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- Number of terms: 20560
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- Company Profile:
Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
The overall light-in/light-out characteristic of a television system, from camera through receiver. In an ideal system, the gamma should be one. In practice, it appears to be about 1.4.
Industry:Software
A system in which television programmes or movies are transmitted to a single consumer, and then, only when requested.
Industry:Software
A picture defect caused by unequal delay (phase shifting) of different frequency components within the signal as they pass through different impedance elements - filters, amplifiers, ionosphere variations, etc. The defect in the picture is “fringing”-like diffraction rings at edges where the contrast changes abruptly.
Industry:Software
Since it can take considerable time to render a single 3D image, and most of that time is CPU compute time, many facilities using PC-based rendering systems have used large Winchester discs to which they send their final rendered images. This frees up the frame buffer for other work in the meantime. Later, when the animation is fully computed, the disc images can be quickly recalled and placed in the frame buffer, before being sent to videotape.
Industry:Software
Artistic effects added to a video production in order to enhance the production by creating drama, enhancing the mood or furthering the story. Special effects may vary from the limited addition of patterns or the mixing of several video images together, to sophisticated digital effects such as picture compression, page flipping, and three-dimensional effects. Special effects are usually created using SEGs such as those included in the Video Equalizer, Video TitleMaker 2000, and Digital Video Mixer.
Industry:Software
A complex function of frequency response (and correlated levels) relating the output to the input of the device as a function of frequency. A mathematical, graphical, tabular statement of the influence which a module has on a signal or action compared at input and at output terminals.
Industry:Software
Used to select from a list of related items. The selected option box has a black dot. (One item in the group must be selected.)
Industry:Software
A time stamp in the transport stream from which decoder timing is derived.
Industry:Software
SMPTE 305M. Allows fasterthan- real-time transfers between various servers and between acquisition tapes, disk-based editing systems, and servers, with both 270 Mb and 360 Mb, are supported. With typical real-time compressed video transfer rates in the 18 Mbps to 25 Mbps range, SDTI’s 200+ Mbps payload can accommodate transfers up to four times normal speed. The SMPTE 305M standard describes the assembly and disassembly of a stream of 10-bit words that conform to SDI rules. Payload data words can be up to 9 bits.
The 10th bit is a complement of the 9th to prevent illegal SDI values from occurring. The basic payload is inserted between SAV and EAV although an appendix permits additional data in the SDI ancillary data space as well. A header immediately after EAV provides a series of flags and data IDs to indicate what is coming as well as line counts and CRCs to cheque data continuity.
Industry:Software
The system header is a data structure that carries information summarising the system characteristics of the Digital Television Standard multiplexed bit stream.
Industry:Software
