DE3686124D1 - Signalgeneratoren. - Google Patents
Signalgeneratoren.Info
- Publication number
- DE3686124D1 DE3686124D1 DE8686308074T DE3686124T DE3686124D1 DE 3686124 D1 DE3686124 D1 DE 3686124D1 DE 8686308074 T DE8686308074 T DE 8686308074T DE 3686124 T DE3686124 T DE 3686124T DE 3686124 D1 DE3686124 D1 DE 3686124D1
- Authority
- DE
- Germany
- Prior art keywords
- signal generators
- generators
- signal
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/20—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a harmonic phase-locked loop, i.e. a loop which can be locked to one of a number of harmonically related frequencies applied to it
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8525878A GB2181911B (en) | 1985-10-21 | 1985-10-21 | Improvements in and relating to signal generators |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3686124D1 true DE3686124D1 (de) | 1992-08-27 |
DE3686124T2 DE3686124T2 (de) | 1993-03-11 |
Family
ID=10586985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686308074T Expired - Fee Related DE3686124T2 (de) | 1985-10-21 | 1986-10-17 | Signalgeneratoren. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4728906A (de) |
EP (1) | EP0220895B1 (de) |
DE (1) | DE3686124T2 (de) |
GB (1) | GB2181911B (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2236026A (en) * | 1989-09-13 | 1991-03-20 | Marconi Instruments Ltd | Swept frequency signal generating circuit |
US5243302A (en) * | 1991-03-29 | 1993-09-07 | International Business Machines Corporation | Voltage controlled oscillator with correction of tuning curve non-linearities |
US5179725A (en) * | 1991-03-29 | 1993-01-12 | International Business Machines | Voltage controlled oscillator with correction of tuning curve non-linearities |
US5146186A (en) * | 1991-05-13 | 1992-09-08 | Microsource, Inc. | Programmable-step, high-resolution frequency synthesizer which substantially eliminates spurious frequencies without adversely affecting phase noise |
GB2274340B (en) * | 1991-06-06 | 1995-10-18 | Wiltron Measurements Ltd | Improved signal generator and testing apparatus |
US5371480A (en) * | 1992-12-04 | 1994-12-06 | Telefonaktiebolaget L M Ericsson | Step controlled signal generator |
JPH0715236A (ja) * | 1993-06-18 | 1995-01-17 | Mitsubishi Electric Corp | 周波数シンセサイザ |
US5440275A (en) * | 1994-07-29 | 1995-08-08 | T.N. Technologies Inc. | Marker sweep linearization system and method |
US6271731B2 (en) * | 1997-04-15 | 2001-08-07 | Ericsson Inc. | Control circuit for programmable frequency synthesizer |
DE19716776A1 (de) * | 1997-04-22 | 1998-10-29 | Daimler Benz Aerospace Ag | Verfahren und Anordnung zum Einrasten eines YIG-Oszillators |
US6686803B1 (en) * | 2000-07-10 | 2004-02-03 | Silicon Laboratories, Inc. | Integrated circuit incorporating circuitry for determining which of at least two possible frequencies is present on an externally provided reference signal and method therefor |
US6831523B1 (en) | 2000-07-10 | 2004-12-14 | Silicon Laboratories Inc. | Auto-detection between referenceless and reference clock mode of operation |
US6700537B2 (en) * | 2000-08-31 | 2004-03-02 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Communications | Method for calibrating a wideband direction finding system |
US7082177B2 (en) * | 2001-11-28 | 2006-07-25 | Agere Systems Inc. | Methods and devices for improving the switching times of PLLs |
US7155190B2 (en) * | 2004-02-19 | 2006-12-26 | Tektronix, Inc. | DDS-PLL method for frequency sweep |
EP1657822A1 (de) * | 2004-11-10 | 2006-05-17 | Alcatel | Frequenzrastergenerator für Frequenzsynthesizer |
US7312664B2 (en) * | 2005-08-24 | 2007-12-25 | Avago Technologies General Ip Pte Ltd | Methods and apparatuses for testing a voltage-controlled oscillator (VCO) to verify operation across supply voltage and/or temperature |
US20070057737A1 (en) * | 2005-09-14 | 2007-03-15 | Freescale Semiconductor, Inc. | Compensation for modulation distortion |
US7583154B1 (en) | 2005-09-30 | 2009-09-01 | Cypress Semiconductor Corporation | Voltage controlled oscillator |
US7589595B2 (en) * | 2006-08-18 | 2009-09-15 | Agilent Technologies, Inc. | Distributing frequency references |
KR101095958B1 (ko) | 2009-07-07 | 2011-12-19 | 엘아이지넥스원 주식회사 | 주파수 조정방법 및 이를 적용한 스펙트럼 분석기 |
US9128496B2 (en) * | 2011-10-26 | 2015-09-08 | The United States Of America As Represented By Secretary Of The Navy | Auto-ranging for time domain extraction of perturbations to sinusoidal oscillation |
US10663572B2 (en) * | 2018-06-19 | 2020-05-26 | Qualcomm Incorporated | Programmable multi-mode digital-to-analog converter (DAC) for wideband applications |
CN113625209B (zh) * | 2020-05-09 | 2024-02-27 | 上海联影医疗科技股份有限公司 | 磁共振系统频率漂移量的确定方法、装置和计算机设备 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3427561A (en) * | 1966-04-22 | 1969-02-11 | Technology Uk | Frequency synthesisers with stepwise changeable output frequencies |
US3641434A (en) * | 1968-10-10 | 1972-02-08 | Bendix Corp | Wide-band crystal-controlled transceiver with remote digital tuning |
US3619802A (en) * | 1969-05-20 | 1971-11-09 | Dieter R Lohrman | Frequency synthesizer |
US3723898A (en) * | 1972-03-31 | 1973-03-27 | Bendix Corp | Frequency synthesizer |
US3902132A (en) * | 1973-02-05 | 1975-08-26 | Fluke Mfg Co John | Closed loop variable frequency signal generator |
US3916334A (en) * | 1974-04-24 | 1975-10-28 | Eduard Herman Hugenholtz | Frequency synthesizer using spectrum shift interpolation |
US3931586A (en) * | 1975-03-21 | 1976-01-06 | The United States Of America As Represented By The Secretary Of The Navy | Scanning oscillator stabilization |
US4001714A (en) * | 1975-11-12 | 1977-01-04 | Motorola, Inc. | Search and confirm frequency synthesizer |
US4038612A (en) * | 1976-05-21 | 1977-07-26 | International Telephone And Telegraph Corporation | Swept oscillator automatic linearizer |
JPS5656034A (en) * | 1979-10-15 | 1981-05-16 | Advantest Corp | Sweep signal generator |
FR2483704A1 (fr) * | 1980-06-03 | 1981-12-04 | Thomson Csf | Dispositif de prepositionnement de frequence pour synthetiseur indirect de frequence et synthetiseur comportant un tel dispositif |
US4513448A (en) * | 1983-08-12 | 1985-04-23 | The United States Of America As Represented By The Secretary Of The Army | Low power radio synthesizer with harmonic identification feature |
US4584539A (en) * | 1984-11-28 | 1986-04-22 | General Dynamics Pomona Division | Frequency-agile, multi-channel, microwave frequency synthesizer |
-
1985
- 1985-10-21 GB GB8525878A patent/GB2181911B/en not_active Expired
-
1986
- 1986-10-15 US US06/919,191 patent/US4728906A/en not_active Expired - Fee Related
- 1986-10-17 EP EP86308074A patent/EP0220895B1/de not_active Expired
- 1986-10-17 DE DE8686308074T patent/DE3686124T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0220895A3 (en) | 1988-09-14 |
GB2181911B (en) | 1989-09-20 |
GB8525878D0 (en) | 1985-11-27 |
EP0220895A2 (de) | 1987-05-06 |
DE3686124T2 (de) | 1993-03-11 |
US4728906A (en) | 1988-03-01 |
GB2181911A (en) | 1987-04-29 |
EP0220895B1 (de) | 1992-07-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |