Title:
【発明の名称】2値信号伝送システム
Document Type and Number:
Japanese Patent JP2834170
Kind Code:
B2
Abstract:
In a system for transmitting a binary source signal from a data transmitter to a data receiver through a noisy dispersive channel, the data transmitter comprises a sliding block encoder which converts the binary source signal at a given symbol rate 1/T into an encoded binary data signal at a symbol rate P/TN, where P and N are positive integers such that N/P log(3)/2 + 0.79248. Since the channel introduces intersymbol interference and noise into the encoded data signal, the data receiver comprises the cascade of a equalizer, a sampler and a reconstruction circuit which serves to reconstruct the binary source signal at the symbol rate 1/T. The improved reconstruction circuit consists of a detector in a cascade with a decoder with a decoder with memory, while the equalizer, sampler and detector are arranged for the detection of a ternary data signal at the symbol rate P/(2NT).
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Inventors:
YAN BERUGUMANSU
MITA SEIICHI
IZUMIDA MORIJI
DOI NOBUKAZU
MITA SEIICHI
IZUMIDA MORIJI
DOI NOBUKAZU
Application Number:
JP1648689A
Publication Date:
December 09, 1998
Filing Date:
January 27, 1989
Export Citation:
Assignee:
HITACHI SEISAKUSHO KK
FUIRITSUPUSU FURUUIRANPENFUABURIKEN NV
FUIRITSUPUSU FURUUIRANPENFUABURIKEN NV
International Classes:
H03M5/06; H04L25/03; H03M5/14; H04L25/49; H04L25/497; (IPC1-7): H04L25/49; H04L25/497
Attorney, Agent or Firm:
Ogawa Katsuo