BR8003552A - Circuito capaz compensar as variacoes de frequencia, como uma funcoa das variacoes de temperatura, de um oscilador de qurtzo que faz parte de um aparelho de transmissao - Google Patents
Circuito capaz compensar as variacoes de frequencia, como uma funcoa das variacoes de temperatura, de um oscilador de qurtzo que faz parte de um aparelho de transmissaoInfo
- Publication number
- BR8003552A BR8003552A BR8003552A BR8003552A BR8003552A BR 8003552 A BR8003552 A BR 8003552A BR 8003552 A BR8003552 A BR 8003552A BR 8003552 A BR8003552 A BR 8003552A BR 8003552 A BR8003552 A BR 8003552A
- Authority
- BR
- Brazil
- Prior art keywords
- variations
- qurtzo
- compensate
- function
- oscillator part
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
- H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
- H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
- H03L1/027—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using frequency conversion means which is variable with temperature, e.g. mixer, frequency divider, pulse add/substract logic circuit
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT7923479A IT7923479A0 (it) | 1979-06-12 | 1979-06-12 | Disposizione circuitale atta a compensare le variazioni di frequenza, in funzione delle variazioni di temperatura, di un oscillatore a quarzo. |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8003552A true BR8003552A (pt) | 1980-12-16 |
Family
ID=11207462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8003552A BR8003552A (pt) | 1979-06-12 | 1980-06-09 | Circuito capaz compensar as variacoes de frequencia, como uma funcoa das variacoes de temperatura, de um oscilador de qurtzo que faz parte de um aparelho de transmissao |
Country Status (10)
Country | Link |
---|---|
US (1) | US4290145A (pt) |
AR (1) | AR225041A1 (pt) |
AU (1) | AU5922480A (pt) |
BR (1) | BR8003552A (pt) |
DE (1) | DE3022109A1 (pt) |
FR (1) | FR2458942A1 (pt) |
GB (1) | GB2055521A (pt) |
HU (1) | HU180145B (pt) |
IT (1) | IT7923479A0 (pt) |
YU (1) | YU150980A (pt) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2121629B (en) * | 1982-05-18 | 1985-10-23 | Standard Telephones Cables Ltd | Temperature controlled crystal oscillator |
EP0129618B1 (en) * | 1983-05-25 | 1988-05-04 | Stc Plc | Temperature controlled crystal oscillator |
US4847888A (en) * | 1988-02-16 | 1989-07-11 | Gulton Industries, Inc., Femco Division | Field telephone system |
FR2633466B1 (fr) * | 1988-06-28 | 1990-09-21 | Alcatel Thomson Faisceaux | Oscill ateur a quartz modulable et compense en temperature |
US5113416A (en) * | 1990-10-26 | 1992-05-12 | Ericsson Ge Mobile Communications Holding, Inc. | Digital radio frequency compensation |
US5881374A (en) * | 1997-01-31 | 1999-03-09 | Telefonaktiebolaget L M Ericsson (Publ) | Circuitry and method for detecting frequency deviation caused by aging of an oscillator |
JP2003244986A (ja) * | 2002-02-19 | 2003-08-29 | Yazaki Corp | モーター制御装置 |
GB0400840D0 (en) * | 2004-01-15 | 2004-02-18 | Rolls Royce Plc | Method of processing oscillatory data |
CN107819464B (zh) * | 2016-09-13 | 2024-02-02 | 紫光同芯微电子有限公司 | 一种混合型恒温-温补晶体振荡器 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3360746A (en) * | 1963-11-19 | 1967-12-26 | Datacom Inc | Crystal controlled frequency modulated oscillator |
GB1224165A (en) * | 1967-06-15 | 1971-03-03 | Plessey Co Ltd | Improvements relating to temperature compensated crystal oscillators |
US3550006A (en) * | 1968-01-17 | 1970-12-22 | S & C Electric Co | Temperature control for crystal oscillator and modulation circuit of a radio transmitter |
US3534295A (en) * | 1968-09-05 | 1970-10-13 | Shaw Robert | Linearized frequency modulated crystal oscillators compensated for ambient temperature variations |
AU460239B2 (en) * | 1971-06-24 | 1975-04-24 | Amalgamated Wireless (Australasia) Ltd | Temperature compensation of quartz crystals |
US3821665A (en) * | 1973-06-11 | 1974-06-28 | Motorola Inc | Temperature compensated crystal oscillator |
-
1979
- 1979-06-12 IT IT7923479A patent/IT7923479A0/it unknown
-
1980
- 1980-06-04 FR FR8012419A patent/FR2458942A1/fr not_active Withdrawn
- 1980-06-05 GB GB8018399A patent/GB2055521A/en not_active Withdrawn
- 1980-06-06 AR AR281329A patent/AR225041A1/es active
- 1980-06-06 YU YU01509/80A patent/YU150980A/xx unknown
- 1980-06-09 BR BR8003552A patent/BR8003552A/pt unknown
- 1980-06-09 HU HU80801444A patent/HU180145B/hu unknown
- 1980-06-11 US US06/158,509 patent/US4290145A/en not_active Expired - Lifetime
- 1980-06-11 AU AU59224/80A patent/AU5922480A/en not_active Abandoned
- 1980-06-12 DE DE3022109A patent/DE3022109A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2055521A (en) | 1981-03-04 |
AR225041A1 (es) | 1982-02-15 |
US4290145A (en) | 1981-09-15 |
FR2458942A1 (fr) | 1981-01-02 |
YU150980A (en) | 1983-09-30 |
DE3022109A1 (de) | 1980-12-18 |
AU5922480A (en) | 1981-01-08 |
IT7923479A0 (it) | 1979-06-12 |
HU180145B (en) | 1983-02-28 |
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