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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.
An extensive family of compatible digital coding standards for studio use with current television systems is defined by CCIR Red 601-2, equally applicable to component encoded 525/60 Hz and 625/50 Hz systems. The member of the family to be used for the standard digital interface between main digital studio equipment and for international programme exchange (i.e., for the interface with video recording equipment and for the interface with the transmission system) should be that in which the luminance and color-difference sampling frequencies are related in the ratio 4:2:2. Specifications include: Coded Signals; luminance (Y) plus two color-difference signals (CR and CB).
Sampling Frequency; luminance 13.5 MHz, color-difference 6.75 MHz (for each of the two signals); Samples (8-bit) per Digital Active Line; luminance 720, color-difference 360 (for each of CR and CB). Other more detailed specifications are included in CCIR Rec 601-2. Compressed and expanded derivations (4:1:1 and 4:4:4 specifically) are postulated variants with minimum or maximum colour information.
Industry:Software
A) A method of changing the distribution of the noise that is due to truncation by premultiplying values. b) In a sound level meter, this is a philtre that creates a response that corresponds to the ear’s varying sensitivity at different loudness levels. A weighting corresponds to the sensitivity of the ear at lower listening levels. The philtre design weights or is more sensitive in certain frequency bands than others. The goal is to obtain measurements that correlate well with the subjective perception of noise.
Industry:Software
Deleting the least-significant digits of a quantity and applying some rule of compensation and correction to the part retained.
Industry:Software
To reduce a window to an icon for later use. In Windows® it is called “minimize.”
Industry:Software
A) A pickup pattern which is more sensitive to sounds arriving from one direction than from any other. b) Wire or group of wires in which data flows in only one direction. Each device connected to a unidirectional bus is either a transmitter, or a receiver, but not both.
Industry:Software
A phenomenon caused by simultaneously displaying more than one bitmap or video that do not share the same palette.
Industry:Software
This video format is often used in low-cost video phones. This format has a luminance resolution of 176 x 144 active pixels per line, a refresh rate of 29.97 frames per second at uncompressed bit rate of 9.115 Mbits/s.
Industry:Software
The polarity of the signal shall be positive, i.e., so that black-to-white transitions are positive going.
Industry:Software
A signal format in which either the tristimulus value red (R), green (G), and blue (B) signals representing the picture contents or a matrixed version consisting of the luminance (Y) and two color-difference signals (R Y, L3 Y) - are individually digitised and combined into a single data stream. SMPTE 125M describes a digital component television signal interface for 525-line/59.94 field/sec television systems.
Specifications for digital magnetic video tape recording of component digital video of 525-line or 625-line structure sampled at 13.5 MHz are grouped into the D1 VTR standards. For 525-line, samples at 13.5 MHz, the specifications are SMPTE 224M, 225M, 226M, 227M, RP 155, and EG 10. An index to the specifications for D1, both 525-line and 625-line versions, is SMPTE EG 22.
Industry:Software
