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Comma-free code. A comma-free code is block code in which no concatenation of two code words contains a valid code word that overlaps both. [1] Comma-free codes are also known as self-synchronizing block codes [2] because no synchronization is required to find the beginning of a code word.
How a link code word (a 16bit word) is encoded in a train of fast link pulses (which is shown in Image:Fast-link-pulses.svg). This is part of the autonegotiating process used by Ethernet devices over twisted pairs and RJ45 connectors. Date: 30 June 2006: Source: Own work: Author: Paolo Liberatore: Permission (Reusing this file) Own work
XT. Detached from MW convoys to Tripoli, Libya, or plying the route from Alexandria, Egypt, to Tripoli. Feb 1943 to Jul 1944. For operations in North Africa or for Operation Husky; reverse TX. XTG. Alexandria, Egypt via Tripoli, Libya, to Gibraltar. Jun 1943. Two convoys (XTG.1 and XTG.2); reverse GTX. XW.
WordPerfect ( WP) is a word processing application, now owned by Alludo, [3] with a long history on multiple personal computer platforms. At the height of its popularity in the 1980s and early 1990s, it was the dominant player in the word processor market, displacing the prior market leader WordStar . It was originally developed under contract ...
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The bus-invert encoding technique uses an extra signal (INV) to indicate the "polarity" of the data. Having a bus-invert code word INV@x where @ is the concatenation operator and x denotes either the source word or its ones' complement, the bus-invert decoder takes the code word and produces the corresponding source word. If the INV signal is 1 ...
Two-letter country codes. Two-letter country codes are used to represent countries and states (often both widely recognized and not) as a code of two letters. ISO 3166-1 alpha-2 is the main set of two-letter country codes that is currently used. This standard set of codes is a part of ISO 3166-1, also maintains a list of three-letter codes for ...
Shannon–Fano coding. In the field of data compression, Shannon–Fano coding, named after Claude Shannon and Robert Fano, is one of two related techniques for constructing a prefix code based on a set of symbols and their probabilities (estimated or measured). Shannon's method chooses a prefix code where a source symbol. i {\displaystyle i}