Si” or "Wang Wu”
  • the MCU finds the site corresponding to the name from the recorded correspondence, and sends the site video screen to the site 1 for viewing.
  • Venue 2 Venue N did not actively call other venues, so its record is still empty.
  • the above two methods for obtaining the correspondence relationship do not need to include special control commands in the voice, thereby improving the "face-to-face” communication experience.
  • the two also have their advantages:
  • the first pre-set method is simple and easy to implement.
  • the second "learning" method automatically acquires the correspondence and updates it at any time.
  • the MCU receives the voice signal, and determines that the voice signal is calling the participant;
  • the MCU determines, by using a voice recognition technology, that the voice signal is calling a participant.
  • the MCU can also judge that the voice signal is a normal speech, and does not need to switch the video, and still forwards the current video to each conference terminal.
  • Step 201b has been described in detail, and will not be described again here.
  • the MCU searches and switches the video screen to the site corresponding to the called participant according to the correspondence relationship; 205: After the called participant answers, obtains the site corresponding to the called participant, and the record is called. The corresponding relationship of the meeting place corresponding to the participant who is called.
  • the method for obtaining the site corresponding to the called participant includes, but is not limited to: determining the site corresponding to the called participant by detecting the voice energy (or detecting the voice envelope) or detecting the voice activity.
  • the MCU in this embodiment may exist independently of each site, or may be integrated in a certain site terminal.
  • the MCU obtains the correspondence between the participant and the conference site.
  • the participant When the participant is called, the participant does not need to wait for the participant to respond if the participant does not need to intervene.
  • the site corresponding to the called participant is found, and the video is automatically switched to the site, which ensures the continuity of the video conference, and can switch the video screen in time, thereby enhancing the "face-to-face" of the participants in the video conference.
  • Exchange experience the MUC obtains the corresponding relationship and determines the switching site, which reduces the requirements on the performance of the site terminal and facilitates unified management of the corresponding relationship.
  • the method for acquiring the corresponding relationship by the site terminal is taken as an example.
  • the method for switching the video screen specifically includes the following steps:
  • the site terminal obtains a correspondence between each participant and the site thereof, where the obtaining method includes but is not limited to:
  • the MCU After obtaining the corresponding relationship, the MCU distributes the corresponding relationship to each terminal site.
  • the method for obtaining the corresponding relationship by the MCU may be specifically implemented by using the method provided in Embodiment 2.
  • the method of obtaining the corresponding relationship by learning specifically includes the following steps: 301a: The venue terminal calls the participants;
  • the site terminal that initiates the call receives the site corresponding to the participant sent by the MCU. Specifically, after the participant answers the site terminal, the MCU determines and sends the site corresponding to the participant.
  • the method for determining the site corresponding to the participant includes, but is not limited to: determining the participant's corresponding site by detecting voice energy (or detecting voice envelope) or detecting voice activity.
  • the site name, the location, the port number, the ID, and the like may be used for the site corresponding to the participant. This embodiment is not limited.
  • the participant who has called the site terminal obtains the site corresponding to the participant.
  • the site terminal that initiates the call records the correspondence between the participant and the site corresponding to the participant.
  • the above three methods for obtaining correspondence do not need to include special control commands in the voice, which improves the "face-to-face" communication experience.
  • the three also have their own advantages:
  • the first pre-set method is simple and easy to implement.
  • the second method of MCU distribution facilitates centralized management and reduces the performance requirements of the venue terminal.
  • the third "learning" method automatically acquires the correspondence and updates it at any time.
  • the site corresponding to the called participant is searched, and the video switching application is automatically sent to the MCU, where the video switching application includes the site identifier corresponding to the called participant, so that the MCU switches the video screen to the called party.
  • the method for obtaining the site corresponding to the called participant is specifically: receiving the site corresponding to the called participant sent by the MCU.
  • the method for the MCU to obtain and send the site corresponding to the participant is described in 301b.
  • the MCU in this embodiment may exist independently of each site, or may be integrated in a site terminal.
  • the site terminal obtains the corresponding relationship between the participant and the site.
  • the participant When the participant is called, when the participant does not need to intervene, the participant does not need to wait for the participant to respond.
  • the relationship finds the site corresponding to the called participant, and requests the MCU to switch the video to the site, which ensures the continuity of the video conference, and can switch the video screen in time to enhance the participants in the video conference. Face-to-face communication experience.
  • the embodiment provides a device for switching video pictures, including:
  • the relationship obtaining module 401 is configured to obtain a correspondence between the participant and the site;
  • the site search module 402 is configured to: when the participant is called, according to the correspondence obtained by the relationship obtaining module 401, find the site corresponding to the called participant;
  • the video switching module 403 is configured to switch the video screen to the site corresponding to the called participant that is found by the site search module 402.
  • the relationship obtaining module 401 includes:
  • a voice receiving unit 401a configured to receive a voice signal
  • the site determining unit 401b is configured to determine, by using a voice recognition technology, that the voice signal received by the voice receiving unit 401a is a caller, and after receiving the response of the participant, determine the participant by detecting voice energy or detecting voice activity. Corresponding meeting place;
  • the relationship record unit 401c is configured to record the correspondence between the participant and the site corresponding to the participant determined by the site determining unit 401b.
  • the relationship acquisition module 401 includes:
  • the relationship setting unit 401d is configured to preset a correspondence relationship of the participant site.
  • the device further includes: a call determination module 404, configured to receive the voice signal, determine, by the voice recognition technology, that the voice signal is calling the participant, and then execute the site search module 402.
  • a call determination module 404 configured to receive the voice signal, determine, by the voice recognition technology, that the voice signal is calling the participant, and then execute the site search module 402.
  • the device further includes: a relationship determining module 405, configured to determine whether the correspondence acquired by the relationship obtaining module 401 has a called party, and when the participant is not called, the called party is called After the response, the site corresponding to the called participant is obtained, and the correspondence between the called participant and the site corresponding to the called participant is recorded.
  • a relationship determining module 405 configured to determine whether the correspondence acquired by the relationship obtaining module 401 has a called party, and when the participant is not called, the called party is called After the response, the site corresponding to the called participant is obtained, and the correspondence between the called participant and the site corresponding to the called participant is recorded.
  • the apparatus provided in this embodiment may specifically be an MCU.
  • the device provided in this embodiment obtains the correspondence between the participant and the conference site.
  • the participant When the participant is called, when the participant does not need to intervene manually, the participant can be searched according to the correspondence relationship without waiting for the participant to respond. Go to the venue corresponding to the called participant, and automatically switch the video to the venue, which ensures the continuity of the video conference, and can switch the video screen in time, which enhances the "face-to-face" communication of the participants in the video conference.
  • the device obtains the corresponding relationship and determines the switching site, which reduces the requirements on the performance of the site terminal, and facilitates unified management of the correspondence.
  • the embodiment provides a device for switching video frames, including:
  • the relationship obtaining module 501 is configured to obtain a correspondence between the participant and the site;
  • the site search module 502 is configured to: when the participant is called, according to the correspondence obtained by the relationship obtaining module 501, find the site corresponding to the called participant;
  • the application switching module 503 is configured to send a video switching request to the multi-point control unit, where the video switching application includes the site identifier corresponding to the called participant, so that the multi-point control unit switches the video screen to the called participant. Meeting place.
  • the relationship obtaining module 501 includes:
  • Calling unit 501a used to call the participants
  • the receiving unit 501b is configured to: after the participant answers, receive the site corresponding to the participant sent by the MCU; or, after the participant answers, obtain the site corresponding to the participant;
  • the recording unit 501c is configured to record the correspondence between the participants called by the calling unit 501a and the meeting place corresponding to the participants received by the receiving unit 501b.
  • the relationship acquisition module 501 includes:
  • the relationship setting unit 501d is configured to preset a correspondence between the participant and the site.
  • the device further includes:
  • the relationship determining module 504 is configured to determine whether the corresponding relationship acquired by the relationship acquiring module 501 has a called party. When there is no called participant, after the called participant answers, the receiving MCU sends the received The site corresponding to the participant who is called, records the correspondence between the called participant and the site corresponding to the called participant.
  • the device provided in this embodiment may specifically be a site terminal.
  • the device provided in this embodiment obtains the correspondence between the participant and the conference site.
  • the participant When the participant is called, when the participant does not need to intervene manually, the participant can be searched according to the correspondence relationship without waiting for the participant to respond. Go to the site corresponding to the called participant, and apply to the MCU to switch the video to the site, which ensures the continuity of the video conference, and can switch the video screen in time, which enhances the face-to-face meeting of the participants in the video conference. Communication experience.
  • All or part of the technical solutions provided by the above embodiments may be implemented by software programming, and the software program is stored in a readable storage medium such as a hard disk, an optical disk or a floppy disk in a computer.

Description

视频画面切换的方法和装置 本申请要求于 2010年 1月 18日提交中国专利局、 申请号为 201010002289. 2、发明 名称为 "视频画面切换的方法和装置"的中国专利申请的优先权， 其全部内容通过引用 结合在本申请中。 技术领域 本发明涉及视讯会议领域， 特别涉及 ·种视频画面切换的方法和装置。 背景技术 视讯技术实现了语音、 图像、 数据等信息综合在一起的远距离传输， 使人们在进行 异地交流时利用视讯技术既可以听到对方的声音，又可以看到对方的活动图像和胶片内 容， 大大增强了异地交流的亲切感和临场感。
视讯会议系统由 MCU (Multipoint Control Unit, 多点控制单元） 和终端组成。 每 个终端对应一个会场， 采集各个会场的声音、 图像， 编码后发送给多点控制单元。 多点 控制单元按照 ·定的方式对声音、 图像进行处理， 如声音混音、 图像转发或组成多画面 等， 并将处理后的声音和图像发送给各个终端， 终端解码输出远端会场的声音和图像， 实现远程通信。
现有视讯会议中视频画面切换的方法主要有两种：
第一种是遥控器申请的方法， 当会场 1的参会人员想要观看会场 2的画面时， 需要 通过遥控器发出会议控制信息， 向 MCU申请观看会场 2的图像， MCU在接收到会场 1的 终端发来的 "会场 1申请观看会场 2画面"的控制信息后， 将会场 2的视频码流转发给 会场 1 , 这样会场 1完成一次幽面切换功能。
第二种是语音激励图像或称声控切换的方法， 通过比较会议中各个会场声音的大 小， 判断当前会议发言人在哪个会场， 将其图像自动广播给其他会场进行观看。
在实现本发明的过程中， 发明人发现现有技术至少存在以下问题：
遥控器申请的方法， 频繁地通过遥控器进行画面切换操作， 影响会议的连续性、 交 互性。 声控切换的方法， 只有当某个会场发言时， 才能将其画面广播给各个会场进行观 看， 具有一定的滞后性。 发明内容 为了保障视讯会议的连续性， 并能够及时地切换视频画面， 本发明实施例提供了 - 种视频画面切换的方法和装置。
所述技术方案如下：
-种视频画面切换的方法， 所述方法包括：
获取参会者与会场的对应关系；
当参会者被呼唤时， 根据所述对应关系， 查找所述被呼唤的参会者对应的会场； 将视频画面切换到所述被呼唤的参会者对应的会场。
一种视频画面切换的装置， 所述装置包括：
关系获取模块， 用于获取参会者与会场的对应关系；
会场查找模块， 用于当参会者被呼唤时， 根据所述关系获取模块得到的对应关系， 查找所述被呼唤的参会者对应的会场；
视频切换模块，用于将视频画面切换到所述会场查找模块找到的被呼唤的参会者对 应的会场。
一种视频画面切换的装置， 所述装置包括：
关系获取模块， 用于获取参会者与会场的对应关系；
会场查找模块， 用于当参会者被呼唤时， 根据所述关系获取模块得到的对应关系， 查找所述被呼唤的参会者对应的会场；
申请切换模块， 用于向多点控制单元发送视频切换申请， 所述视频切换申请包括所 述被呼唤的参会者对应的会场标识，使所述多点控制单元将视频画面切换到所述被呼唤 的参会者对应的会场。
本发明实施例提供的技术方案带来的有益效果是：
通过获取参会者与会场的对应关系， 当呼唤参会者时， 在不需要参会者人为干预的 情况下， 无须等待参会者应答， 就可以根据对应关系查找到该被呼唤的参会者对应的会 场， 并将视频自动切换到该会场或向 MCU申请将视频切换到该会场， 保障了视讯会议的 连续性， 并能够及时地切换视频画面， 提升了视讯会议中参会人员 "面对面"的交流体 验。 附图说明 图 1是本发明实施例 1提供的视频画面切换的方法流程图；
图 2是本发明实施例 2提供的视频画面切换的方法流程图； 图 3是本发明实施例 2提供的 MCU通过学习获取对应关系的方法流程图； 图 4是木发明实施例 2提供的会议开始阶段 MCU记录的对应关系示意图； 图 5是本发明实施例 2提供的 "学习"后 MCU记录的对应关系示意图；
图 6是本发明实施例 3提供的视频画面切换的方法流程图；
图 7是本发明实施例 3提供的会场终端通过学习获取对应关系的方法流程图； 图 8是本发明实施例 4提供的视频画面切换的装置结构示意图；
图 9是本发明实施例 4提供的视频画面切换的装置另 ·结构示意图；
图 10是本发明实施例 5提供的视频画面切换的装置结构示意图；
图 11是本发明实施例 5提供的视频画面切换的装置另一结构示意图。 具体实施方式 为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明实施方式 作进一步地详细描述。
实施例 1
参见图 1， 本实施例提供了一种视频画面切换的方法， 包括：
101： 获取参会者与会场的对应关系；
102： 当参会者被呼唤时， 根据该对应关系， 查找被呼唤的参会者对应的会场； 103： 将视频画面切换到被呼唤的参会者对应的会场。
本实施例提供的方法， 通过获取参会者与会场的对应关系， 当呼唤参会者时， 在不 需要参会者人为干预的情况下， 无须等待参会者应答， 就可以根据对应关系查找到该被 呼唤的参会者对应的会场， 并将视频自动切换到该会场或向 MCU申请将视频切换到该会 场， 保障了视讯会议的连续性， 并能够及时地切换视频画面， 提升了视讯会议中参会人 员 "面对面" 的交流体验。
下面分别以 MCU获取对应关系和会场终端获取对应关系为例，介绍视频切换的方法。 实施例 2
参见图 2, 本实施例以 MCU获取对应关系为例进行说明， 则视频画面切换的方法具 体包括以下步骤：
201： MCU获取参会者与会场的对应关系；
其中， MCU获取对应关系具体有两种方法，一是预先设置参会者与会场的对应关系， 具体的，在 MCU中预先设置一个参会者与会场的对应关系表，例如： "张三 "对应会场 1 , "李四"对应会场 2， "王五"对应会场 N等。二是通过 "学习"获取参会者与会场的对 应关系。 下面详细介绍通过 "学习"获取对应关系的方法。
首先， 通过 "学习"获取对应关系的方法， 利用了多点会议中人们自由交流的 2个 习惯：
1、 发言人在呼唤某一参会者时， 往往包含该参会者的姓名。 例如： 张三， 最近你 的工作进展得怎么样了？或者， 下面请李四发言。
2、 被呼唤的参会者在发言人停止讲话后， 会优先发言。
基于上述认知， 参见图 3， 通过 "学习"获取对应关系的方法包括：
201a: MCU接收语音信号；
201b : MCU判断该语音信号是在呼唤某 '参会者， 当参会者应答后， 确定该参会者 对应的会场；
具体的， MCU通过语音识别技术判断语音信号是在呼唤某一参会者， 也即需要被呼 唤的参会者进行应答。 其中， 语音识别的具体过程为： 1 )识别语音信号是否包含姓名， 可以预设百家姓和习惯称呼， 例如， 老李等， 如果语音信号与预设的百家姓或习惯称呼 匹配， 则语音信号中包含姓名， 否则不包含姓名； 2 ) 预设呼唤参会者的语法， 语法包 括但不限于： 姓名出现在语言信号的最前面， 或者， "请"与姓名同时出现。 例如， 接 收的语音信号为"下面请李四发言", MCU通过语音识别技术判断该语音信号包括姓名"李 四"， 且与 "请" 同时出现， 则判断出是在呼唤 "李四"。
具体的， 当参会者应答后， 通过检测语音能量或检测语音活动性， 确定参会者对应 的会场。其中， 会场可以采用会场名称、地点、端口号、 ID等标识， 本实施例并不限定。
进一步的， MCU还可以判断该语音信号是正常的发言， 不需要切换视频， 仍然向各 个会场终端转发当前视频。 例如， 语音信号为 "本次会议的主题是环境保护"或 "这部 分工作由李四负责"等， 这些均为正常的发言， 不需要切换视频画面。 其中， 正常的发 言中也可能包含参会者姓名， MCU通过语音识别技术判断语音信号是提及了该参会者， 而不是呼唤参会者。
201c : 记录该参会者与该参会者对应的会场的对应关系。
例如： 视讯会议开始阶段， 各会场均未发言时， 参见图 4 , MCU中记录的对应关系 为空。其中， 终端 1为会场 1的终端， 终端 2为会场 2的终端， 终端 N为会场 N的终端。 当 "张三"在会场 1呼唤 "李四"、 "王五 "后， 参见图 5 , MCU记录到 "李四"对应会 场 2， "王五"对应会场 N。 此后， 若会场 1再呼唤 "李四"或 "王五"， MCU从记录的对 应关系中找到该姓名对应的会场，并将该会场视频画面发送给会场 1进行观看。会场 2、 会场 N未主动呼唤过其它会场， 故其记录仍然为空。
上述两种获取对应关系的方法均无需在语音中参杂特殊的控制命令， 提升了 "面对 面"的交流体验。 二者还分别有其优点： 第一种预先设置的方法， 简单、 易于实现。 第 二种 "学习" 的方法， 能够自动获取对应关系、 并随时更新。
202： MCU接收语音信号， 判断该语音信号是在呼唤参会者；
具体的， MCU通过语音识别技术判断该语音信号是在呼唤参会者。
进 ·步的， MCU还可以判断该语音信号是正常的发言， 不需耍切换视频， 仍然向各 个会场终端转发当前视频。 步骤 201b已经详细介绍， 这里不再赘述。
203： 判断该对应关系是否有该被呼唤的参会者， 如果有， 执行 204， 如果没有， 执 行 205 ;
204： MCU根据对应关系， 查找并将视频画面切换到被呼唤的参会者对应的会场； 205： 在被呼唤的参会者应答后， 获取被呼唤的参会者对应的会场， 记录被呼唤的 参会者 被呼唤的参会者对应的会场的对应关系。
具体的， 获取被呼唤的参会者对应的会场的方法包括但不限于： 通过检测语音能量 (或称检测语音包络） 或检测语音活动性， 确定被呼唤的参会者对应的会场。
其中，本实施例涉及的 MCU可以独立于各会场存在，也可以集成在某 ·会场终端中。 本实施例提供的方法， MCU通过获取参会者与会场的对应关系， 当呼唤参会者时， 在不需要参会者人为干预的情况下， 无须等待参会者应答， 就可以根据对应关系查找到 该被呼唤的参会者对应的会场，并将视频自动切换到该会场，保障了视讯会议的连续性， 并能够及时地切换视频画面， 提升了视讯会议中参会人员 "面对面"的交流体验。此外， 由 MUC获取对应关系并确定切换会场， 降低了对会场终端性能的要求， 便于统一管理对 应关系。
实施例 3
参见图 6 , 本实施例以会场终端获取对应关系为例进行说明， 则视频画面切换的方 法具体包括以下步骤：
301： 会场终端获取各个参会者与其会场的对应关系， 其中， 获取方法包括但不限 于：
1 ) 在各个会场终端预先设置各个参会者与其会场的对应关系；
2 ) MCU获取该对应关系后， 将该对应关系分发给各个终端会场； 其中， MCU获取该 对应关系的方法， 具体可以采用实施 2中提供的方法。
3 ) 通过学习获取该对应关系的方法， 参见图 7 , 具体包括以下步骤： 301a: 会场终端呼唤参会者；
301b : 当参会者应答后， 发起呼唤的会场终端接收 MCU发送的参会者对应的会场； 具体的， 参会者通过其会场终端进行应答后， MCU确定并发送参会者对应的会场， 其中， 确定参会者对应的会场的方法包括但不限于： 通过检测语音能量（或称检测语音 包络）或检测语音活动性， 确定参会者对应的会场。 另外， 参会者对应的会场可以采用 会场名称、 地点、 端口号、 ID等标识， 本实施例并不限定。
进 ·步的， 当 MCU集成在发起呼唤的会场终端时， 当参会者应答后， 发起呼唤的会 场终端获取参会者对应的会场。
301c : 发起呼唤的会场终端记录该参会者与该参会者对应的会场的对应关系。 上述三种获取对应关系的方法均无需在语音中参杂特殊的控制命令， 提升了 "面对 面"的交流体验。 三者还分别有其优点： 第一种预先设置的方法， 简单、 易于实现。 第 二种 MCU分发的方法， 便于集中管理， 降低了对会场终端性能的要求。 第三种 "学习" 的方法， 能够自动获取对应关系、 并随时更新。
302： 当会场终端呼唤参会者时， 判断该对应关系是否有该被呼唤的参会者， 如果 有， 执行 303， 如果没有， 执行 304;
303： 根据对应关系， 查找被呼唤的参会者对应的会场， 自动向 MCU发送视频切换 申请， 该视频切换申请包括被呼唤的参会者对应的会场标识， 使 MCU将视频画面切换到 被呼唤的参会者对应的会场；
304： 在被呼唤的参会者应答后， 获取被呼唤的参会者对应的会场， 记录被呼唤的 参会者与被呼唤的参会者对应的会场的对应关系。
其中， 获取被呼唤的参会者对应的会场的方法具体为： 接收 MCU发送的被呼唤的参 会者对应的会场。 其中， MCU获取并发送参会者对应的会场的方法， 详见 301b。
其中，本实施例涉及的 MCU可以独立于各会场存在，也可以集成在某一会场终端中。 本实施例提供的方法， 会场终端通过获取参会者与会场的对应关系， 当呼唤参会者 时， 在不需要参会者人为干预的情况下， 无须等待参会者应答， 就可以根据对应关系查 找到该被呼唤的参会者对应的会场， 并向 MCU申请将视频切换到该会场， 保障了视讯会 议的连续性， 并能够及时地切换视频画面， 提升了视讯会议中参会人员 "面对面"的交 流体验。
实施例 4
参见图 8 , 本实施例提供了一种视频画面切换的装置， 包括：
关系获取模块 401， 用于获取参会者与会场的对应关系； 会场查找模块 402， 用于当参会者被呼唤时， 根据关系获取模块 401得到的对应关 系， 查找被呼唤的参会者对应的会场；
视频切换模块 403 , 用于将视频画面切换到会场查找模块 402找到的被呼唤的参会 者对应的会场。
其中， 参见图 9， 关系获取模块 401包括：
语音接收单元 401a, 用于接收语音信号；
会场确定单元 401b， 用于通过语音识别技术判断语音接收单元 401a接收的语音信 号是在呼唤参会者， 当接收到参会者的应答后， 通过检测语音能量或检测语音活动性， 确定参会者对应的会场；
关系记录单元 401c , 用于记录参会者与会场确定单元 401b确定的参会者对应的会 场的对应关系。
或者， 关系获取模块 401包括：
关系设置单元 401d, 用于预先设置参会者 会场的对应关系。
进一步的， 装置还包括： 呼唤判断模块 404， 用于接收语音信号， 通过语音识别技 术判断语音信号是在呼唤参会者， 然后执行会场查找模块 402。
进 ·步的， 装置还包括： 关系判断模块 405, 用于判断关系获取模块 401获取的对 应关系是否有被呼唤的参会者， 当没有被呼唤的参会者时， 在被呼唤的参会者应答后， 获取被呼唤的参会者对应的会场，记录被呼唤的参会者与被呼唤的参会者对应的会场的 对应关系。
进一步的， 本实施例提供的装置具体可以是 MCU。
本实施例提供的装置， 通过获取参会者与会场的对应关系， 当呼唤参会者时， 在不 需要参会者人为干预的情况下， 无须等待参会者应答， 就可以根据对应关系查找到该被 呼唤的参会者对应的会场， 并将视频自动切换到该会场， 保障了视讯会议的连续性， 并 能够及时地切换视频画面， 提升了视讯会议中参会人员 "面对面" 的交流体验。 此外， 由本装置获取对应关系并确定切换会场， 降低了对会场终端性能的要求， 便于统一管理 对应关系。
实施例 5
参见图 10 , 本实施例提供了一种视频画面切换的装置， 包括：
关系获取模块 501， 用于获取参会者与会场的对应关系；
会场查找模块 502， 用于当参会者被呼唤时， 根据关系获取模块 501得到的对应关 系， 查找被呼唤的参会者对应的会场； 申请切换模块 503, 用于向多点控制单元发送视频切换申请， 该视频切换申请包括 被呼唤的参会者对应的会场标识，使多点控制单元将视频画面切换到被呼唤的参会者对 应的会场。
其中， 参见图 11 , 关系获取模块 501包括：
呼唤单元 501a， 用于呼唤参会者；
接收单元 501b， 用于当参会者应答后， 接收 MCU发送的参会者对应的会场； 或者， 用于当参会者应答后， 获取参会者对应的会场；
记录单元 501c，用于记录呼唤单元 501a呼唤的参会者与接收单元 501b接收的参会 者对应的会场的对应关系。
或者， 关系获取模块 501包括：
关系设置单元 501d， 用于预先设置参会者与会场的对应关系。
进一步的， 该装置还包括：
关系判断模块 504， 用于判断关系获取模块 501获取的对应关系是否有被呼唤的参 会者， 当没有被呼唤的参会者时， 在被呼唤的参会者应答后， 接收 MCU发送的被呼唤的 参会者对应的会场， 记录被呼唤的参会者与被呼唤的参会者对应的会场的对应关系。
进 ·步的， 本实施例提供的装置具体可以是会场终端。
本实施例提供的装置， 通过获取参会者与会场的对应关系， 当呼唤参会者时， 在不 需要参会者人为干预的情况下， 无须等待参会者应答， 就可以根据对应关系查找到该被 呼唤的参会者对应的会场， 并向 MCU申请将视频切换到该会场， 保障了视讯会议的连续 性， 并能够及时地切换视频画面， 提升了视讯会议中参会人员 "面对面" 的交流体验。
以上实施例提供的技术方案中的全部或部分内容可以通过软件编程实现，其软件程 序存储在可读取的存储介质中， 存储介质例如： 计算机中的硬盘、 光盘或软盘。
以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明的精神和原 则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权利要求
1、 一种视频画面切换的方法， 其特征在于， 所述方法包括：
获取参会者与会场的对应关系；
当参会者被呼唤时， 根据所述对应关系， 查找所述被呼唤的参会者对应的会场； 将视频画面切换到所述被呼唤的参会者对应的会场。
2、 如权利要求 1所述的方法， 其特征在于， 所述获取参会者与会场的对应关系包 括- 多点控制单元接收语音信号；
所述多点控制单元判断所述语音信号是在呼唤参会者， 接收到所述参会者的应答 后， 确定所述参会者对应的会场；
所述多点控制单元记录所述参会者与所述参会者对应的会场的对应关系。
3、 如权利要求 2所述的方法， 其特征在于， 所述多点控制单元判断所述语音信号 是在呼唤参会者， 接收到所述参会者的应答后， 确定所述参会者对应的会场包括： 所述多点控制单元通过语音识别技术判断所述语音信号是在呼唤参会者，接收到所 述参会者的应答后，通过检测语音能量或检测语音活动性，确定所述参会者对应的会场。
4、 如权利要求 1所述的方法， 其特征在于， 所述获取参会者与会场的对应关系包 括- 其他会场呼唤所述参会者， 所述其他会场是除所述会场之外的会场；
当所述参会者应答后，所述其他会场接收多点控制单元发送的所述参会者对应的会 场；
所述其他会场记录所述参会者与所述参会者对应的会场的对应关系；
相应的， 所述将视频画面切换到所述被呼唤的参会者对应的会场之前包括： 多点控制单元接收到所述其他会场发送的视频切换申请，所述视频切换申请包括所 述被呼唤的参会者对应的会场标识。
5、 如权利要求 1所述的方法， 其特征在于， 所述获取参会者与会场的对应关系包 括：
其他会场呼唤所述参会者， 所述其他会场是除所述会场之外的会场；
当所述参会者应答后， 所述其他会场获取所述参会者对应的会场；
所述其他会场记录所述参会者与所述参会者对应的会场的对应关系。
6、 如权利要求 1所述的方法， 其特征在于， 所述获取参会者与会场的对应关系包 括- 预先设置参会者与会场的对应关系。
7、 如权利要求 1所述的方法， 其特征在于， 所述当参会者被呼唤时， 根据所述对 应关系， 查找所述被呼唤的参会者对应的会场之前包括：
多点控制单元接收语音信号；
所述多点控制单元通过语音识别技术判断所述语音信号是在呼唤参会者。
8、 如权利要求 1所述的方法， 其特征在于， 当参会者被呼唤时， 所述根据所述对 应关系， 查找所述被呼唤的参会者对应的会场之前包括：
判断所述对应关系是否有所述被呼唤的参会者；
当没有所述被呼唤的参会者时， 在所述被呼唤的参会者应答后， 获取所述被呼唤的 参会者对应的会场；
记录所述被呼唤的参会者与所述被呼唤的参会者对应的会场的对应关系。
9、 一种视频画面切换的装置， 其特征在于， 所述装置包括：
关系获取模块， 用于获取参会者 会场的对应关系；
会场查找模块， 用于当参会者被呼唤时， 根据所述关系获取模块得到的对应关系， 查找所述被呼唤的参会者对应的会场；
视频切换模块，用于将视频画面切换到所述会场查找模块找到的被呼唤的参会者对 应的会场。
10、 如权利要求 9所述的装置， 其特征在于， 所述关系获取模块包括：
语音接收单元， 用于接收语音信号；
会场确定单元，用于通过语音识别技术判断所述语音接收单元接收的语音信号是在 呼唤参会者， 接收到所述参会者的应答后， 通过检测语音能量或检测语音活动性， 确定 所述参会者对应的会场；
关系记录单元，用于记录所述参会者与所述会场确定单元确定的参会者对应的会场 的对应关系。
11、 如权利要求 9所述的装置， 其特征在于， 所述关系获取模块包括：
关系设置单元， 用于预先设置参会者与会场的对应关系。
12、 如权利要求 9所述的装置， 其特征在于， 所述装置还包括： 呼唤判断模块， 用 于接收语音信号， 通过语音识别技术判断所述语音信号是在呼唤参会者， 然后执行会场 查找模块。
13、 如权利要求 9所述的装置， 其特征在于， 所述装置还包括： 关系判断模块， 用 于判断所述关系获取模块获取的对应关系是否有所述被呼唤的参会者， 当没有所述被呼 唤的参会者时， 在所述被呼唤的参会者应答后， 获取所述被呼唤的参会者对应的会场， 记录所述被呼唤的参会者与所述被呼唤的参会者对应的会场的对应关系。
14、 一种视频画面切换的装置， 其特征在于， 所述装置包括：
关系获取模块， 用于获取参会者与会场的对应关系；
会场查找模块， 用于当参会者被呼唤时， 根据所述关系获取模块得到的对应关系， 查找所述被呼唤的参会者对应的会场；
申请切换模块， 用于向多点控制单元发送视频切换申请， 所述视频切换申请包括所 述被呼唤的参会者对应的会场标识，使所述多点控制单元将视频画面切换到所述被呼唤 的参会者对应的会场。
15、 如权利要求 14所述的装置， 其特征在于， 所述关系获取模块包括： 呼唤单元， 用于呼唤所述参会者；
接收单元， 用于当所述参会者应答后， 接收所述多点控制单元发送的所述参会者对 应的会场； 或者， 用于当所述参会者应答后， 获取所述参会者对应的会场；
记录单元，用于记录所述呼唤单元呼唤的参会者与所述接收单元接收的参会者对应 的会场的对应关系。
16、 如权利要求 14所述的装置， 其特征在于， 所述关系获取模块包括： 关系设置单元， 用于预先设置参会者与会场的对应关系。
17、 如权利要求 14所述的装置， 其特征在于， 所述装置还包括：
关系判断模块，用于判断所述关系获取模块获取的对应关系是否有所述被呼唤的参 会者， 当没有所述被呼唤的参会者时， 在所述被呼唤的参会者应答后， 接收所述多点控 制单元发送的所述被呼唤的参会者对应的会场，记录所述被呼唤的参会者与所述被呼唤 的参会者对应的会场的对应关系。
PCT/CN2010/076770 2010-01-18 2010-09-09 视频画面切换的方法和装置 WO2011085594A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2010342701A AU2010342701B2 (en) 2010-01-18 2010-09-09 Method and device for switching video pictures
EP10842877.2A EP2528326B1 (en) 2010-01-18 2010-09-09 Method and device for switching video pictures
US13/552,444 US8704872B2 (en) 2010-01-18 2012-07-18 Method and device for switching video pictures

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010002289.2 2010-01-18
CN2010100022892A CN102131071B (zh) 2010-01-18 2010-01-18 视频画面切换的方法和装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/552,444 Continuation US8704872B2 (en) 2010-01-18 2012-07-18 Method and device for switching video pictures

Publications (1)

Publication Number Publication Date
WO2011085594A1 true WO2011085594A1 (zh) 2011-07-21

Family

ID=44268942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/076770 WO2011085594A1 (zh) 2010-01-18 2010-09-09 视频画面切换的方法和装置

Country Status (5)

Country Link
US (1) US8704872B2 (zh)
EP (1) EP2528326B1 (zh)
CN (1) CN102131071B (zh)
AU (1) AU2010342701B2 (zh)
WO (1) WO2011085594A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI469572B (zh) * 2011-10-31 2015-01-11 Hon Hai Prec Ind Co Ltd 電腦操控權控制方法及系統
CN102857732B (zh) * 2012-05-25 2015-12-09 华为技术有限公司 一种多画面视讯会议中的画面控制方法、设备及系统
CN104009968B (zh) * 2013-08-16 2017-04-05 宁波公众信息产业有限公司 一种视频调度的控制装置及方法
CN105915837B (zh) * 2016-05-30 2019-10-25 华为技术有限公司 一种视频切换方法、装置和系统
CN106354501B (zh) * 2016-08-29 2020-04-10 湖南湘能创业项目管理有限公司 一种会议拆分及界面切换方法
CN106992971B (zh) * 2017-03-09 2021-10-26 广州盈可视电子科技有限公司 一种互动终端切换方法、装置和一种互动录播系统
CN108574688B (zh) * 2017-09-18 2021-01-01 视联动力信息技术股份有限公司 一种参会方信息的显示方法和装置
CN110087021B (zh) * 2019-05-13 2021-02-26 上海黑驴影视传播有限公司 在线视频方法、装置及视频终端
CN110600036A (zh) * 2019-09-24 2019-12-20 随锐科技集团股份有限公司 基于语音识别的会议画面切换装置及其方法
CN112185360A (zh) * 2020-09-28 2021-01-05 苏州科达科技股份有限公司 语音数据识别方法、多人会议的语音激励方法及相关设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1934861A (zh) * 2004-03-25 2007-03-21 日本电气株式会社 多点会议系统及多点会议装置
US20080084831A1 (en) * 2006-09-27 2008-04-10 Nortel Networks Limited Active source identification for conference calls
CN101442654A (zh) * 2008-12-26 2009-05-27 深圳华为通信技术有限公司 视频通信中视频对象切换的方法、装置及系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9706810A (pt) * 1996-10-03 1999-08-31 Motorola Inc Aparelho de videofone, processo e sistema para telefonia e conferência por áudio e vìdeo com linha de fios.
JP4952581B2 (ja) * 2005-07-12 2012-06-13 日本電気株式会社 多地点会議システム、多地点会議方法及びプログラム
US8274543B2 (en) * 2007-07-02 2012-09-25 Polycom, Inc. Tag-aware multipoint switching for conferencing
US8269817B2 (en) * 2008-07-16 2012-09-18 Cisco Technology, Inc. Floor control in multi-point conference systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1934861A (zh) * 2004-03-25 2007-03-21 日本电气株式会社 多点会议系统及多点会议装置
US20080084831A1 (en) * 2006-09-27 2008-04-10 Nortel Networks Limited Active source identification for conference calls
CN101442654A (zh) * 2008-12-26 2009-05-27 深圳华为通信技术有限公司 视频通信中视频对象切换的方法、装置及系统

Also Published As

Publication number Publication date
EP2528326B1 (en) 2016-05-04
CN102131071B (zh) 2013-04-24
EP2528326A4 (en) 2013-07-24
US8704872B2 (en) 2014-04-22
AU2010342701B2 (en) 2014-10-23
US20120287230A1 (en) 2012-11-15
CN102131071A (zh) 2011-07-20
EP2528326A1 (en) 2012-11-28
AU2010342701A1 (en) 2012-08-23

Similar Documents

Publication Publication Date Title
WO2011085594A1 (zh) 视频画面切换的方法和装置
JP4372558B2 (ja) 電気通信システム
US9509953B2 (en) Media detection and packet distribution in a multipoint conference
US8531502B2 (en) Method, device and system for presenting virtual conference site of video conference
JP2008042889A (ja) インテリジェント音声制限方法、システム及びノード
WO2012055335A1 (zh) 会议控制方法及相关设备和系统
WO2010097044A1 (zh) 识别远程用户信号方法、远程会议处理方法、装置及系统
WO2012034329A1 (zh) 视频通话中视频录制的方法及装置
CN114845144B (zh) 一种投屏方法、辅助投屏装置及存储介质
US9013537B2 (en) Method, device, and network systems for controlling multiple auxiliary streams
WO2016206471A1 (zh) 多媒体业务处理方法、系统及装置
WO2021179674A1 (zh) 数据播放方法和装置
CN110636243B (zh) 一种会议控制方法及mcu
WO2022007618A1 (zh) 视频通话方法及显示设备
TWI636691B (zh) 視訊畫面智能切換方法及其系統
WO2011153926A1 (zh) 会场图像广播方法及多点控制单元
WO2012155732A1 (zh) 移动终端以及基于移动终端实现远程会议的方法
CN113630575A (zh) 多人在线视频会议图像显示的方法、系统和存储介质
JP2017158137A (ja) 会議システム
TW200843470A (en) Communication Framework and Method and System for Providing a Real-Time Audio and/or Video Signal
WO2024036945A1 (zh) 一种导播控制方法及装置
WO2023005487A1 (zh) 音视频会议实现方法、音视频会议系统及相关装置
JP2010130363A (ja) 電話システムおよび電話制御方法
JP2008005036A (ja) テレビ電話着信方法及びプログラム
JPH04371058A (ja) 多地点テレビ会議システム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10842877

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2010842877

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2010342701

Country of ref document: AU

ENP Entry into the national phase

Ref document number: 2010342701

Country of ref document: AU

Date of ref document: 20100909

Kind code of ref document: A