NL82003C - - Google Patents

Info

Publication number
NL82003C
NL82003C NL82003DA NL82003C NL 82003 C NL82003 C NL 82003C NL 82003D A NL82003D A NL 82003DA NL 82003 C NL82003 C NL 82003C
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 NL82003C publication Critical patent/NL82003C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/78—Generating a single train of pulses having a predetermined pattern, e.g. a predetermined number

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL82003D 1949-10-11 NL82003C (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB293575X 1949-10-11

Publications (1)

Publication Number Publication Date
NL82003C true NL82003C (ko)

Family

ID=10290236

Family Applications (1)

Application Number Title Priority Date Filing Date
NL82003D NL82003C (ko) 1949-10-11

Country Status (6)

Country Link
US (1) US2677768A (ko)
BE (1) BE497732A (ko)
CH (1) CH293575A (ko)
DE (1) DE844754C (ko)
GB (1) GB668430A (ko)
NL (1) NL82003C (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832838A (en) * 1952-07-28 1958-04-29 Gen Dynamics Corp Electronic ringing apparatus
BE523372A (ko) * 1952-10-08
US2855515A (en) * 1954-06-30 1958-10-07 Rca Corp Television test apparatus
US3059061A (en) * 1959-06-26 1962-10-16 Lorain Prod Corp Telephone signaling frequencies generator
US3065309A (en) * 1960-03-07 1962-11-20 Automatic Elect Lab Electronic tone generator
DE1254197B (de) * 1966-08-10 1967-11-16 Telefunken Patent Schaltungsanordnung zur Erzeugung von Hoerzeichen in Fernmelde-, insbesondere Fernsprechanlagen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2390608A (en) * 1943-10-05 1945-12-11 Rca Corp Frequency multiplier
US2540539A (en) * 1947-10-11 1951-02-06 Rca Corp Multivibrator type oscillator
US2569827A (en) * 1948-12-29 1951-10-02 Ibm Polarity pulsing of triggers

Also Published As

Publication number Publication date
CH293575A (fr) 1953-09-30
BE497732A (ko)
US2677768A (en) 1954-05-04
DE844754C (de) 1952-07-28
GB668430A (en) 1952-03-19

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