The new technology is not developing smoothly and videoconferencing is more than part of the maze before it becomes a widely used communication needle. The earliest form of videoconferencing dates back to the 1960s when AT & T introduced Picturephone at the New York World Expo. While viewed as an astonishing curiosity, it never became popular and too expensive to be practical for most consumers when it was offered for $ 160 for the month of 1970. The commercial use of real video conferencing is firstly the Ericsson transatlantic LME video call. Shortly afterwards, other companies began refining videoconferencing technologies, including the development of 1976 Network Video Protocol (NVP) and Packet Protocol Protocol (PVP) in 1981. However, none of these have been used for commercial purposes or use. In 1976, Nippon Telegraph and Telephone Company established video conferencing (VC) between Tokyo and Osaka for corporate use. IBM Japan was in 1982 by setting up a 48,000bps VC to connect with existing IBM video conferencing connections already established in the United States to meet every week. The 1980s commercial videoconferencing was introduced in 1982, Compression Labs introduces its VC system to the world for $ 250,000, and rows to $ 1,000 per hour. The system was huge and used enormous resources capable of turning off 15 A circuit breakers. However, it was the only operating VC system while PictureTel VC did not reach the market in 1986 with a much cheaper $ 80,000 system at $ 100 per hour. There were other video conferencing systems between the two commercially available systems that were never commercially offered. The history of videoconferencing is incomplete, without mentioning these systems, which are prototypes or systems that have been specifically designed for home use by various companies or organizations, including the military. In about 1984, Datapoint used the Datapoint MINX system at the Texas campus and made the system available to the military. By the late 1980s, Mitsubishi began selling a still image that was basically a flop on the market. Two years after the introduction fell. In 1991, IBM – PicTel introduced the first computer video conferencing system. It was a black and white system that was incredibly cheap at $ 30 / hour at the time, while the system itself was $ 20,000. In June of that same year, DARTnet successfully combined a transcontinental IP network with dozens of research sites in the United States and Great Britain with T1 strains. Today, DARTnet has evolved into the CAIRN system, which connects dozens of institutions. CU-SeeMe revolutionizes videoconferencing One of the most famous videoconferencing systems is CU-SeeMe, which was developed for MacIntosh in 1992. Although the first version had no sound, this was the best video system, right. By 1993 the MAC program had several points and in 1994 the CU-SeeMe MAC was a true video conference sound. Recognizing the limitations of MAC compatibility in the Windows world, developers worked diligently on the CU-Seeme for Windows (non-audio) release of April 1994, closely followed by the 1995 CU-SeeMe v0.66b1 Windows version. In 1992, AT & T introduced its own $ 1,500 video phone on its home market. It was a great success. In the same year, the world's first MBone audio / video broadcasts took place, and INRIA's video conferencing system was introduced in July. This is the year that saw the first real explosion in video conferencing for businesses around the world and ultimately led to ITU standards. The International Telecommunication Union is developing coding standards In 1996, the International Telecommunication Union (ITU) began developing standards for video encoding when establishing the H.263 standard to reduce bandwidth for low-speed data transmission. Other standards have been developed, including H.323 packet-based multimedia communications. These various telecommunications standards were revised and updated in 1998. In 1999, the MPEG-4 standard was developed by the Moving Picture Experts Group as an ISO standard for multimedia content. In 1993, VocalChat Novell IPX networks introduced their videoconferencing system but lost and did not start from the beginning. Microsoft eventually joined the videoconference bandwagon with a descendant of PictureTel Liveshare Plus in August 1996, NetMeeting (although there was no video in this release). By December of the same year Microsoft NetMeeting v2.0b2 video appeared. In the same month, VocalTec Internet Phone v4.0 for Windows was introduced. VRVS is Connected to Global Research Centers The Caltech-CERN Virtual System Videoconferencing System (VRVS) project was launched in July 1997. VRVS has been specifically developed to provide videoconferencing to researchers from the vast Hadron Collider project and the High Energy and Nuclear Physical Community in the United States and Europe. It was so successful that seeds were separated from the second phase, CalREN-2, to improve and extend the existing VRVS system to extend genetics, doctors, and many other scientists. video conferencing network around the world. The Cornell University Development Team released CU-SeeMe v1.0 in 1998. This color video version was compatible with both Windows and Macintosh and was a huge step forward in pc video conferencing. By May of this year the team moved to other projects. In February 1999, MMUSIC launched the Session Initiation Protocol (SIP) protocol. The platform showed some advantage over H.323, which was highly appreciated and soon became popular by the user. 1999 was very busy with the appearance of NetMeeting v3.0b, which was quickly followed by three versions of ITU H.323. Next came the release of iVisit v2.3b5 for both Windows and Mac, followed by Media Gateway Control Protocol (MGCP) Version 1. In December, Microsoft released NetMeeting v3.01 (4.4.3388) and ISO standard The second version of MPEG-4 appeared. Finally, PSInet was the first company to launch H.323 automated multipoint services. As we said, 1999 was very busy. In November 2000, SIP entered version 1.30, the same year that H.323 standard version 4 and Samsung released its MPEG-4 streaming 3G video card, the first such. Especially in Japan there was a hit. Microsoft NetMeeting has had to calculate a different service pack for version 3.01 quite predictably. In 2001, Windows XP Messenger announced that it now supports the Session Initiation Protocol protocol. The same year was the year when the world's first transatlantic telecommunications operation took place via videoconferencing. In this case, video conferencing played an important role in using the US surgeon to use an overseas robot to perform a gallbladder operation. This was one of the most important non-commercial uses of videoconferencing history and brought technology to the medical profession and the general public. In October 2001, television reporters began broadcasting a portable satellite and a video sound during a war in Afghanistan. This was the first application of videoconferencing technology to broadcast live videos in a war zone, placing video conferencing again at the forefront of people's imagination. In December 2001, the joint video team founded the basic research leading to ITU-T H.264 before December 2002. This protocol offers standardized compression technology for both MPEG-4 and ITU-T in a wide range of applications. even more versatile than its predecessors. In March 2003, the new technology is ready to launch the industry. New uses for videoconferencing technologies In 2003, the use of videoconferencing was also experienced in off-campus classrooms. Interactive classrooms became more and more popular as the streaming video quality has increased and the delay has decreased. Companies such as VBrick have delivered different MPEG-4 systems to colleges across the country. Desktop video conferencing is also growing and becoming more popular. On the market, new companies are now refining performance details along with transmitting nuts and bolts. In April 2004, Applied Global Technologies developed a built-in video camera for video conferencing that follows the voice of various speakers to talk to the speaker during a conference call. In March 2004, Linux announced the GnomeMeeting, a H.323 compatible, free video conferencing platform that is NetMeeting compatible. With the continuous development of video conferencing systems, it seems obvious that technology will continue to evolve and form an integral part of business and life. New advances and systems become more affordable, remember that the choices are still determined by the network type, system requirements, and the needs of a specific conference. This article was re-released under the title "Video Conferencing History".
Copyright © 2004 Evaluseek Publishing.
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