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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.
In digital video, the creation of new pixels in the image by some method of mathematically manipulating the values of neighboring pixels. This is necessary when an image is digitally altered, such as when the image is expanded or compressed.
Industry:Software
An IC that is programmed by generating a unique photomask used in the fabrication of the IC.
Industry:Software
The header is a very compact label that can be decoded by a universally accepted algorithm. Specific objectives are: identify encoding standard, specify length of the file, indicate whether a readable descriptor is included, permit random interception of data stream, and offer optional error protection.
Industry:Software
Evidenced by a thickening of the blanking line trace or by several distinct blanking lines as viewed on an oscilloscope.
Industry:Software
In television standards conversion, the technique for adjusting the number of lines in a 625-line television system to a 525- line system (and vice versa) without impairing the picture quality.
Industry:Software
Masking is one way of partial compensation for photo-receptor dot sensitivity, non-optimum color filters, non-ideal display phosphors, unwanted dye absorption.
: Audio: The phenomenon by which loud sounds prevent the ear from hearing softer sounds of similar frequency. The process of blocking out portions of a picture area/signal. A psychoacoustic phenomenon whereby certain sounds cannot be heard in the presence of others.
: Video: A process to alter color rendition in which the appropriate color signals are used to modify each other. Note: The process is usually accomplished by suitable cross coupling between primary color-signal channels.
: Photography: Comparable control of color rendition is accomplished by the simultaneous optimization of image dyes, masking dyes, and spectral sensitivities.
Industry:Software
A standard introductory identification directing access to a digital image file. The header provides a brief image file identification, universally decodable, indicating the format and length of the data block. The (optional) descriptor conveys additional information improving the usefulness of the data block to the user, such as cryptographic, priority, or additional error-protection information as well as source, time, authorship, ownership, restrictions on use, processing performed, etc.
Industry:Software
A process which starts with the low-order byte and ends with the high-order byte. Intel processors use the little endian format.
Industry:Software
An average satellite transponder has a bandwidth of 27 MHz. Typically, the highest symbol rate that can be used in SR 26 MS/s, and multiple video or audio channels can be transmitted simultaneously. MCPC uses a technique called Time Division Multiplex to transmit multiple programs, which works by sending data for one channel at a certain time and then data for another channel at another time. Many encoder manufacturers are currently experimenting with statistical multiplexing of MPEG-2 data. Using this technique, channels that need high data rate bursts in order to prevent pixelization of the picture, such as live sports events will obtain the bandwidth as they need it by reducing the data rate for other services that do not. Statistical multiplexing should improve perceived picture quality, especially on video that changes rapidly.
It also has the advantage of requiring no changes in the receiver equipment.
Industry:Software
