FR769401A - Echo suppressor for electrical circuits - Google Patents

Echo suppressor for electrical circuits

Info

Publication number: FR769401A
Authority: FR; France
Prior art keywords: electrical circuits; echo suppressor; suppressor; echo; circuits
Prior art date: 1933-03-01
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.): Expired

Application number

Other languages

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.)

General Electric Company PLC

Original Assignee

General Electric Company PLC

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.)

1933-03-01

Filing date

1934-02-27

Publication date

1934-08-25

1934-02-27 Application filed by General Electric Company PLC filed Critical General Electric Company PLC

1934-08-25 Application granted granted Critical

1934-08-25 Publication of FR769401A publication Critical patent/FR769401A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

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

FR769401D 1933-03-01 1934-02-27 Echo suppressor for electrical circuits Expired FR769401A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB6227/33A GB415767A (en)	1933-03-01	1933-03-01	Improvements in alternating current transmission systems such as telephone systems incorporating echo suppressors

Publications (1)

Publication Number	Publication Date
FR769401A true FR769401A (en)	1934-08-25

Family

ID=9810720

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR769401D Expired FR769401A (en)	1933-03-01	1934-02-27	Echo suppressor for electrical circuits

Country Status (6)

Country	Link
US (1)	US1992774A (en)
BE (1)	BE401674A (en)
DE (1)	DE672795C (en)
FR (1)	FR769401A (en)
GB (2)	GB416372A (en)
NL (1)	NL39810C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE882420C (en) *	1938-04-12	1953-07-09	Siemens Ag	Circuit arrangement for feedback locks in loudspeaker systems
US2164344A (en) *	1938-04-28	1939-07-04	Bell Telephone Labor Inc	Signal transmission system
GB561405A (en) *	1942-11-14	1944-05-18	Automatic Telephone & Elect	Improvements in or relating to telecommunication systems
US2511468A (en) *	1945-01-15	1950-06-13	Telephone Mfg Co Ltd	Electrical control network
DE842503C (en) *	1948-12-09	1952-06-26	Rudolf Wagner	Circuit arrangement for controlling the transmission rate of telecommunication systems
DE849572C (en) *	1948-12-09	1952-09-15	Rudolf Wagner	Circuit arrangement for controlling the transmission rate of telecommunication systems
US2949579A (en) *	1957-12-27	1960-08-16	Mc Graw Edison Co	Transistor amplifier with a.v.c.

0
- BE BE401674D patent/BE401674A/xx unknown
- NL NL39810D patent/NL39810C/xx active
1933
- 1933-03-01 GB GB24310/34A patent/GB416372A/en not_active Expired
- 1933-03-01 GB GB6227/33A patent/GB415767A/en not_active Expired
1934
- 1934-02-19 US US711922A patent/US1992774A/en not_active Expired - Lifetime
- 1934-02-25 DE DEG87523D patent/DE672795C/en not_active Expired
- 1934-02-27 FR FR769401D patent/FR769401A/en not_active Expired

Also Published As

Publication number	Publication date
US1992774A (en)	1935-02-26
NL39810C (en)
DE672795C (en)	1939-03-10
BE401674A (en)
GB415767A (en)	1934-09-03
GB416372A (en)	1934-09-03

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