FR1543779A - Dispositif engendrant un son - Google Patents

Dispositif engendrant un son

Info

Publication number
FR1543779A
FR1543779A FR1543779DA FR1543779A FR 1543779 A FR1543779 A FR 1543779A FR 1543779D A FR1543779D A FR 1543779DA FR 1543779 A FR1543779 A FR 1543779A
Authority
FR
France
Prior art keywords
generating device
sound generating
sound
generating
Prior art date
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.)
Active
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 FR1543779A publication Critical patent/FR1543779A/fr
Active 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • 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
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
    • H03B5/1262—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising switched elements
FR1543779D 1966-12-23 Dispositif engendrant un son Active FR1543779A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60424466A 1966-12-23 1966-12-23

Publications (1)

Publication Number Publication Date
FR1543779A true FR1543779A (fr)

Family

ID=24418814

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1543779D Active FR1543779A (fr) 1966-12-23 Dispositif engendrant un son

Country Status (7)

Country Link
US (1) US3427569A (fr)
BE (1) BE706271A (fr)
CH (1) CH460093A (fr)
ES (1) ES348527A1 (fr)
FR (1) FR1543779A (fr)
GB (1) GB1174458A (fr)
NL (1) NL6717360A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573663A (en) * 1969-02-10 1971-04-06 Lorain Prod Corp Frequency control circuit
US3932824A (en) * 1970-03-06 1976-01-13 Wycoff Keith H Signal selective circuit
JPS5121282B1 (fr) * 1970-09-19 1976-07-01
JPS5121283B1 (fr) * 1970-09-19 1976-07-01
SE358799B (fr) * 1971-12-06 1973-08-06 Sonab Dev Ab
US3891940A (en) * 1973-02-10 1975-06-24 Iwatsu Electric Co Ltd Two-tone generator using transistors for switching LC resonant circuits
US3971896A (en) * 1973-11-16 1976-07-27 Iwasaki Tsushinki Kabushiki Kaisha Two-tone generator using switching transistors in LC resonant circuits controlled by push-button
FR2612017A1 (fr) * 1987-03-03 1988-09-09 Aerospatiale Oscillateur a circuit accorde reglable dans une large gamme de frequence
US5872489A (en) * 1997-04-28 1999-02-16 Rockwell Science Center, Llc Integrated tunable inductance network and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532455A (en) * 1947-04-23 1950-12-05 Rca Corp Oscillation generator
US2761066A (en) * 1951-10-25 1956-08-28 Harris A Robinson Harmonic generator
US2801341A (en) * 1956-01-24 1957-07-30 David L Jaffe Oscillator
US2930991A (en) * 1958-03-03 1960-03-29 Rca Corp Frequency shift oscillator
NL242923A (fr) * 1958-09-08
US2991357A (en) * 1959-08-31 1961-07-04 Gen Electric Amplitude modulated radio frequency transmitter
US3101447A (en) * 1960-11-10 1963-08-20 Magnavox Co Modulated oscillator circuit

Also Published As

Publication number Publication date
US3427569A (en) 1969-02-11
NL6717360A (fr) 1968-06-24
CH460093A (de) 1968-07-31
ES348527A1 (es) 1969-03-16
BE706271A (fr) 1968-03-18
GB1174458A (en) 1969-12-17

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