ATE261207T1 - Modulator unter verwendung digitaler synthese - Google Patents
Modulator unter verwendung digitaler syntheseInfo
- Publication number
- ATE261207T1 ATE261207T1 AT01938325T AT01938325T ATE261207T1 AT E261207 T1 ATE261207 T1 AT E261207T1 AT 01938325 T AT01938325 T AT 01938325T AT 01938325 T AT01938325 T AT 01938325T AT E261207 T1 ATE261207 T1 AT E261207T1
- Authority
- AT
- Austria
- Prior art keywords
- frequency modulation
- accentuation
- filter
- pll
- accentuated
- Prior art date
Links
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000003786 synthesis reaction Methods 0.000 title 1
- 230000001944 accentuation Effects 0.000 abstract 5
- 101150066718 FMOD gene Proteins 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 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
- H03C3/0991—Modifications of modulator for regulating the mean frequency using a phase locked loop including calibration means or calibration methods
-
- 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
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/12—Modulator circuits; Transmitter circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Transmitters (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Holo Graphy (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0007059A FR2809890B1 (fr) | 2000-05-31 | 2000-05-31 | Synthetiseur a modulation numerique |
PCT/FR2001/001606 WO2001093415A1 (fr) | 2000-05-31 | 2001-05-23 | Synthetiseur a modulation numerique |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE261207T1 true ATE261207T1 (de) | 2004-03-15 |
Family
ID=8850887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT01938325T ATE261207T1 (de) | 2000-05-31 | 2001-05-23 | Modulator unter verwendung digitaler synthese |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040041638A1 (de) |
EP (1) | EP1290783B1 (de) |
AT (1) | ATE261207T1 (de) |
AU (1) | AU2001264014A1 (de) |
DE (1) | DE60102237D1 (de) |
FR (1) | FR2809890B1 (de) |
WO (1) | WO2001093415A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002363140A1 (en) * | 2001-10-31 | 2003-05-12 | Sirf Technologies, Inc. | Fractional-r- frequency synthesizer |
US7190747B2 (en) * | 2002-03-25 | 2007-03-13 | Bae Systems Information And Electronic Systems Integration Inc. | Frequency mismatch compensation for multiuser detection |
US7430265B2 (en) | 2002-06-27 | 2008-09-30 | Infineon Technologies Ag | Circuit arrangement provided with a phase-locked loop and transmitter-receiver with said circuit arrangement |
DE10243382A1 (de) * | 2002-06-27 | 2004-04-08 | Infineon Technologies Ag | Schaltungsanordnung mit Phasenregelkreis und Sendeempfänger mit der Schaltungsanordnung |
JP4282998B2 (ja) | 2003-01-08 | 2009-06-24 | パナソニック株式会社 | 変調器及びその補正方法 |
US7912145B2 (en) * | 2003-12-15 | 2011-03-22 | Marvell World Trade Ltd. | Filter for a modulator and methods thereof |
US20050215216A1 (en) * | 2004-03-25 | 2005-09-29 | Ess Technology, Inc. | Sigma delta modulator loop configured to compensate amplifier noise affecting signals in the AM radio frequency band |
US7477686B2 (en) * | 2004-09-01 | 2009-01-13 | Intel Corporation | Apparatus and method of adaptive filter |
US7382201B1 (en) * | 2007-03-23 | 2008-06-03 | Mediatek Inc. | Signal generating apparatus and method thereof |
US20080232443A1 (en) * | 2007-03-23 | 2008-09-25 | Tai-Yuan Yu | Signal generating apparatus |
US7991102B2 (en) * | 2007-09-20 | 2011-08-02 | Mediatek Inc. | Signal generating apparatus and method thereof |
US8081936B2 (en) * | 2009-01-22 | 2011-12-20 | Mediatek Inc. | Method for tuning a digital compensation filter within a transmitter, and associated digital compensation filter and associated calibration circuit |
CN102545886B (zh) * | 2010-12-23 | 2014-02-05 | 博通集成电路(上海)有限公司 | Gfsk调制器、gfsk调制方法及发射机 |
TWI524705B (zh) * | 2013-05-15 | 2016-03-01 | 瑞昱半導體股份有限公司 | 通訊系統校正方法以及通訊系統校正裝置 |
CN115425969B (zh) * | 2022-09-14 | 2023-09-08 | 深圳市华智芯联科技有限公司 | 锁相环路的补偿滤波器设计方法、装置及计算机设备 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6008703A (en) * | 1997-01-31 | 1999-12-28 | Massachusetts Institute Of Technology | Digital compensation for wideband modulation of a phase locked loop frequency synthesizer |
US6047029A (en) * | 1997-09-16 | 2000-04-04 | Telefonaktiebolaget Lm Ericsson | Post-filtered delta sigma for controlling a phase locked loop modulator |
US5952895A (en) * | 1998-02-23 | 1999-09-14 | Tropian, Inc. | Direct digital synthesis of precise, stable angle modulated RF signal |
EP0961412B1 (de) * | 1998-05-29 | 2004-10-06 | Motorola Semiconducteurs S.A. | Frequenzsynthetisierer |
-
2000
- 2000-05-31 FR FR0007059A patent/FR2809890B1/fr not_active Expired - Fee Related
-
2001
- 2001-05-23 EP EP01938325A patent/EP1290783B1/de not_active Expired - Lifetime
- 2001-05-23 WO PCT/FR2001/001606 patent/WO2001093415A1/fr active IP Right Grant
- 2001-05-23 DE DE60102237T patent/DE60102237D1/de not_active Expired - Lifetime
- 2001-05-23 AU AU2001264014A patent/AU2001264014A1/en not_active Abandoned
- 2001-05-23 AT AT01938325T patent/ATE261207T1/de not_active IP Right Cessation
- 2001-05-23 US US10/296,862 patent/US20040041638A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1290783A1 (de) | 2003-03-12 |
WO2001093415A1 (fr) | 2001-12-06 |
US20040041638A1 (en) | 2004-03-04 |
DE60102237D1 (de) | 2004-04-08 |
AU2001264014A1 (en) | 2001-12-11 |
EP1290783B1 (de) | 2004-03-03 |
FR2809890B1 (fr) | 2002-08-16 |
FR2809890A1 (fr) | 2001-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |