- Industrie:
- 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.
Gateways provide functional bridges between networks by receiving protocol transactions on a layer-by-layer basis from one protocol (SNA) and transforming them into comparable functions for the other protocol (OSI). In short, the gateway provides a connexion with protocol translation between networks that use different protocols. Interestingly enough, gateways, unlike the bridge, do not require that the networks have consistent addressing schemes and packet frame sizes. Most proprietary gateways (such as IBM SNA gateways) provide protocol converter functions up through layer six of the OSI, while OSI gateways perform protocol translations up through OSI layer seven. See OSI Model.
Industry:Software
Time Inc.’s pay-cable and entertainment production company, a co-proposer with ATC of C-HDTV and supporter of ACTV.
Industry:Software
The metric unit of magnetic flux density equal to one Maxwell per square centimeter.
Industry:Software
The directory into which IRIX places you each time you log in. It is specified in your login account; you own this directory and, typically, all its contents.
Industry:Software
A standard interface for control of electronic equipment. A connector on the back of the switcher frame or editor which allows remote control of the Auto Trans, DSK Mix, Fade to Black, or Panel Memory Function or Sequence on the switcher. Usually a contact closure (i.e., switch) which provides short to ground.
Industry:Software
Relatively broad horizontal bars, alternately black and white, which extend over the entire picture. They may be stationary, or may move up or down. Sometimes referred to as a “venetian blind” effect. Caused by approximate 60-cycle interfering frequency, or one of its harmonic frequencies.
Industry:Software
A form of translator which allows the switcher to talk to other devices, i.e., ADO, and to be given instructions serially by devices such as Editors.
Industry:Software
A) The entire time between the end of the active picture time of one line and the beginning of the active picture time of the next line. It extends from the start of front porch to the end of the back porch. b) The video synchronising signal before and after each active television line that defines the border or black area at the left and right side of the display. In a CRT, it hides (blanks out) the electron beam’s retrace path as it returns from the right to the left of the display to begin scanning a new line.
Industry:Software
The number of duplication steps between an original recording and a given copy. A second generation duplicate is a copy of the original master and a third generation duplicate is a copy of a copy of the original master, etc.
Industry:Software
That portion of the scanning line not carrying a picture. In NTSC, the HBI carries a synchronising pulse and a colour reference signal. Some scrambling and other systems add sound and/or data signals to the HBI. Some ATV schemes fill it with widescreen panel or detail enhancement signals. See also Blanking and Blanking Stuffing.
Industry:Software
