LYCOS RETRIEVER 
Encoder: Encoder Pro
built 658 days ago
Encoder-Plus For 95/XP offers multiple Output Options for maximum flexibility. Processing results can be directed back to the screen, printed, or formatted into an ASCII file that can be passed to other applications or even uploaded to mini or mainframe computers.
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The optical disk of the absolute encoder is designed to produce a digital word that distinguishes N distinct positions of the shaft. For example, if there are 8 tracks, the encoder is capable of producing 256 distinct positions or an angular resolution of 1.406 (360/256) degrees. The most common types of numerical encoding used in the absolute encoder are gray and binary codes. To illustrate the acion of an absolute encoder, the gray code and natural binary code dsisk track patterns for a simple 4-track (4-bit) encoder are illustrated in Fig 2 and 3. The linear patterns and associated timing diagrams are what the photodetectors sense as the code disk circular tracks rotate with the shaft. The output bit codes for both coding schemes are listed in Table 1.
To support the Chinese conversion to an all-digital broadcasting infrastructure, the 4Caster B3 is the first professional encoder on the market to support both AVS and AVC/H.264 for Broadcast and IPTV installations. The B3 is based on Intel(R) Core(TM) microarchitecture. This flexible architecture adopted by Envivio for its 4Caster platform allows the company to quickly react to market demands for new features. Consequently, deployed 4Caster B3 encoders can be modified to enable AVS support with a firmware upgrade.
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A digital optical encoder is a device that converts motion into a sequence of digital pulses. By counting a single bit or by decoding a set of bits, the pulses can be converted to relative or absolute position measurements. Encoders have both linear and rotary configurations, but the most common type is rotary. Rotary encoders are manufactured in two basic forms: the absolute encoder where a unique digital word corresponds to each rotational position of the shaft, and the incremental encoder, which produces digital pulses as the shaft rotates, allowing measurement of relative position of shaft. Most rotary encoders are composed of a glass or plastic code disk with a photographically deposited radial pattern organized in tracks. As radial lines in each track interrupt the beam between a photoemitter-detector pair, digital pulses are produced.
The new Panasonic encoder and authoring system support the Blu-ray Disc Association's BD-ROM specification, and take advantage of the disc's benefits including very high data compression, interactive menus and highly-advanced copyright protection. The Panasonic MPEG-4 AVC encoder, capable of more than twice the compression of conventional MPEG-2 encoding, maintains the highest- resolution 1080p image quality of the source. The result is a stunning picture which Hollywood studio experts have reckoned comparable to the original.
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The encoder specifications define the relationship between the encoder, the mechanism, and the control system. This menu is used to set the parameters such as the number of counts per zero-index and the zero-index configuration which ensures proper encoder operation and calibration accuracy. The encoder sign must be set properly to get stable motion in the directions specified by the device module documentation. You can ... establish encoder filtering to reduce errors due to noise in your system.
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