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Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
The nominal composite video signal level is 1 volt. At this level, a fully saturated image is transmitted and boosting the signal offers no advantage. Most video equipment is designed to output the same 1-volt level video signal. In cases where the signal level has been reduced, such as after a long cable run, an amplifier with video gain may be employed to restore the proper level.
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 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
An electronic process used in camcorders and video cameras to calibrate the picture for accurate colour 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
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
Data compression software that continually analyses and compensates its algorithm, depending on the type and content of the data and the storage medium.
Industry:Entertainment
During video recording, the video signal is usually accompanied by an audio signal. Sometimes, during video editing, it is often necessary to separate the audio from the video signal. Audio-follow-video mixers allow accompanying audio to "follow" the video when switching video sources or not.
Industry:Entertainment
A video signal that represents an infinite number of smooth gradations between given video levels. analogue video whether transmitted over cables, read from videotapes or broadcast, is subject to degradation due to noise, distortion and other electronic phenomena. Normal signal levels should be within 0.7-1 volt. By contrast, a digital video signal assigns a finite set of levels.
Industry:Entertainment
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 programmes on media such as CD-ROM, where significant expense can be incurred for the production and compression of the programme but the playback system must be low in cost.
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
