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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 system header is a data structure that carries information summarizing the system characteristics of the Digital Television Standard multiplexed bit stream.
Industry:Software
A connector used in audio and video components, characterized by its single connection post and metal flanges. See also RCA Connector.
Industry:Software
To activate a restart sequence to a CPU, ILC, or other device which has locked up or is for some other reason not responding correctly.
Industry:Software
Designation of certain bandwidths at certain frequencies for certain purposes. For example, channel 2 has been allocated 6 MHz of bandwidth from 54 MHz to 60 MHz for television broadcasting. All ATV transmission schemes require some form or another of spectrum allocation.
See also Frequency Allocation Table.
Industry:Software
Transient gain distortion, also referred to as transient nonlinearity, is present when abrupt changes in APL temporarily affect signal amplitudes. The error is defined as the maximum transient departure in amplitude of a sync pulse from the amplitude it had before the change to the amplitude after the change. Measurement of transient gain distortions is done as an out-of-service test and should be checked for transitions of low-to-high APL and high-to-low APL. If the transient gain distortion only affects the sync pulse and then not so severely as to cause the sync to be unusable, then the viewable picture would not be affected.
However if the sync pulse is affected, the rest of the picture is also normally affected; when transient gain distortions affect the picture, it appears as abnormal transient brightness effects. A test signal generator capable of producing a “bouncing” flat-field signal is used to test for transient gain distortions. A typical signal is shown below. The time between bounces (APL level changes) must be longer than the transient effects so that all the transient effects can be viewed before the next APL change occurs.
Industry:Software
Any internal drive other than the system disk. Option drives include floppy disk drives, secondary hard disk drives, or DAT drives.
Industry:Software
Register in the CPU that holds the address of the next program word to be read. Branching requires loading of the jump address into the program counter. Otherwise, the PC is incremented after each word is read.
Industry:Software
Uses scrambled channel coding and NRZI signal format as described in SMPTE 259M and EBU Tech. 3267. The various serial digital data rates are: 143 Mb/s for serial composite NTSC; 177 Mb/s for serial composite PAL; 270 Mb/s for serial component 525/59.94 and 625/50; 360 Mb/s for serial component 16:9 aspect ratio.
Industry:Software
A set of tools that the administrator uses to set up and manage the IRIS. You access the System Manager through the System Toolchest.
Industry:Software
