BE839076A - Dispositif de telecommunications - Google Patents

Dispositif de telecommunications

Info

Publication number: BE839076A
Authority: BE; Belgium
Prior art keywords: telecommunications device; telecommunications
Prior art date: 1975-03-07

Application number

BE164762A

Other languages

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.)

1975-03-07

Filing date

1976-03-01

Publication date

1976-09-01

1976-03-01 Application filed filed Critical

1976-09-01 Publication of BE839076A publication Critical patent/BE839076A/fr

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Near-Field Transmission Systems (AREA)
Radio Relay Systems (AREA)
Mobile Radio Communication Systems (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

BE164762A 1975-03-07 1976-03-01 Dispositif de telecommunications BE839076A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB9567/75A GB1497288A (en)	1975-03-07	1975-03-07	Telecommunication system

Publications (1)

Publication Number	Publication Date
BE839076A true BE839076A (fr)	1976-09-01

Family

ID=9874482

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE164762A BE839076A (fr)	1975-03-07	1976-03-01	Dispositif de telecommunications

Country Status (7)

Country	Link
US (1)	US4012662A (fr)
BE (1)	BE839076A (fr)
CA (1)	CA1066777A (fr)
DE (1)	DE2604907A1 (fr)
FR (1)	FR2303428A1 (fr)
GB (1)	GB1497288A (fr)
ZA (1)	ZA76631B (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4066993A (en) *	1976-11-08	1978-01-03	Western Geophysical Company Of America	Limited-range seismic control system
CH615545A5 (en) *	1977-05-20	1980-01-31	Patelhold Patentverwertung	Tunnel radio system
DE2729719C2 (de) *	1977-07-01	1985-11-21	kabelmetal electro GmbH, 3000 Hannover	Vorrichtung zur Übertragung von Hochfrequenz-Signalen
GB8408323D0 (en) *	1984-03-30	1984-05-10	British Telecomm	Cordless telephone
GB2171576B (en) *	1985-02-04	1989-07-12	Mitel Telecom Ltd	Spread spectrum leaky feeder communication system
GB8915542D0 (en) *	1989-07-06	1989-08-23	Hunting Eng Ltd	Communication systems
CA2033763C (fr) *	1990-01-18	1994-11-01	Timothy Burke	Systeme de gestion de reseau a amplificateurs repartis
FR2659512B1 (fr) *	1990-03-09	1994-04-29	Cogema	Installation de communication en hyperfrequences.
US5018165A (en) *	1990-03-21	1991-05-21	Andrew Corporation	Communication system using spread spectrum and leaky transmission line
CA2043127C (fr) *	1991-05-23	1996-05-07	Martin Handforth	Systeme de gestion de zones de communication sans fil
US5697067A (en) *	1994-09-15	1997-12-09	Mine Radio Systems Inc.	Communication system utilizing radiating transmission line
US5669065A (en) *	1994-09-15	1997-09-16	Mine Radio Systems Inc.	Completely redundant communication system utilizing radiating transmission line
US5924033A (en) *	1996-05-03	1999-07-13	Telefonaktiebolaget L/M Ericsson (Publ)	Communication control circuitry and method for a group of commonly-moving mobile transceiver units
US6081728A (en) *	1997-02-28	2000-06-27	Andrew Corporation	Strip-type radiating cable for a radio communication system
DE19732503A1 (de)	1997-07-29	1999-02-04	Alsthom Cge Alcatel	Anordnung zur Übertragung, zur Abstrahlung und zum Empfang von Hochfrequenz-Signalen
JP4436388B2 (ja) *	2007-07-13	2010-03-24	東芝テック株式会社	無線通信システム
US8725188B1 (en)	2007-07-20	2014-05-13	Kutta Technologies, Inc.	Enclosed space communication systems and related methods
JP4913186B2 (ja) *	2009-08-13	2012-04-11	東芝テック株式会社	無線通信システム及びその設置方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE449733A (fr) *	1942-06-06
GB1206811A (en) *	1968-01-15	1970-09-30	British Railways Board	Improvements relating to track communication systems for moving trains
CA853332A (en) *	1968-02-21	1970-10-06	Jauquet Christian	Device for transmitting information between a fixed location and a railway vehicle
GB1240588A (en) *	1968-07-30	1971-07-28	Japan National Railway	Improvements in or relating to communication control systems
GB1389554A (en) *	1972-05-26	1975-04-03	Coal Industry Patents Ltd	Radiating line transmission system
GB1485156A (en) *	1974-08-07	1977-09-08	Coal Ind	Radiating line telecommunication systems

1975
- 1975-03-07 GB GB9567/75A patent/GB1497288A/en not_active Expired
1976
- 1976-02-03 ZA ZA631A patent/ZA76631B/xx unknown
- 1976-02-04 CA CA245,042A patent/CA1066777A/fr not_active Expired
- 1976-02-07 DE DE19762604907 patent/DE2604907A1/de not_active Withdrawn
- 1976-02-13 US US05/657,879 patent/US4012662A/en not_active Expired - Lifetime
- 1976-03-01 BE BE164762A patent/BE839076A/fr not_active IP Right Cessation
- 1976-03-02 FR FR7605914A patent/FR2303428A1/fr active Granted

Also Published As

Publication number	Publication date
FR2303428A1 (fr)	1976-10-01
CA1066777A (fr)	1979-11-20
GB1497288A (en)	1978-01-05
US4012662A (en)	1977-03-15
ZA76631B (en)	1977-01-26
AU1148376A (en)	1977-09-01
FR2303428B1 (fr)	1980-04-25
DE2604907A1 (de)	1976-09-16

Legal Events

Date

Code

Title

Description

1986-09-30

RE

Patent lapsed

Owner name: COAL INDUSTRY (PATENTS) LTD

Effective date: 19860331

Publication	Publication Date	Title
FR2301851A1 (fr)	1976-09-17	Dispositif de traitem
FR2301416A1 (fr)	1976-09-17	Dispositif d
BE843655A (fr)	1976-12-30	Dispositif de jonction
FR2333266A1 (fr)	1977-06-24	Dispositif electro-optique
FR2331451A1 (fr)	1977-06-10	Dispositif graphique
FR2334870A1 (fr)	1977-07-08	Dispositif de raccordement
BE872107A (fr)	1979-03-16	Dispositif prehenseur
BE839076A (fr)	1976-09-01	Dispositif de telecommunications
FR2315975A1 (fr)	1977-01-28	Dispositif de filtration
FR2326207A1 (fr)	1977-04-29	Dispositif de drainage
FR2302555A1 (fr)	1976-09-24	Dispositif de
FR2300419A1 (fr)	1976-09-03	Dispositif semi-cond
FR2298682A1 (fr)	1976-08-20	Dispositif po
FR2301417A1 (fr)	1976-09-17	Dispositif an
FR2305784A1 (fr)	1976-10-22	Dispositif de multiplication
FR2329412A1 (fr)	1977-05-27	Dispositif de retenue
FR2309080A1 (fr)	1976-11-19	Dispositif de multiplexage
FR2300253A1 (fr)	1976-09-03	Dispositif
FR2307994A1 (fr)	1976-11-12	Dispositif de pompage
FR2325599A1 (fr)	1977-04-22	Dispositif de levage
FR2306075A1 (fr)	1976-10-29	Dispositif de pliage
FR2335820A1 (fr)	1977-07-15	Dispositif pyrotechnique
FR2307090A1 (fr)	1976-11-05	Dispositif de construction
FR2334880A1 (fr)	1977-07-08	Dispositif de debrayage
BE849136A (fr)	1977-06-07	Dispositif de recurage