- Industrie:
- 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.
A system which allows the tape to be rewound automatically to any predetermined point on the tape.
Industry:Software
A format for storing digital images. To save disc space, images are compressed in a binary file. The image format is contained in a file header which is read by all the programs. The header contains: the image name, the resolution, the type of image.
Industry:Software
Television images are scanned in a sequence of horizontal lines, beginning at the upper left corner, and reaching the bottom right corner at the end of the field. Thereupon the scan is returned to the upper left corner to begin the next field. As a consequence of the line structure, all television images are sampled vertically. Within a line, the signal may remain analogue or be sampled digitally. A television line is also a measure of time, representing the interval allocated to one line. (In the U.S.: system 525/59.94/2:1, the line duration is 63.5 s). Television lines also function as a geometric measure, with resolution (both vertical and horizontal), for example, specified in terms of “lines per picture height.” Since both “black” and “white” lines of a resolution chart are counted, two television lines equal one cycle of the electrical waveform.
Industry:Software
A development proposal from Sony and Philips, now integrated in the DVD.
Industry:Software
A special DVD format that allows for certain special features.
The audio portion of this format is distinctive in that it is intended for “sing along” formats and may include audio tracks for “guide vocals,” “guide melody,” “chorus,” and the main Karaoke left and right channels. The audio track for Karaoke in DVD-video is defined to be applicable for multichannel setup with five channels maximum. When this vocal part is recorded mainly in track 4 and 5 except the main two channels, users can enjoy many different playback modes by Karaoke-type DVD players equipped with various audio on/off switches.
Industry:Software
Loss of power storing capability in NiCad (video camera) batteries which occurs when batteries are habitually discharged only partially before recharging. To avoid the memory effect, always fully discharge NiCad batteries before recharging.
Industry:Software
The Digital Information Exchange Task Force (SMPTE, IEEE, ATSC) on digital image architecture has as its goal the multidisciplinary agreement upon and the definition of fully flexible, interoperable, scalable, and extensible systems. The objective is agreement on the structure of digital image files that will facilitate the exchange of such files across the technology interfaces. The scope includes both the rapid, unambiguous but concise identification of the file and its utilization, as well as the organisation of the image data itself.
Industry:Software
A screen for displaying text/graphics based on a technology called liquid crystal, where minute currents change the reflectiveness or transparency of selected parts of the screen. The advantages of LCD screens are: very small power consumption (can be easily battery driven) and low price of mass produced units. Its disadvantages presently include narrow viewing angle, somewhat slower response time, invisibility in the dark unless the display is back-lit, difficulties displaying true colors, and resolution limitations.
Industry:Software
A form of interference caused by signal reflections.
Signals that are reflected more take a longer path to reach the receiver than those that are reflected less. The receiver will synchronise to the strongest signal, with the weaker signals travelling via different paths causing ghostly images superimposed on the main image. Since many ATV schemes offer increased horizontal resolution, ghosts can have a more deleterious effect on them than on ordinary NTSC signals. There have been many demonstrations of ghost canceling/eliminating systems and robust transmission systems over the years. It is probable that these will have to be used for HDTV.
Industry:Software
A standard unit for measuring the information storage capacity of discs and memory (RAM and ROM); 1024 bytes make one kilobyte.
Industry:Software
