FR794930A - Improvements to electrical systems for transmission of messages between a number of stations - Google Patents

Improvements to electrical systems for transmission of messages between a number of stations

Info

Publication number: FR794930A
Authority: FR; France
Prior art keywords: stations; messages; transmission; electrical systems; systems
Prior art date: 1934-05-26
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.)

Thales SA

Original Assignee

Le Materiel Telephonique Thomson CSF

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.)

1934-05-26

Filing date

1935-05-23

Publication date

1936-02-28

1935-05-23 Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF

1936-02-28 Application granted granted Critical

1936-02-28 Publication of FR794930A publication Critical patent/FR794930A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Interface Circuits In Exchanges (AREA)
Mobile Radio Communication Systems (AREA)

FR794930D 1934-05-26 1935-05-23 Improvements to electrical systems for transmission of messages between a number of stations Expired FR794930A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US455279XA	1934-05-26	1934-05-26

Publications (1)

Publication Number	Publication Date
FR794930A true FR794930A (en)	1936-02-28

Family

ID=21938413

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
FR794930D Expired FR794930A (en)	1934-05-26	1935-05-23	Improvements to electrical systems for transmission of messages between a number of stations
FR46909D Expired FR46909E (en)	1934-05-26	1935-05-25	Improvements to electrical systems for transmission of messages between a number of stations

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
FR46909D Expired FR46909E (en)	1934-05-26	1935-05-25	Improvements to electrical systems for transmission of messages between a number of stations

Country Status (5)

Country	Link
BE (1)	BE409369A (en)
DE (1)	DE737864C (en)
FR (2)	FR794930A (en)
GB (1)	GB455279A (en)
NL (1)	NL49328C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2547001A (en) *	1944-01-26	1951-04-03	Standard Telephones Cables Ltd	Drop channel pulse multiplex system
DE970178C (en) *	1951-09-28	1958-08-28	Eugen Kessler	Automatic switching device for telecommunications systems
CN118488189B (en) *	2023-12-01	2024-10-08	泰安市广播电视台	Video communication method and system based on television broadcasting

1935
- 1935-04-12 GB GB11446/35A patent/GB455279A/en not_active Expired
- 1935-05-07 NL NL73468A patent/NL49328C/xx active
- 1935-05-09 BE BE409369D patent/BE409369A/xx unknown
- 1935-05-23 FR FR794930D patent/FR794930A/en not_active Expired
- 1935-05-25 FR FR46909D patent/FR46909E/en not_active Expired
- 1935-05-28 DE DEG90521D patent/DE737864C/en not_active Expired

Also Published As

Publication number	Publication date
FR46909E (en)	1936-11-07
BE409369A (en)	1935-06-29
DE737864C (en)	1943-07-27
NL49328C (en)	1940-10-15
GB455279A (en)	1936-10-12

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