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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 time period between lines of active video. Also called Horizontal Blanking Interval.
Industry:Software
A subsystem in a video receiver/decoder which detects horizontal synchronizing pulses, compares them with the on-board video clock in the video system, and uses the resultant data to stabilize the incoming video by re-synching to the system clock. In the case of severe horizontal instability, a large FIFO memory may be required to buffer the rapid line changes before they are compared and re-synchronized.
Industry:Software
a) Rating of the fine detail (definition) of a TV picture, measured in scan lines. The more lines, the higher the resolution and the better the picture. A standard VHS format VCR produces 240 lines of horizontal resolution, while over 400 lines are possible with S-VHS, S-VHS-C, and Hi-8 camcorders. b) Detail across the screen, usually specified as the maximum number of alternating white and black vertical lines (line of resolution) that can be individually perceived across the width of a picture, divided by the aspect ratio. This number is usually expressed as TV lines per picture height. The reason for dividing by the aspect ratio and expressing the result per picture height is to be able to easily compare horizontal and vertical resolution. Horizontal chroma resolution is measured between complementary colors (rather than black and white) but can vary in some systems (such as NTSC), depending on the colors chosen.
Horizontal resolution in luminance and/or chrominance can vary in some systems between stationary (static resolution) and moving (dynamic resolution) pictures). It is usually directly related to bandwidth.
Industry:Software
The return of the electron beam from the right to the left side of the raster after the scanning of one line.
Industry:Software
The rate at which the screen’s scanning beam is swept from side to side. For (M) NTSC systems, this rate is 63.556 μs, or 15.734 kHz.
Industry:Software
a) The –40 IRE pulse occurring at the beginning of each line. This pulse signals the picture monitor beam to go back to the left side of the screen and trace another horizontal line of picture information.
b) The portion of the video signal that occurs between the end of one line of signal and the beginning of the next. A negative-going pulse from the blanking signal used to genlock (synchronize) equipment. It begins at the end of the front porch and ends at the beginning of the back porch.
Industry:Software
The three axes of the spatio-temporal spectrum.
Industry:Software
a) Any system connected to the network. b) A device where module( s) can be connected, for example: an IRD, a VCR, a PC.
Industry:Software
