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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.
The signal-to-periodic noise ratio is the ratio in decibels, of the nominal amplitude of the luminance signal (100 IRE units) to the peak-to-peak amplitude of the noise. Different performance objectives are sometimes specified for periodic noise (single frequency) between 1 kHz and the upper limit of the video frequency band and the power supply hum, including low-order harmonics.
Industry:Software
Sound which reaches a mike or listener after one or more reflections from surrounding surfaces.
Industry:Software
a) A measure of the sound pressure created by a sound, usually in the units of dB referred to 0.0002 microbar of pressure. b) A measure of acoustic wave force. The force that sound can exert against an object; our ear drums are an example. It is measured in dB and is “0” referenced to 1 dyne per square centimeter.
Industry:Software
Base-8 number system. Often used to represent binary numbers, since each octal digit corresponds directly to three binary digits.
Industry:Software
Colors, usually three, that are combined to produce the full range of other colors within the limits of a system. All non-primary colors are mixtures of two or more of the primary colors. In television, the primary colors are specific sets of red, green, and blue.
Industry:Software
Circuit which removes the sync information from the composite signal.
Industry:Software
The range from 30 MHz to 300 MHz, within which are found U.S. television channels 2 through 13. VHF television channels seem about as filled as current technology allows, which is why much ATV debate centers on channel allocations in UHF and/or SHF. Some ATV proponents, however, feel that a robust, low-level digital augmentation channel might be squeezed into adjacent VHF channels without interference, perhaps even two augmentation channels per adjacent channel. If that can be done, every U.S. television broadcaster would be able to have an ATV augmentation channel.
Industry:Software
Any interface (hardware) device connected to a computer that adds more functionality , such as a tape drive. Also, a mass storage or communications device connected to a computer. See also External Devices and Internal Drives.
Industry:Software
