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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 set of user-definable parameters that characterise a coded video bit stream. Bit streams are characterised by coding parameters. Decoders are characterised by the bit streams that they are capable of decoding.
Industry:Entertainment
A) This term is used in High Density Digital Recording (HDDR), or High Density Recording (HDR), or other such names and refers to the number of errors a specific magnetic tape may contain, and is expressed in errors per data bits, such as one in 106 or one error in one million data bits. b) The average probability of a digital recording system reproducing a bit in error. Note: IEEE 100 defines error rate as “the ratio of the number of characters of a message incorrectly received to the number of characters of the message received.” Bit error rates typical of current digital tape recording are: digital video tape, about 106; digital instrumentation tape, about 109; digital computer tape, about 1012.
Industry:Entertainment
A) The algorithm used to capture analogue video or audio onto your hard drive.
b) Used to implement the physical combination of the coding and decoding circuits.
c) A device for converting signals from analogue to coded digital and then back again for use in digital transmission schemes. Most codecs employ proprietary coding algorithms for data compression. See Coder-Decoder.
Industry:Entertainment
The number of bits recorded per track length unit, usually expressed in terms of kilobits per inch (KBPI) or bits per millimetre (BPMM).
Industry:Entertainment
A) A number (often a constant) that expresses some property of a physical system in a quantitative way. b) A number specifying the amplitude of a particular frequency in a transform.
Industry:Entertainment
Byte-wise transmission of digital video down a multi-conductor cable where each pair of wires carries a single bit. This standard is covered under SMPTE125M, EBU 3267-E, and ITU-R BT.656 (CCIR 656).
Industry:Entertainment
The tangential force required to maintain (dynamic coefficient) or initiate (static coefficient) motion between two surfaces divided by the normal force pressing the two surfaces together.
Industry:Entertainment
Video RAM containing formatted graphics data for VGA and SVGA systems where four or more bit planes can be addressed in parallel.
A bit plane is sometimes called a map.
Industry:Entertainment
The relative increase in the linear dimension of a tape or base material per percent increase in relative humidity measured in a given humidity range.
Industry:Entertainment
A) The rate at which the compressed bit stream is delivered from the storage medium to the input of a decoder. The digital equivalent of bandwidth. b) The speed at which bits are transmitted, usually expressed in bit per second (IEEE 100). Video information, in a digitised image for example, is transferred, recorded, and reproduced through the production process at some rate (bits/s) appropriate to the nature and capabilities of the origination, the channel, and the receptor. c) The amount of data transported in a given amount of time, usually defined in Mega (million) bits per second (Mbps). Bit rate is one means used to define the amount of compression used on a video signal. Uncompressed D1 has a bit rate of 270 Mbps. MPEG-1 has a bit rate of 1.2 Mbps.
Industry:Entertainment
