ITTO910511A0 - - Google Patents
Info
- Publication number
- ITTO910511A0 ITTO910511A0 IT91TO511A ITTO910511A ITTO910511A0 IT TO910511 A0 ITTO910511 A0 IT TO910511A0 IT 91TO511 A IT91TO511 A IT 91TO511A IT TO910511 A ITTO910511 A IT TO910511A IT TO910511 A0 ITTO910511 A0 IT TO910511A0
- Authority
- IT
- Italy
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
- H03K23/68—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a base which is a non-integer
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
- H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
- H03K23/667—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses by switching the base during a counting cycle
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- 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
- H03L7/197—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 numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
- H03L7/1974—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 numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
- H03L7/1976—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 numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
- H03L2207/10—Indirect frequency synthesis using a frequency multiplier in the phase-locked loop or in the reference signal path
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9010512A FR2748872B1 (fr) | 1990-08-21 | 1990-08-21 | Synthetiseur de frequence a boucle a verrouillage de phase a division fractionnaire multiple |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITTO910511A0 true ITTO910511A0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-07-02 |
| ITTO910511A1 ITTO910511A1 (it) | 1993-01-02 |
| IT1277984B1 IT1277984B1 (it) | 1997-11-12 |
Family
ID=9399759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT91TO000511A IT1277984B1 (it) | 1990-08-21 | 1991-07-02 | Sintetizzatore di frequenze con anello di aggancio di fase |
Country Status (8)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2785109B1 (fr) | 1998-10-23 | 2001-01-19 | Thomson Csf | Compensation du retard du convertisseur analogique numerique dans les modulateurs sigma delta |
| FR2793972B1 (fr) | 1999-05-21 | 2001-08-10 | Thomson Csf | Synthetiseur numerique a division coherente |
| US6977492B2 (en) * | 2002-07-10 | 2005-12-20 | Marvell World Trade Ltd. | Output regulator |
| FR2880219B1 (fr) * | 2004-12-23 | 2007-02-23 | Thales Sa | Procede et systeme de radiocommunication numerique, notamment pour les stations sol mobiles |
| KR100869227B1 (ko) * | 2007-04-04 | 2008-11-18 | 삼성전자주식회사 | 프리 캘리브레이션 모드를 가진 위상동기루프 회로 및위상동기루프 회로의 프리 캘리브레이션 방법 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1382417A (en) * | 1971-03-16 | 1975-01-29 | Goulder Mikron Ltd | Digital processing system |
| GB1560233A (en) * | 1977-02-02 | 1980-01-30 | Marconi Co Ltd | Frequency synthesisers |
| FR2426358A1 (fr) * | 1978-05-17 | 1979-12-14 | Trt Telecom Radio Electr | Synthetiseur de frequence a division directe a pas apres virgule |
| JPS5718129A (en) * | 1980-07-07 | 1982-01-29 | Nec Corp | Pulse swallow frequency divider |
| FR2511564A1 (fr) * | 1981-08-17 | 1983-02-18 | Thomson Csf | Synthetiseur de frequences a division fractionnaire, utilise pour une modulation angulaire numerique |
| GB2140232B (en) * | 1983-05-17 | 1986-10-29 | Marconi Instruments Ltd | Frequency synthesisers |
| US4573176A (en) * | 1983-11-18 | 1986-02-25 | Rca Corporation | Fractional frequency divider |
| GB2150775A (en) * | 1983-12-02 | 1985-07-03 | Plessey Co Plc | Frequency synthesiser |
| FR2557401B1 (fr) * | 1983-12-27 | 1986-01-24 | Thomson Csf | Synthetiseur de frequences a division fractionnaire, a faible gigue de phase et utilisation de ce synthetiseur |
| GB2173659B (en) * | 1985-02-06 | 1988-06-08 | Plessey Co Plc | Frequency synthesisers |
| DE3671815D1 (de) * | 1985-02-21 | 1990-07-12 | Plessey Overseas | Sich auf synthesierer beziehende verbesserungen. |
| US4816774A (en) * | 1988-06-03 | 1989-03-28 | Motorola, Inc. | Frequency synthesizer with spur compensation |
| US4918403A (en) * | 1988-06-03 | 1990-04-17 | Motorola, Inc. | Frequency synthesizer with spur compensation |
| US5070310A (en) * | 1990-08-31 | 1991-12-03 | Motorola, Inc. | Multiple latched accumulator fractional N synthesis |
| US5122767A (en) * | 1991-01-10 | 1992-06-16 | Northern Telecom Limited | Saw device tapped delay lines |
-
1990
- 1990-08-21 FR FR9010512A patent/FR2748872B1/fr not_active Expired - Lifetime
-
1991
- 1991-07-02 US US07/731,405 patent/US6191657B1/en not_active Expired - Lifetime
- 1991-07-02 IT IT91TO000511A patent/IT1277984B1/it active IP Right Grant
- 1991-07-08 ES ES09101592A patent/ES2105919B1/es not_active Expired - Lifetime
- 1991-08-19 GB GB9117896A patent/GB2319371B/en not_active Expired - Lifetime
- 1991-08-20 BE BE9100758A patent/BE1010980A3/fr not_active IP Right Cessation
- 1991-08-20 DE DE4127385A patent/DE4127385C2/de not_active Expired - Lifetime
- 1991-08-20 CA CA002049582A patent/CA2049582A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| GB2319371A (en) | 1998-05-20 |
| US6191657B1 (en) | 2001-02-20 |
| ITTO910511A1 (it) | 1993-01-02 |
| ES2105919B1 (es) | 1998-05-16 |
| FR2748872A1 (fr) | 1997-11-21 |
| DE4127385A1 (de) | 1998-02-19 |
| DE4127385C2 (de) | 2000-12-21 |
| ES2105919A1 (es) | 1997-10-16 |
| CA2049582A1 (en) | 1997-10-12 |
| BE1010980A3 (fr) | 1999-03-02 |
| GB9117896D0 (en) | 1997-11-19 |
| FR2748872B1 (fr) | 1998-11-27 |
| IT1277984B1 (it) | 1997-11-12 |
| GB2319371B (en) | 1998-09-09 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted | ||
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950630 |