NO20023665L - Direkteomformingsmodulasjon med redusert lokaloscillatorlekkasje - Google Patents
Direkteomformingsmodulasjon med redusert lokaloscillatorlekkasjeInfo
- Publication number
- NO20023665L NO20023665L NO20023665A NO20023665A NO20023665L NO 20023665 L NO20023665 L NO 20023665L NO 20023665 A NO20023665 A NO 20023665A NO 20023665 A NO20023665 A NO 20023665A NO 20023665 L NO20023665 L NO 20023665L
- Authority
- NO
- Norway
- Prior art keywords
- local oscillator
- direct transform
- oscillator leakage
- reduced local
- transform modulation
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
- H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
- H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Complex Calculations (AREA)
- Networks Using Active Elements (AREA)
- Superheterodyne Receivers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17986100P | 2000-02-02 | 2000-02-02 | |
PCT/US2001/003041 WO2001058103A2 (fr) | 2000-02-02 | 2001-01-31 | Modulation de transposition directe a fuite d'oscillateur local reduite |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20023665D0 NO20023665D0 (no) | 2002-08-01 |
NO20023665L true NO20023665L (no) | 2002-09-06 |
Family
ID=22658289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20023665A NO20023665L (no) | 2000-02-02 | 2002-08-01 | Direkteomformingsmodulasjon med redusert lokaloscillatorlekkasje |
Country Status (6)
Country | Link |
---|---|
US (1) | US20010041546A1 (fr) |
EP (1) | EP1258119A2 (fr) |
AU (1) | AU2001233137A1 (fr) |
NO (1) | NO20023665L (fr) |
TW (1) | TW508901B (fr) |
WO (1) | WO2001058103A2 (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10142248A1 (de) * | 2001-08-29 | 2003-01-30 | Infineon Technologies Ag | Sendeanordnung, insbesondere für den Mobilfunk |
US6882834B1 (en) * | 2002-04-26 | 2005-04-19 | Analog Devices, Inc. | Direct conversion receiver apparatus |
CA2501860A1 (fr) * | 2002-10-15 | 2004-04-29 | Sirific Wireless Corporation | Circuit d'ajustage de courant continu destine a abaisser une radiofrequence (rf) |
JP2006515498A (ja) * | 2003-01-06 | 2006-05-25 | シリフィック ワイヤレス コーポレイション | マルチモードモジュレータ及びトランスミッタ |
US7206557B2 (en) * | 2003-01-08 | 2007-04-17 | Lucent Technologies Inc. | Method and apparatus for suppressing local oscillator leakage in a wireless transmitter |
EP1623498A1 (fr) * | 2003-05-07 | 2006-02-08 | Koninklijke Philips Electronics N.V. | Circuits d'entree de recepteur a faible consommation et dispositifs architectures autour de ceux-ci |
US7480343B2 (en) * | 2003-07-16 | 2009-01-20 | Ericsson Technology Licensing Ab | Transceiver architecture with reduced VCO-pulling sensitivity |
KR100570712B1 (ko) * | 2004-05-17 | 2006-04-12 | 전자부품연구원 | 높은 반송파 억압비를 가지는 2의 n제곱차 저조파 주파수변조기 및 이를 이용한 직접 변환 송신기 |
US20090028216A1 (en) * | 2007-07-26 | 2009-01-29 | M/A-Com, Inc. | Method and apparatus for generating a radio frequency pulse |
US8331897B2 (en) * | 2008-04-07 | 2012-12-11 | Qualcomm Incorporated | Highly linear embedded filtering passive mixer |
US8238846B2 (en) * | 2009-12-18 | 2012-08-07 | Motorola Solutions, Inc. | Multi carrier leakage tuning by error power detection |
US8964892B2 (en) | 2011-08-23 | 2015-02-24 | Motorola Solutions, Inc. | Apparatus and method for operating a transmitter |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2643966C2 (de) * | 1976-09-29 | 1978-09-28 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Einrichtung zur zweifachen Frequenzumsetzung für Nachrichtenübertragungssysteme |
CH671856A5 (fr) * | 1986-09-05 | 1989-09-29 | Ascom Radiocom Ag | |
GB9017418D0 (en) * | 1990-08-08 | 1990-09-19 | Gen Electric Co Plc | Half frequency mixer |
US6144846A (en) * | 1997-12-31 | 2000-11-07 | Motorola, Inc. | Frequency translation circuit and method of translating |
-
2001
- 2001-01-29 TW TW090101709A patent/TW508901B/zh not_active IP Right Cessation
- 2001-01-31 WO PCT/US2001/003041 patent/WO2001058103A2/fr not_active Application Discontinuation
- 2001-01-31 AU AU2001233137A patent/AU2001233137A1/en not_active Abandoned
- 2001-01-31 EP EP01905235A patent/EP1258119A2/fr not_active Withdrawn
- 2001-01-31 US US09/774,916 patent/US20010041546A1/en not_active Abandoned
-
2002
- 2002-08-01 NO NO20023665A patent/NO20023665L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
TW508901B (en) | 2002-11-01 |
NO20023665D0 (no) | 2002-08-01 |
WO2001058103A2 (fr) | 2001-08-09 |
AU2001233137A1 (en) | 2001-08-14 |
WO2001058103A3 (fr) | 2002-02-14 |
EP1258119A2 (fr) | 2002-11-20 |
US20010041546A1 (en) | 2001-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |