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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.
a) Noise which results from the agitation of the oxide molecules through the recording process. The modulation noise level increases as record level increases and disappears when no signal is present. b) The noise arising when reproducing a tape which has been recorded with a given signal, and which is a function of the instantaneous amplitude of the signal. This is related to DC noise and arises from the same causes.
Industry:Software
The actual channels or speakers delivering discrete surround program material.
Industry:Software
a) A section within a VTR that changes the frequency of the video signal information coming in from an external source (i.e., an electronic camera) to signal information that is compatible with the requirements of the VTR heads, while keeping the picture information basically unchanged. b) Pattern system electronics capable of distorting the edge of a pattern by impressing a sine or other waveform on the vertical or horizontal shape of the pattern. c) The device that places information on an RF carrier signal.
Industry:Software
A video signal in which each component remains within the limits specified for the video signal format; that is, it does not exceed the specified gamut for the current format.
Industry:Software
A feature that synchronizes the modulator or modifier effect to the frame rate, thus preventing the effect from drifting or appearing incoherent.
Industry:Software
Algorithm used by the UNIX compress command to reduce the size of files, e.g., for archival or transmission.
sequences (strings) in its input. It maintains a table mapping input strings to their associated output codes. The table initially contains mappings for all possible strings of length one. Input is taken one byte at a time to find the longest initial string present in the table. The code for that string is output and then the string is extended with one more input byte b. A new entry is added to the table mapping the extended string to the next unused code (obtained by incrementing a counter). The process repeats, starting from byte b. The number of bits in an output code, and hence the maximum number of entries in the table is usually fixed and once this limit is reached, no more entries are added.
The algorithm relies on repetition of byte
Industry:Software
A small device, not working by itself, designed to perform specialized tasks in association with a host, for example: a conditional access subsystem, an electronic program guide application module, or to provide resources required by an application but not provided directly by the host.
Industry:Software
a) The physical length of the tape wound on a reel or on a hub, varying from 213 feet in a C45 cassette to 9200 feet in a roll of instrumentation tape. b) The number of bytes represented by the items whose Length is being described.
Industry:Software
A seamless MPEG-2 concatenation technology developed by the ATLANTIC project in which an MPEG-2 bitstream enters a Mole-equipped decoder, and the decoder not only decodes the video, but the information on how that video was first encoded (motion vectors and coding mode decisions). This “side information” or “metadata” in an information bus is synchronized to the video and sent to the Mole-equipped encoder. The encoder looks at the metadata and knows exactly how to encode the video. The video is encoded in exactly the same way (so theoretically it has only been encoded once) and maintains quality. If an opaque bug is inserted in the picture, the encoder only has to decide how the bug should be encoded (and then both the bug and the video have been theoretically encoded only once). Problems arise with transparent or translucent bugs, because the video underneath the bug must be encoded, and therefore that video will have to be encoded twice, while the surrounding video and the bug itself have only been encoded once theoretically. What Mole cannot do is make the encoding any better. Therefore, the highest quality of initial encoding is suggested.
Industry:Software
The curved glass on a video camera or camcorder that collects light and focuses it.
Industry:Software
