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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.
Sampling data at a higher rate than normal to obtain more accurate results or to make it easier to sample.
Industry:Software
A tape with a magnetizable layer on which data can be stored.
Usually a workstation’s tape is packaged in a cartridge.
Industry:Software
Distance between image and a viewer’s eyes. In television, the distance is usually measured in picture heights. In film it is sometimes measured in picture widths. As a viewer gets closer to a television set from a long distance, the amount of detail perceptible on the screen continually increases until, at a certain point, it falls off rapidly. At that point, scanning line or triad visibility is interfering with the viewer’s ability to see all of the detail in the picture, sort of not being able to see the forest for the trees. The finer the triad or scanning structure, the closer to the screen this point can be (in picture heights). Therefore, high-definition screens allow either closer viewing for the same size screen or larger screens for the same physical viewing distance (not in picture heights).
When the effects of scanning lines and triads are reduced, other artifacts (such as temporal alias of panning called strobing) may become more obvious.
From far enough away, it is impossible to tell high-definition resolution from NTSC resolution.
Industry:Software
a) Related to a particular image address in digital systems or to the smallest reproducible element in an analog system.
A single point on the screen. As an example, if a system is said to have a display resolution of 1280 by 1024, there are 1280 pixels per horizontal line and 1024 horizontal lines from the top of the screen to the bottom.
b) A pixel is the digital representation of the smallest area of a television picture capable of being delineated by the bit stream; i.e., the digital value or set of values that defines the characteristics of a picture element.
A pixel of a full-color image is represented by a minimum of three components, reflecting the trichromatic nature of human vision. A pixel of a monochrome image may be represented by a single component. Pixels may carry additional information such as transparency. The total number of picture elements in a complete picture is of interest since this number provides a convenient way of comparing systems. c) One of the tiny points of light that make up the picture on a computer screen. The smaller and closer together the pixels are, the higher the resolution.
Industry:Software
Adjustment of a local synchronizing generator which has been locked to a distant source. This permits the local facility to use the distant source in real-time production through a video switcher.
Industry:Software
a) The new HDTV standards call for a range of different resolutions. Those that are higher than today’s NTSC are considered HDTV. The ones that are comparable to NTSC are considered SDTV. Because SDTV is component and digital, it will still be higher quality than NTSC. b) This term is used to signify a digital television system in which the quality is approximately equivalent to that of NTSC. Also called standard digital television. See also Conventional Definition Television and ITU-R Recommendation 1125.
Industry:Software
Increases scanning amplitudes approximately 20%. Used for tube/yoke set-up and sometimes as a precaution against an edge of picture “raster burn.”
Industry:Software
