FR2666464B1 - - Google Patents
Info
- Publication number
- FR2666464B1 FR2666464B1 FR9110807A FR9110807A FR2666464B1 FR 2666464 B1 FR2666464 B1 FR 2666464B1 FR 9110807 A FR9110807 A FR 9110807A FR 9110807 A FR9110807 A FR 9110807A FR 2666464 B1 FR2666464 B1 FR 2666464B1
- Authority
- FR
- France
- 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
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/576,342 US5070310A (en) | 1990-08-31 | 1990-08-31 | Multiple latched accumulator fractional N synthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2666464A1 FR2666464A1 (fr) | 1992-03-06 |
| FR2666464B1 true FR2666464B1 (US07993877-20110809-P00003.png) | 1997-02-21 |
Family
ID=24304043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9110807A Granted FR2666464A1 (fr) | 1990-08-31 | 1991-08-30 | Procede et appareil de synthese de frequence a n fractionnaire avec accumulateurs multiples a memorisation temporaire et application a un radioemetteur. |
Country Status (17)
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2748872B1 (fr) * | 1990-08-21 | 1998-11-27 | Thomson Trt Defense | Synthetiseur de frequence a boucle a verrouillage de phase a division fractionnaire multiple |
| US5111162A (en) * | 1991-05-03 | 1992-05-05 | Motorola, Inc. | Digital frequency synthesizer having AFC and modulation applied to frequency divider |
| US5166642A (en) * | 1992-02-18 | 1992-11-24 | Motorola, Inc. | Multiple accumulator fractional N synthesis with series recombination |
| US5347234A (en) * | 1993-03-26 | 1994-09-13 | International Business Machines Corp. | Digital voltage controlled oscillator |
| FI96255C (fi) * | 1993-04-05 | 1996-05-27 | Tapio Antero Saramaeki | Desimointisuodatin |
| AU6339594A (en) * | 1993-06-09 | 1994-12-15 | Alcatel N.V. | Synchronized clock |
| US5337024A (en) * | 1993-06-22 | 1994-08-09 | Rockwell International Corporation | Phase locked loop frequency modulator using fractional division |
| US5493700A (en) * | 1993-10-29 | 1996-02-20 | Motorola | Automatic frequency control apparatus |
| US5943613A (en) * | 1996-11-07 | 1999-08-24 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for reducing standby current in communications equipment |
| JP3132810B2 (ja) * | 1997-02-21 | 2001-02-05 | 松下電器産業株式会社 | 拡散型分数分周器 |
| US5777521A (en) * | 1997-08-12 | 1998-07-07 | Motorola Inc. | Parallel accumulator fractional-n frequency synthesizer |
| US6259318B1 (en) | 1999-05-28 | 2001-07-10 | Motorola, Inc. | Method for extending the liner range of an amplifier |
| US6490440B1 (en) | 1999-06-01 | 2002-12-03 | Motorola, Inc. | Digital transmitter circuit and method of operation |
| JP2001127632A (ja) | 1999-10-29 | 2001-05-11 | Matsushita Electric Ind Co Ltd | 周波数シンセサイザ及び発振周波数制御方法 |
| US6747987B1 (en) | 2000-02-29 | 2004-06-08 | Motorola, Inc. | Transmit modulation circuit and method of operating a transmitter |
| US6278333B1 (en) | 2000-02-29 | 2001-08-21 | Motorola, Inc. | Phase lock loop with dual state charge pump and method of operating the same |
| US6564039B1 (en) | 2000-02-29 | 2003-05-13 | Motorola, Inc. | Frequency generation circuit and method of operating a tranceiver |
| JP2001298363A (ja) | 2000-04-17 | 2001-10-26 | Matsushita Electric Ind Co Ltd | 周波数シンセサイザ装置とそれを用いた移動無線機 |
| EP1193876A1 (fr) * | 2000-09-29 | 2002-04-03 | Koninklijke Philips Electronics N.V. | Synthétiseur de fréquence et procédé de synthèse de fréquence à faible bruit |
| KR100346839B1 (ko) | 2000-10-10 | 2002-08-03 | 삼성전자 주식회사 | 시그마-델타 변조기를 이용한 분수-ｎ 주파수 합성 장치및 그 방법 |
| US6456164B1 (en) | 2001-03-05 | 2002-09-24 | Koninklijke Philips Electronics N.V. | Sigma delta fractional-N frequency divider with improved noise and spur performance |
| US7003049B2 (en) * | 2001-06-12 | 2006-02-21 | Rf Micro Devices, Inc. | Fractional-N digital modulation with analog IQ interface |
| US6448831B1 (en) | 2001-06-12 | 2002-09-10 | Rf Micro Devices, Inc. | True single-phase flip-flop |
| US6693468B2 (en) | 2001-06-12 | 2004-02-17 | Rf Micro Devices, Inc. | Fractional-N synthesizer with improved noise performance |
| US6385276B1 (en) | 2001-06-12 | 2002-05-07 | Rf Micro Devices, Inc. | Dual-modulus prescaler |
| US6779010B2 (en) | 2001-06-12 | 2004-08-17 | Rf Micro Devices, Inc. | Accumulator with programmable full-scale range |
| US6710951B1 (en) * | 2001-10-31 | 2004-03-23 | Western Digital Technologies, Inc. | Phase locked loop employing a fractional frequency synthesizer as a variable oscillator |
| JP3901607B2 (ja) * | 2002-07-23 | 2007-04-04 | 日本電気株式会社 | 信号処理装置及び非整数分周器並びにこれを用いたフラクショナルｎ−ｐｌｌシンセサイザ |
| US7437393B2 (en) | 2002-07-23 | 2008-10-14 | Nec Corporation | Signal processing apparatus, non-integer divider, and fractional N-PLL synthesizer using the same |
| JP2004104228A (ja) * | 2002-09-05 | 2004-04-02 | Matsushita Electric Ind Co Ltd | 信号処理装置および信号処理方法、デルタ・シグマ変調型分数分周ｐｌｌ周波数シンセサイザ、無線通信機器、デルタ・シグマ変調型ｄ／ａ変換器 |
| US6952125B2 (en) * | 2002-10-25 | 2005-10-04 | Gct Semiconductor, Inc. | System and method for suppressing noise in a phase-locked loop circuit |
| JP4064338B2 (ja) * | 2003-12-10 | 2008-03-19 | 松下電器産業株式会社 | デルタシグマ型分数分周ｐｌｌシンセサイザ |
| CN100530939C (zh) | 2004-03-19 | 2009-08-19 | 松下电器产业株式会社 | 调频装置、包括该调频装置的发送装置及无线通信机器 |
| US7482885B2 (en) * | 2005-12-29 | 2009-01-27 | Orca Systems, Inc. | Method of frequency synthesis for fast switching |
| US7519349B2 (en) * | 2006-02-17 | 2009-04-14 | Orca Systems, Inc. | Transceiver development in VHF/UHF/GSM/GPS/bluetooth/cordless telephones |
| US8443023B2 (en) * | 2007-03-13 | 2013-05-14 | Applied Micro Circuits Corporation | Frequency synthesis rational division |
| US8971455B2 (en) * | 2011-12-12 | 2015-03-03 | Texas Instruments Incorporated | Near-integer channel spur mitigation in a phase-locked loop |
| RU2616877C1 (ru) * | 2015-12-07 | 2017-04-18 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Цифровой генератор гармонических сигналов |
| RU2726833C1 (ru) * | 2019-10-17 | 2020-07-15 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Поволжский государственный технологический университет" | Цифровой вычислительный синтезатор с подавлением перекрестных помех |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3928813A (en) * | 1974-09-26 | 1975-12-23 | Hewlett Packard Co | Device for synthesizing frequencies which are rational multiples of a fundamental frequency |
| GB1560233A (en) * | 1977-02-02 | 1980-01-30 | Marconi Co Ltd | Frequency synthesisers |
| GB2026268B (en) * | 1978-07-22 | 1982-07-28 | Racal Communcations Equipment | Frequency synthesizers |
| GB2091960B (en) * | 1981-01-27 | 1985-06-19 | Int Standard Electric Corp | High speed frequency synthesizer |
| GB2140232B (en) * | 1983-05-17 | 1986-10-29 | Marconi Instruments Ltd | Frequency synthesisers |
| US4602225A (en) * | 1984-06-24 | 1986-07-22 | Hewlett Packard Company | Apparatus for frequency correction in a frequency synthesizer |
| GB2172760B (en) * | 1985-02-21 | 1988-05-18 | Plessey Co Plc | Fractional-n frequency |
| WO1986005045A1 (en) * | 1985-02-21 | 1986-08-28 | Plessey Overseas Limited | Improvement in or relating to synthesisers |
| DE3544371A1 (de) * | 1985-12-14 | 1987-06-19 | Wandel & Goltermann | Generator mit digitaler frequenzeinstellung |
| US4815018A (en) * | 1985-12-24 | 1989-03-21 | Hughes Aircraft Company | Spurless fractional divider direct digital frequency synthesizer and method |
| US4810977A (en) * | 1987-12-22 | 1989-03-07 | Hewlett-Packard Company | Frequency modulation in phase-locked loops |
| AU617455B2 (en) * | 1988-05-06 | 1991-11-28 | Alcatel N.V. | A digital frequency synthesizer |
| US4816774A (en) * | 1988-06-03 | 1989-03-28 | Motorola, Inc. | Frequency synthesizer with spur compensation |
| DE3826006C1 (US07993877-20110809-P00003.png) * | 1988-07-30 | 1989-10-12 | Wandel & Goltermann Gmbh & Co, 7412 Eningen, De | |
| US5055802A (en) * | 1990-04-30 | 1991-10-08 | Motorola, Inc. | Multiaccumulator sigma-delta fractional-n synthesis |
| US5055800A (en) * | 1990-04-30 | 1991-10-08 | Motorola, Inc. | Fractional n/m synthesis |
-
1990
- 1990-08-31 US US07/576,342 patent/US5070310A/en not_active Expired - Lifetime
-
1991
- 1991-08-01 DE DE19914192081 patent/DE4192081T/de active Pending
- 1991-08-01 BR BR919105891A patent/BR9105891A/pt not_active IP Right Cessation
- 1991-08-01 DE DE4192081A patent/DE4192081C2/de not_active Expired - Lifetime
- 1991-08-01 CA CA002066745A patent/CA2066745C/en not_active Expired - Fee Related
- 1991-08-01 KR KR1019920700995A patent/KR960001074B1/ko not_active IP Right Cessation
- 1991-08-01 JP JP3514278A patent/JP2844389B2/ja not_active Expired - Lifetime
- 1991-08-01 WO PCT/US1991/005455 patent/WO1992004766A1/en active IP Right Grant
- 1991-08-01 AT AT0900691A patent/AT402247B/de not_active IP Right Cessation
- 1991-08-01 ES ES09250023A patent/ES2088714B1/es not_active Expired - Fee Related
- 1991-08-01 AU AU83955/91A patent/AU632243B2/en not_active Expired
- 1991-08-28 MX MX9100853A patent/MX9100853A/es unknown
- 1991-08-30 FR FR9110807A patent/FR2666464A1/fr active Granted
- 1991-08-30 IT ITRM910653A patent/IT1250771B/it active IP Right Grant
- 1991-08-30 IE IE305991A patent/IE67289B1/en not_active IP Right Cessation
-
1992
- 1992-04-28 DK DK054892A patent/DK54892A/da not_active Application Discontinuation
- 1992-04-29 SE SE9201350A patent/SE469579B/sv not_active IP Right Cessation
- 1992-04-29 GB GB9209282A patent/GB2255680B/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DK54892D0 (da) | 1992-04-28 |
| ES2088714B1 (es) | 1997-02-16 |
| AU632243B2 (en) | 1992-12-17 |
| IE913059A1 (en) | 1992-03-11 |
| SE9201350D0 (sv) | 1992-04-29 |
| DE4192081T (US07993877-20110809-P00003.png) | 1992-08-27 |
| SE9201350L (sv) | 1992-06-22 |
| CA2066745C (en) | 1996-09-17 |
| FR2666464A1 (fr) | 1992-03-06 |
| GB2255680B (en) | 1994-08-03 |
| SE469579B (sv) | 1993-07-26 |
| DE4192081C2 (de) | 1996-02-01 |
| ATA900691A (de) | 1996-07-15 |
| AT402247B (de) | 1997-03-25 |
| KR920702570A (ko) | 1992-09-04 |
| KR960001074B1 (ko) | 1996-01-18 |
| ITRM910653A1 (it) | 1992-03-01 |
| ITRM910653A0 (it) | 1991-08-30 |
| IE67289B1 (en) | 1996-03-20 |
| JP2844389B2 (ja) | 1999-01-06 |
| US5070310A (en) | 1991-12-03 |
| MX9100853A (es) | 1992-04-01 |
| JPH05502154A (ja) | 1993-04-15 |
| GB9209282D0 (en) | 1992-07-08 |
| BR9105891A (pt) | 1992-10-13 |
| DK54892A (da) | 1992-04-28 |
| WO1992004766A1 (en) | 1992-03-19 |
| IT1250771B (it) | 1995-04-21 |
| CA2066745A1 (en) | 1992-03-01 |
| GB2255680A (en) | 1992-11-11 |
| AU8395591A (en) | 1992-03-30 |
| ES2088714A1 (es) | 1996-08-16 |
