LINE TERMINATING LSI USING ECHO CANCELLING METHOD FOR ISDN SUBSCRIBER LOOP TRANSMISSION.

Misao Fukuda; Toshitaka Tsuda; Hirohisa Gambe; Youzi Hino

doi:10.1109/49.1915

LINE TERMINATING LSI USING ECHO CANCELLING METHOD FOR ISDN SUBSCRIBER LOOP TRANSMISSION.

Misao Fukuda^*, Toshitaka Tsuda, Hirohisa Gambe, Youzi Hino

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A 144-kb/s digital subscriber loop (DSL) transmission system based on hybrid transmission with an echo canceling method is described. It incorporates advanced LSI technology to obtain compactness, low cost, and high reliability. An echo canceler (EC) LSI has been developed using CMOS technology. Combined with the multiplexing processor (MXP) LSI, the EC LSI provides basic DSL equipment functions. A specially arranged frame format with a newly developed digital phase-locked loop (DPLL) circuit for stable timing extraction, an automatic balancing network, and a two-stage echo canceler characterize the system. Using this line termination circuit, the DSL equipment showed a reach of over 6 km when used with 0. 5 mm diameter cable for 160-kb/s bidirectional digital transmission.

Original language	English
Pages (from-to)	476-483
Number of pages	8
Journal	IEEE Journal on Selected Areas in Communications
Volume	6
Issue number	3
DOIs	https://doi.org/10.1109/49.1915
Publication status	Published - 1988 Apr

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

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10.1109/49.1915

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title = "LINE TERMINATING LSI USING ECHO CANCELLING METHOD FOR ISDN SUBSCRIBER LOOP TRANSMISSION.",

abstract = "A 144-kb/s digital subscriber loop (DSL) transmission system based on hybrid transmission with an echo canceling method is described. It incorporates advanced LSI technology to obtain compactness, low cost, and high reliability. An echo canceler (EC) LSI has been developed using CMOS technology. Combined with the multiplexing processor (MXP) LSI, the EC LSI provides basic DSL equipment functions. A specially arranged frame format with a newly developed digital phase-locked loop (DPLL) circuit for stable timing extraction, an automatic balancing network, and a two-stage echo canceler characterize the system. Using this line termination circuit, the DSL equipment showed a reach of over 6 km when used with 0. 5 mm diameter cable for 160-kb/s bidirectional digital transmission.",

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AU - Fukuda, Misao

AU - Tsuda, Toshitaka

AU - Gambe, Hirohisa

AU - Hino, Youzi

PY - 1988/4

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N2 - A 144-kb/s digital subscriber loop (DSL) transmission system based on hybrid transmission with an echo canceling method is described. It incorporates advanced LSI technology to obtain compactness, low cost, and high reliability. An echo canceler (EC) LSI has been developed using CMOS technology. Combined with the multiplexing processor (MXP) LSI, the EC LSI provides basic DSL equipment functions. A specially arranged frame format with a newly developed digital phase-locked loop (DPLL) circuit for stable timing extraction, an automatic balancing network, and a two-stage echo canceler characterize the system. Using this line termination circuit, the DSL equipment showed a reach of over 6 km when used with 0. 5 mm diameter cable for 160-kb/s bidirectional digital transmission.

AB - A 144-kb/s digital subscriber loop (DSL) transmission system based on hybrid transmission with an echo canceling method is described. It incorporates advanced LSI technology to obtain compactness, low cost, and high reliability. An echo canceler (EC) LSI has been developed using CMOS technology. Combined with the multiplexing processor (MXP) LSI, the EC LSI provides basic DSL equipment functions. A specially arranged frame format with a newly developed digital phase-locked loop (DPLL) circuit for stable timing extraction, an automatic balancing network, and a two-stage echo canceler characterize the system. Using this line termination circuit, the DSL equipment showed a reach of over 6 km when used with 0. 5 mm diameter cable for 160-kb/s bidirectional digital transmission.

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LINE TERMINATING LSI USING ECHO CANCELLING METHOD FOR ISDN SUBSCRIBER LOOP TRANSMISSION.

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