Videoconferencing is the simultaneous two-way audio communication and video, allowing meetings with groups of people located in places far apart. Additionally, they can offer telematic facilities and other information as the exchange of graphics, still images, transmission of files from pc, etc. The core technology used in a videoconferencing system is digital compression of audio and video streams in real time. Its implementation provides significant benefits, such as the collaborative work between geographically distant people and greater integration between work groups
Al system that allows us to conduct the meeting of several individuals located at distant sites and establish a conversation as they would if all were gathered in a meeting room system called "videoconferencing."
As with all new technologies, the terms used are not clearly defined. The word "Conference Call" is formed by the prefix "tele" meaning away, and the word "conference" which refers to a meeting, so that combined provide for a remote meeting.
In the U.S. the word teleconferencing is used as a generic term to refer to any meeting by means of remote communications technology, in such a way that is often added the word video to "conference" or "conference "to specify exactly which type of encounter is becoming mention. Likewise, the term is often used "audio conference" to make mention of a conference held by audio signals.
The term "video" has been used in the United States to describe the transmission of video in one direction usually by satellites and an audio response via telephone lines to provide an interactive link with the organization.
conference in Europe the word refers specifically to conferences or phone calls, and the word "video" is used to describe the two-way communication of audio and video. This two-way communication of audio and video is what we call "video."
There are some terms that may create confusion regarding the videoconference, such as the term "interactive television", this term has been used to describe the interaction between a person and an educational program recorded on a compact disc (Laser disc) but does not require the transmission of video.
During the development of this subject, it will use the term "video" to describe the two-way communication between two points or interactive geographically separated using audio and video.
Videoconferencing can be divided into two areas:
Group Videoconferencing or Videoconference room to room with compressed video communications at speeds from 64 Kbps (E0, a voice channel) up to 2,048 mbps (E1, 30 voice channels) and Video Telephony
, which is associated with RedDigital Services Integrated better known by the acronym "ISDN" operating at speeds of 64 to 128 Kbps This form of videoconferencing is associated with personal communication and videoconferencing desk to desk. During the development of this and subsequent chapters, will use the term referring to the way video conferencing group or room to room.
0 comments:
Post a Comment