Design of a Multi-Code Wide Band Encoder-Decoder System


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Abstract


In this paper, a new design of multi-code line encoder / decoder (CODEC) is presented. A single circuit encodes and decodes data in four different formats: differential Manchester, bi-phase-mark, bi-phase-space and inverse differential Manchester. The CODEC is insensitive to clock frequency variations. Once the encoder is fixed to work at the highest frequency of operation of the IC technology used, it can operate at any lower frequency. Meanwhile, the decoder is insensitive to clock frequency variations within ± 33% range. SPICE simulation and hardware implementation utilizing TTL I.C.'s showed that the data could be encoded / decoded using any one of the codes presented in this paper.  Due to its simple design it possible to implement the whole CODEC in the integrated format.
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Keywords


Line Codes; Encoder; Decoder; Differential Manchester Code; Inverse Differential Manchester Code; Biphase Mark; Biphase Space

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References


S. Hayken, Communication Systems (John Wiley, 2001).

G. Maral, and M. Bousquet, Satellite Communication Systems - Techniques and Technology (John Wiley, 1993).

S. Vasana, Biphase code detection for differential Manchester encoded signals in digital communications, AfricaIMSA 2010: IASTED African Conference on Internet and Multimedia Systems and Applications, Sharm El Sheikh, Egypt , March 15-17, Pages 243-248, 2010

Z.Hu, J. Sun, F. Chen, K. Chen, B. Sun, Y. Cao, H. Liu, High speed optical differential Manchester code generator using nested Mach–Zehnder interferometers, Optics Communications, Vol. 285, n. 8, 2012, pp 2057–2060.
http://dx.doi.org/10.1016/j.optcom.2011.12.104

G.K. Maity, S.P Maity and J.N. Roy, All-optical Manchester code generator using TOAD-based D flip-flop, IEEE International Conference on Devices, Circuits and Systems (ICDCS), Coimbatore, Tamil Nadu, India, 15-16 March 2012, pp. 479 – 481,.
http://dx.doi.org/10.1109/icdcsyst.2012.6188761

Z16C30 Universal Serial Controller User Manual (Zilog Inc. 2001).

A. J. Al-Sammak,, Encoder Circuit for inverse differential Manchester code Operating at any Frequency, IEE Electronics Letters, Vol. 38, No. 12, 2002, pp. 567 – 568.
http://dx.doi.org/10.1049/el:20020368

A. J. Al-Sammak and R. Al-Alawi, An encoder for differential Manchester and inverse differential Manchester line codes, Proceedings – C, Institute of Electrical Engineers of Japan, Vol. 125-C, No. 2, 2005, pp. 379-380.
http://dx.doi.org/10.1541/ieejeiss.125.379

Amateur satellite: www.scit.wlv.ac.uk/vhfc/iaru.r1.vhfm.4e/7A.html.

G. S.Sidhu, , R. F. Andrews, and A. B. Oppenheimer, Inside AppleTalk, Don Mills, (Addison-Wesley Publishing Co., 1990).

IEEE. Token Ring Access Method and Physical Layer Specifications, ANSI/IEEE Standard 802.5, ISO/IEC 8802-5:1998E, 1998.

M. Elkhatib, and J. Pu, Biphase mark code decoder and method of operation, US Patent application number: 20110261969, Publication date: 27-10-2011.

R. Al-Alawi and A. J. Al-Sammak, Design of a Multicode Bi-Phase Encoder for Data Transmission, Journal of Circuits, Systems, and Computers (JCSC) Vol 15, n. 1, February 2006, pp 1-12.
http://dx.doi.org/10.1142/s0218126606002897

A.J. Al-Sammak, Multipurpose Encoder and Decoder System, UK patent GB2374768, 2004.

N. D. Alexandru, Improved encoder circuit for inverse differential Manchester code, 8th International Conference on Development and Application Systems, Suceava, Romania, 2006.


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