CA996206A - Crystal oscillation modulating circuit - Google Patents

Crystal oscillation modulating circuit

Info

Publication number
CA996206A
CA996206A CA198,241A CA198241A CA996206A CA 996206 A CA996206 A CA 996206A CA 198241 A CA198241 A CA 198241A CA 996206 A CA996206 A CA 996206A
Authority
CA
Canada
Prior art keywords
crystal oscillation
modulating circuit
oscillation modulating
circuit
crystal
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.)
Expired
Application number
CA198,241A
Inventor
Mashiko Yamamoto
Noriyoshi Kubo
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of CA996206A publication Critical patent/CA996206A/en
Expired legal-status Critical Current

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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/007—Generation of oscillations based on harmonic frequencies, e.g. overtone oscillators
    • 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/362—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator 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
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
    • H03B5/366—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current
    • H03B5/368—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current the means being voltage variable capacitance diodes
    • 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
CA198,241A 1973-04-27 1974-04-26 Crystal oscillation modulating circuit Expired CA996206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48047856A JPS49135558A (en) 1973-04-27 1973-04-27

Publications (1)

Publication Number Publication Date
CA996206A true CA996206A (en) 1976-08-31

Family

ID=12786999

Family Applications (1)

Application Number Title Priority Date Filing Date
CA198,241A Expired CA996206A (en) 1973-04-27 1974-04-26 Crystal oscillation modulating circuit

Country Status (5)

Country Link
JP (1) JPS49135558A (en)
CA (1) CA996206A (en)
DE (1) DE2420420A1 (en)
FR (1) FR2227683B1 (en)
GB (1) GB1472884A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904045C2 (en) * 1979-02-02 1982-04-15 Siemens AG, 1000 Berlin und 8000 München Quartz oscillator with mixed inductive and capacitive oscillation frequency control
IT1137411B (en) * 1981-03-05 1986-09-10 Italtel Spa CIRCUIT FOR VERY HIGH FREQUENCY SIGNALS INCLUDING AT LEAST ONE MICROSTRIP
JPS57166704A (en) * 1981-04-06 1982-10-14 Nec Corp Voltage-controlled oscillator
JPH06188729A (en) * 1992-12-16 1994-07-08 Murata Mfg Co Ltd Noise removing circuit and voltage-controlled oscillation circuit
JP2007049254A (en) * 2005-08-08 2007-02-22 Nippon Dempa Kogyo Co Ltd Crystal oscillator
GB0724475D0 (en) * 2007-12-14 2008-01-30 Acp Advanced Circuit Pursuit A Variable inductor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925561A (en) * 1955-07-01 1960-02-16 Motorola Inc Crystal oscillator system
US3382463A (en) * 1967-02-20 1968-05-07 Damon Eng Inc Variable frequency voltage controlled crystal oscillator

Also Published As

Publication number Publication date
FR2227683A1 (en) 1974-11-22
DE2420420A1 (en) 1974-11-07
FR2227683B1 (en) 1978-06-02
JPS49135558A (en) 1974-12-27
GB1472884A (en) 1977-05-11

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