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- Number of terms: 20560
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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.
The portion of the video signal which lies between the trailing edge of the horizontal sync pulse and start of burst. The Breezeway is part of the back porch. Also refer to the Horizontal Timing discussion.
Industry:Entertainment
Analogue video signal format in which the picture information is conveyed in three signals. Refer to the definition for analogue Components. CAV formats include: RGB; Y, R-Y, B-Y; Y, I, Q.
Industry:Entertainment
A device used to erase an entire tape at one time. Bulk erasers are usually more effective than recorders’ erase heads.
Industry:Entertainment
A) Data Transmission: A process in which the effective gain applied to a signal is varied as a function of the signal magnitude, the effective gain being greater for small rather than for large signals.
b) Video: The reduction in amplitude gain at one level of a picture signal with respect to the gain at another level of the same signal.
Note: The gain referred to in the definition is for a signal amplitude small in comparison with the total peak-to-peak picture signal involved. A quantitative evaluation of this effect can be obtained by a measurement of differential gain.
c) Production: A transfer function (as in gamma correction) or other nonlinear adjustment imposed upon signal amplitude values.
Industry:Entertainment
Bridges are devices that connect similar and dissimilar LANs at the data link layer (OSI layer 2), regardless of the physical layer protocols or media being used. Bridges require that the networks have consistent addressing schemes and packet frame sizes. Current introductions have been termed learning bridges since they are capable of updating node address (tracking) tables as well as overseeing the transmission of data between two Ethernet LANs.
Industry:Entertainment
Structure of a video signal wherein the R', G', and B' signals are kept separate from each other or wherein luminance and two band-limited color-difference signals are kept separate from one another.
The separation may be achieved by separate channels, or by time-division multiplexing, or by a combination of both.
Industry:Entertainment
Transferring a programme recorded on a lower quality videotape to a higher quality videotape (e.g., from Hi-8 to Betacam). Bumping up to a higher format allows footage to be preserved on a more stable tape format and makes it possible to edit in a higher-end editing environment.
Industry:Entertainment
Compression is used in the digital environment to describe initial digital quantization employing transforms and algorithms encoding data into a representation that requires fewer bits or lower data rates or processing of an existing digital bit stream to convey the intended information in fewer bits or lower data rate. Compression (bit rate) may be reversible compression, lossles, or it may be irreversible compression, lossy.
Industry:Entertainment
A) Overall DC voltage level of the video signal. The brightness control is an adjustment of setup (black level, black reference).
b) Attribute of a visual sensation according to which an area appears to emit more or less light. The subjective counterpart of objective luminance.
c) The value of a pixel along the black-white axis.
Industry:Entertainment
A digital representation of a component analogue signal set, most often Y, B-Y, R-Y. The encoding parameters are specified by CCIR 601. The parallel interface is specified by ITU-r BT.601-2 656 and SMPTE 125M (1991).
Industry:Entertainment
