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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.
Repeaters are transparent devices used to interconnect segments of an extended network with identical protocols and speeds at the physical layer (OSI layer 1). An example of a repeater connection would be the linkage of two carrier sense multiple access/collision detection (CSMA/CD) segments within a network.
Industry:Software
Device designed to generate special effects. The simplest devices process a single video signal, change its color, generate sepia tones, invert the picture to a negative, posterize the image, and fade or break up the image into various patterns. More sophisticated equipment uses several video sources, computer-generated graphics and sophisticated animation with digital effects.
Industry:Software
The relationship between video input to the monitor and the luminance of the CRT. Monitors are required to conform to a narrower range of performance specifications than is expected of commercial receivers. Confirming these tighter tolerances requires attention to measurement details since, for example, the luminance may vary if different areas of the tube face are selected. Light output is routinely measured in the center of large, uniform “patches” or windows.
Since there is significant “bleeding” of light within a CRT face, the monitor transfer function also decreases with decreasing size of the windows (it is thus reduced for fine detail) and with increasing video level of the raster surrounding the windows.
Industry:Software
A part of the ATSC digital television specification that enables a DTV receiver to identify program information from the station and use it to create easy-to-recognize electronic program guides for the viewer at home. The PSIP generator inserts data related to channel selection and electronic program guides into the ATSC MPEG transport stream.
Industry:Software
Progressive scanning, so named because scanning lines are transmitted in numerical sequence, rather than in odd- or even-numbered fields, as in interlaced scanning.
Industry:Software
The phase locked loop (PLL) is central to the operation of frequency and phase stable circuitry. The function of the PLL is to provide a frequency/phase stable signal that is based on an input reference signal.
Industry:Software
