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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.
A computer term for the user operation of clicking on an item and dragging it to a new location.
Industry:Entertainment
A unit of signalling speed equal to the number of signal events per second. Baud is equivalent to bit per second in cases where each signal event represents exactly one bit. Often the term baud rate is used informally to mean baud, referring to the specified maximum rate of data transmission along an interconnection. Typically, the baud settings of two devices must match if the devices are to communicate with each other.
Industry:Entertainment
An RF characteristic that causes DTV reception to change dramatically with a small change in power. At the fringes of reception, current analogue TV pictures degrade by becoming “snowy.” With DTV, relatively small changes in received power in weak signal areas will cause the DTV picture to change from perfect to nothing and hence the name, cliff effect.
Industry:Entertainment
A) The speed (calculated as bits per second) at which the computer sends information to a serial device, such as a modem or terminal.
b) Measure of data flow: the number of signal elements per second.
When each element carries one bit, the baud rate is numerically equal to bits per second (BPS). For example, teletypes transmit at 110 baud. Each character is 11 bits, and the TTY transmits 10 characters per second.
c) The rate at which data is transmitted. The baud rates must match if two devices are to communicate with each other.
Industry:Entertainment
A) A video file.
b) In keying, the trigger point or range of a key source signal at which the key or insert takes place.
c) The control that sets this action. to produce a key signal from a video signal, a clip control on the keyer control panel is used to set a threshold level to which the video signal is compared.
d) In digital picture manipulators, a manual selection that blanks portions of a manipulated image that leave one side of the screen and “wraps” around to enter the other side of the screen.
e) In desktop editing, a pointer to a piece of digitised video or audio that serves as source material for editing.
Industry:Entertainment
To produce a key signal from a video signal, a clip insert control on the front panel is used to set a threshold level to which the video signal is compared. In luminance keying, any video (brightness) level above the clip level will insert the key; any level below the clip level will turn the key off. The clip level is adjusted to produce an optimum key free of noise and tearing. In the Key Invert mode, this clip relationship is reversed, allowing video below the clip level to be keyed in. This is used for keying from dark graphics on a light background.
Industry:Entertainment
An overloading condition in which highly saturated or white areas of a television picture appear to flow irregularly into darker areas.
Industry:Entertainment
The level that determines at what luminance a key will cut its hole. On AVC switchers, these are the insert and border adjust controls. On 4100 series, the corresponding controls are foreground and background.
See Bi-Level Keyer.
Industry:Entertainment
Variation in the amplitude of a mixture of two signals of close frequency as a result of constructive and destructive interference.
Industry:Entertainment
