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
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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JA48-138442 | 1973-12-05 | ||
JP48138442A JPS5087559A (US20080293856A1-20081127-C00150.png) | 1973-12-05 | 1973-12-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
USB527693I5 true USB527693I5 (US20080293856A1-20081127-C00150.png) | 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)
Cited By (1)
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)
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 |
KR20040012852A (ko) * | 2001-05-21 | 2004-02-11 | 톰슨 라이센싱 에스.에이. | 광대역 전압 제어형 수정 발진기 |
JP2003332842A (ja) * | 2002-05-13 | 2003-11-21 | Fujitsu Media Device Kk | 発振器 |
KR101180179B1 (ko) * | 2004-10-11 | 2012-09-05 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 온도 의존성이 감소된 버랙터 장치 |
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4314672Y1 (US20080293856A1-20081127-C00150.png) * | 1965-06-02 | 1968-06-20 |
-
1973
- 1973-12-05 JP JP48138442A patent/JPS5087559A/ja active Pending
-
1974
- 1974-11-27 US US05/527,693 patent/US3995233A/en not_active Expired - Lifetime
- 1974-12-03 NL NLAANVRAGE7415768,A patent/NL187776C/xx not_active IP Right Cessation
- 1974-12-04 GB GB52463/74A patent/GB1481630A/en not_active Expired
- 1974-12-04 CA CA215,243A patent/CA1014627A/en not_active Expired
- 1974-12-04 DE DE2457374A patent/DE2457374C2/de not_active Expired
- 1974-12-05 FR FR7439892A patent/FR2254148B1/fr not_active Expired
- 1974-12-05 IT IT30222/74A patent/IT1026821B/it active
Patent Citations (2)
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)
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 |
---|---|
DE2457374C2 (de) | 1986-02-13 |
NL7415768A (nl) | 1975-06-09 |
GB1481630A (en) | 1977-08-03 |
US3995233A (en) | 1976-11-30 |
CA1014627A (en) | 1977-07-26 |
FR2254148B1 (US20080293856A1-20081127-C00150.png) | 1978-06-23 |
JPS5087559A (US20080293856A1-20081127-C00150.png) | 1975-07-14 |
NL187776C (nl) | 1992-01-02 |
IT1026821B (it) | 1978-10-20 |
NL187776B (nl) | 1991-08-01 |
FR2254148A1 (US20080293856A1-20081127-C00150.png) | 1975-07-04 |
DE2457374A1 (de) | 1975-06-12 |