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http://dx.doi.org/10.13067/JKIECS.2011.6.5.657

Study on the ASCII Code in the side of the Transmission Efficiency in Data Communications  

Hong, Wan-Pyo (한세대학교 정보통신공학과)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.6, no.5, 2011 , pp. 657-664 More about this Journal
Abstract
This paper proposes the revised ASCII code. The study started with consideration whether the ASCII code is proper or not in the side of the transmission efficiency in data communications. In data communications, when the consecutive "0" bits from the information devices input into the line coder, its consecutive "0" bits are scrambled to the predetermined patterns not to the consecutive "0" signal. The paper used to study with the statistical data for the frequency of the letters of the alphabets and the proposed rule of characters coding in reference. As a result of the study, when the proposed ASCII code is applied, the operation efficiency of the scrambler in the line coder is improved upto average 30%.
Keywords
ASCII; Line code; HDB-3; Scramble; Unicode;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 산업자원부 기술표준원, "정보 교환용 부호계(한글 및 한자) 부속서 3. 보조 부호계(2바이트 조합형 부호계", KS X 1001 : 2004, 2004년 12월 28일 개정.
2 산업자원부 기술표준원,"KS C 5601：1987(1987년 고침)：정보 교환용 부호(한글 및 한자)", 2004년 12월 28일 개정.
3 ITU-T, "Physical/electrical characteristics of hierarchical digital interfaces", ITU-T Recommendation G.703, pp. 24-41, Oct., 1998.
4 TTA, "Test Method for Telecommunication Terminal Equipment", TTA Standard TTAS. KO-05.0028/R1, pp. 306-451, Revised on 23 Dec., 2004.
5 Behrouz A. Forouzan, "Data communications", McGraw Hill Korea, pp. 132-134, Jan., 2008.
6 홍완표, "데이터 전송 효율을 고려한 3x4비트 1바이트 문자 부호화 규칙에 관한 연구", 한국전자통신학회 논문지, 6권, 4호, pp. 499-504, 2011.
7 http://en.wikipedia.org/wiki/ASCII#His- tory
8 Mary Brandel, "1963: The Debut of ASCII: CNN", Jul., 6, 1999.
9 American Standards Association, "American Standard Code for Information Interchange", ASA X3.4-1963, Jun., 17, 1963.
10 ANSI, "American National Standard for Information Systems-Coded Character Sets- 7-Bit American National Standard Code for Information Interchange (7-Bit ASCII)", ANSI X3.4-1986, Mar., 26, 1986.
11 Internet Assigned Numbers Authority, "Character Sets", May, 14, 2007.
12 Davis, Mark "Unicode nearing 50% of the web", Official Google Blog. Google. http://googleblog.blogspot.com /2010/01/uni code-nearing-50-of-web.html. Retrieved 2010- 08-15, Jan., 28, 2010.