Video conferencing

1、Definition:Videoconferencing is the conduct of a videoconference (also known as a video conference or videoteleconference) by a set of telecommunication technologies which allow two or more locations to communicate by simultaneous two-way video and audio transmissions. It has also been called visual

2、 collaboration and is a type of groupware .The structure of video conference:The structure of video conference:）In 1964, video conference appeared on the New York World Expo.）In 1970, AT&T launched a video telephone service.）Nippon Telegraph and Telephone and constructed video conference system betw

3、een Tokyo and Osaka in 1976）AT&T Compression Labs has announced the first real VC system in 1982, Picture Tel published a practical and cheaper VC products in 1986.）ITU-T (ITU Telecom Council) announced video conference standard protocol -H.323 for LAN in March 1997.）In 2006, video conference develo

4、ped to a new milepost, the HD video conference appeared.）Fusion of video conferencing software and video conferencing hardware.）The low bandwidth and high quality of audio and video.）Sharing and collaboration）Simple and quick meeting experience）Mobile terminal access (BYOD)）Acquisition and display o

5、f image）Acquisition and playback of sound）Data collaboration featuresEasy to deployIntegrated data conference Low cost Easy to use Support multi scene Multiple video conference structureImpact on the general public Impact on government and law Impact on education Impact on medicine and health Impact

6、 on sign language communications Impact on business Impact on media relations Impact on the general public:High speed Internet connectivity has become more widely available at a reasonable cost and the cost of video capture and display technology has decreased. Consequently, personal videoconferenci

7、ng systems based on a webcam, personal computer system, software compression and broadband Internet connectivity have become affordable to the general public. And videoconferencing can be used directly between two deaf signers. Impact on government and law:In the United States, videoconferencing has

8、 allowed testimony to be used for an individual who is unable or prefers not to attend the physical legal settings, or would be subjected to severe psychological stress in doing so. The U.S. Social Security Administration (SSA), which oversees the worlds largest administrative judicial system under

9、its Office of Disability Adjudication and Review (ODAR), has made extensive use of videoconferencing to conduct hearings at remote locations. In Fiscal Year (FY) 2009, the U.S. Social Security Administration (SSA) conducted 86,320 video conferenced hearings, a 55% increase over FY 2008. In August 20

10、10, the SSA opened its fifth and largest videoconferencing-only National Hearing Center (NHC), in St. Louis, Missouri. This continues the SSA s effort to use video hearings as a means to clear its substantial hearing backlog. Since 2007, the SSA has also established NHCs in Albuquerque, New Mexico,

11、Baltimore, Maryland, Falls Church and so on.Impact on education:Videoconferencing provides students with the opportunity to learn by participating in two-way communication forums. Furthermore, teachers and lecturers worldwide can be brought to remote or otherwise isolated educational facilities. Stu

12、dents from diverse communities and backgrounds can come together to learn about one another, although language barriers will continue to persist. Such students are able to explore, communicate, analyze and share information and ideas with one another. Through videoconferencing, students can visit ot

13、her parts of the world to speak with their peers, and visit museums and educational facilities. Such virtual field trips can provide enriched learning opportunities to students.Impact on medicine and health:Videoconferencing is a highly useful technology for real-time telemedicine and telenursing ap

14、plications, such as diagnosis, consulting, transmission of medical images, etc. With videoconferencing, patients may contact nurses and physicians in emergency or routine situations; physicians and other paramedical professionals can discuss cases across large distances. Rural areas can use this tec

15、hnology for diagnostic purposes, thus saving lives and making more efficient use of health care money. Impact on sign language communications:A video relay service (VRS), also known as a video interpreting service (VIS), is a service that allows deaf, hard-of-hearing and speech-impaired (D-HOH-SI) i

16、ndividuals to communicate by videoconferencing (or similar technologies) with hearing people in real-time, via a sign language interpreter.Impact on business :Videoconferencing can enable individuals in distant locations to participate in meetings on short notice, with time and money savings. The te

17、chnology is also used for telecommuting, in which employees work from home.Videoconferencing is also currently being introduced on online networking websites, in order to help businesses form profitable relationships quickly and efficiently without leaving their place of work. Impact on media relati

18、ons:Press videoconferencing permits international press conferences via videoconferencing over the Internet. Journalists can participate on an international press conference from any location, without leaving their offices or countries. They need only be seated by a computer connected to the Internet in order to ask their ques