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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.
Points are locations in 3D space. They are represented in the computer as numerical triplets (x, y, z) where x, y, and z measure the point’s distance from the origin. A point is also called a vertex (plural is vertices). Objects are defined in terms of points. Vertex is a synonym for point. A point’s x, y, and Z values are called its coordinates.
Industry:Software
Term for a transmission or recording scheme that can tolerate significant impairments, without catastrophic failure (severe degradation).
Industry:Software
Present condition of the device. Usually indicated by flag flip-flips or special registers. See Flag.
Industry:Software
Flow diagram consisting of tests and measurements used to diagnose and locate faults in a product.
Industry:Software
The amount of digital information recorded along the length of a tape measured in bit per inch (bpi).
Industry:Software
Inaccurate digital representations of an analog signal that occurs during the analog-to-digital signal processing. Typically, the digital interpretation of video resolution is limited through the digital sampling of the analog video input signal.
Industry:Software
Information in the bit stream necessary for controlling the decoder.
Industry:Software
A device for displaying large, readable text on a partially transparent screen for video production. The teleprompter uses a monitor mounted under the camera lens, facing up, and a mirrored glass which reflects the monitor’s image toward the talent. Since the camera shoots through the mirrored glass and the mirrored glass is transparent to the camera, the talent can look directly into the camera lens as they read the script from the glass.
Industry:Software
A piece of test equipment which displays waveforms (analog video signals) at a horizontal and/or vertical rate. A specialized oscilloscope for evaluating television signals.
a) DC Restore - A circuit used in picture monitors and waveform monitors to clamp on point of the waveform to a fixed DC level. Typically the tip of the sync pulse or the back porch. This ensures the display does not move vertically with changes in the signal amplitude or average picture level (APL). The DC Restore speed can be set to SLOW or FAST DC. SLOW allows hums and other low-frequency distortions to be seen. FAST DC removes the effects of hum from the display so it will not interfere with other measurements.
b) AFC/Direct - This selection allows the waveform monitor’s horizontal sweep to trigger on each individual horizontal sync pulse (direct mode). This will allow the user to see any jitter that might be in the signal. Or the waveform monitor can trigger horizontally in the AFC mode which causes the horizontal sweep to trigger on the average value of the horizontal sync pulses. The AFC mode eliminates jitter.
Industry:Software
This type of display shows the phase relationship of the color oscillator and the 50% point on the leading edge of the horizontal sync pulse. The phase of these two can be within 0 to 360 degrees of each other. In the example below, there is a 12 degree phase difference between the two.
Industry:Software
