JPS4871111A - - Google Patents
Info
- Publication number
- JPS4871111A JPS4871111A JP12706372A JP12706372A JPS4871111A JP S4871111 A JPS4871111 A JP S4871111A JP 12706372 A JP12706372 A JP 12706372A JP 12706372 A JP12706372 A JP 12706372A JP S4871111 A JPS4871111 A JP S4871111A
- Authority
- JP
- Japan
- 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.)
- Granted
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/44—Arrangements for feeding power to a repeater along the transmission line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/08—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/08—Arrangements for interconnection between switching centres for phantom working
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2163284A DE2163284C2 (de) | 1971-12-20 | 1971-12-20 | Schaltungsanordnung für Teilnehmer-Anschlußleitungen mit zwei symmetrischen Doppelleitungen für zusätzliche Zeichenübertragung, insbesondere für Bildfernsprecher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4871111A true JPS4871111A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-09-26 |
| JPS537090B2 JPS537090B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-03-14 |
Family
ID=5828594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12706372A Expired JPS537090B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-12-20 | 1972-12-18 |
Country Status (11)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50147223A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-05-15 | 1975-11-26 | ||
| JPH0553336U (ja) * | 1991-12-10 | 1993-07-13 | 株式会社オーディオテクニカ | トークバックシステムにおける相互伝送装置 |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4184054A (en) * | 1977-03-28 | 1980-01-15 | Tokyo Shibaura Electric Co., Ltd. | Key telephone system |
| US4173714A (en) * | 1977-06-03 | 1979-11-06 | Tie/Communications, Inc. | Communication circuit with combined power feed and data transmission over a phantom channel |
| CA1213649A (en) * | 1982-12-22 | 1986-11-04 | Hugh M. Goldberg | Secondary channel method and apparatus |
| US4716585A (en) * | 1985-04-05 | 1987-12-29 | Datapoint Corporation | Gain switched audio conferencing network |
| US4686698A (en) * | 1985-04-08 | 1987-08-11 | Datapoint Corporation | Workstation for interfacing with a video conferencing network |
| US4710917A (en) * | 1985-04-08 | 1987-12-01 | Datapoint Corporation | Video conferencing network |
| US5014267A (en) * | 1989-04-06 | 1991-05-07 | Datapoint Corporation | Video conferencing network |
| JPH02142787U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1989-04-28 | 1990-12-04 | ||
| US5084864A (en) * | 1990-05-14 | 1992-01-28 | The Boeing Company | Broadband, inductively coupled, duplex, rf transmission system |
| US6480510B1 (en) | 1998-07-28 | 2002-11-12 | Serconet Ltd. | Local area network of serial intelligent cells |
| US6956826B1 (en) | 1999-07-07 | 2005-10-18 | Serconet Ltd. | Local area network for distributing data communication, sensing and control signals |
| US6549616B1 (en) | 2000-03-20 | 2003-04-15 | Serconet Ltd. | Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets |
| US6961303B1 (en) * | 2000-09-21 | 2005-11-01 | Serconet Ltd. | Telephone communication system and method over local area network wiring |
| DE10205797A1 (de) * | 2002-02-13 | 2003-09-04 | Merten Gmbh & Co Kg | Lokales integriertes Daten- und Telefonnetz |
| WO2004107643A1 (de) * | 2003-05-28 | 2004-12-09 | Merten Gmbh & Co. Kg | Lokales integriertes daten- und telefonnetz mit phantomschaltungen |
| IL159838A0 (en) | 2004-01-13 | 2004-06-20 | Yehuda Binder | Information device |
| US20070070911A1 (en) * | 2005-09-29 | 2007-03-29 | Goldberg Keith J | Method for testing links in a wireless network |
| US7678147B2 (en) * | 2007-05-01 | 2010-03-16 | Moximed, Inc. | Extra-articular implantable mechanical energy absorbing systems and implantation method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1374221A (en) * | 1921-04-12 | Composite | ||
| US706318A (en) * | 1901-06-24 | 1902-08-05 | New England Telephone And Telegraph Company | Composite electric circuit. |
| BE420598A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1936-04-07 | 1900-01-01 | ||
| US2208417A (en) * | 1939-04-07 | 1940-07-16 | Bell Telephone Labor Inc | Transmission system |
| US2347505A (en) * | 1943-05-21 | 1944-04-25 | American Telephone & Telegraph | Phantom magneto telephone system |
-
0
- BE BE793053D patent/BE793053A/xx unknown
-
1971
- 1971-12-20 DE DE2163284A patent/DE2163284C2/de not_active Expired
-
1972
- 1972-11-20 AT AT985372A patent/AT327997B/de not_active IP Right Cessation
- 1972-11-23 CH CH1708572A patent/CH549916A/xx not_active IP Right Cessation
- 1972-12-13 GB GB5757072A patent/GB1402160A/en not_active Expired
- 1972-12-14 FR FR7244520A patent/FR2165537A5/fr not_active Expired
- 1972-12-15 NL NL7217113A patent/NL7217113A/xx not_active Application Discontinuation
- 1972-12-15 IT IT32956/72A patent/IT971906B/it active
- 1972-12-18 LU LU66688A patent/LU66688A1/xx unknown
- 1972-12-18 JP JP12706372A patent/JPS537090B2/ja not_active Expired
-
1975
- 1975-02-10 US US05/548,671 patent/US3975594A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50147223A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-05-15 | 1975-11-26 | ||
| JPH0553336U (ja) * | 1991-12-10 | 1993-07-13 | 株式会社オーディオテクニカ | トークバックシステムにおける相互伝送装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| AT327997B (de) | 1976-02-25 |
| IT971906B (it) | 1974-05-10 |
| NL7217113A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-06-22 |
| BE793053A (fr) | 1973-06-20 |
| DE2163284C2 (de) | 1974-01-03 |
| GB1402160A (en) | 1975-08-06 |
| CH549916A (de) | 1974-05-31 |
| US3975594A (en) | 1976-08-17 |
| FR2165537A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-08-03 |
| JPS537090B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-03-14 |
| LU66688A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-02-19 |
| DE2163284B1 (de) | 1973-06-14 |