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Topic: Error control

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	Error Control Message and Errors-to header
		When a transport or database system encounters an error in an article which should be reported to the generator of the article, the message should be sent using this special control message.
		The control message MUST have a special message-id, derived from the original message-id by appending "..ERROR" to the end of the ID, after the domain part, where "" is the class of error as described below.
		If the error is to report that the message-ID is malformed, the message MUST be constructed from the base64 encoding of the SHA-1 hash of the invariant parts of the article.
	www.templetons.com /usenet-format/errormsg.html (1566 words)

	Modem Tutorial - Error Control Protocols
		In other words, an error control protocol is "on" all the time during your online session and file transfer protocols are "on" only some of the times, namely when you are sending or receiving files.
		Even though an error control protocol is "on" all the time, we still need file transfer protocols when two modems establish a reliable link.
		It is still possible for errors to occur at either end between the serial port and the modem (in the cable) or in the computer itself.
	www.lsu.edu /OCS/its/unix/tutorial/ModemTutorial/MT-Error.html (1182 words)

	PHP: Error Control Operators - Manual
		When prepended to an expression in PHP, any error messages that might be generated by that expression will be ignored.
		This variable will be overwritten on each error, so check early if you want to use it.
		Among other things, this means that if you use "@" to suppress errors from a certain function and either it isn't available or has been mistyped, the script will die right there with no indication as to why.
	www.php.net /manual/en/language.operators.errorcontrol.php (808 words)

	Implementation Exercise for An Engineering Approach to Computer Networking
		You have to add two kinds of error control to the code.
		control the error and corruption characteristics of the line.
		To detect and correct bit corruption, each 4 bits in the input file should be encoded in a 7 bit perfect Hamming code.
	www.cs.cornell.edu /skeshav/book/error_control/index.html (849 words)

	Amazon.com: Error Control Coding, Second Edition: Books: Shu Lin,Daniel J. Costello (Site not responding. Last check: 2007-11-05)
		Using a minimum of mathematics, this volume covers the fundamentals of coding and the applications of codes to the design of real error control systems.
		Lin and Costello present error correction in method, with plenty of good examples, which those who need to know how to apply it can understand and the gory details of the theory are not as important.
		I used this book as my introduction to error correction and it continues to be a great reference book.
	www.amazon.com /Error-Control-Coding-Second-Shu/dp/0130426725 (1408 words)

	The Error Correcting Codes (ECC) Page
		Enter only the length and error correcting capability.
		This BCH code is used in control channels for cellular TDMA in the U.S. Since this code has only two-error correcting capability, fast decoding is done by pre-solving a system of two equations (the syndromes) in two unknowns (the error positions), see MacWilliams and Slone's book, chapter 3.
		The purpose of this tutorial is to introduce the reader to a forward error correction technique known as convolutional coding with Viterbi decoding.
	www.eccpage.com (1019 words)

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