BE1001969A6 - Numerieke modulator. - Google Patents
Numerieke modulator. Download PDFInfo
- Publication number
- BE1001969A6 BE1001969A6 BE8800516A BE8800516A BE1001969A6 BE 1001969 A6 BE1001969 A6 BE 1001969A6 BE 8800516 A BE8800516 A BE 8800516A BE 8800516 A BE8800516 A BE 8800516A BE 1001969 A6 BE1001969 A6 BE 1001969A6
- Authority
- BE
- Belgium
- Prior art keywords
- frequency
- numerical
- value
- fractional
- equal
- Prior art date
Links
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 18
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 18
- 102100023882 Endoribonuclease ZC3H12A Human genes 0.000 description 3
- 101710112715 Endoribonuclease ZC3H12A Proteins 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 3
- QGVYYLZOAMMKAH-UHFFFAOYSA-N pegnivacogin Chemical compound COCCOC(=O)NCCCCC(NC(=O)OCCOC)C(=O)NCCCCCCOP(=O)(O)O QGVYYLZOAMMKAH-UHFFFAOYSA-N 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 108700012361 REG2 Proteins 0.000 description 2
- 101150108637 REG2 gene Proteins 0.000 description 2
- 101100120298 Rattus norvegicus Flot1 gene Proteins 0.000 description 2
- 101100412403 Rattus norvegicus Reg3b gene Proteins 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0975—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation in the phase locked loop at components other than the divider, the voltage controlled oscillator or the reference clock
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
- H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
- H03C3/0933—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop using fractional frequency division in the feedback loop of the phase locked loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point 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
- H03L7/18—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
- H03L7/1978—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 using a cycle or pulse removing circuit
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE8800516A BE1001969A6 (nl) | 1988-05-06 | 1988-05-06 | Numerieke modulator. |
| AU33297/89A AU616506B2 (en) | 1988-05-06 | 1989-04-24 | Digital modulator |
| AU33298/89A AU617455B2 (en) | 1988-05-06 | 1989-04-24 | A digital frequency synthesizer |
| EP89201120A EP0340870A3 (en) | 1988-05-06 | 1989-05-01 | Digital frequency synthesizer and digital modulator using same |
| FI892082A FI892082A (fi) | 1988-05-06 | 1989-05-02 | Digitalisk modulator. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE8800516A BE1001969A6 (nl) | 1988-05-06 | 1988-05-06 | Numerieke modulator. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE1001969A6 true BE1001969A6 (nl) | 1990-04-24 |
Family
ID=3883400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE8800516A BE1001969A6 (nl) | 1988-05-06 | 1988-05-06 | Numerieke modulator. |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU616506B2 (fi) |
| BE (1) | BE1001969A6 (fi) |
| FI (1) | FI892082A (fi) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5495505A (en) * | 1990-12-20 | 1996-02-27 | Motorola, Inc. | Increased frequency resolution in a synthesizer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1560233A (en) * | 1977-02-02 | 1980-01-30 | Marconi Co Ltd | Frequency synthesisers |
| FR2511564A1 (fr) * | 1981-08-17 | 1983-02-18 | Thomson Csf | Synthetiseur de frequences a division fractionnaire, utilise pour une modulation angulaire numerique |
| GB2173659B (en) * | 1985-02-06 | 1988-06-08 | Plessey Co Plc | Frequency synthesisers |
-
1988
- 1988-05-06 BE BE8800516A patent/BE1001969A6/nl not_active IP Right Cessation
-
1989
- 1989-04-24 AU AU33297/89A patent/AU616506B2/en not_active Ceased
- 1989-05-02 FI FI892082A patent/FI892082A/fi not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| AU3329789A (en) | 1989-11-09 |
| FI892082A (fi) | 1989-11-07 |
| AU616506B2 (en) | 1991-10-31 |
| FI892082A0 (fi) | 1989-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0538903B1 (en) | Frequency synthesis using frequency controlled carrier modulated with PLL feedback signal | |
| US6483388B2 (en) | Direct digital frequency synthesizer and a hybrid frequency synthesizer combining a direct digital frequency synthesizer and a phase locked loop | |
| US6917317B2 (en) | Signal processing device, signal processing method, delta-sigma modulation type fractional division PLL frequency synthesizer, radio communication device, delta-sigma modulation type D/A converter | |
| US5065408A (en) | Fractional-division synthesizer for a voice/data communications systems | |
| US4573176A (en) | Fractional frequency divider | |
| KR920702571A (ko) | 감소된 나머지 에러를 갖는 래치형 누산기 분수 n 음성 합성 장치 | |
| EP0347085A3 (en) | Integrated circuit | |
| US6690215B2 (en) | Sigma-delta-based frequency synthesis | |
| NL9001360A (nl) | Zender bevattende een elektronische inrichting voor het opwekken van een gemoduleerd draaggolfsignaal. | |
| US3895311A (en) | Direct programmed differential synthesizers | |
| EP2009797A1 (en) | Frequency synthesizer, wireless communication system, and semiconductor device | |
| US5481230A (en) | Phase modulator having individually placed edges | |
| JP4900753B2 (ja) | 周波数シンセサイザおよび低雑音周波数合成方法 | |
| AU617455B2 (en) | A digital frequency synthesizer | |
| BE1001969A6 (nl) | Numerieke modulator. | |
| KR960036338A (ko) | 가변 분주비를 설정하는 장치 및 방법과 이를 활용한 장치 | |
| US6700945B2 (en) | Phase lock loop circuit | |
| US20060133559A1 (en) | Programmable fractional N phase locked loop architecture and method | |
| CN210201813U (zh) | 数字调制器以及频率合成器 | |
| NL193039C (nl) | Inrichting voor digitale modulatie onder gebruikmaking van samenwerkende pulsoptelling en -aftrekking. | |
| US20080048733A1 (en) | Decimal frequency synthesizer | |
| JP3344790B2 (ja) | 周波数シンセサイザ | |
| WO2012093424A1 (ja) | デルタシグマ変調型分数分周ｐｌｌ周波数シンセサイザおよびそれを備えた無線通信装置 | |
| EP0948138A1 (en) | Frequency synthesiser | |
| KR970055570A (ko) | 혼합형 주파수 합성기 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: BELL TELEPHONE MANUFACTURING CY N.V. Effective date: 19940506 |