GB476273A - Improvements in or relating to communication systems - Google Patents

Improvements in or relating to communication systems

Info

Publication number: GB476273A
Authority: GB; United Kingdom
Prior art keywords: relays; segment; distributer; over; relay
Prior art date: 1935-12-14
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

GB32936/36A

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.)

International Business Machines Corp

Original Assignee

International Business Machines Corp

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.)

1935-12-14

Filing date

1936-12-01

Publication date

1937-12-06

1936-12-01 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1937-12-06 Publication of GB476273A publication Critical patent/GB476273A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/42—Transmitting circuits; Receiving circuits using mechanical distributors
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4902—Pulse width modulation; Pulse position modulation

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
Electrotherapy Devices (AREA)
Inking, Control Or Cleaning Of Printing Machines (AREA)

GB32936/36A 1935-12-14 1936-12-01 Improvements in or relating to communication systems Expired GB476273A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US54390A US2174691A (en)	1935-12-14	1935-12-14	Communication system

Publications (1)

Publication Number	Publication Date
GB476273A true GB476273A (en)	1937-12-06

Family

ID=21990730

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB32936/36A Expired GB476273A (en)	1935-12-14	1936-12-01	Improvements in or relating to communication systems

Country Status (4)

Country	Link
US (1)	US2174691A (de)
DE (1)	DE721998C (de)
FR (1)	FR823104A (de)
GB (1)	GB476273A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR902126A (fr) *	1943-06-11	1945-08-20		Appareil télégraphique rapide
US2523300A (en) *	1946-08-17	1950-09-26	Standard Telephones Cables Ltd	Printer telegraph circuit

1935
- 1935-12-14 US US54390A patent/US2174691A/en not_active Expired - Lifetime
1936
- 1936-12-01 GB GB32936/36A patent/GB476273A/en not_active Expired
- 1936-12-12 FR FR823104D patent/FR823104A/fr not_active Expired
- 1936-12-13 DE DED74132D patent/DE721998C/de not_active Expired

Also Published As

Publication number	Publication date
FR823104A (fr)	1938-01-14
DE721998C (de)	1942-06-26
US2174691A (en)	1939-10-03

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