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NL69121C - Schakeling voor een seinstelsel in het bijzonder automatisch telefoonstelsel - Google Patents

Schakeling voor een seinstelsel in het bijzonder automatisch telefoonstelsel

Info

Publication number
NL69121C
NL69121C NL137266A NL137266A NL69121C NL 69121 C NL69121 C NL 69121C NL 137266 A NL137266 A NL 137266A NL 137266 A NL137266 A NL 137266A NL 69121 C NL69121 C NL 69121C
Authority
NL
Netherlands
Prior art keywords
circuit
automatic telephone
signaling
telephone system
signaling system
Prior art date
Application number
NL137266A
Other languages
English (en)
Original Assignee
Bell Telephone Manufacturing Co Sa
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 Manufacturing Co Sa filed Critical Bell Telephone Manufacturing Co Sa
Application granted granted Critical
Publication of NL69121C publication Critical patent/NL69121C/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/515—Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of DC signals of alternating polarity, coded pulses or impedance dialling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL137266A 1943-08-28 1947-12-20 Schakeling voor een seinstelsel in het bijzonder automatisch telefoonstelsel NL69121C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US500412A US2454780A (en) 1943-08-28 1943-08-28 Telecommunication switching system

Publications (1)

Publication Number Publication Date
NL69121C true NL69121C (nl) 1951-12-15

Family

ID=23989303

Family Applications (1)

Application Number Title Priority Date Filing Date
NL137266A NL69121C (nl) 1943-08-28 1947-12-20 Schakeling voor een seinstelsel in het bijzonder automatisch telefoonstelsel

Country Status (4)

Country Link
US (1) US2454780A (nl)
BE (1) BE466586A (nl)
GB (1) GB600504A (nl)
NL (1) NL69121C (nl)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564062A (en) * 1949-11-25 1951-08-14 Automatic Elect Lab Selective signaling system employing condenser charge
US2961641A (en) * 1958-03-19 1960-11-22 Schlumberger Well Surv Corp Pulse height analyzer apparatus
US3051901A (en) * 1958-06-24 1962-08-28 Bell Telephone Labor Inc Encoder for pulse code modulation
US3082405A (en) * 1958-10-15 1963-03-19 Richard J Hanak Electrical systems
US3675205A (en) * 1969-04-08 1972-07-04 Midwest Communications & Audio System for selection and remote control with sequential decoding having plural decoding stages

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2002219A (en) * 1935-05-21 Telephone system
US1631625A (en) * 1923-01-30 1927-06-07 Gen Electric Regulating method and apparatus
US1982290A (en) * 1927-12-24 1934-11-27 John E Gardner Selecting system
US1819599A (en) * 1929-01-28 1931-08-18 Oliver T Francis Transmission system
US2060184A (en) * 1935-11-21 1936-11-10 Bell Telephone Labor Inc Telephone system
DE704414C (de) * 1936-09-27 1941-03-29 Zwietusch E & Co Gmbh Schaltspeicher, insbesondere Zahlengeber fuer Fernsprechanlagen
US2294464A (en) * 1938-04-09 1942-09-01 Bell Telephone Labor Inc Impulse transmitter
US2306087A (en) * 1941-06-19 1942-12-22 Bell Telephone Labor Inc Key pulsing register circuit

Also Published As

Publication number Publication date
BE466586A (fr) 1947-01-12
GB600504A (en) 1948-04-12
US2454780A (en) 1948-11-30

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