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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.
In late 1992, VESA (Video Electronics Standard Association) completed the specification for a local bus expansion for PCs.
One of the most important things about VL Bus design is that it specified connector pinout. The VL Bus, considered a high-speed bus with a maximum speed of 66 MHz, was designed with the Intel 486 in mind. The 32- bit bus, which includes unbuffered control, data, and address signals is compatible with 16-bit operations. One drawback of the VL Bus implementation is that the more expansion connectors used, the slower the operation of the bus. For example, using two connectors, the highest recommended speed is 40 MHz. When multiple bus slots are desired, multiple VL Bus subsystems can be built into a single PC.
Industry:Software
An improved stereo audio recording/playback system found on some camcorders and VCRs. Because the audio tracks are mixed and recorded with the video signal, audio only dubbing of these tracks is not possible.
Industry:Software
A miniature version of the VHS tape format using smaller cassettes that may also be played on standard VHS machines by using an adapter cartridge.
Industry:Software
UDF filename used for the video directory on the disc volume.
Files under this directory name contain pointers to the sectors on the disc that hold the programme streams.
Industry:Software
The organization, headquartered in Brussels, investigates the ways of developing European widescreen production and seeks to contribute to the deployment of digital and widescreen broadcasting and high definition video production. Specifically, the organisation helps European producers in the making of programmes through provision of technical expertise.
Industry:Software
Device that produces a test signal in the video in the vertical interval so as not to be visible to the home viewer but allows the broadcasters to test signal quality during transmission.
Industry:Software
The A-curve is a side bandpass philtre centred at 2.5 kHz with ~20 dB attenuation at 100 Hz, and ~10 dB attenuation at 20 kHz. Therefore, it tends to heavily roll off the low end, with a more modest effect on high frequencies. It is essentially the inverse of the 30-phon (or 30 dB-SPL) equal-loudness curve of a Fletcher-Munson.
Industry:Software
The B-weighting curve is used for intermediate level sounds and has the same upper corner as the C-weighting, but the lower amplitude corner is 120 Hz.
Industry:Software
The C-curve is basically “flat,” with –3 dB corners of 31.5 Hz and 8 kHz, respectively.
Industry:Software
This philtre was designed to maximise its response to the types of impulsive noise often coupled into audio cables as they pass through telephone switching facilities. The CCIR 468-curve peaks at 6.3 kHz, where it has 12 dB of gain (relative to 1 kHz). From here, it gently rolls off low frequencies at a 6 dB/octave rate, but it quickly attenuates high frequencies at ~30 dB/octave (it is down –22.5 dB at 20 kHz, relative to +12 dB at 6.3 kHz).
Industry:Software
