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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.
For tape, an imperfection in the tape leading to a variation in output or a dropout. The most common defects take the form of surface projections, consisting of oxide agglomerates, imbedded foreign matter, or redeposited wear products.
Industry:Entertainment
The aggregate of fine details available on-screen. The higher the image definition, the greater the number of details that can be discerned.
During video recording and subsequent playback, several factors can conspire to cause a loss of definition. Among these are the limited frequency response of magnetic tapes and signal losses associated with electronic circuitry employed in the recording process. These losses occur because fine details appear in the highest frequency region of a video signal and this portion is usually the first casualty of signal degradation. Each additional generation of a videotape results in fewer and fewer fine details as losses are accumulated.
Industry:Entertainment
A process by which a unidirectional magnetic field is removed from such transport parts as heads and guides. The presence of such a field causes noise and a loss of high frequencies.
Industry:Entertainment
Being simpler mathematically than the typical case. A degenerate edge is reduced to one point. A degenerate polygon has a null surface.
Industry:Entertainment
A) The time required for a signal to pass through a device or conductor.
b) The time it takes for any circuitry or equipment to process a signal when referenced to the input or some fixed reference (i.e., house sync).
Common usage is total delay through a switcher or encoder. c) The amount of time between input of the first pixel of a particular picture by the encoder and the time it exits the decoder, excluding the actual time in the communication channel. It is the combined processing time of the encoder and decoder. For face-to-face or interactive applications, the delay is crucial.
It usually is required to be less than 200 milliseconds for one-way communication.
Industry:Entertainment
When an electronic signal travels through electronic circuitry or even through long coaxial cable runs, delay problems may occur. This is manifested as a displaced image and special electronic circuitry is needed to correct it.
Industry:Entertainment
Distortion resulting from non-uniform speed of transmission of the various frequency components of a signal; i.e., the various frequency components of the signal have different times of travel (delay) between the input and the output of a circuit.
Industry:Entertainment
An amplifier that can introduce adjustable delay in a video signal path.
Industry:Entertainment
Getting television signals to a viewer. Delivery might be physical (e.g., cassette or disc) or electronic (e.g., broadcast, CATV, DBS, optical fiber).
Industry:Entertainment
The physical medium by which one or more multiplexes are transmitted, e.g., satellite system, wideband coaxial cable, fibre optics, terrestrial channel of one emitting point.
Industry:Entertainment
