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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.
The physical parallel and serial interconnect scheme for ITU-R BT.601-2-601. CCIR 656 defines the parallel connector pinouts as well as the blanking, sync, and multiplexing schemes used in both parallel and serial interfaces. Reflects definitions in EBU Tech 3267 (for 625 line signals) and in SMPTE 125M (parallel 525) and SMPTE 259M (serial 525).
Industry:Entertainment
Consultative Committee International Radio. A standard that corresponds to the 4:2:2 format.
Industry:Entertainment
The recommendation considers that the HDTV studio standard must be harmonized with those of current and developing television systems and with those of existing motion-picture film. In a review of current systems, a consensus was identified in specifications for opto/electronic conversion, picture characteristics, picture scanning characteristics, and signal format (both analog and digital representations). Work is underway in the editing of national and CCIR-related documents to determine whether these consensus values may be affirmed in the next review of the individual documents. The values in Rec 709 are considered interim, and CCIR notes that continuing work is expected to define target parameters for future improved image rendition.
Industry:Entertainment
At present, the first results on studies related to Study Programme 18U/11 have been collected. It must be recognized that these studies must be intensified in close cooperation with such organizations as the IEC and ISO to take fully into account the requirements for implementation of HDTV for media other than broadcasting, i.e., cinema, printing, medical applications, scientific work, and video conferencing. In addition, the transmission of HDTV signals via new digital transmission channels or networks has to be considered and taken into account.
Industry:Entertainment
Recommendation 0.33 of the CCITT Specification for Measuring Equipment, Volume IV, Series O Recommendations-1988. This defines the automatic test sequences that are used to check on the different parameters that are important to signal quality. Recommendation 0.33 has defined sequences for both monaural and stereo audio testing. Also called EBU Recommendation R27.
Industry:Entertainment
CD-XA is a CD-ROM extension being designed to support digital audio and still images.
Announced in August 1988 by Microsoft, Philips, and Sony, the CD-ROM XA (for Extended Architecture) format incorporates audio from the CD-I format. It is consistent with ISO 9660, (the volume and the structure of CD-ROM), is an application extension of the Yellow Book, and draws on the Green Book.
CD-XA defines another way of formatting sectors on a CD-ROM, including headers in the sectors that describe the type (audio, video, data) and some additional info (markers, resolution in case of a video or audio sector, file numbers, etc).
The data written on a CD-XA can still be in ISO9660 file system format and therefore be readable by MSCDEX and Unix CD-ROM file system translators. A CD-I player can also read CD-XA discs even if its own `Green Book' file system only resembles ISO9660 and isn't fully compatible. However, when a disc is inserted in a CD-I player, the player tries to load an executable application from the CD-XA, normally some 68000 application in the /CDI directory. Its name is stored in the disc's primary volume descriptor. CD-XA bridge discs, like Kodak's Photo CDs, do have such an application, ordinary CD-XA discs don't.
A CD-DA drive is a CD-ROM drive but with some of the compressed audio capabilities found in a CD-I player (called ADPCM). This allows interleaving of audio and other data so that an XA drive can play audio and display pictures (or other things) simultaneously. There is special hardware in an XA drive controller to handle the audio playback. This format came from a desire to inject some of the features of CD-I back into the professional market.
Industry:Entertainment
A modified form of OFDM. A modulation scheme used for digital transmission that is employed by the European DVB system. It uses a very large number of carriers (hundreds or thousands), each carrying data at a very low rate. The system is relatively insensitive to doppler frequency shifts, and can use multipath signals constructively. It is, therefore, particularly suited for mobile reception and for single-frequency networks.
Industry:Entertainment
a) Contraction of binary digit. A single digit in a binary number. b) A binary representation of 1 or 0. One of the quantized levels of a pixel. c) An instruction in a data transmission, usually part of a word (byte) with high status = 1, and low status = 0.
Industry:Entertainment
