Video Phones

No new technology develops smoothly, and video conferencing had more than its share of bumps along the way before becoming the widely used communications staple it is today. The history of video conferencing in its earliest form dates back to 1960, when AT & T introduced the phone in Picture World's Fair in New York. Although regarded as a fascinating curiosity, it never became popular and was too expensive to be practical for most consumers, if presented with$ 160 per month in 1970. Commercial use of real video conferencing for the first time realized with Ericsson demonstrated the first trans-Atlantic LME video telephone call. Soon other companies began refining video conferencing technologies, including developments such as network video protocol (NVP) in 1976 and packet video protocol (PTP) in 1981. None of these were in commercial use, however, and in the laboratory or a private commercial use. In1976, Nippon Telegraph and Telephone established video conferencing (VC) between Tokyo and Osaka for company use. IBM Japan in 1982, followed suit by establishing VC running at 48000bps to link up with IBM's existing videoconferencing links inside the United States, in order to have weekly meetings. Since 1980 began trading in video-conference in 1982, Compression Labs set their system of venture capital in the world for $ 250,000 with lines for $ 1,000Hour. The system is great and is able to spend enormous resources of intervention 15 amp circuit. But it was the only working VC system available until PictureTel VC hit the market in 1986 with their substantially cheaper $ 80,000 system with $ 100 per hour lines. In the period between the two systems for sale, there were other videoconferencing systems that never sold. The history of video conferencing is not completewithout mentioning these systems that are either prototypes or systems developed specifically for in-house using a range of companies and organizations, including the military. Around 1984, the use of System Data Point Data Point Minx on their Texas campus, and provided the military regime. At the end of 1980, Mitsubishi began selling a picture phone that was basically still a market failure. They attack the line two years after its implementation. In 1991,first in the video conferencing system for PCs, IBM – PicTel. It was a black and white with what was then a very affordable $ 30 per hour for the lines, while the system itself was $ 20,000. In June of that year, DARTnet successfully connected a transcontinental IP network of more than a dozen research centers in the United States and Britain with T1 trunks. Today DARTnet developed in the Cairns system, which connects dozens of institutions.CU-Lauri revolutionize videoconferencing One of the most popular in the history of video conferencing was the CU-Lauri developed for the Macintosh in 1992. While the first version was not playing the best video system developed to the point. Before 1993, the MAC program had multipoint capability, and in 1994 CU Lauri MAC was true video conferencing with audio. Recognition of the limits of compatibility with the Mac into a Windows worldThe developers worked diligently to roll out in April 1994 CU-Lauri for Windows (no audio), followed closely by the audio version of CU-Lauri v0.66b1 for Windows in August 1995. In 1992, AT & T rolled their $ 1,500 video phone for the domestic market. It 'been a successful border. In the same year the first MBONE audio and video broadcast took place in July INRIA videoconferencing system was introduced. This is the year, so the first realexplosion in video conferencing for businesses around the world and eventually led to the standards developed by ITU. International Telecommunications Union develops coding standards of the International Telecommunication Union (ITU), the development of standards for video conferencing coding in 1996, when a standard H.263 to reduce bandwidth, frequency of communication for the transmission of bits low. Other standards are developed, including H.323 for packet-basedmultimedia communications. This is a series of Telecommunications Standards have been revised and updated in 1998. In 1999, MPEG-4 standard was developed by the Moving Picture Experts Group as an ISO standard for multimedia content. In 1993, Novell IPX networks introduced Vocal IM videoconferencing system, but it was doomed from the start or not. Microsoft finally to board the train video conferences with NetMeeting, a descendent of PictureTel'sLive Hare Plus, in August 1996 (although not in this video version). In December of that year, Microsoft NetMeeting v2.0b2 with video were released. The same month, Internet Phone v4.0 for Windows is Vocaltech introduced. VRVS links global research centers, The Virtual Room Videoconferencing System (VRVS) project at Caltech-CERN began in July 1997. They developed the VRVS specifically to provide researchers with videoconferencingLarge Hadron Collider Project and scientists in high-energy and Nuclear Physics Community in the United States and Europe. It 'was so successful that seed money for phase two which CALRE-2, improving and expanding the already-place VRVS system in order to expand geneticists, doctors nearby, and many other scientists of the videoconferencing network worldwide . development team at Cornell University, CU-Lauri v1.0 released in 1998. This colorvideo version is compatible with both Windows and Macintosh, and a breakthrough in computer video conferencing. In May of that year he moved the team to other projects. In February 1999 Session Initiation Protocol (SIP) was launched by mmusic. The platform has some advantages such as H.323 uses precious, and soon it was almost as popular. 1999 was a very busy year, with NetMeeting v3.0b coming out, followed quickly by version three of the ITU H.323 standard. SoThen 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 a service pack for NetMeeting v3.01 (4.4.3388) and a standard ISO MPEG-4 version two was released. Finally PSInet H.323 was the first automatic multi-service building. As we said, 1999 was a very busy year. SIP has entered version 1.30 in November 2000, the same year that the H.323 standard hit 4, and Samsung releasedtheir MPEG-4 streaming 3G video mobile phone, the first of its kind. It 'was a success, especially in Japan. Rather predictably, Microsoft NetMeeting has a second version of Service Pack to version 3.01. In 2001, Windows XP messenger announced that it will support Session Initiation Protocol. In the same year the world's first Atlantic Tele-surgery occurred exploit videoconferencing. In this case, video conferencing was instrumentalallows a surgeon in the United States gallbladder surgery overseas to run a robot on a patient. It 'been a convincing non-commercial use most in the history of video conferencing, technology and awareness of the medical profession and the general public. In October 2001, began satellite television journalists with a laptop and a videophone to broadcast live from Afghanistan during the war. It 'was the first use of videoconferencing technologyto communicate directly with the video with someone in a war zone, again bringing video conferencing to the forefront of people's imagination. Since its inception in December 2001 and the Joint Video Team completed basic research leading to ITU-T H.264 by December 2002. This protocol standardized video compression technology for MPEG-4 and ITU-T on a wide range of applications, making it easier to handle than its predecessors. In March 2003, the new technologyready for the launch of the industry. New uses for video conferencing technology, 2003 also saw increased use of video conferencing for off-campus classrooms. interactive class is more popular than the quality of video streaming and increased pressure decreased. Companies such as VBrick provided various MPEG-4 systems to schools throughout the country. Desktop videoconferencing is on the rise and popularity. Companies newer to the marketNow refine the details of performance in addition to nuts and bolts of transmission. In April 2004, Applied Global Technologies developed a voice activated camera for use in videoconferencing, follow the various speakers to focus on who will speak during a conference call. In March 2004, Linux is known, the release of Gnome Meeting, an H.323 compliant, free video conferencing platform that is compatible NetMeeting. With the continuous progressin videoconferencing, it seems clear that technology will continue to evolve and become an integral part of business and personal life. As new advances are made and systems more accessible, we must remember that elections are still determined by the type of network, system requirements and what your needs are collected. This article on "The History of Video Conferencing" reprinted with permission.

Copyright © 2004 EvaluseekPublishing.

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