JPS5791055A - Branching device - Google Patents

Branching device

Info

Publication number
JPS5791055A
JPS5791055A JP16692680A JP16692680A JPS5791055A JP S5791055 A JPS5791055 A JP S5791055A JP 16692680 A JP16692680 A JP 16692680A JP 16692680 A JP16692680 A JP 16692680A JP S5791055 A JPS5791055 A JP S5791055A
Authority
JP
Japan
Prior art keywords
external
connector
relay
internal
transmission line
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
Application number
JP16692680A
Other languages
Japanese (ja)
Inventor
Kenji Hibi
Tatsuya Maeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP16692680A priority Critical patent/JPS5791055A/en
Publication of JPS5791055A publication Critical patent/JPS5791055A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/20—Arrangements affording multiple use of the transmission path using different combinations of lines, e.g. phantom working

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To simplify the movement and extention of device and to reject the reflection noise, by providing a switching relay in a branch device, making connection/disconnection between internal and external transmission lines, and connecting impedance matching circuit selectively. CONSTITUTION:In an information processing system connected to each device 301 via a branch device 302 in multi-drop form, the device 302 consists of the 1st and 2nd connectors 401, 402, internal transmission line 403 and relay circuit 404. The connector 401 is connected to a transmission line 303 connected between branching devices, and the connector 402 is connected to an external transmission line 304 including data transmission/reception signal lines with the device 301 and a relay signal line DRL. When a relay signal DRL is given to a circuit 404, a common contact C is selected to a contact NO to connect the external and internal transmission lines 403 and 304. If no external transmission line is connected to the connector 402, the relay contact C is selected to the NC side to disconnect the internal and external transmission lines, and if no external line is connected to the connector 401, an impedance matching circuit 405 is connected.
JP16692680A 1980-11-27 1980-11-27 Branching device Pending JPS5791055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16692680A JPS5791055A (en) 1980-11-27 1980-11-27 Branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16692680A JPS5791055A (en) 1980-11-27 1980-11-27 Branching device

Publications (1)

Publication Number Publication Date
JPS5791055A true JPS5791055A (en) 1982-06-07

Family

ID=15840214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16692680A Pending JPS5791055A (en) 1980-11-27 1980-11-27 Branching device

Country Status (1)

Country Link
JP (1) JPS5791055A (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57131145A (en) * 1981-02-06 1982-08-13 Hitachi Ltd Transmission line switching device of transmission system
JPS59198046A (en) * 1983-04-25 1984-11-09 Sophia Co Ltd Transmission channel of game shop
JPS6247256U (en) * 1985-09-10 1987-03-23
US8001579B2 (en) 2008-10-16 2011-08-16 John Mezzalingua Associates, Inc. Downstream output level and/or output level tilt compensation device between CATV distribution system and CATV user
US8082570B2 (en) 2009-03-30 2011-12-20 John Mezzalingua Associates, Inc. Method and apparatus for a self-terminating signal path
US8098113B2 (en) 2009-05-29 2012-01-17 John Mezzalingua Associates, Inc. Self-terminating coaxial cable port
US8141122B2 (en) 2009-03-30 2012-03-20 John Mezzalingua Associates, Inc. RF terminate/permit system
US8181211B2 (en) 2009-03-30 2012-05-15 John Mezzalingua Associates, Inc. Total bandwidth conditioning device
US8179814B2 (en) 2009-03-30 2012-05-15 John Mezzalingua Associates, Inc. Automatic return path switching for a signal conditioning device
US8213457B2 (en) 2009-10-09 2012-07-03 John Mezzalingua Associates, Inc. Upstream bandwidth conditioning device
US8274566B2 (en) 2009-10-09 2012-09-25 John Mezzalingua Associates, Inc. Modulation analyzer and level measurement device
US8286209B2 (en) 2008-10-21 2012-10-09 John Mezzalingua Associates, Inc. Multi-port entry adapter, hub and method for interfacing a CATV network and a MoCA network
US8356322B2 (en) 2009-09-21 2013-01-15 John Mezzalingua Associates, Inc. Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network
US8385219B2 (en) 2009-10-09 2013-02-26 John Mezzalingua Associates, Inc. Upstream bandwidth level measurement device
US8429695B2 (en) 2008-10-21 2013-04-23 Ppc Broadband, Inc. CATV entry adapter and method utilizing directional couplers for MoCA signal communication
US8464301B2 (en) 2008-10-16 2013-06-11 Ppc Broadband, Inc. Upstream bandwidth conditioning device between CATV distribution system and CATV user
US8516537B2 (en) 2009-10-09 2013-08-20 Ppc Broadband, Inc. Downstream bandwidth conditioning device
US8584192B2 (en) 2009-03-30 2013-11-12 Ppc Broadband, Inc. Upstream bandwidth conditioning device
US8990881B2 (en) 2009-03-30 2015-03-24 Ppc Broadband, Inc. Upstream bandwidth conditioning device
US9264012B2 (en) 2012-06-25 2016-02-16 Ppc Broadband, Inc. Radio frequency signal splitter
US9271026B2 (en) 2008-10-16 2016-02-23 Ppc Broadband, Inc. Dynamically configurable frequency band selection device between CATV distribution system and CATV user
US9306530B2 (en) 2010-02-01 2016-04-05 Ppc Broadband, Inc. Multipath mitigation circuit for home network
US9351051B2 (en) 2008-10-13 2016-05-24 Ppc Broadband, Inc. CATV entry adapter and method for distributing CATV and in-home entertainment signals
US9363469B2 (en) 2008-07-17 2016-06-07 Ppc Broadband, Inc. Passive-active terminal adapter and method having automatic return loss control
US9647851B2 (en) 2008-10-13 2017-05-09 Ppc Broadband, Inc. Ingress noise inhibiting network interface device and method for cable television networks
US10021343B2 (en) 2010-12-21 2018-07-10 Ppc Broadband, Inc. Method and apparatus for reducing isolation in a home network
US10142677B2 (en) 2008-10-21 2018-11-27 Ppc Broadband, Inc. Entry device for a CATV network
US10212392B2 (en) 2016-06-30 2019-02-19 Ppc Broadband, Inc. Passive enhanced MoCA entry device
US11076191B2 (en) 2018-01-19 2021-07-27 Ppc Broadband, Inc. Systems and methods for extending an in-home splitter network
US11910052B2 (en) 2008-10-21 2024-02-20 Ppc Broadband, Inc. Entry device for communicating external network signals and in-home network signals

Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0258822B2 (en) * 1981-02-06 1990-12-10 Hitachi Ltd
JPS57131145A (en) * 1981-02-06 1982-08-13 Hitachi Ltd Transmission line switching device of transmission system
JPS59198046A (en) * 1983-04-25 1984-11-09 Sophia Co Ltd Transmission channel of game shop
JPH0449836B2 (en) * 1983-04-25 1992-08-12 Sofuiya Kk
JPS6247256U (en) * 1985-09-10 1987-03-23
US10257462B2 (en) 2008-07-17 2019-04-09 Ppc Broadband, Inc. Adapter for a cable-television network
US9363469B2 (en) 2008-07-17 2016-06-07 Ppc Broadband, Inc. Passive-active terminal adapter and method having automatic return loss control
US9769418B2 (en) 2008-07-17 2017-09-19 Ppc Broadband, Inc. Passive-active terminal adapter and method having automatic return loss control
US10045056B2 (en) 2008-10-13 2018-08-07 Ppc Broadband, Inc. Ingress noise inhibiting network interface device and method for cable television networks
US10187673B2 (en) 2008-10-13 2019-01-22 Ppc Broadband, Inc. Ingress noise inhibiting network interface device and method for cable television networks
US10154302B2 (en) 2008-10-13 2018-12-11 Ppc Broadband, Inc. CATV entry adapter and method for distributing CATV and in-home entertainment signals
US9781472B2 (en) 2008-10-13 2017-10-03 Ppc Broadband, Inc. CATV entry adapter and method for distributing CATV and in-home entertainment signals
US9647851B2 (en) 2008-10-13 2017-05-09 Ppc Broadband, Inc. Ingress noise inhibiting network interface device and method for cable television networks
US9351051B2 (en) 2008-10-13 2016-05-24 Ppc Broadband, Inc. CATV entry adapter and method for distributing CATV and in-home entertainment signals
US10264325B2 (en) 2008-10-16 2019-04-16 Ppc Broadband, Inc. System, method and device having teaching and commerce subsystems
US9271026B2 (en) 2008-10-16 2016-02-23 Ppc Broadband, Inc. Dynamically configurable frequency band selection device between CATV distribution system and CATV user
US10924811B2 (en) 2008-10-16 2021-02-16 Ppc Broadband, Inc. Compensation device for maintaining a desired signal quality in transmitted signals
US8001579B2 (en) 2008-10-16 2011-08-16 John Mezzalingua Associates, Inc. Downstream output level and/or output level tilt compensation device between CATV distribution system and CATV user
US8464301B2 (en) 2008-10-16 2013-06-11 Ppc Broadband, Inc. Upstream bandwidth conditioning device between CATV distribution system and CATV user
US10341718B2 (en) 2008-10-21 2019-07-02 Ppc Broadband, Inc. Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network
US10142677B2 (en) 2008-10-21 2018-11-27 Ppc Broadband, Inc. Entry device for a CATV network
US11910052B2 (en) 2008-10-21 2024-02-20 Ppc Broadband, Inc. Entry device for communicating external network signals and in-home network signals
US11528526B2 (en) 2008-10-21 2022-12-13 Ppc Broadband, Inc. Entry device for communicating external network signals and in-home network signals
US10917685B2 (en) 2008-10-21 2021-02-09 Ppc Broadband, Inc. Entry device for communicating signals between an external network and an in-home network
US10419813B2 (en) 2008-10-21 2019-09-17 Ppc Broadband, Inc. Passive multi-port entry adapter for preserving downstream CATV signal strength
US10341719B2 (en) 2008-10-21 2019-07-02 Ppc Broadband, Inc. Entry adapter for communicating external signals to an internal network and communicating client signals in the client network
US8429695B2 (en) 2008-10-21 2013-04-23 Ppc Broadband, Inc. CATV entry adapter and method utilizing directional couplers for MoCA signal communication
US10284903B2 (en) 2008-10-21 2019-05-07 Ppc Broadband, Inc. Entry adapters for frequency band blocking internal network signals
US10284904B2 (en) 2008-10-21 2019-05-07 Ppc Broadband, Inc. Entry adapters for conducting can signals and in-home network signals
US10154304B2 (en) 2008-10-21 2018-12-11 Ppc Broadband, Inc. Methods for controlling CATV signal communication between a CATV network and an in-home network, and preserving downstream CATV signal strength within the in-home network
US10154303B2 (en) 2008-10-21 2018-12-11 Ppc Broadband, Inc. Entry adapter that blocks different frequency bands and preserves downstream signal strength
US8286209B2 (en) 2008-10-21 2012-10-09 John Mezzalingua Associates, Inc. Multi-port entry adapter, hub and method for interfacing a CATV network and a MoCA network
US10149004B2 (en) 2008-10-21 2018-12-04 Ppc Broadband, Inc. Entry device and method for communicating CATV signals and MoCA in-home network signals in an entry device
US8179814B2 (en) 2009-03-30 2012-05-15 John Mezzalingua Associates, Inc. Automatic return path switching for a signal conditioning device
US8181211B2 (en) 2009-03-30 2012-05-15 John Mezzalingua Associates, Inc. Total bandwidth conditioning device
US8082570B2 (en) 2009-03-30 2011-12-20 John Mezzalingua Associates, Inc. Method and apparatus for a self-terminating signal path
US8584192B2 (en) 2009-03-30 2013-11-12 Ppc Broadband, Inc. Upstream bandwidth conditioning device
US8990881B2 (en) 2009-03-30 2015-03-24 Ppc Broadband, Inc. Upstream bandwidth conditioning device
US8141122B2 (en) 2009-03-30 2012-03-20 John Mezzalingua Associates, Inc. RF terminate/permit system
US8098113B2 (en) 2009-05-29 2012-01-17 John Mezzalingua Associates, Inc. Self-terminating coaxial cable port
US9167286B2 (en) 2009-09-21 2015-10-20 Ppc Broadband, Inc. Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network
US9860591B2 (en) 2009-09-21 2018-01-02 Ppc Broadband, Inc. Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network
US8356322B2 (en) 2009-09-21 2013-01-15 John Mezzalingua Associates, Inc. Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network
US9516376B2 (en) 2009-09-21 2016-12-06 Ppc Broadband, Inc. Passive multi-port entry adapter and method for preserving downstream CATV signal strength within in-home network
US8385219B2 (en) 2009-10-09 2013-02-26 John Mezzalingua Associates, Inc. Upstream bandwidth level measurement device
US8213457B2 (en) 2009-10-09 2012-07-03 John Mezzalingua Associates, Inc. Upstream bandwidth conditioning device
US8516537B2 (en) 2009-10-09 2013-08-20 Ppc Broadband, Inc. Downstream bandwidth conditioning device
US8274566B2 (en) 2009-10-09 2012-09-25 John Mezzalingua Associates, Inc. Modulation analyzer and level measurement device
US10790793B2 (en) 2010-02-01 2020-09-29 Ppc Broadband, Inc. Filter circuit
US11444592B2 (en) 2010-02-01 2022-09-13 Ppc Broadband, Inc. Filter circuit
US9979373B2 (en) 2010-02-01 2018-05-22 Ppc Broadband, Inc. Multipath mitigation circuit for home network
US10284162B2 (en) 2010-02-01 2019-05-07 Ppc Broadband, Inc. Multipath mitigation circuit for home network
US9306530B2 (en) 2010-02-01 2016-04-05 Ppc Broadband, Inc. Multipath mitigation circuit for home network
US10750120B2 (en) 2010-12-21 2020-08-18 Ppc Broadband, Inc. Method and apparatus for reducing isolation in a home network
US11070766B2 (en) 2010-12-21 2021-07-20 Ppc Broadband, Inc. Method and apparatus for reducing isolation in a home network
US10021343B2 (en) 2010-12-21 2018-07-10 Ppc Broadband, Inc. Method and apparatus for reducing isolation in a home network
US9929457B2 (en) 2012-06-25 2018-03-27 Ppc Broadband, Inc. Radio frequency signal splitter
US9641147B2 (en) 2012-06-25 2017-05-02 Ppc Broadband, Inc. Radio frequency signal splitter
US9264012B2 (en) 2012-06-25 2016-02-16 Ppc Broadband, Inc. Radio frequency signal splitter
US10212392B2 (en) 2016-06-30 2019-02-19 Ppc Broadband, Inc. Passive enhanced MoCA entry device
US10582160B2 (en) 2016-06-30 2020-03-03 Ppc Broadband, Inc. MoCA entry device
US11076129B2 (en) 2016-06-30 2021-07-27 Ppc Broadband, Inc. MoCA entry device
US11647162B2 (en) 2016-06-30 2023-05-09 Ppc Broadband, Inc. MoCA entry device
US11076191B2 (en) 2018-01-19 2021-07-27 Ppc Broadband, Inc. Systems and methods for extending an in-home splitter network

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