JP4486422B2 - 集中分岐型ネットワークシステム及びジョイントコネクタ - Google Patents
集中分岐型ネットワークシステム及びジョイントコネクタ Download PDFInfo
- Publication number
- JP4486422B2 JP4486422B2 JP2004187878A JP2004187878A JP4486422B2 JP 4486422 B2 JP4486422 B2 JP 4486422B2 JP 2004187878 A JP2004187878 A JP 2004187878A JP 2004187878 A JP2004187878 A JP 2004187878A JP 4486422 B2 JP4486422 B2 JP 4486422B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- joint connector
- branch
- network system
- impedance
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0278—Arrangements for impedance matching
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4086—Bus impedance matching, e.g. termination
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21123—Impedance matching
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Dc Digital Transmission (AREA)
Description
2 伝送路
2a 幹線路
2b 分岐路
3a,3b ジョイントコネクタ
P1,P2 集中分岐点
T1〜T8 接続端子
11 導体
13a,13b ジョイントコネクタ
14 等価回路
Claims (7)
- 伝送路に接続された複数のジョイントコネクタを有し、各ジョイントコネクタは、それぞれ複数に分岐した分岐路にノードが接続されており、一のジョイントコネクタと他のジョイントコネクタとの間で通信を行うようにした集中分岐型ネットワークシステムにおいて、
前記各ジョイントコネクタは、複数のインピーダンス回路の直列接続回路を有し、該直列接続回路の一端は、前記伝送路に接続され、
前記直列接続回路の一端、他端、及び各インピーダンス回路の接続点にそれぞれノードを接続したことを特徴とする集中分岐型ネットワークシステム。 - 前記インピーダンス回路は、蛇行状に形成される導体であることを特徴とする請求項1に記載の集中分岐型ネットワークシステム。
- 前記インピーダンス回路は、前記伝送路と等価的に構成されたLC回路であることを特徴とする請求項1に記載の集中分岐型ネットワークシステム。
- 前記ノードは、車両に搭載される電装機器であり、前記伝送路は、車両用ネットワーク用の伝送路であることを特徴とする請求項1〜請求項3のいずれか1項に記載の集中分岐型ネットワークシステム。
- 伝送路の集中分岐点に設けられ、複数のノードへの分岐路を形成するジョイントコネクタにおいて、
複数のインピーダンス回路の直列接続回路を有し、該直列接続回路の一端は、前記伝送路を介して他のジョイントコネクタに接続され、
前記直列接続回路の一端、他端、及び各インピーダンス回路の接続点にそれぞれノードを接続したことを特徴とするジョイントコネクタ。 - 前記インピーダンス回路は、蛇行状に形成される導体であることを特徴とする請求項5に記載のジョイントコネクタ。
- 前記インピーダンス回路は、前記伝送路と等価的に構成されたLC回路であることを特徴とする請求項5に記載のジョイントコネクタ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004187878A JP4486422B2 (ja) | 2004-06-25 | 2004-06-25 | 集中分岐型ネットワークシステム及びジョイントコネクタ |
EP05013722.3A EP1622037B1 (en) | 2004-06-25 | 2005-06-24 | Integrated branching network system and joint connector |
US11/165,343 US7388452B2 (en) | 2004-06-25 | 2005-06-24 | Integrated branching network system and joint connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004187878A JP4486422B2 (ja) | 2004-06-25 | 2004-06-25 | 集中分岐型ネットワークシステム及びジョイントコネクタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006012592A JP2006012592A (ja) | 2006-01-12 |
JP4486422B2 true JP4486422B2 (ja) | 2010-06-23 |
Family
ID=35285412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004187878A Expired - Fee Related JP4486422B2 (ja) | 2004-06-25 | 2004-06-25 | 集中分岐型ネットワークシステム及びジョイントコネクタ |
Country Status (3)
Country | Link |
---|---|
US (1) | US7388452B2 (ja) |
EP (1) | EP1622037B1 (ja) |
JP (1) | JP4486422B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4767025B2 (ja) * | 2006-01-25 | 2011-09-07 | 株式会社オートネットワーク技術研究所 | 分岐コネクタ |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3832647A (en) * | 1973-11-13 | 1974-08-27 | Bell Telephone Labor Inc | Signal distribution network |
US4475191A (en) * | 1982-12-10 | 1984-10-02 | At&T Bell Laboratories | Distributed time division multiplexing bus |
US5787367A (en) * | 1996-07-03 | 1998-07-28 | Chrysler Corporation | Flash reprogramming security for vehicle computer |
US6323672B1 (en) | 1997-06-25 | 2001-11-27 | Sun Microsystems, Inc. | Apparatus for reducing reflections when using dynamic termination logic signaling |
JPH1145138A (ja) * | 1997-07-25 | 1999-02-16 | Mitsubishi Electric Corp | 高速バス回路方式 |
US6449308B1 (en) * | 1999-05-25 | 2002-09-10 | Intel Corporation | High-speed digital distribution system |
US6530062B1 (en) * | 2000-03-10 | 2003-03-04 | Rambus Inc. | Active impedance compensation |
KR100399594B1 (ko) * | 2000-05-04 | 2003-09-26 | 삼성전자주식회사 | 시스템 보드 및 이 보드의 임피이던스 조절 방법 |
EP1177951B1 (en) * | 2000-08-02 | 2006-07-26 | Honda Giken Kogyo Kabushiki Kaisha | Wire harness structure |
JP2003044189A (ja) * | 2001-07-30 | 2003-02-14 | Fujitsu Ltd | 情報処理装置及び回路基板並びにモジュール接続方法 |
JP2003204340A (ja) * | 2001-10-31 | 2003-07-18 | Yazaki Corp | 車載用多重通信装置 |
US6784674B2 (en) * | 2002-05-08 | 2004-08-31 | Formfactor, Inc. | Test signal distribution system for IC tester |
US6744332B2 (en) * | 2002-06-21 | 2004-06-01 | Hewlett-Packard Development Company, L.P. | Four-drop bus with matched response |
-
2004
- 2004-06-25 JP JP2004187878A patent/JP4486422B2/ja not_active Expired - Fee Related
-
2005
- 2005-06-24 US US11/165,343 patent/US7388452B2/en active Active
- 2005-06-24 EP EP05013722.3A patent/EP1622037B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2006012592A (ja) | 2006-01-12 |
US20060062239A1 (en) | 2006-03-23 |
EP1622037B1 (en) | 2018-09-05 |
US7388452B2 (en) | 2008-06-17 |
EP1622037A2 (en) | 2006-02-01 |
EP1622037A3 (en) | 2006-11-08 |
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