Fiber Optics Illustrated Dictionary - Part 30 pps

... processor DGEP. An electronic processor for providing dynamic gain-flat- tening and tilt control in optical amplifiers. In com- mercial systems, DGEP provides gain equalization through patented all -fiber acousto-optical tunable fil- ter (AOTF) technology. In single-mode optical fibers, acoustic waves can be applied directly to produce what Novera Optics calls notch filters for optical sig...

Ngày tải lên: 02/07/2014, 13:20

... Document A/54 which describes use of the DTS. The DTS is based upon the ISO/IEC MPEG-2 Video Standard, the Digital Au- dio Compression (AC-3) Standard, and the ISOIIEC MPEG-2 Systems Standard. It was part of an ongo- ing effort to upgrade consumer broadcasting pro- gramming and equipment to reflect improvements in technology. The Digital Television Standard was, in large part, adopted by...

Ngày tải lên: 02/07/2014, 13:20

... Fiber Optics Illustrated Dictionary BITNET, BITNET-NJE Because It's Time Net- work. An international, cooperative, academic net- work established in 1981 by Ira H. Fuchs (City Uni- versity ... algorithm developed by Bruce Schneier, Blowfish has become the basis for a number of encryption schemes, includ- ing Kent Briggs' Puffer, Harvey Parisien's VGP, and Philip Zimmerm...

Ngày tải lên: 02/07/2014, 13:20

... Cellular Digital Packet Data, D interface, E interface, I interface. C jack The USOC/Federal Communications Com- mission (FCC) code for a flush- or surface-mounted jack (as opposed to wall-mounted). The designation is typically a suffix added to RJ-ll (RJ-IIC) or RJ- 45 (RJ-45C), for example. See RJ for a fuller expla- nation and chart. C ... used in reference to liquid or vapor conductors. b...

Ngày tải lên: 02/07/2014, 13:20

... of energy in the active scintillator elements produces light, some of which may be re-emitted and shifted as to its wavelength with coiled wavelength-shifting fibers within the tile structure. The light can then be transmitted through an optical fiber to a photo tube or photomultiplier tube where it is converted to elec- trical energy. See calorie, scintillator, wavelength- shifting. CALS C...

Ngày tải lên: 02/07/2014, 13:20

... Fiber Optics Illustrated Dictionary D'Arsonval current A high-frequency, somewhat high-amperage, low-voltage current. D' Arsonval galvanometer ... CRC Press LLC Fiber Optics Illustrated Dictionary 25-pin male D connector usedprimarily for serial andSCSI data communications. DBD 1. database drivers. 2. See digital bearing dis- criminator. DBMS See Database Management...

Ngày tải lên: 02/07/2014, 13:20

... conversion The conversion of data stored as discrete units, usually in ones and zeros on computer systems, to modulated analog wave pat- terns. A modem is a common device which performs digital to analog conversion when changing computer signals to modulated analog signals that can be car- ried electrically through a phone line connection. The process is reversed at the receiving end. See D/...

Ngày tải lên: 02/07/2014, 13:20

... of metals and glass and developed new types of optics. He coined © 2003 by CRC Press LLC Fiber Optics Illustrated Dictionary compress-send-decompress schemes, with the com- pression needed only to speed transmissions, and thus not degrading the quality of the original. See facsimile mode, ... A defect, incorrectly functioning system, mis- take, or accident. In fiber optic cables,...

Ngày tải lên: 02/07/2014, 13:20

... Grating LI:CU-i-i~:j ~~ , lIel 09 1 r'~'~~'~"'AAO"""~ elastic 1- 1 pressure I I component ,- I I I flber-t- I grating +- I support I I L ~ A long-period adjustable ... of the orientation of the grat- ing. For example, in asawtooth-shaped grating (e.g., a blazed grating), the arrow would be oriented from 419 © 2003 by CRC Press LLC Fiber...

Ngày tải lên: 02/07/2014, 13:20

... designed by Computer Control Company and bought out by Hon- eywell. They were released at about the same time as the Digital Equipment Corporation (DEC) PDP-8 minicomputers. The Series-16 computers included the DDP-116 (1965), the DDP-516 (1966), and the DDP-316 (1969). The DDP-316 was essentially a physically reduced-size version of the DDP-516. By 1960s standards, the 316 line would probabl...

Ngày tải lên: 02/07/2014, 13:20