NL215077A - - Google Patents

Info

Publication number
NL215077A
NL215077A NL215077DA NL215077A NL 215077 A NL215077 A NL 215077A NL 215077D A NL215077D A NL 215077DA NL 215077 A NL215077 A NL 215077A
Authority
NL
Netherlands
Application number
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.)
Publication of NL215077A publication Critical patent/NL215077A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
    • H03K3/16—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using a transformer for feedback, e.g. blocking oscillator with saturable core
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
NL215077D 1931-07-02 NL215077A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2070900X 1931-07-02

Publications (1)

Publication Number Publication Date
NL215077A true NL215077A (ko)

Family

ID=10897651

Family Applications (1)

Application Number Title Priority Date Filing Date
NL215077D NL215077A (ko) 1931-07-02

Country Status (2)

Country Link
US (1) US2070900A (ko)
NL (1) NL215077A (ko)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416096A (en) * 1941-11-18 1947-02-18 Automatic Elect Lab Selective electrical circuit
US2433845A (en) * 1941-11-28 1948-01-06 Harvey C Hayes Sound operated relay system
FR960757A (ko) * 1944-01-07 1950-04-25
US2503835A (en) * 1944-09-01 1950-04-11 Philco Corp Signal maintaining circuit
US2533587A (en) * 1944-09-11 1950-12-12 Reconstruction Finance Corp Controller
US3033146A (en) * 1944-09-15 1962-05-08 Bell Telephone Labor Inc Control circuits
US2489202A (en) * 1945-01-19 1949-11-22 Hartford Nat Bank & Trust Comp Calling and warning apparatus for communication systems
US2468574A (en) * 1945-03-23 1949-04-26 Teletype Corp Selective control of printer motors at outlying telegraph stations
US2542998A (en) * 1945-07-16 1951-02-27 Int Standard Electric Corp Matched potential control system
US2709773A (en) * 1945-10-19 1955-05-31 Ivan A Getting Remote control system with position indicating means
US2501048A (en) * 1946-10-11 1950-03-21 Haller Raymond And Brown Inc Announcing system
US2547023A (en) * 1947-05-23 1951-04-03 Motorola Inc Selective calling system
US2512750A (en) * 1947-07-07 1950-06-27 John T Potter Trigger circuit
US2546591A (en) * 1947-11-12 1951-03-27 Belmont Radio Corp High-voltage power supply
US2679000A (en) * 1949-01-13 1954-05-18 Harold B Reynolds Noise squelch system for frequency modulation receivers
US2680808A (en) * 1950-07-20 1954-06-08 Marchant Calculators Inc Capacitor charging and discharging circuit
US2748269A (en) * 1950-11-02 1956-05-29 Ralph J Slutz Regenerative shaping of electric pulses
US2710953A (en) * 1952-07-29 1955-06-14 Westinghouse Air Brake Co High selectivity resonant circuits
US2784307A (en) * 1952-08-25 1957-03-05 Flite Tronics Inc Marker beacon receiver
US2899494A (en) * 1954-06-02 1959-08-11 System for the translation of intelligence
US2842721A (en) * 1954-06-02 1958-07-08 Tung Sol Electric Inc Control circuit

Also Published As

Publication number Publication date
US2070900A (en) 1937-02-16

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