GB9008089D0 - Frequency synthesizer - Google Patents
Frequency synthesizerInfo
- Publication number
- GB9008089D0 GB9008089D0 GBGB9008089.6A GB9008089A GB9008089D0 GB 9008089 D0 GB9008089 D0 GB 9008089D0 GB 9008089 A GB9008089 A GB 9008089A GB 9008089 D0 GB9008089 D0 GB 9008089D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency synthesizer
- synthesizer
- frequency
- 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.)
- Granted
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
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
-
- 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
- H03L7/08—Details of the phase-locked loop
-
- 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
-
- 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
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
- H03L7/185—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using a mixer in the loop
-
- 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
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8904725A FR2706099B1 (en) | 1989-04-11 | 1989-04-11 | Frequency synthesizer. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9008089D0 true GB9008089D0 (en) | 2010-01-13 |
| GB2466233A GB2466233A (en) | 2010-06-23 |
| GB2466233B GB2466233B (en) | 2010-11-17 |
Family
ID=9380572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9008089A Expired - Fee Related GB2466233B (en) | 1989-04-11 | 1990-04-10 | Frequency synthesizer |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE4011572C2 (en) |
| FR (1) | FR2706099B1 (en) |
| GB (1) | GB2466233B (en) |
| IT (1) | IT1246699B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3395529B2 (en) * | 1996-06-28 | 2003-04-14 | 三菱電機株式会社 | Frequency synthesizer |
| US8704562B2 (en) * | 2012-07-16 | 2014-04-22 | Nanowave Technologies Inc. | Ultra low phase noise signal source |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2875337A (en) * | 1956-04-27 | 1959-02-24 | Rca Corp | Oscillator control system |
| US2888562A (en) * | 1956-05-10 | 1959-05-26 | Rca Corp | Frequency control system |
| US2964714A (en) * | 1959-04-02 | 1960-12-13 | Jakubowics Edward | Automatic frequency control system |
| US3219944A (en) * | 1962-10-30 | 1965-11-23 | Krausz Robert | Reactance controlled transistor oscillator circuit arrangement |
| US4198604A (en) * | 1977-06-08 | 1980-04-15 | Hewlett-Packard Company | Heterodyne phase lock system |
| US4272729A (en) * | 1979-05-10 | 1981-06-09 | Harris Corporation | Automatic pretuning of a voltage controlled oscillator in a frequency synthesizer using successive approximation |
| FR2565440B1 (en) * | 1984-06-01 | 1986-09-05 | Adret Electronique | FREQUENCY SYNTHESIZER STAGE COMPRISING TWO PHASE LOCKED LOOPS, THE SECOND OF WHICH MULTIPLIES THE FREQUENCY OF THE FIRST BY A FACTOR NEAR THE UNIT. |
| US4792768A (en) * | 1987-11-06 | 1988-12-20 | Hewlett-Packard Company | Fast frequency settling signal generator utilizing a frequency locked-loop |
| GB2215540B (en) * | 1988-03-15 | 1992-07-22 | Stc Plc | Frequency synthesiser |
| GB2218869B (en) * | 1988-05-18 | 1992-01-22 | Stc Plc | Agile frequency source |
-
1989
- 1989-04-11 FR FR8904725A patent/FR2706099B1/en not_active Expired - Lifetime
-
1990
- 1990-03-29 IT IT06723090A patent/IT1246699B/en active IP Right Grant
- 1990-04-10 GB GB9008089A patent/GB2466233B/en not_active Expired - Fee Related
- 1990-04-10 DE DE4011572A patent/DE4011572C2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| IT9067230A0 (en) | 1990-03-29 |
| GB2466233B (en) | 2010-11-17 |
| DE4011572C2 (en) | 1999-08-26 |
| IT1246699B (en) | 1994-11-26 |
| IT9067230A1 (en) | 1991-09-29 |
| DE4011572A1 (en) | 1994-12-22 |
| GB2466233A (en) | 2010-06-23 |
| FR2706099B1 (en) | 1995-09-08 |
| FR2706099A1 (en) | 1994-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20100430 |