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Topic: Hagelbarger code


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In the News (Thu 23 Nov 17)

  
  Error correction and detection
Information theory tells us that whatever the probability of error in transmission or storage, it is possible to construct error-correcting codes in which the likelihood of failure is arbitrarily low, although this requires adding increasing amounts of redundant data to the original, which might not be practical when the error probability is very high.
Other block error-correcting codes, such as Reed-Solomon codes transform a chunk of bits into a (longer) chunk of bits in such a way that errors up to some threshold in each block can be detected and corrected.
LT codes are near optimal rateless erasure correcting codes.
www.encyclopediapro.com /mw/Error_correction_and_detection   (1649 words)

  
 Tele-Communication (Telecom) Terms Glossary and Dictionary - H
H.264 is designed as a simple and straightforward video coding with enhanced compression performance, to provide a “network-friendly” video representation.
Hamming code, sometimes referred to as an Error Correction Code (ECC), is an algorithm that can be used to detect errors in individual bits of transmitted data, and sometimes (dependent on the exact code used) correct that error.
Although not particularly powerful, they are one of the "perfect" codes in that its standard array has all of the error patterns that can exist for single errors.
www.networkdictionary.com /telecom/h.php   (2274 words)

  
  Error detection and correction Summary
Convolutional codes use smaller blocks of data, and the coding of one block of data is done in a fashion that depends upon the state of the encoder as well as the data that is to be encoded.
Information theory tells us that whatever the probability of error in transmission or storage, it is possible to construct error-correcting codes in which the likelihood of failure is arbitrarily low, although this requires adding increasing amounts of redundant data to the original, which might not be practical when the error probability is very high.
Other block error-correcting codes, such as Reed-Solomon codes transform a chunk of bits into a (longer) chunk of bits in such a way that errors up to some threshold in each block can be detected and corrected.
www.bookrags.com /Error_detection_and_correction   (3452 words)

  
 Error detection and correction - Wikipedia, the free encyclopedia
An error-correcting code (ECC) is a code in which each data signal conforms to specific rules of construction so that departures from this construction in the received signal can generally be automatically detected and corrected.
The effectiveness of the coding scheme is measured in terms of the Coding gain, which is the difference of the SNR levels of the uncoded and coded systems required to reach the same BER levels.
LT codes are near optimal rateless erasure correcting codes.
en.wikipedia.org /wiki/Error-correcting_code   (2099 words)

  
 Multiple decoding system - United States Patent 4,038,636
This code is called a 11-5 code because it consists of eleven data bits and five coding bits.
Consequently, this code can be used for data words which may consist of any number of data bits or in the other mode where 11 bit segments are coded, transmitted, decoded and then decommutated.
If the code had not identified a particular subset, the choice would have to be made from 120 combinations; but the coding and checking technique has made a selection to one of 15 subsets, and the choices available have been reduced to only eight.
xrint.com /patents/us/4038636   (7360 words)

  
 Smtp Error Code Best Anti Spam   (Site not responding. Last check: 2007-10-11)
Hagelbarger code - In telecommunication, a Hagelbarger code is a convolutional code that enables error bursts to be corrected provided that there are relatively long error-free intervals between the error bursts.
BCH code - A BCH (Bose, Ray-Chaudhuri, Hocquenghem) code is a much studied code within the study of coding theory and more specifically error-correcting codes.
Low-density parity-check code - A low-density parity-check code (LDPC code) is an error correcting code, a method of transmitting message over a noisy transmission channel.
www.iconcci.com /smtperrorcode.html   (566 words)

  
 Multitone pushbutton dial phase shift scanning circuitry - United States Patent 4,007,459
The 2-out-of-7 code results from a dial arrangement wherein there are four rows and three columns of pushbuttons.
It should be noted that at most two logic state transitions occur in any of the codes produced by shift register 6213 which are represented by the entries of columns A through D in the truth table.
After nine master clock pulse periods the Q8 output of shift register 6207 goes to a 1 and, since the pushbutton initially assumed to be depressed is in column one, both inputs to a NAND gate 6209 are 1 thereby inhibiting it.
xrint.com /patents/us/by10/4007459   (11055 words)

  
 360 Box Code Error X
Introduction to the Theory of Error-Correcting Codes, Third Edition is the ideal textbook for senior-undergraduate and first-year graduate courses on error-correcting codes in mathematics, computer science, and electrical engineering.
As Linksys had based its source code on Linux, which is licensed under the GNU General Public Licence (GPL), it was therefore bound to release its modified source code, making the development of aftermarket firmware like WiFi-Box possible.
Discusses the problem of reconciling coding applied to a number of  network layers as a classroom resource and a better understanding of the competition in January.
ga76.mysl-clan.com /360boxcodeerrorx.html   (1185 words)

  
 Yenra Glossary H   (Site not responding. Last check: 2007-10-11)
Hagelbarger code - A convolutional code that enables error bursts to be corrected provided that there are relatively long error-free intervals between the error bursts.
In facsimile systems, the relationship between the amplitude of the facsimile signal to either the density of the object or the density of the recorded copy when only a portion of the system is under consideration.
Huffman coding - A coding technique used to compact data by representing the more common events with short codes and the less common events with longer codes.
www.yenra.net /glossary/h.html   (3752 words)

  
 Free Asp Code
Repetition code - Repetition code is a (n,1) coding scheme that repeats the bits across a channel to achieve error free communication.
Repetition code is generally a very naive method of encoding data across a channel, and it is not preferred
Alternative terms for free software - Free software is a term used since 1983 to describe software whose source code is available, and which can be studied, copied, modified, and redistributed by anyone that receives a copy.
www.diamonddata-software.com /freeaspcode.html   (516 words)

  
 Synthesizer of multifrequency code signals - Patent 3999049
A synthesizer of multifrequency signals formed by a "m out of M" code combination of m concomitant sinusoidal component signals, said m component signals having different frequencies, which are selected from a plurality of M predetermined frequencies, said M frequencies all being equal to sub-multiples of a common clock signal frequency, said synthesizer comprising:
A synthesizer of multifrequency signals each formed by a "m out of M" code combination of m concomitant sinusoidal component signals, said m component signals having different frequencies which are selected from a plurality of M predetermined frequencies, said M frequencies all being equal to submultiples of a common clock signal frequency, said synthesizer comprising:
In the multifrequency code used here the frequencies of the code are voiceband frequencies which, allowing for a tolerance, are integral sub-multiples of a single fundamental frequency.
www.freepatentsonline.com /3999049.html   (4475 words)

  
 99712 Zip Code (Fox, Alaska) Detailed Profile - residents and real estate info
According to our research of public records there were 13 registered sex offenders living in 99712 zip code in early 2007.
Nearest zip codes: 99703, 99705, 99701, 99775, 99709, 99725.
Housing units in zip code 99712 with a mortgage: 1,414 (119 second mortgage, 87 home equity loan, 5 both second mortgage and home equity loan)
www.city-data.com /zips/99712.html   (2198 words)

  
 Canon Copier Error Code
Introduction to the Theory of Error-Correcting Codes, Third Edition is the ideal textbook for senior-undergraduate canon copier error code and first-year graduate courses on error-correcting codes in mathematics, computer science, canon copier error code and electrical engineering.
Error-correcting code - In information theory and coding, an error-correcting code or ECC is a code in which each data signal conforms to specific rules of construction so that departures from this construction in the received signal can generally be automatically detected and corrected.
In technical terms a BCH code is a multilevel, cyclic, error-correcting, variable-length digital code used to correct multiple random error patterns.
ju61.triptych03.com /canoncopiererrorcode.html   (884 words)

  
 Data Link Layer
Forward error correction uses codes containing sufficient redundancy to prevent errors by detecting and correcting them at the receiving end without retransmission of the original message.
Hagelbarger code (corrects up to 6 consecutive bit errors)
Asynchronous Transmission is often referred to as start-stop transmission because the transmitting device can transmit a character whenever it is convenient, and the receiving device will accept that character.
www.angelfire.com /ut/cnst/chap05.html   (1558 words)

  
 Site Tracker Web
Trampoline emulation Trampolines are usually implemented by gcc as small pieces of code generated at runtime on the field of battle had existed.
Third, he ignored the similar experiences of Napoleon Bonaparte nearly two hundered and fifty years earlier in his attempt to execute memory during and after it's been possible to write to it, until that memory is destroyed; and thus, that code cannot be satisfied at that offset.
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 SIMPLEX Educational Computer -- Chuck's FPGA Stuff
That machine is implemented in card stock as you might imagine and it operated by manually moving a pointer through memory and writing and erasing values on the memory sheet.
It was written by David Hagelbarger and Saul Fingerman.
The special code 999 will dump all state to the console.
www.mcmanis.com /chuck/Computers/simplex.html   (1774 words)

  
 Bar Code Technology - Information
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home.tiscali.de /onlineinfo/bar-code-technology.html   (283 words)

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