US2229108A - Switching of spare repeater sections - Google Patents

Switching of spare repeater sections Download PDF

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Publication number
US2229108A
US2229108A US296892A US29689239A US2229108A US 2229108 A US2229108 A US 2229108A US 296892 A US296892 A US 296892A US 29689239 A US29689239 A US 29689239A US 2229108 A US2229108 A US 2229108A
Authority
US
United States
Prior art keywords
section
circuit
spare
switching
circuits
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 - Lifetime
Application number
US296892A
Other languages
English (en)
Inventor
John B Maggio
Earl K Van Tassel
Ira G Wilson
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.)
AT&T Corp
Original Assignee
Bell Telephone Laboratories Inc
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 Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US296892A priority Critical patent/US2229108A/en
Priority to US296890A priority patent/US2229089A/en
Priority to US296893A priority patent/US2229158A/en
Priority to US296891A priority patent/US2229090A/en
Priority to GB11628/40A priority patent/GB543841A/en
Priority to FR869045D priority patent/FR869045A/fr
Application granted granted Critical
Publication of US2229108A publication Critical patent/US2229108A/en
Priority to BE441443D priority patent/BE441443A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/16—Monitoring arrangements

Definitions

  • One object of this invention is to make such substitution of a defective circuit by the reserve or spare circuit in as short an interval of time as possible. Another object is to providel interlock means such that if a reserve or spare circuit is in use, no other circuit can take it over. Still a further object is to provide means whereby when the circuit which has been replaced is restored to normal operating condition, the spare circuit will be automatically switched out. Other objects will appear in connection with the description of our invention.
  • Fig. l shows the system in the normal condition. All transmission paths are carried straight through. Let us assume a transmission failure of system 3 in cable section B. Failure of the pilot channel at the output of section B operates the primary switch at station C and the secondary switch at station B associated with system 3, all in a manner which will be more fully described hereinafter. By a direct current interlock relay system the spare pilot channel oscillator at station B is removed from the input of the spa-re section at the same time. The transmission of system 3 is now carried on the spare system in cable section B.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)
  • Radio Relay Systems (AREA)
US296892A 1939-09-28 1939-09-28 Switching of spare repeater sections Expired - Lifetime US2229108A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US296892A US2229108A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
US296890A US2229089A (en) 1939-09-28 1939-09-28 Switching of spare channel
US296893A US2229158A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
US296891A US2229090A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
GB11628/40A GB543841A (en) 1939-09-28 1940-07-12 Improvements relating to electrical communication systems
FR869045D FR869045A (fr) 1939-09-28 1941-01-07 Systèmes de transmission à large bande
BE441443D BE441443A (enrdf_load_html_response) 1939-09-28 1941-05-14

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US296892A US2229108A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
US296890A US2229089A (en) 1939-09-28 1939-09-28 Switching of spare channel
US296893A US2229158A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
US296891A US2229090A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections

Publications (1)

Publication Number Publication Date
US2229108A true US2229108A (en) 1941-01-21

Family

ID=42710534

Family Applications (4)

Application Number Title Priority Date Filing Date
US296891A Expired - Lifetime US2229090A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
US296892A Expired - Lifetime US2229108A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
US296893A Expired - Lifetime US2229158A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
US296890A Expired - Lifetime US2229089A (en) 1939-09-28 1939-09-28 Switching of spare channel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US296891A Expired - Lifetime US2229090A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections

Family Applications After (2)

Application Number Title Priority Date Filing Date
US296893A Expired - Lifetime US2229158A (en) 1939-09-28 1939-09-28 Switching of spare repeater sections
US296890A Expired - Lifetime US2229089A (en) 1939-09-28 1939-09-28 Switching of spare channel

Country Status (4)

Country Link
US (4) US2229090A (enrdf_load_html_response)
BE (1) BE441443A (enrdf_load_html_response)
FR (1) FR869045A (enrdf_load_html_response)
GB (1) GB543841A (enrdf_load_html_response)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478395A (en) * 1943-03-05 1949-08-09 Automatic Elect Lab Automatic by-pass for repeaters
US2552787A (en) * 1946-11-23 1951-05-15 Automatic Elect Lab Channel switching in voice current repeater stations
US2592716A (en) * 1949-03-25 1952-04-15 Bell Telephone Labor Inc Self-correcting amplifier
DE954796C (de) * 1954-09-25 1956-12-20 Siemens Ag UEbertragungsanlage mit Breitbandkabel mit koaxialen Leitern
US2802990A (en) * 1953-08-04 1957-08-13 Ericsson Telefon Ab L M Switching system in multiple line multiplex transmission system
US3009133A (en) * 1956-06-25 1961-11-14 Westinghouse Air Brake Co Automatic changeover for carrier circuits
US3111624A (en) * 1960-01-04 1963-11-19 Bell Telephone Labor Inc Automatic system for selectively substituting spare channels for failed working channels in a multichannel multilink communication system
US3135946A (en) * 1960-07-29 1964-06-02 Ibm Error correction device
US3152320A (en) * 1960-02-10 1964-10-06 Ibm Self repairing electrical signaltranslating system
US3202941A (en) * 1960-12-23 1965-08-24 Bell Telephone Labor Inc High frequency channel switching unit, employing electromechanical contact means
US3451042A (en) * 1964-10-14 1969-06-17 Westinghouse Electric Corp Redundant signal transmission system
US3519945A (en) * 1967-09-05 1970-07-07 Bell Telephone Labor Inc System for replacing all or part of a faulty amplifier
US4565972A (en) * 1985-03-18 1986-01-21 Tx Rx Systems, Inc. Tower mounted preamplifier
US5418490A (en) * 1994-03-01 1995-05-23 Tx Rx Systems, Inc. Failure responsive alternate amplifier and bypass system for communications amplifier

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653966A (en) * 1948-07-13 1951-05-30 Standard Telephones Cables Ltd Improvements in or relating to the automatic replacement of defectiye repeating or receiving equipment in high frequency electric communication systems
US2773944A (en) * 1950-08-08 1956-12-11 Bendix Aviat Corp Amplifying system with stand-by channel
US2625613A (en) * 1950-10-04 1953-01-13 Maico Company Inc Tone interrupter for audiometers
US2686256A (en) * 1951-02-06 1954-08-10 Bell Telephone Labor Inc Signal transmission system
US2663010A (en) * 1952-02-01 1953-12-15 Itt Switching system
NL88027C (enrdf_load_html_response) * 1953-03-28
US3170071A (en) * 1960-03-30 1965-02-16 Ibm Error correction device utilizing spare substitution
US3138781A (en) * 1960-12-21 1964-06-23 Westinghouse Brake & Signal Electronic drive circuits for remote control systems
US3248693A (en) * 1961-09-25 1966-04-26 Bell Telephone Labor Inc Data transmission system for operation in signal environment with a high noise level
US3204204A (en) * 1962-09-26 1965-08-31 Automatic Elect Lab Fast-switching arrangement for the transfer of communication channels
NL6408627A (nl) * 1964-07-29 1966-01-31 Philips Nv Transmissie-inrichting
US3319088A (en) * 1964-11-25 1967-05-09 John B Payne Selective delay device
NL6507233A (enrdf_load_html_response) * 1965-06-05 1966-12-06
US3403357A (en) * 1966-04-14 1968-09-24 Hughes Aircraft Co Switching apparatus for selectively coupling a predetermined number of microwave devices between an input and an output port
US3868584A (en) * 1971-02-08 1975-02-25 Henry Richard Beurrier Amplifier with input and output match
US4264894A (en) * 1979-06-18 1981-04-28 Ellington Stephen P Fault bypass for data transmission system
FR2511772A1 (fr) * 1981-08-24 1983-02-25 Inst Francais Du Petrole Dispositif de transmission sequentielle de signaux par radio ou par cable, entre un systeme central de commande et des appareils d'acquisition de donnees

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478395A (en) * 1943-03-05 1949-08-09 Automatic Elect Lab Automatic by-pass for repeaters
US2552787A (en) * 1946-11-23 1951-05-15 Automatic Elect Lab Channel switching in voice current repeater stations
US2592716A (en) * 1949-03-25 1952-04-15 Bell Telephone Labor Inc Self-correcting amplifier
US2802990A (en) * 1953-08-04 1957-08-13 Ericsson Telefon Ab L M Switching system in multiple line multiplex transmission system
DE954796C (de) * 1954-09-25 1956-12-20 Siemens Ag UEbertragungsanlage mit Breitbandkabel mit koaxialen Leitern
US3009133A (en) * 1956-06-25 1961-11-14 Westinghouse Air Brake Co Automatic changeover for carrier circuits
US3111624A (en) * 1960-01-04 1963-11-19 Bell Telephone Labor Inc Automatic system for selectively substituting spare channels for failed working channels in a multichannel multilink communication system
US3152320A (en) * 1960-02-10 1964-10-06 Ibm Self repairing electrical signaltranslating system
US3135946A (en) * 1960-07-29 1964-06-02 Ibm Error correction device
US3202941A (en) * 1960-12-23 1965-08-24 Bell Telephone Labor Inc High frequency channel switching unit, employing electromechanical contact means
US3451042A (en) * 1964-10-14 1969-06-17 Westinghouse Electric Corp Redundant signal transmission system
US3519945A (en) * 1967-09-05 1970-07-07 Bell Telephone Labor Inc System for replacing all or part of a faulty amplifier
US4565972A (en) * 1985-03-18 1986-01-21 Tx Rx Systems, Inc. Tower mounted preamplifier
US5418490A (en) * 1994-03-01 1995-05-23 Tx Rx Systems, Inc. Failure responsive alternate amplifier and bypass system for communications amplifier

Also Published As

Publication number Publication date
BE441443A (enrdf_load_html_response) 1941-11-29
US2229158A (en) 1941-01-21
FR869045A (fr) 1942-01-22
US2229089A (en) 1941-01-21
GB543841A (en) 1942-03-16
US2229090A (en) 1941-01-21

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