BE846549A - CARRIER FREQUENCY SYSTEM IN A TWO CARRIER DUPLEX - Google Patents

CARRIER FREQUENCY SYSTEM IN A TWO CARRIER DUPLEX

Info

Publication number: BE846549A
Authority: BE; Belgium
Prior art keywords: carrier; duplex; frequency system; carrier frequency; carrier duplex
Prior art date: 1975-09-30

Application number

BE170902A

Other languages

French (fr)

Inventor

H Krahmer

S Friedrich

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.)

1975-09-30

Filing date

1976-09-24

Publication date

1977-01-17

1976-09-24 Application filed filed Critical

1977-01-17 Publication of BE846549A publication Critical patent/BE846549A/en

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Physics & Mathematics (AREA)
Electromagnetism (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

BE170902A 1975-09-30 1976-09-24 CARRIER FREQUENCY SYSTEM IN A TWO CARRIER DUPLEX BE846549A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2543492A DE2543492C3 (en)	1975-09-30	1975-09-30	Carrier frequency system in two-wire separation

Publications (1)

Publication Number	Publication Date
BE846549A true BE846549A (en)	1977-01-17

Family

ID=5957788

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE170902A BE846549A (en)	1975-09-30	1976-09-24	CARRIER FREQUENCY SYSTEM IN A TWO CARRIER DUPLEX

Country Status (9)

Country	Link
AT (1)	AT356181B (en)
AU (1)	AU503654B2 (en)
BE (1)	BE846549A (en)
CH (1)	CH610163A5 (en)
DE (1)	DE2543492C3 (en)
IT (1)	IT1076944B (en)
LU (1)	LU75906A1 (en)
NL (1)	NL7608600A (en)
ZA (1)	ZA765273B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2718232C3 (en) *	1977-04-23	1981-03-19	TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg	Carrier frequency system in two-wire separation
CA1159972A (en) *	1980-05-15	1984-01-03	Zdzistaw A. A. Krajewski	2-wire frequency division multiplex system
DE4014132A1 (en) *	1990-05-02	1991-11-14	Fraunhofer Ges Forschung	VOICE TRANSFER SYSTEM

1975
- 1975-09-30 DE DE2543492A patent/DE2543492C3/en not_active Expired
1976
- 1976-07-16 CH CH917076A patent/CH610163A5/en not_active IP Right Cessation
- 1976-08-02 NL NL7608600A patent/NL7608600A/en not_active Application Discontinuation
- 1976-08-26 IT IT26562/76A patent/IT1076944B/en active
- 1976-09-02 ZA ZA00765273A patent/ZA765273B/en unknown
- 1976-09-17 AU AU17884/76A patent/AU503654B2/en not_active Expired
- 1976-09-24 BE BE170902A patent/BE846549A/en not_active IP Right Cessation
- 1976-09-27 AT AT714576A patent/AT356181B/en active
- 1976-09-29 LU LU75906A patent/LU75906A1/xx unknown

Also Published As

Publication number	Publication date
ATA714576A (en)	1979-09-15
ZA765273B (en)	1978-01-25
DE2543492A1 (en)	1977-03-31
DE2543492C3 (en)	1980-09-25
AU1788476A (en)	1978-03-23
LU75906A1 (en)	1977-05-11
CH610163A5 (en)	1979-03-30
NL7608600A (en)	1977-04-01
AU503654B2 (en)	1979-09-13
IT1076944B (en)	1985-04-27
DE2543492B2 (en)	1977-09-22
AT356181B (en)	1980-04-10

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Legal Events

Date

Code

Title

Description

1986-03-31

RE

Patent lapsed

Owner name: TE KA DE FELTEN & GUILLEAUME FERNMELDEANLAGEN G.M

Effective date: 19850930