USB527693I5 - - Google Patents

Info

Publication number
USB527693I5
USB527693I5 US52769374A USB527693I5 US B527693 I5 USB527693 I5 US B527693I5 US 52769374 A US52769374 A US 52769374A US B527693 I5 USB527693 I5 US B527693I5
Authority
US
United States
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
Other languages
English (en)
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 USB527693I5 publication Critical patent/USB527693I5/en
Application granted granted Critical
Publication of US3995233A publication Critical patent/US3995233A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03B5/30—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
    • 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
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or 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
    • H03B5/02—Details
    • H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
    • 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
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/0087—Measures to address temperature induced variations of modulation
    • H03C2200/0091—Measures to address temperature induced variations of modulation by stabilising the temperature
US05/527,693 1973-12-05 1974-11-27 Temperature compensated variable frequency crystal oscillator Expired - Lifetime US3995233A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48138442A JPS5087559A (nl) 1973-12-05 1973-12-05
JA48-138442 1973-12-05

Publications (2)

Publication Number Publication Date
USB527693I5 true USB527693I5 (nl) 1976-02-03
US3995233A US3995233A (en) 1976-11-30

Family

ID=15222076

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/527,693 Expired - Lifetime US3995233A (en) 1973-12-05 1974-11-27 Temperature compensated variable frequency crystal oscillator

Country Status (8)

Country Link
US (1) US3995233A (nl)
JP (1) JPS5087559A (nl)
CA (1) CA1014627A (nl)
DE (1) DE2457374C2 (nl)
FR (1) FR2254148B1 (nl)
GB (1) GB1481630A (nl)
IT (1) IT1026821B (nl)
NL (1) NL187776C (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350961A (en) 1978-11-10 1982-09-21 Kabushiki Kaisha Daini Seikosha Electronic timepiece

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2945546C2 (de) * 1979-11-10 1983-09-29 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung für abstimmbare HF-Kreise
FR2501434B1 (fr) * 1981-03-03 1985-10-11 Cepe Oscillateur a frequence commandee comportant un element piezoelectrique et presentant une plage de variation de frequence etendue
US4511863A (en) * 1983-03-22 1985-04-16 General Electric Company Combined modulation and temperature compensation circuit
US4620226A (en) * 1984-05-17 1986-10-28 Cheung William S H Apparatus for producing audio and visual signals for modulating a television system carrier signal
US4607239A (en) * 1985-02-28 1986-08-19 The United States Of America As Represented By The Secretary Of The Army Adjustment of the frequency-temperature characteristics of crystal oscillators
US4630008A (en) * 1985-03-29 1986-12-16 Weeks Richard W Direct FM crystal-controlled oscillator
US4924195A (en) * 1989-06-19 1990-05-08 At&T Bell Laboratories Crystal oscillator with broad tuning capability
US4951007A (en) * 1989-10-04 1990-08-21 The United States Of America As Represented By The Secretary Of The Army Temperature compensated crystal oscillator (TCXO) with improved temperature compensation
US5030926A (en) * 1990-07-10 1991-07-09 At&T Bell Laboratories Voltage controlled balanced crystal oscillator circuit
EP0744836A3 (en) * 1995-05-25 1998-03-25 Kabushiki Kaisha Meidensha Temperature compensated crystal oscillator
CA2446754A1 (en) * 2001-05-21 2002-11-28 Thomson Licensing S.A. Wide band voltage controlled crystal oscillator
JP2003332842A (ja) * 2002-05-13 2003-11-21 Fujitsu Media Device Kk 発振器
CA2582322C (en) * 2004-10-11 2013-12-10 Spartak Gevorgian A varactor device with reduced temperature dependence
US7511476B2 (en) * 2005-01-04 2009-03-31 Digisensors, Inc. Electromagnetic sensor systems and methods of use thereof
JP6397066B2 (ja) * 2017-02-20 2018-09-26 日本電波工業株式会社 水晶発振器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373379A (en) * 1966-06-17 1968-03-12 Motorola Inc Crystal oscillator with temperature compensation
US3569865A (en) * 1969-06-12 1971-03-09 Us Navy High stability voltage-controlled crystal oscillator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4314672Y1 (nl) * 1965-06-02 1968-06-20

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373379A (en) * 1966-06-17 1968-03-12 Motorola Inc Crystal oscillator with temperature compensation
US3569865A (en) * 1969-06-12 1971-03-09 Us Navy High stability voltage-controlled crystal oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350961A (en) 1978-11-10 1982-09-21 Kabushiki Kaisha Daini Seikosha Electronic timepiece

Also Published As

Publication number Publication date
GB1481630A (en) 1977-08-03
NL7415768A (nl) 1975-06-09
NL187776B (nl) 1991-08-01
DE2457374A1 (de) 1975-06-12
IT1026821B (it) 1978-10-20
JPS5087559A (nl) 1975-07-14
DE2457374C2 (de) 1986-02-13
FR2254148A1 (nl) 1975-07-04
CA1014627A (en) 1977-07-26
FR2254148B1 (nl) 1978-06-23
NL187776C (nl) 1992-01-02
US3995233A (en) 1976-11-30

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