- Industrie:
- Number of terms: 20560
- Number of blossaries: 0
- Company Profile:
Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
The degree to which the surface of the magnetic coating approaches the surface of the record or replay heads during normal operation of a recorder. Good head-to-tape contact minimises separation loss and is essential in obtaining high resolution.
Industry:Software
The vertical positioning of a head with respect to a piece of tape. The size of the picture in a vertical direction.
Industry:Software
A method of recording video information diagonally on a tape, used in home and professional VCRs. High-speed rotating video heads scan these diagonal video tracks, giving an effective tape speed much higher than the actual tape speed allowing more information to be recorded on a given length of magnetic tape.
Industry:Software
Base-16 number system. Since there are 16 hexadecimal digits (0 through 15) and only ten numerical digits (0 through 9), six additional digits are needed to represent 10 through 15. The first six letters of the alphabet are used for this purpose. Hence, the hexadecimal digits read: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F. The decimal number 16 becomes the hexadecimal number 10. The decimal number 26 becomes the hexadecimal number 1A.
Industry:Software
A black and white high contrast signal used as a key source. See also Matte Reel.
Industry:Software
HSM systems transparently migrate files from disc to optical disc and/or magnetic tape that is usually robotically accessible. When files are accessed by a user, HSM systems transparently move the files back to disk.
Industry:Software
A frequently used abbreviation for HDEP and sometimes HDTV. The term High Definition, applied to television, is almost as old as television itself. In its earliest stage, NTSC was considered high definition (previous television systems offered from 20 to 405 scanning lines per frame).
Industry:Software
A term bearing little or no implications for transmission and display systems. The SMPTE and the ATSC have approved one standard for HDEP, sometimes referred to as SMPTE 240M. This standard has 1125 scanning lines per frame, 60 field per second, 2:1 interlace, an aspect ratio of 16:9, extended colorimetry, and a 30 MHz base bandwidth for each of its three colour components. It is based on work at NHK, but includes considerable American modifications.
Clearly, the combined 90 MHz base bandwidth of this DHEP standard cannot be practically broadcast (not counting sound or modulation characteristics, it takes up as much bandwidth as 15 current broadcast channels).
That is why there are so many ATV transmission schemes.
Industry:Software
British organisation that began using the term High Definition for its electronic cinematography system even before colour TV was broadcast in the U.S.
Industry:Software
