JP2004159340A - 加入者インターフェース回路 - Google Patents
加入者インターフェース回路 Download PDFInfo
- Publication number
- JP2004159340A JP2004159340A JP2003377648A JP2003377648A JP2004159340A JP 2004159340 A JP2004159340 A JP 2004159340A JP 2003377648 A JP2003377648 A JP 2003377648A JP 2003377648 A JP2003377648 A JP 2003377648A JP 2004159340 A JP2004159340 A JP 2004159340A
- Authority
- JP
- Japan
- Prior art keywords
- interface circuit
- subscriber line
- adsl
- driver
- line interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0421—Circuit arrangements therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13039—Asymmetrical two-way transmission, e.g. ADSL, HDSL
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1319—Amplifier, attenuation circuit, echo suppressor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13191—Repeater
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13202—Network termination [NT]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13302—Magnetic elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13305—Transistors, semiconductors in general
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13306—Ferro-electric elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1332—Logic circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13322—Integrated circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephonic Communication Services (AREA)
- Filters And Equalizers (AREA)
- Communication Control (AREA)
Abstract
【解決手段】出力ドライバ102によりディジタル・データを与えられる電話線110に音声信号を与えるとき、加入者線インターフェース回路(SLIC)106とこれに結合する従来型の電話システム(POTS)分配器108とを含むインターフェース回路を設ける。加入者線インターフェース回路106の出力インピーダンスは30KHzより高く約1100KHzより低い少なくとも複数の周波数で約2.2キロオームより大きいので、ADSLシステム内に過度の負荷がかかることはない。
【選択図】図2
Description
(1) 加入者線インターフェース回路であって、
データ・ドライバにより広帯域データも与えられる電話線に音声信号を与える出力ドライバと、
前記出力ドライバに結合するフィルタと、
とで構成し、前記加入者線インターフェース回路の出力インピーダンスは30KHzより高い少なくとも複数の周波数で約2.2キロオームより大きい、
加入者線インターフェース回路。
(5) 前記フィルタは次の伝達関数
を実現する、第1項記載の加入者線インターフェース回路。
(6) 前記データ・ドライバは前記電話線に結合する非同期ディジタル加入者線ドライバで構成する、第1項記載の加入者線インターフェース回路。
前記電話線に結合してディジタル・データ信号を前記電話線に与える非同期ディジタル加入者線ドライバと、
前記電話線に結合する分配器と、
前記分配器に結合する加入者線インターフェース回路であって、音声信号を前記電話線に与える出力ドライバと前記出力ドライバに結合するフィルタとで構成し、前記加入者線インターフェース回路の出力インピーダンスは30KHzより高い少なくとも複数の周波数で約2.2キロオームより大きい、加入者線インターフェース回路と、
で構成する通信システム。
前記電話線に結合してディジタル・データ信号を前記電話線に与える非同期ディジタル加入者線ドライバと、
前記電話線に結合する分配器と、
音声信号を前記電話線に与え、また30KHzより高い少なくとも複数の周波数で約2.2キロオームより大きな出力インピーダンスを与える手段と、
で構成する通信システム。
104 ADSLドライバ・インターフェース
106 加入者線インターフェース回路(SLIC)
108 従来型の電話システム(POTS)分配器
110 電話線
Claims (2)
- 加入者線インターフェース回路であって、
データ・ドライバにより広帯域データを与えられる電話線に音声信号を与える出力ドライバと、
前記出力ドライバに結合するフィルタと、
を備え、前記加入者線インターフェースの出力インピーダンスは30KHzより高い少なくとも複数の周波数で約2.2キロオームより大きい、
加入者線インターフェース回路。 - 非同期ディジタル加入者線ドライバにかかる負荷を制御する方法であって、30KHzより高い少なくとも複数の周波数で約2.2キロオームより大きな出力インピーダンスを持つ加入者線インターフェース回路を提供する、負荷を制御する方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42443702P | 2002-11-07 | 2002-11-07 | |
US10/427,770 US7006626B2 (en) | 2002-11-07 | 2003-04-30 | Subscriber interface circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2004159340A true JP2004159340A (ja) | 2004-06-03 |
Family
ID=32110367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003377648A Pending JP2004159340A (ja) | 2002-11-07 | 2003-11-07 | 加入者インターフェース回路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7006626B2 (ja) |
EP (1) | EP1418790A3 (ja) |
JP (1) | JP2004159340A (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1898663B1 (en) * | 2006-09-08 | 2011-11-02 | Alcatel Lucent | A filter device for passing telephony signals |
US9712341B2 (en) * | 2009-01-16 | 2017-07-18 | Tekelec, Inc. | Methods, systems, and computer readable media for providing E.164 number mapping (ENUM) translation at a bearer independent call control (BICC) and/or session intiation protocol (SIP) router |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5856758A (en) * | 1996-11-20 | 1999-01-05 | Adtran, Inc. | Low distortion driver employing positive feedback for reducing power loss in output impedance that effectively matches the impedance of driven line |
US6002684A (en) | 1997-07-14 | 1999-12-14 | Conexant Systems, Inc. | Method and system for achieving faster asymmetric data transmission through the public switched telephone network |
US6285672B1 (en) | 1997-09-16 | 2001-09-04 | Rockwell Semiconductor Systems, Inc. | Method and system for achieving improved data transmission through the public switched telephone network |
US6483904B1 (en) | 1998-04-27 | 2002-11-19 | 3Com Corporation | Method and system for high-speed interface access to a computer network using a subscriber telephone line |
DE10045721C1 (de) * | 2000-09-15 | 2002-03-07 | Infineon Technologies Ag | Differentielle Leitungstreiberschaltung |
US6795495B2 (en) * | 2000-09-25 | 2004-09-21 | Tioga Technologies, Inc. | Line driver with output impedance synthesis |
DE10049331C1 (de) * | 2000-10-05 | 2002-06-13 | Infineon Technologies Ag | Breitbandtreiber |
-
2003
- 2003-04-30 US US10/427,770 patent/US7006626B2/en not_active Expired - Lifetime
- 2003-11-07 EP EP03104125A patent/EP1418790A3/en not_active Withdrawn
- 2003-11-07 JP JP2003377648A patent/JP2004159340A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US20040091098A1 (en) | 2004-05-13 |
EP1418790A2 (en) | 2004-05-12 |
EP1418790A3 (en) | 2008-01-23 |
US7006626B2 (en) | 2006-02-28 |
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