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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.
A) A process by which the colouring in a television image is altered or corrected electronically. Care must be taken to ensure that the modified video does not exceed the limits of subsequent processing or transmission systems. b) The adjustment of a colour reproduction process to improve the perceived-color conformity of the reproduction to the original.
Industry:Entertainment
Method that implements n-bits of the CPU on each of several chips, or slices, usually n = 4. A bit-slice processor chip implements a complete data path across the CPU. A 32-bit processor could be constructed by using eight 4-bit CPU slices.
Industry:Entertainment
A device that divides a video signal into its basic colour components. In TV and video, colour decoding is used to derive signals required by a video monitor from the composite or Y/c.a. signals. See Chroma Demodulators.
Industry:Entertainment
A black video output generated within the switcher and selected by the Black push-buttons on the crosspoint buses and by the Fade to Black push-button in the downstream mixer.
Industry:Entertainment
Monochrome or luminance information. Monochrome means one color. In the colour television system, the black and white portion of the picture has to be one “color” gray, D6500, 6500° K as defined by x and y values in the 1939 CIE colour coordinate system. The black and white signal in the S or Component video path is separate from the colour information.
Industry:Entertainment
Signals used by colour television systems to convey colour information (not luminance) in such a way that the signals go to zero when there is no colour in the picture. colour difference signal formats include: R-Y and B-Y; I and Q; U and V; PR and PB. The figure below shows general colour difference waveforms along with the Y signal. The colour difference signals must first be converted in their RGB form before they can recreate the picture. Refer to the RGB discussion to view what the RGB version of the colour bar signal looks like. The colour difference signals in the figure are centred around 0 volts, but this is only true for the SMPTE/EBU N10 standard. The NTSC and M11 colour difference standards have the most negative portions of the colour difference signals riding on a voltage of 0 volts or close to it.
Industry:Entertainment
A term used to describe a piece of equipment dedicated to one specific function, usually involving a form of digital video magic.
Industry:Entertainment
Spurious colours appearing along the edges of colour pictures, but that do not have a colour relationship to the picture.
Industry:Entertainment
Also called “color black,” “house sync,” or “house black.” Black burst is a composite video signal consisting of all horizontal and vertical synchronisation information, burst, and usually setup. Typically used as the house reference synchronisation signal in television facilities.
Industry:Entertainment
Performs the reverse function of the chroma demodulator in that it combines the two colour difference signals into the single chroma signal.
Industry:Entertainment
