US2585904A - Crossbar telephone system - Google Patents

Crossbar telephone system Download PDF

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Publication number
US2585904A
US2585904A US57394A US5739448A US2585904A US 2585904 A US2585904 A US 2585904A US 57394 A US57394 A US 57394A US 5739448 A US5739448 A US 5739448A US 2585904 A US2585904 A US 2585904A
Authority
US
United States
Prior art keywords
telephone system
crossbar telephone
crossbar
telephone
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
US57394A
Inventor
Aloysius J Busch
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 US57394A priority Critical patent/US2585904A/en
Application granted granted Critical
Publication of US2585904A publication Critical patent/US2585904A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
US57394A 1948-10-29 1948-10-29 Crossbar telephone system Expired - Lifetime US2585904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US57394A US2585904A (en) 1948-10-29 1948-10-29 Crossbar telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57394A US2585904A (en) 1948-10-29 1948-10-29 Crossbar telephone system

Publications (1)

Publication Number Publication Date
US2585904A true US2585904A (en) 1952-02-19

Family

ID=22010318

Family Applications (1)

Application Number Title Priority Date Filing Date
US57394A Expired - Lifetime US2585904A (en) 1948-10-29 1948-10-29 Crossbar telephone system

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US (1) US2585904A (en)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679552A (en) * 1949-05-06 1954-05-25 Ericsson Telefon Ab L M Cross-bar switch system with several markers
US2686838A (en) * 1950-04-06 1954-08-17 Bell Telephone Labor Inc Translator
US2735894A (en) * 1951-04-11 1956-02-21 gohorel
US2806088A (en) * 1953-12-03 1957-09-10 Bell Telephone Labor Inc Communication system
US2853552A (en) * 1953-05-23 1958-09-23 Nederlanden Staat Trunking diagram for an automatic telecommunication system
US2872527A (en) * 1954-10-05 1959-02-03 Int Standard Electric Corp Automatic telecommunication exchanges
US2873322A (en) * 1953-12-30 1959-02-10 Vigren Sten Daniel Automatic service control system with fault recording
US2876286A (en) * 1953-09-10 1959-03-03 Roelof M M Oberman Arrangement for the identification of special service apparatus required for connections in a telecommunication system
US2918533A (en) * 1956-12-19 1959-12-22 Itt Register-translator crossbar telephone system
US2955165A (en) * 1957-10-07 1960-10-04 Bell Telephone Labor Inc Electronic telephone switching system
US3007006A (en) * 1956-01-27 1961-10-31 North Electric Co Automatic telephone system
US3007008A (en) * 1955-07-15 1961-10-31 North Electric Co Automatic telephone system
US3008010A (en) * 1954-12-22 1961-11-07 Int Standard Electric Corp Telephone systems
US3036160A (en) * 1958-08-18 1962-05-22 Itt Telephone connector system using controlling crossbar switch
US3120581A (en) * 1956-11-19 1964-02-04 Bell Telephone Labor Inc Electronic automatic telephone switching system
US3127480A (en) * 1960-09-09 1964-03-31 Ericsson Telefon Ab L M Automatic telephone system
US3175043A (en) * 1957-09-26 1965-03-23 Siemens And Halske Ag Berlin A Coupling field selection system
DE1202348B (en) * 1963-02-23 1965-10-07 Standard Elektrik Lorenz Ag Method for testing the connection wires in telecommunications switching systems, in particular telephone dialing systems
US3257513A (en) * 1963-01-22 1966-06-21 Bell Telephone Labor Inc Communications switching network
US3378650A (en) * 1964-10-15 1968-04-16 Bell Telephone Labor Inc Communication system signaling and testing equipment
DE1274199B (en) * 1962-03-06 1968-08-01 Western Electric Co Circuit arrangement for the automatic monitoring of the connection setup in a telephone switching system with several switching offices connected to one another in series via long-distance lines
US3417206A (en) * 1963-02-08 1968-12-17 Hitachi Ltd Crossbar switching system providing an increased number of possible paths to a selected registered group
US3428947A (en) * 1965-03-31 1969-02-18 Bell Telephone Labor Inc Scanning circuit for scanning all of a group of points if one point has a change of state
US3505482A (en) * 1965-10-08 1970-04-07 Int Standard Electric Corp Automatic telecommunication switching system
US3519753A (en) * 1965-06-24 1970-07-07 Int Standard Electric Corp Arrangement for controlling crosspoints to complete connecting paths in telephone exchange systems
US3876885A (en) * 1974-04-18 1975-04-08 John Mason Catterall Preference lockout circuit for common control switching system
US3995117A (en) * 1976-01-22 1976-11-30 Western Electric Company, Inc. Message billing arrangement for a communication system
US4208553A (en) * 1978-11-22 1980-06-17 Bell Telephone Laboratories, Incorporated Telephone office assignment verification
US4415773A (en) * 1981-10-29 1983-11-15 Western Electric Company, Inc. Methods of establishing a switching connection within a switching system
US4744102A (en) * 1986-01-27 1988-05-10 Koster Frederick H Crossbar line hunting arrangement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392089A (en) * 1944-06-23 1946-01-01 Bell Telephone Labor Inc Switching system
US2413708A (en) * 1944-11-09 1947-01-07 Bell Telephone Labor Inc Telephone system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392089A (en) * 1944-06-23 1946-01-01 Bell Telephone Labor Inc Switching system
US2413708A (en) * 1944-11-09 1947-01-07 Bell Telephone Labor Inc Telephone system

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679552A (en) * 1949-05-06 1954-05-25 Ericsson Telefon Ab L M Cross-bar switch system with several markers
US2686838A (en) * 1950-04-06 1954-08-17 Bell Telephone Labor Inc Translator
US2761907A (en) * 1951-04-11 1956-09-04 Int Standard Electric Corp Automatic telephone systems
US2735894A (en) * 1951-04-11 1956-02-21 gohorel
US2853552A (en) * 1953-05-23 1958-09-23 Nederlanden Staat Trunking diagram for an automatic telecommunication system
US2876286A (en) * 1953-09-10 1959-03-03 Roelof M M Oberman Arrangement for the identification of special service apparatus required for connections in a telecommunication system
US2806088A (en) * 1953-12-03 1957-09-10 Bell Telephone Labor Inc Communication system
DE1098046B (en) * 1953-12-03 1961-01-26 Western Electric Co Circuit arrangement for telephone systems with main and sub-offices
US2873322A (en) * 1953-12-30 1959-02-10 Vigren Sten Daniel Automatic service control system with fault recording
US2872527A (en) * 1954-10-05 1959-02-03 Int Standard Electric Corp Automatic telecommunication exchanges
US3008010A (en) * 1954-12-22 1961-11-07 Int Standard Electric Corp Telephone systems
US3007008A (en) * 1955-07-15 1961-10-31 North Electric Co Automatic telephone system
US3007006A (en) * 1956-01-27 1961-10-31 North Electric Co Automatic telephone system
US3120581A (en) * 1956-11-19 1964-02-04 Bell Telephone Labor Inc Electronic automatic telephone switching system
US2918533A (en) * 1956-12-19 1959-12-22 Itt Register-translator crossbar telephone system
US3175043A (en) * 1957-09-26 1965-03-23 Siemens And Halske Ag Berlin A Coupling field selection system
US2955165A (en) * 1957-10-07 1960-10-04 Bell Telephone Labor Inc Electronic telephone switching system
US3036160A (en) * 1958-08-18 1962-05-22 Itt Telephone connector system using controlling crossbar switch
US3127480A (en) * 1960-09-09 1964-03-31 Ericsson Telefon Ab L M Automatic telephone system
DE1274199B (en) * 1962-03-06 1968-08-01 Western Electric Co Circuit arrangement for the automatic monitoring of the connection setup in a telephone switching system with several switching offices connected to one another in series via long-distance lines
US3257513A (en) * 1963-01-22 1966-06-21 Bell Telephone Labor Inc Communications switching network
US3417206A (en) * 1963-02-08 1968-12-17 Hitachi Ltd Crossbar switching system providing an increased number of possible paths to a selected registered group
DE1202348B (en) * 1963-02-23 1965-10-07 Standard Elektrik Lorenz Ag Method for testing the connection wires in telecommunications switching systems, in particular telephone dialing systems
US3378650A (en) * 1964-10-15 1968-04-16 Bell Telephone Labor Inc Communication system signaling and testing equipment
US3428947A (en) * 1965-03-31 1969-02-18 Bell Telephone Labor Inc Scanning circuit for scanning all of a group of points if one point has a change of state
US3519753A (en) * 1965-06-24 1970-07-07 Int Standard Electric Corp Arrangement for controlling crosspoints to complete connecting paths in telephone exchange systems
US3505482A (en) * 1965-10-08 1970-04-07 Int Standard Electric Corp Automatic telecommunication switching system
US3876885A (en) * 1974-04-18 1975-04-08 John Mason Catterall Preference lockout circuit for common control switching system
US3995117A (en) * 1976-01-22 1976-11-30 Western Electric Company, Inc. Message billing arrangement for a communication system
US4208553A (en) * 1978-11-22 1980-06-17 Bell Telephone Laboratories, Incorporated Telephone office assignment verification
US4415773A (en) * 1981-10-29 1983-11-15 Western Electric Company, Inc. Methods of establishing a switching connection within a switching system
US4744102A (en) * 1986-01-27 1988-05-10 Koster Frederick H Crossbar line hunting arrangement

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