NO117699B - - Google Patents

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Publication number
NO117699B
NO117699B NO158838A NO15883865A NO117699B NO 117699 B NO117699 B NO 117699B NO 158838 A NO158838 A NO 158838A NO 15883865 A NO15883865 A NO 15883865A NO 117699 B NO117699 B NO 117699B
Authority
NO
Norway
Prior art keywords
cylinder
hollow cylinder
retractable
power supply
extended
Prior art date
Application number
NO158838A
Other languages
English (en)
Norwegian (no)
Inventor
J Martens
M Natens
Original Assignee
Standard Tel Kabelfab As
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 Standard Tel Kabelfab As filed Critical Standard Tel Kabelfab As
Publication of NO117699B publication Critical patent/NO117699B/no

Links

Classifications

    • 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
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Logic Circuits (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Fuses (AREA)
NO158838A 1964-07-09 1965-07-07 NO117699B (en])

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6407780A NL6407780A (en]) 1964-07-09 1964-07-09

Publications (1)

Publication Number Publication Date
NO117699B true NO117699B (en]) 1969-09-15

Family

ID=19790484

Family Applications (1)

Application Number Title Priority Date Filing Date
NO158838A NO117699B (en]) 1964-07-09 1965-07-07

Country Status (7)

Country Link
US (1) US3470532A (en])
BE (1) BE666614A (en])
CH (1) CH443398A (en])
DE (1) DE1290965B (en])
GB (1) GB1064250A (en])
NL (1) NL6407780A (en])
NO (1) NO117699B (en])

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688261A (en) * 1970-10-05 1972-08-29 Litton Business Systems Inc Logic processing system
US3710031A (en) * 1970-12-23 1973-01-09 Itt Multi frequency receiver
US3836727A (en) * 1972-01-27 1974-09-17 Philips Corp Signal receiver for receiving signals of different frequency
US3898616A (en) * 1974-07-18 1975-08-05 Bell Telephone Labor Inc Threshold logic circuit for detecting exactly M out of a set of N signals
DE2534636A1 (de) * 1975-08-02 1977-02-17 Telefonbau & Normalzeit Gmbh Schaltungsanordnung zum senden von anschaltinformationen, insbesondere in nebenstellenanlagen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675538A (en) * 1953-03-05 1954-04-13 Bell Telephone Labor Inc Checking circuit
US2966659A (en) * 1953-12-30 1960-12-27 Bell Telephone Labor Inc Signaling system
US2784393A (en) * 1954-02-26 1957-03-05 Bendix Aviat Corp Frequency multiplex telemetering system
FR1182796A (fr) * 1958-10-03 1959-06-29 Int Standard Electric Corp Perfectionnements aux systèmes de télétransmission par code
GB919172A (en]) * 1959-04-23
NL267564A (en]) * 1960-08-22
US3143602A (en) * 1961-05-19 1964-08-04 Bell Telephone Labor Inc Multifrequency signal receiver
DE1144509B (de) * 1961-05-31 1963-02-28 Licentia Gmbh Einrichtung zur UEberwachung von Signalen

Also Published As

Publication number Publication date
NL6407780A (en]) 1966-01-10
DE1290965B (de) 1969-03-20
GB1064250A (en) 1967-04-05
CH443398A (de) 1967-09-15
US3470532A (en) 1969-09-30
BE666614A (en]) 1966-01-10

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