NL145998B - Fm-modulator. - Google Patents

Fm-modulator.

Info

Publication number
NL145998B
NL145998B NL63298376A NL298376A NL145998B NL 145998 B NL145998 B NL 145998B NL 63298376 A NL63298376 A NL 63298376A NL 298376 A NL298376 A NL 298376A NL 145998 B NL145998 B NL 145998B
Authority
NL
Netherlands
Prior art keywords
modulator
Prior art date
Application number
NL63298376A
Other languages
English (en)
Dutch (nl)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of NL145998B publication Critical patent/NL145998B/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/22—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode
    • H03C3/222—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode using 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
    • H03B5/1231—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
    • H03B5/1237—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
    • H03B5/124—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 a voltage dependent capacitance
    • H03B5/1243—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 a voltage dependent capacitance the means comprising voltage variable capacitance diodes
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0086—Functional aspects of oscillators relating to the Q factor or damping of the resonant circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/0079—Measures to linearise modulation or reduce distortion of modulation characteristics
NL63298376A 1962-09-28 1963-09-25 Fm-modulator. NL145998B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES81779A DE1252761B (da) 1962-09-28 1962-09-28

Publications (1)

Publication Number Publication Date
NL145998B true NL145998B (nl) 1975-05-15

Family

ID=7509884

Family Applications (2)

Application Number Title Priority Date Filing Date
NL298376D NL298376A (da) 1962-09-28
NL63298376A NL145998B (nl) 1962-09-28 1963-09-25 Fm-modulator.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL298376D NL298376A (da) 1962-09-28

Country Status (7)

Country Link
US (1) US3290618A (da)
DE (1) DE1252761B (da)
DK (1) DK140239B (da)
FI (1) FI40551B (da)
GB (1) GB1025979A (da)
NL (2) NL145998B (da)
SE (1) SE315017B (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1121439A (en) * 1965-08-03 1968-07-24 Int Standard Electric Corp Electronic tunable oscillator circuit
GB1150910A (en) * 1965-12-30 1969-05-07 Niels Edmund Guldbaek Kaiser Improvements in or relating to Implantable Power Sources
DE1591121A1 (de) * 1966-03-07 1970-05-14 Fujitsu Ltd Frequenzmodulator
US3400338A (en) * 1967-03-23 1968-09-03 Melpar Inc Wide band voltage controlled oscillator
US3622914A (en) * 1969-02-21 1971-11-23 Korea Inst Sci & Tech Amplitude modulated crystal oscillator
US4786828A (en) * 1987-05-15 1988-11-22 Hoffman Charles R Bias scheme for achieving voltage independent capacitance
US7548136B1 (en) * 2006-06-09 2009-06-16 Rf Magic, Inc. Distortion reduction for variable capacitance devices

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984794A (en) * 1959-04-07 1961-05-16 Collins Radio Co Stable f. m. oscillator
US3156910A (en) * 1959-08-10 1964-11-10 James S Tarbutton Telemetering system
DE1114854B (de) * 1959-12-30 1961-10-12 Philips Patentverwaltung Quarzstabilisierter, frequenzmodulierbarer Oszillator
US3068427A (en) * 1960-02-11 1962-12-11 Motorola Inc Frequency modulator including voltage sensitive capacitors for changing the effective capacitance and inductance of an oscillator circuit

Also Published As

Publication number Publication date
DK140239B (da) 1979-07-09
DK140239C (da) 1979-12-03
GB1025979A (en) 1966-04-14
NL298376A (da)
US3290618A (en) 1966-12-06
FI40551B (da) 1968-11-30
DE1252761B (da) 1967-10-26
SE315017B (da) 1969-09-22

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: SIEMENS