JPS5023943B1 - - Google Patents

Info

Publication number
JPS5023943B1
JPS5023943B1 JP45063498A JP6349870A JPS5023943B1 JP S5023943 B1 JPS5023943 B1 JP S5023943B1 JP 45063498 A JP45063498 A JP 45063498A JP 6349870 A JP6349870 A JP 6349870A JP S5023943 B1 JPS5023943 B1 JP S5023943B1
Authority
JP
Japan
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.)
Pending
Application number
JP45063498A
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 filed Critical
Publication of JPS5023943B1 publication Critical patent/JPS5023943B1/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
    • H03B5/24—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being semiconductor device
    • 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
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/0275—Varying the frequency of the oscillations by electronic means the means delivering several selected voltages or currents
    • H03B2201/0283—Varying the frequency of the oscillations by electronic means the means delivering several selected voltages or currents the means functioning digitally

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
JP45063498A 1969-07-22 1970-07-21 Pending JPS5023943B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84332169A 1969-07-22 1969-07-22

Publications (1)

Publication Number Publication Date
JPS5023943B1 true JPS5023943B1 (ja) 1975-08-12

Family

ID=25289631

Family Applications (1)

Application Number Title Priority Date Filing Date
JP45063498A Pending JPS5023943B1 (ja) 1969-07-22 1970-07-21

Country Status (6)

Country Link
US (1) US3612773A (ja)
JP (1) JPS5023943B1 (ja)
BE (1) BE753623A (ja)
DE (1) DE2035196A1 (ja)
FR (1) FR2055272A5 (ja)
GB (1) GB1301135A (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795179A (fr) * 1972-02-11 1973-08-09 Gte Automatic Electric Lab Inc Generateur acoustique a clavier de selection
US3790813A (en) * 1972-11-30 1974-02-05 Gte Automatic Electric Lab Inc Film switching system for mutually isolated circuits
GB2006492B (en) * 1977-08-12 1982-01-20 English Electric Co Ltd Input circuits

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE572049A (ja) * 1957-12-03 1900-01-01
US3246173A (en) * 1964-01-29 1966-04-12 Rca Corp Signal translating circuit employing insulated-gate field effect transistors coupledthrough a common semiconductor substrate
US3424870A (en) * 1965-09-14 1969-01-28 Bell Telephone Labor Inc Multifrequency signal generator for tone-dialed telephones
US3422229A (en) * 1965-10-24 1969-01-14 Susquehanna Corp Electronic transmitting device
US3428832A (en) * 1966-04-21 1969-02-18 Hughes Aircraft Co Electronic switching circuit employing insulated gate field effect transistors
US3509375A (en) * 1966-10-18 1970-04-28 Honeywell Inc Switching circuitry for isolating an input and output circuit utilizing a plurality of insulated gate magnetic oxide field effect transistors
US3521141A (en) * 1967-10-30 1970-07-21 Ibm Leakage controlled electric charge switching and storing circuitry

Also Published As

Publication number Publication date
US3612773A (en) 1971-10-12
BE753623A (fr) 1970-12-31
DE2035196A1 (de) 1971-02-11
GB1301135A (en) 1972-12-29
FR2055272A5 (ja) 1971-05-07

Similar Documents

Publication Publication Date Title
AU465413B2 (ja)
AU429630B2 (ja)
AU450150B2 (ja)
CS152371B2 (ja)
AU442375B2 (ja)
CS152372B2 (ja)
FR2055272A5 (ja)
AU470301B1 (ja)
CS132962B5 (ja)
AU5113869A (ja)
AU442380B2 (ja)
AU428129B2 (ja)
AU442285B2 (ja)
AU442554B2 (ja)
AU442538B2 (ja)
AU428131B2 (ja)
AU470661B1 (ja)
AU442535B2 (ja)
AU442463B2 (ja)
AU442322B2 (ja)
CS149963B1 (ja)
AU4949169A (ja)
AU5077469A (ja)
AU5598769A (ja)
AU5228269A (ja)