NL7705061A - Spraak-frequentie-overdrager. - Google Patents

Spraak-frequentie-overdrager.

Info

Publication number: NL7705061A
Authority: NL; Netherlands
Prior art keywords: voice frequency; frequency transfer; transfer; voice; frequency
Prior art date: 1976-06-28

Application number

NL7705061A

Other languages

English (en)

Dutch (nl)

Original Assignee

Northern Telecom 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.)

1976-06-28

Filing date

1977-05-09

Publication date

1977-12-30

1977-05-09 Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd

1977-12-30 Publication of NL7705061A publication Critical patent/NL7705061A/xx

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Signal Processing (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Amplifiers (AREA)
Control Of Amplification And Gain Control (AREA)
Radio Relay Systems (AREA)

NL7705061A 1976-06-28 1977-05-09 Spraak-frequentie-overdrager. NL7705061A (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA255,888A CA1036736A (fr)	1976-06-28	1976-06-28	Repeteur a frequence vocale auto-reglable

Publications (1)

Publication Number	Publication Date
NL7705061A true NL7705061A (nl)	1977-12-30

Family

ID=4106308

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL7705061A NL7705061A (nl)	1976-06-28	1977-05-09	Spraak-frequentie-overdrager.

Country Status (8)

Country	Link
JP (1)	JPS532016A (fr)
CA (1)	CA1036736A (fr)
DE (1)	DE2721035A1 (fr)
ES (1)	ES460180A1 (fr)
FR (1)	FR2357123A1 (fr)
GB (1)	GB1531691A (fr)
NL (1)	NL7705061A (fr)
SE (1)	SE7707460L (fr)

1976
- 1976-06-28 CA CA255,888A patent/CA1036736A/fr not_active Expired
1977
- 1977-04-19 GB GB16198/77A patent/GB1531691A/en not_active Expired
- 1977-05-09 NL NL7705061A patent/NL7705061A/xx not_active Application Discontinuation
- 1977-05-10 DE DE19772721035 patent/DE2721035A1/de active Pending
- 1977-06-10 JP JP6803477A patent/JPS532016A/ja active Pending
- 1977-06-24 FR FR7719405A patent/FR2357123A1/fr not_active Withdrawn
- 1977-06-28 SE SE7707460A patent/SE7707460L/xx unknown
- 1977-06-28 ES ES460180A patent/ES460180A1/es not_active Expired

Also Published As

Publication number	Publication date
FR2357123A1 (fr)	1978-01-27
SE7707460L (sv)	1977-12-29
ES460180A1 (es)	1978-05-16
DE2721035A1 (de)	1978-01-12
GB1531691A (en)	1978-11-08
CA1036736A (fr)	1978-08-15
JPS532016A (en)	1978-01-10

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NL188880C (nl)	1992-10-16	Luidspreker.
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ES219730Y (es)	1977-02-01	Microfono.
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Legal Events

Date	Code	Title	Description
1980-01-25	BV	The patent application has lapsed