GB829348A - Improvements in or relating to substitution arrangements for stand-by equipment in signal transmission systems - Google Patents

Improvements in or relating to substitution arrangements for stand-by equipment in signal transmission systems

Info

Publication number
GB829348A
GB829348A GB897757A GB897757A GB829348A GB 829348 A GB829348 A GB 829348A GB 897757 A GB897757 A GB 897757A GB 897757 A GB897757 A GB 897757A GB 829348 A GB829348 A GB 829348A
Authority
GB
United Kingdom
Prior art keywords
relay
relays
switching
operated
time
Prior art date
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
GB897757A
Other languages
English (en)
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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.)
Filing date
Publication date
Application filed by Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB829348A publication Critical patent/GB829348A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
    • H03F1/542—Replacing by standby devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Selective Calling Equipment (AREA)
GB897757A 1956-03-22 1957-03-19 Improvements in or relating to substitution arrangements for stand-by equipment in signal transmission systems Expired GB829348A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL348726X 1956-03-22

Publications (1)

Publication Number Publication Date
GB829348A true GB829348A (en) 1960-03-02

Family

ID=19784976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB897757A Expired GB829348A (en) 1956-03-22 1957-03-19 Improvements in or relating to substitution arrangements for stand-by equipment in signal transmission systems

Country Status (6)

Country Link
US (1) US2885567A (forum.php)
CH (1) CH348726A (forum.php)
DE (1) DE1113248B (forum.php)
FR (1) FR1169850A (forum.php)
GB (1) GB829348A (forum.php)
NL (2) NL97476C (forum.php)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1068216A (en) * 1964-11-13 1967-05-10 Gen Electric Co Ltd Improvements in or relating to electrical switching apparatus
DE1264515B (de) * 1965-12-16 1968-03-28 Fernmeldewerk Leipzig Veb Verfahren zur unterbrechungsfreien Umschaltung von Betriebsgeraeten auf gleichartigeErsatzgeraete der Nachrichtentechnik, insbesondere der Traegerfrequenztechnik
DE1299730B (de) * 1966-02-03 1969-07-24 Siemens Ag Einrichtung zur Umschaltung von Betriebsgeneratoren auf Ersatzgeneratoren bei Nachrichtenanlagen
KR100379734B1 (ko) * 2000-12-15 2003-04-11 메딕스얼라인 주식회사 장중첩 치료장치

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE425740A (forum.php) * 1937-01-13
DE726816C (de) * 1935-08-24 1942-10-21 Philips Patentverwaltung Einrichtung zur UEbertragung von Rufsignalen in Traegerfrequenztelephonie-Anlagen
FR822799A (fr) * 1936-06-26 1938-01-07 Materiel Telephonique Systèmes de transmission à onde porteuse
US2128230A (en) * 1937-09-02 1938-08-30 Bell Telephone Labor Inc Power transfer circuit
DE692528C (de) * 1938-08-16 1940-06-21 Aeg Anordnung zweier ausgangsseitig parallel geschalteter Traegerstromgeneratoren fuer Mehrfachuebertragungssysteme
NL58996C (forum.php) * 1939-09-14
US2410678A (en) * 1945-08-21 1946-11-05 Wilcolator Co Control inverter change-over system
NL77626C (forum.php) * 1947-01-24 1900-01-01
GB744401A (en) * 1951-04-09 1956-02-08 Standard Telephones Cables Ltd Improvements in or relating to electric power supply systems
US2663010A (en) * 1952-02-01 1953-12-15 Itt Switching system

Also Published As

Publication number Publication date
NL97476C (forum.php) 1900-01-01
FR1169850A (fr) 1959-01-06
DE1113248B (de) 1961-08-31
CH348726A (de) 1960-09-15
US2885567A (en) 1959-05-05
NL205669A (forum.php) 1900-01-01

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