- 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.
An electrical device which distributes a single signal between two or more channels or speakers.
Industry:Software
Less than one uncorrected error per hour at the input of the MPEG-2 decoder.
Industry:Software
The bandwidth of a digital transmission system expressed in terms of the maximum number of bits that can be transported over a given period of time. The signalling rate is typically much higher than the average data transfer rate for the system due to software overhead for network control, packet overhead, etc.
Industry:Software
A high-definition television system is a system designed to allow viewing at about three times the picture height, such that the system is virtually, or nearly, transparent to the quality of portrayal that would have been perceived in the original scene or performance by a discerning viewer with normal visual acuity. Such factors include improved motion portrayal and improved perception of depth. A high-definition system generally implies in comparison with conventional television systems: spatial resolution in the vertical and horizontal directions of about twice that available in CCIR Red 601-2; any worthwhile improvements in temporal resolution beyond that achievable with CCIR Red 601-2; improved colour rendition; a wider aspect ratio; multichannel highfidelity sound.
Industry:Software
An electronic process used in camcorders and video cameras to calibrate the picture for accurate colour display in different lighting conditions (i.e., sunlight vs. indoor incandescent). White balancing should be performed prior to any recording, typically by pointing the camera at a white object for reference.
Industry:Software
A) Electronic: Complex post-production may require such large image bandwidths, such storage requirements, and such extensive calculations that it necessitates conduction in non-realtime, off-line.
b) Photographic: Traditionally all photographic post-production has been off-line.
Industry:Software
A) A type of data compression where a string of identical values is replaced by codes to indicate the value and the number of times it occurs. Thus, a string of 70 spaces can be replaced by two bytes. One to indicate the string consists of spaces and a byte to indicate there are 70 of them. Run-Length Coding is not as efficient as DCT for compression of pictures or video, since long sequences of the same values rarely exist in images. Run-Length Coding is part of JPEG, MPEG, H.261, and H.263 compression schemes. b) A coding scheme that counts the number of similar bits instead of sending them individually. c) Coding of data with different numbers of bits. Frequently reoccurring data has the smallest number of bits, data seldom reoccurring have the highest number of bits.
Industry:Software
An intercom system that allows communication between control-room personnel and personnel working on the studio floor.
Industry:Software
The extent to which the output remains free from variations in amplitude. Uniformity is usually specified in terms of the positive and negative deviations from the average output within a roll, and in terms of the deviations in the average outputs between one roll and another.
Uniformity is normally quoted in percent or dB.
Industry:Software
Type of modulation for digital signals (DVB-S). The digital, serial signal components I and Q directly control phase shift keying. The constellation diagram with its four discrete states is obtained by representing the signal components using the I and Q signals as coordinate axes. Due to the high nonlinear distortion in the satellite channel, this type of modulation is used for satellite transmission.
The four discrete states all have the same amplitude that is why nonlinear amplitude distortions have no effect.
Industry:Software
