US2244700A - Telephone system - Google Patents

Telephone system Download PDF

Info

Publication number
US2244700A
US2244700A US295889A US29588939A US2244700A US 2244700 A US2244700 A US 2244700A US 295889 A US295889 A US 295889A US 29588939 A US29588939 A US 29588939A US 2244700 A US2244700 A US 2244700A
Authority
US
United States
Prior art keywords
line
cross
point
potential
lines
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
US295889A
Other languages
English (en)
Inventor
Jr Arthur W Horton
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
Priority to BE441725D priority Critical patent/BE441725A/xx
Priority to NL67277D priority patent/NL67277C/xx
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US295889A priority patent/US2244700A/en
Application granted granted Critical
Publication of US2244700A publication Critical patent/US2244700A/en
Priority to FR902622D priority patent/FR902622A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/62—Switching arrangements with several input- output-terminals, e.g. multiplexers, distributors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/64—Arrangements for signalling the number or class of the calling line to the operator

Definitions

  • This invention relates to telephone systems and more particularly to those systems in which the numerical indication of a calling lineis am tomatically supplied.
  • This verificationV is accomplished by touching the tip of a so-called checking cord to a pin in the checking multiple that is individual to the given number, and ifthe number as given is correct, ⁇ a tone circuit is ⁇ completed over-the checking cord which is heard bytheV operator in her telephone set, thereby verifying the accuracy of the number.
  • the tone circuit isnot completed, which indicates to the operator that the number given by the subscriber does not correspond to that of the station from which he is calling and service, therefore, will be denied until the discrepancy is rectied.
  • the principal feature of my invention is a coordinate arrangement of rectiers to the crosspoints of each of which the identifying conductor of one of the several lines in the ollce is disposed for corresponding line number identification.
  • Each row and column to which thedifferent horizontal and vertical rectiers belong terminates in a relay connected to one terminus of a source of potential, and the application of the other terminus of this source of potential to the identifying conductor of any line causesthe operation of the vertical and horizontal relays defined by the cross-point to which said conductor is connected.
  • the operation of these two relays may then be utilized to control registers, lamps or other means for displaying or recording the number.
  • Fig. 1 shows an arrangement of 100 automatic subscribers lines with switching means for extending any of said lines to an operators position, and a lamp indicator at the position;
  • Each row of impedances is connected tothe winding of a .horizontal relay and each column of impedances is connected to the winding of a vertical relay and a relay in a row -and another relay in a column, when operated in the manner described hereinafter, will mark a. particular cross-point.
  • a network of the above type for the identification of each .of the linesin a one-hundred line group, there would be ten horizontal relays Htl-H9 and ten vertical relays VU-VB through the contacts of which may be controlled a lamp circuit (as shown in Fig. l) or a register or a printer, depending upon the manner and form in which the calling line indication is desired.
  • lamp indicators registers and printers, and the manner in which they can be respectively controlled through settable relays are all well known in the electrical arts, a lamp indicator
  • Fig. l three subscribers lines of a one-'hunresistance, with the correspondingly numbered impedance cross-point reserved for thelne in the identication circuit of Fig. 2.
  • 'Ihus the sleeve terminal of line Oil isl joined to impedance cross-point 90 by conductor
  • sleeve terminal of each of the other lines in the group is connected by its own conductor to the corresponding cross-point in the network of the identiiicationv circuit.
  • the application of said source of potential to the sleeve of trunk jack IDI will establish a current ow from the positive pole of said battery, sleeve of the cord, sleeve
  • An identiiication circuit for the lines of a telephone system comprising in combination a plurality of current responsive devices and a net# work of impedance cross-points in which each cross-point identifies a particular line and through Which'a potentialV applied to any cross# point produces a current flow through the impedance of said cross-point, whereby said plurality of devices are operated to identify the line corresponding to the cross-point to which the potential was applied.
  • a calling line identification circuit comprising, in combination with a group of line lterminals, a source of potential connectedgto one of said terminals, a plurality of current responsive devices, and a rectiiier network connected to said terminals and to said devices whereby a current path is established from said source of potential through two of said electroresponsive devices lfor operating said devices to identify the terminal to which said source of potential is connected.
  • An identi-cation circuit for the lines of a ltelephone system comprising a plurality of cop ⁇ vper-oxide rectiers arranged in pairs to forni rows and columns indicative of the digital designations of said lines, a conductor extending from each of said lines to each of said paired copperoxide rectifiers in accordance with the designation of the line, and relay means operatively responsive to the application of a potential to any one of said conductors for indicating the numerical identity of the line to the conductor of which the potential Was applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
US295889A 1939-09-21 1939-09-21 Telephone system Expired - Lifetime US2244700A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE441725D BE441725A (en(2012)) 1939-09-21
NL67277D NL67277C (en(2012)) 1939-09-21
US295889A US2244700A (en) 1939-09-21 1939-09-21 Telephone system
FR902622D FR902622A (fr) 1939-09-21 1942-01-10 Circuits identificateurs de lignes pour systèmes téléphoniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US295889A US2244700A (en) 1939-09-21 1939-09-21 Telephone system

Publications (1)

Publication Number Publication Date
US2244700A true US2244700A (en) 1941-06-10

Family

ID=23139643

Family Applications (1)

Application Number Title Priority Date Filing Date
US295889A Expired - Lifetime US2244700A (en) 1939-09-21 1939-09-21 Telephone system

Country Status (4)

Country Link
US (1) US2244700A (en(2012))
BE (1) BE441725A (en(2012))
FR (1) FR902622A (en(2012))
NL (1) NL67277C (en(2012))

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440277A (en) * 1941-08-21 1948-04-27 Int Standard Electric Corp Calling line identification system
US2600502A (en) * 1948-04-24 1952-06-17 Bell Telephone Labor Inc Calling line and private branch exchange line identifier
US2657272A (en) * 1951-03-03 1953-10-27 Bell Telephone Labor Inc Electronic induction translator
US2672515A (en) * 1950-01-28 1954-03-16 Bell Telephone Labor Inc Calling station identification circuit
US2696600A (en) * 1950-11-30 1954-12-07 Rca Corp Combinatorial information-storage network
US2697551A (en) * 1945-04-19 1954-12-21 Ncr Co Data indicating means
US2724019A (en) * 1950-10-13 1955-11-15 Int Standard Electric Corp Automatic telephone systems
US2740842A (en) * 1952-02-12 1956-04-03 Commercial Radio Sound Corp Audible and visual two-way communication and annunciation system for hospitals and the like
US2776091A (en) * 1950-06-15 1957-01-01 Bull Sa Machines Electrical apparatus for computing a check symbol
US2844811A (en) * 1952-08-20 1958-07-22 Monroe Calculating Machine Switching circuits
US2896021A (en) * 1954-02-09 1959-07-21 Standard Electric Time Co Inter-communication system
US2926334A (en) * 1955-04-20 1960-02-23 Bell Telephone Labor Inc Error detection circuit
US2934603A (en) * 1951-07-12 1960-04-26 Nederlanden Staat Electronic relay and the control of arrangements therewith
US2972015A (en) * 1957-05-08 1961-02-14 Fairchild Camera Instr Co Coding apparatus
US2978641A (en) * 1956-10-31 1961-04-04 Siemens And Halske Ag Berlin A Circuit ambiguity testing apparatus
US2992410A (en) * 1956-02-28 1961-07-11 Bell Telephone Labor Inc Selector for switching network
US3016425A (en) * 1956-12-18 1962-01-09 Bell Telephone Labor Inc Ferroelectric translator
US3017459A (en) * 1958-07-14 1962-01-16 Fairchild Camera Instr Co Coding apparatus
US3088103A (en) * 1958-12-18 1963-04-30 Royal Mcbee Corp Matrix encoders
US3160101A (en) * 1962-02-15 1964-12-08 North Electric Co Automatic selective control of pumping engines
US3206729A (en) * 1960-12-22 1965-09-14 Daniel Roger Hegelbacher System for ascertaining from a distance the electrical conditions of a switching device
US3890473A (en) * 1973-04-19 1975-06-17 Gte International Inc Operator display arrangements

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440277A (en) * 1941-08-21 1948-04-27 Int Standard Electric Corp Calling line identification system
US2697551A (en) * 1945-04-19 1954-12-21 Ncr Co Data indicating means
US2600502A (en) * 1948-04-24 1952-06-17 Bell Telephone Labor Inc Calling line and private branch exchange line identifier
US2672515A (en) * 1950-01-28 1954-03-16 Bell Telephone Labor Inc Calling station identification circuit
US2776091A (en) * 1950-06-15 1957-01-01 Bull Sa Machines Electrical apparatus for computing a check symbol
US2724019A (en) * 1950-10-13 1955-11-15 Int Standard Electric Corp Automatic telephone systems
US2696600A (en) * 1950-11-30 1954-12-07 Rca Corp Combinatorial information-storage network
US2657272A (en) * 1951-03-03 1953-10-27 Bell Telephone Labor Inc Electronic induction translator
US2934603A (en) * 1951-07-12 1960-04-26 Nederlanden Staat Electronic relay and the control of arrangements therewith
US2740842A (en) * 1952-02-12 1956-04-03 Commercial Radio Sound Corp Audible and visual two-way communication and annunciation system for hospitals and the like
US2844811A (en) * 1952-08-20 1958-07-22 Monroe Calculating Machine Switching circuits
US2896021A (en) * 1954-02-09 1959-07-21 Standard Electric Time Co Inter-communication system
US2926334A (en) * 1955-04-20 1960-02-23 Bell Telephone Labor Inc Error detection circuit
US2992410A (en) * 1956-02-28 1961-07-11 Bell Telephone Labor Inc Selector for switching network
US2978641A (en) * 1956-10-31 1961-04-04 Siemens And Halske Ag Berlin A Circuit ambiguity testing apparatus
US3016425A (en) * 1956-12-18 1962-01-09 Bell Telephone Labor Inc Ferroelectric translator
US2972015A (en) * 1957-05-08 1961-02-14 Fairchild Camera Instr Co Coding apparatus
US3017459A (en) * 1958-07-14 1962-01-16 Fairchild Camera Instr Co Coding apparatus
US3088103A (en) * 1958-12-18 1963-04-30 Royal Mcbee Corp Matrix encoders
US3206729A (en) * 1960-12-22 1965-09-14 Daniel Roger Hegelbacher System for ascertaining from a distance the electrical conditions of a switching device
US3160101A (en) * 1962-02-15 1964-12-08 North Electric Co Automatic selective control of pumping engines
US3890473A (en) * 1973-04-19 1975-06-17 Gte International Inc Operator display arrangements

Also Published As

Publication number Publication date
FR902622A (fr) 1945-09-05
NL67277C (en(2012))
BE441725A (en(2012))

Similar Documents

Publication Publication Date Title
US2244700A (en) Telephone system
USRE23388E (en) Line identification circuit for
US2857470A (en) Transistor line identifier
US2892037A (en) Electrical information system
US2342245A (en) Electric signaling
GB550235A (en) Improvements in telephone systems
US2615094A (en) Station identification for party lines
US2265844A (en) Calling line identification circuit
US2284870A (en) Telephone system
US2806088A (en) Communication system
US2672518A (en) Station identifier
US2376346A (en) Telecommunication system
US2214245A (en) Telephone system
US2298699A (en) Translation device
US3280268A (en) Arrangements for automatically identifying calling numbers and class of service of calling lines
US2600502A (en) Calling line and private branch exchange line identifier
US2164033A (en) Telephone system
US3025355A (en) Telephone station identifying system
US2310634A (en) Communication system
US2595388A (en) Telephone conversation timing means
US2595232A (en) Telephone switching system employing a transistor
US2714629A (en) Marking circuit
US3193621A (en) Telephone line finder
US3235668A (en) Telephone switching network
US3431363A (en) Nor logic screening translator