WO2010076759A2 - Système de commande de conférence - Google Patents

Système de commande de conférence Download PDF

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Publication number
WO2010076759A2
WO2010076759A2 PCT/IB2009/055971 IB2009055971W WO2010076759A2 WO 2010076759 A2 WO2010076759 A2 WO 2010076759A2 IB 2009055971 W IB2009055971 W IB 2009055971W WO 2010076759 A2 WO2010076759 A2 WO 2010076759A2
Authority
WO
WIPO (PCT)
Prior art keywords
conference
active speaker
conference control
voice
terminals
Prior art date
Application number
PCT/IB2009/055971
Other languages
English (en)
Other versions
WO2010076759A3 (fr
Inventor
Mehmet Emin Ozgul
Original Assignee
Turkcell Teknoloji Arastirma Ve Gelistirme Anonim Sirketi
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 Turkcell Teknoloji Arastirma Ve Gelistirme Anonim Sirketi filed Critical Turkcell Teknoloji Arastirma Ve Gelistirme Anonim Sirketi
Publication of WO2010076759A2 publication Critical patent/WO2010076759A2/fr
Publication of WO2010076759A3 publication Critical patent/WO2010076759A3/fr

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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

Definitions

  • the present invention relates to a conference control system which enables the host of a conference to select the members, conference and environment values, and comprises a switcher which enables data exchange with the terminals, and enables the active speaker to be selected according to the voice levels and the priority levels.
  • GPRS Information transfer rate has increased much more with the package exchange application.
  • This application is called GPRS.
  • Cell services in which GPRS is used are called as 2.5G technology.
  • GPRS allows information transfer rates till 56-114 kbit/s.
  • GPRS application can be used in WAP, SMS and MMS services as well as internet connection.
  • the cell services wherein EDGE (or EGPRS) application, which is has higher speed than 2.5G technology, is used are called as 2.75G.
  • EDGE means enhanced GPRS and reaches to the information transfer rate of 236,8 kbit/s.
  • the third generation communication standards which reach to the information transfer rates of 2 Mbit/s are defined as 3 G technology. Due to such a high data transfer rates, it is possible to use the applications such as video, television, listening to the music, videophone talk through internet with the phones having 3G technology. In addition, by means of this technology videoconference can be made with these phones.
  • H.324m The communication protocol which is required to carry out videoconference with 3G technology is H.324m.
  • H.324m protocol works in the circuit-switching connections established between the two terminals. This feature requires adaptor within the connections comprising more than two terminals. Moreover, as the telephone screen is low resolution, it causes practical problems that the screen is divided so as to show all images in the conference connections. Apart from these problems, it is causes protocol compatibility problems that H.324m protocol requires using different video channels instead of divided images. As another problem, H.324m protocol does not enable the negotiation process which is realize to select environment values set comprising terminal multiplexing, error detection and correction, control channel, audio and video features to be updated after the process has been completed. Therefore, in order that the terminals that may comprise different features sets can communicate with each other, data are required to be converted real-timely. Finally, due to continuous conversion, requirements of high-performance processor and CODEC necessary for conversion of each terminal increase the cost.
  • control program allows host of a conference call to designate other hosts, create private meetings among conference call participants, mute any number of participants in relation to each other, or completely exclude participants.
  • the participants may also send messages to other participants or the host.
  • the objective of the present invention is to realize a conference control system which enables the host of a conference to select members, to control and to select priority levels of the members, to select start date of the conference and participation password and environment values set.
  • Another objective of the present invention is to realize a conference control system which enables selection of the active speaker according to voice level received from the terminal and priority levels.
  • a further objective of the present invention is to realize a switcher which enables data exchange between the control system and the terminals.
  • Figure 1 is a schematic view of the inventive conference control system.
  • the inventive conference control system (1) essentially comprises:
  • At least one conference control unit (2) which decides on selection of the video to be sent to the screen of the terminals (4,5,6) participated into the conference,
  • At least one switcher (3) which enables transmission of the video and voice information coming from the terminals (4,5,6) to the other terminals (4,5,6) under the control of said system.
  • the first terminal (4) makes a video call to the conference system (1), and this call is received by the switcher (3).
  • the switcher (3) replies to the incoming call, completes H.324m negotiation process, and saves the agreed parameter set as the environment values set.
  • the switcher (3) sends the call control to the conference control unit (2).
  • the first terminal (4) and the conference control unit (2) allow creating the conference, selecting the members, selecting the start date of the conference, participation password and environment values set by means of mutual communication.
  • This negotiation and selections are conducted through the switcher (3) between the first terminal (4) and the conference control unit (2).
  • the first terminal (4) adjusts the settings of:
  • selecting the method for determination of values to be used as valid H.324m environment values set i. so as to be the environment values set of the terminal with which the first connection is established (if selection is not made, this choice is used automatically), (DEG-I) ii. so as to be the environment values set of a selected terminal, (DEG-2) iii. so as to determine each environment value manually, (DEG-3) iv. so as to use the common values set determined for the conference control system (DEG-4).
  • the members are informed about the start date, time, address and password of the conference by means of SMS, e-mail, voice or video call via the conference control unit (2).
  • the user which receives the conference invitation makes a video call to the number which has made an invitation, and is responded by the switcher (3).
  • the switcher (3) which responds the call controls whether the newly connected terminal (5,6) is a H.324m environment values set:
  • the switcher (3) tries to condition this terminal (5,6) so as to use the parameters selected during H.324m negotiation process,
  • the conference control unit (2) sends the request for calling the terminals (5,6) which will be included in the conference to the switcher (3).
  • the switcher (3) initiates a video call to the terminal (5,6). If the terminal responds, the terminal is added into the conference as a result of the KO ⁇ -1 conditioning steps. If the terminal does not respond, or connection cannot be established, the request for the connection is postponed to a later date.
  • Terminals (5,6) which fulfill KO ⁇ -1 conditioning steps enter the password which identifies them if it is sent with the notification, and are added to the conference. Thereby, bidirectional voice, video and call channels between the terminals (4,5,6) and the switcher (3) are established.
  • the switcher (3) and the conference control unit (2) process the voice and video data coming from the terminals (4,5,6) and decide on the video and voice data which will be distributed to the terminals (4,5,6) by working together.
  • the video of the active terminal and all voices coming from terminals entitled to speak or to make bidirectional conversation in accordance with their participation levels are sent to all terminals (4,5,6). If there are terminals which cannot fulfills KO ⁇ -1 conditioning step, voice and video data are sent to these terminals by being converted.
  • the video which the active speaker will see can be video sources such as his/her video, video of the terminal. which s/he has selected, or blank screen/static picture/advertisement/clock.
  • the active speaker makes selection according to the following criteria:
  • the members who are entitled to change the active speaker according to the control level can change the active speaker or designate themselves as active speaker by means of an external channel, telephone keypad or the inputs such as voice recognition system in communication with the conference control.
  • voice levels/powers of the members entitled to speak in the conference are observed continuously. If there is an increase in the voice level/power coming from a terminal having such right which is in silence, and if there is not any active speaker at that moment, or if there is an active speaker, but the priority level of the terminal in which voice level/power change occurs is equal to or higher than the priority level of the active speaker, then the terminal in which there is an increase in voice level/power is assigned as active speaker.
  • the switcher (3) assigns voice and video channels sent to the terminals (4,5,6) in accordance with the active speaker.
  • the switcher (3) observes continuously the voice and video channels of the terminals (4,5,6) which are entitled to be an active speaker, and saves the information on their latest status.
  • the switcher (3) requests update from the new active speaker, or uses the information which it has saved when the active speaker changes. Thereby, there is not an interruption or deterioration in the voice or video stream when the active speaker changes, and full refresh and key frame are enabled to be realized.
  • the members which are entitled to change the active speaker can designate themselves as active speaker by means of the methods identified by the conference control unit (2).
  • the methods identified by the conference control unit (2) may be realized by entering the password through an external channel, phone keypad or uttering the same via the voice recognition system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La présente invention concerne un système de commande de conférence (1) qui permet à l'hôte d'une conférence de sélectionner l'ensemble des valeurs d'environnement, de sélectionner des membres, de contrôler et d'établir les niveaux de priorité des membres, une date de début de la conférence et le mot de passe de participation et l'ensemble des valeurs d'environnement, et qui permet une notification de la date et de l'heure de début, de l'adresse et du mot de passe de la conférence aux terminaux (4, 5, 6) au moyen des procédés tels que SMS, courrier électronique ou appel vocal/vidéo, qui offre la possibilité de sélectionner les participants actifs selon le niveau/la puissance vocal(e) sortant des terminaux (4, 5, 6) et selon les niveaux de priorité, et grâce auquel une transmission de données entre les terminaux (4, 5, 6) et l'unité de commande de conférence (2) est possible.
PCT/IB2009/055971 2008-12-31 2009-12-29 Système de commande de conférence WO2010076759A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2008/10096 2008-12-31
TR2008/10096A TR200810096A2 (tr) 2008-12-31 2008-12-31 Bir konferans kontrol sistemi

Publications (2)

Publication Number Publication Date
WO2010076759A2 true WO2010076759A2 (fr) 2010-07-08
WO2010076759A3 WO2010076759A3 (fr) 2010-09-30

Family

ID=42262095

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/055971 WO2010076759A2 (fr) 2008-12-31 2009-12-29 Système de commande de conférence

Country Status (2)

Country Link
TR (1) TR200810096A2 (fr)
WO (1) WO2010076759A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2899969A4 (fr) * 2012-09-24 2016-01-06 Zte Corp Procédé et dispositif de traitement pour compensation de perte de paquets dans un système de visioconférence

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5959667A (en) * 1996-05-09 1999-09-28 Vtel Corporation Voice activated camera preset selection system and method of operation
WO2005036878A1 (fr) * 2003-10-08 2005-04-21 Cisco Technology, Inc. Systeme et procede de realisation d'une videoconference repartie
WO2008019342A2 (fr) * 2006-08-04 2008-02-14 Multimedia Telesys, Inc. Systèmes et procédés de conférence pour participants administrés et externes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5959667A (en) * 1996-05-09 1999-09-28 Vtel Corporation Voice activated camera preset selection system and method of operation
WO2005036878A1 (fr) * 2003-10-08 2005-04-21 Cisco Technology, Inc. Systeme et procede de realisation d'une videoconference repartie
WO2008019342A2 (fr) * 2006-08-04 2008-02-14 Multimedia Telesys, Inc. Systèmes et procédés de conférence pour participants administrés et externes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2899969A4 (fr) * 2012-09-24 2016-01-06 Zte Corp Procédé et dispositif de traitement pour compensation de perte de paquets dans un système de visioconférence
US9634798B2 (en) 2012-09-24 2017-04-25 Zte Corporation Processing method and device for packet loss compensation in video-conferencing system

Also Published As

Publication number Publication date
TR200810096A2 (tr) 2010-07-21
WO2010076759A3 (fr) 2010-09-30

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