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Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
This distortion is present if a signal’s chrominance phase is affected by chrominance amplitude. These phase errors are a result of the system’s inability to uniformly process all amplitudes of high-frequency chrominance information. Chrominance nonlinear phase distortion is expressed in degrees of shift of subcarrier phase. This parameter should be measured at different APL (Average Picture Level); the worst result is quoted as the amount of distortion. Chrominance nonlinear phase distortion will cause picture hue to shift as color saturation increases.
A modulated pedestal signal is used to measure this distortion. The modulated pedestal signal consists of three chrominance packets with the same phase and luminance level but each chrominance packet has increasing amplitudes of 20, 40, and 80 IRE.
Industry:Entertainment
An alternation of a waveform which begins at a point, passes through the zero line and ends at a point with the same value and moving in the same direction as the starting point.
Industry:Entertainment
A new coding standard is backward compatible with an existing coding standard if existing decoders (designed to operate with the existing coding standard) are able to continue to operate by decoding all or part of a bit stream produced according to the new coding standard.
Industry:Entertainment
The high-frequency portion of the video signal which is obtained by quadrature amplitude modulation (QAM) of a 4.43 MHz (PAL) or 3.579545 MHz (NTSC) subcarrier with R-Y and B-Y information.
Industry:Entertainment
A motion vector that is used for motion compensation from a reference picture at a later time in display order.
Industry:Entertainment
Reduction of the amount of color information by either rejecting chrominance samples or by averaging adjacent chrominance samples.
Industry:Entertainment
Total time required by a memory device to complete a read or write cycle and become available again.
Industry:Entertainment
Sound absorbing panels used to prevent sound waves from entering or leaving a certain space.
Industry:Entertainment
The difference between the expected phase and the actual phase of the chrominance portion of the video signal relative to burst phase.
Industry:Entertainment
