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- Number of terms: 20560
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- Company Profile:
Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
A system which requires more processing capability to compress an image than to decompress an image. It is typically used for the mass distribution of programs on media such as CD-ROM, where significant expense can be incurred for the production and compression of the program but the playback system must be low in cost.
Industry:Entertainment
A device used to combine video signals from two or more sources. Inputs are synchronized, then mixed along with various special effects patterns and shapes. A video mixer usually generates sync signals allowing genlocking of additional video sources to the first source.
Industry:Entertainment
a) A digital transmission system using packets of 53 bytes for transmission. ATM may be used for LANs and WANs. ATM is a switching/transmission technique where data is transmitted in small, 53-byte fixed sized cells (5-byte header, 48-byte payload). The cells lend themselves both to the time-division-multiplexing characteristics of the transmission media, and the packet switching characteristics desired of data networks. At each switching node, the ATM header identifies a virtual path or virtual circuit that the cell contains data for, enabling the switch to forward the cell to the correct next-hop trunk. The virtual path is set up through the involved switches when two endpoints wish to communicate.
This type of switching can be implemented in hardware, almost essential when trunk speeds range from 45 Mb/s to 1 Gb/s. The ATM Forum, a worldwide organization, aimed at promoting ATM within the industry and the end-user community was formed in October 1991 and currently includes more than 500 companies representing all sectors of the communications and computer industries, as well as a number of government agencies, research organizations, and users.
b) A digital signal protocol for efficient transport of both constant-rate and bursty information in broadband digital networks.
Industry:Entertainment
A terms used to describe a meeting between two or more people that is not held in person, but rather using video as a communication tool. Each party in the conference has a video receiver to view the other participants, and, optionally, a video broadcaster (such as a webcam) to broadcaster his/her image to the other participants.
Industry:Entertainment
Although sometimes used interchangeably, advanced and high-definition television hdtv are not one and the same. Advanced television (ATV) would distribute wide-screen television signals with resolution substantially better than current systems. It requires changes to current emission regulations, including transmission standards. In addition, ATV would offer at least two-channel, CD-quality audio.
Industry:Entertainment
An electronic process used in camcorders and video cameras to calibrate the picture for accurate color display in different lighting conditions. (i.e., sunlight vs. indoor incandescent) White balancing should be performed prior to any recording, typically by pointing the camera at a white object for reference.
Industry:Entertainment
The range of audio frequencies which directly influence the fidelity of the audio. The higher the audio bandwidth, the better the audio fidelity. The highest practical frequency the human ear can normally hear is 20 kHz. An audio amplifier that processes all frequencies equally (flat response to 20 kHz) and a reasonably high signal-to-noise ratio, will accurately amplify the audio signal.
Industry:Entertainment
Special effect in which two pictures from different video sources are displayed on one screen. special effects generators provide numerous wipe patterns varying from simple horizontal and vertical wipes to multi-shaped, multi-colored arrangements.
Industry:Entertainment
Process which allows for the replacement of an audio signal on a previously recorded tape without disturbing the video signal.
Industry:Entertainment
The blending of two or more audio signals to generate a combined signal which is often used for audio dub. During video processing, audio mixing may be used to insert narration or background music.
Industry:Entertainment
