SE9703944L - Radio communication device and method - Google Patents
Radio communication device and methodInfo
- Publication number
- SE9703944L SE9703944L SE9703944A SE9703944A SE9703944L SE 9703944 L SE9703944 L SE 9703944L SE 9703944 A SE9703944 A SE 9703944A SE 9703944 A SE9703944 A SE 9703944A SE 9703944 L SE9703944 L SE 9703944L
- Authority
- SE
- Sweden
- Prior art keywords
- arrangement
- clock
- overtones
- oscillators
- radio communication
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
- H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2215/00—Reducing interference at the transmission system level
- H04B2215/064—Reduction of clock or synthesizer reference frequency harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Noise Elimination (AREA)
Abstract
The present invention relates to an arrangement (100) and a method respectively for suppressing clock overtones generated in a receiving arrangement of a radio communication system which receives signals within at least one frequency band and wherein the receiving arrangement comprises a number of oscillators including local oscillators and digital clocking means. The arrangement (100) comprises a phase locking arrangement (20) which includes a number of phase locking means (22; 23) for locking the oscillators in relation to each other so that all clock overtone frequencies become co-located and well defined within the frequency band(s). The arrangement further comprises a filtering arrangement (40) for filtering out said clock overtones, thus producing an output signal (I OUT/40) which is substantially free from clock overtones.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9703944A SE9703944L (en) | 1997-10-29 | 1997-10-29 | Radio communication device and method |
AU97714/98A AU9771498A (en) | 1997-10-29 | 1998-10-27 | Arrangement and method relating to radio communication |
CN 98812766 CN1283335A (en) | 1997-10-29 | 1998-10-27 | Arrangement and method relating to radio communication |
PCT/SE1998/001935 WO1999022456A2 (en) | 1997-10-29 | 1998-10-27 | Arrangement and method relating to radio communication |
EP98951878A EP1032979A2 (en) | 1997-10-29 | 1998-10-27 | Arrangement and method relating to radio communication |
JP2000518451A JP2001522158A (en) | 1997-10-29 | 1998-10-27 | Apparatus and method for wireless communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9703944A SE9703944L (en) | 1997-10-29 | 1997-10-29 | Radio communication device and method |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9703944D0 SE9703944D0 (en) | 1997-10-29 |
SE9703944L true SE9703944L (en) | 1999-04-30 |
Family
ID=20408782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9703944A SE9703944L (en) | 1997-10-29 | 1997-10-29 | Radio communication device and method |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1032979A2 (en) |
JP (1) | JP2001522158A (en) |
CN (1) | CN1283335A (en) |
AU (1) | AU9771498A (en) |
SE (1) | SE9703944L (en) |
WO (1) | WO1999022456A2 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7024221B2 (en) | 2001-01-12 | 2006-04-04 | Silicon Laboratories Inc. | Notch filter for DC offset reduction in radio-frequency apparatus and associated methods |
US6970717B2 (en) * | 2001-01-12 | 2005-11-29 | Silicon Laboratories Inc. | Digital architecture for radio-frequency apparatus and associated methods |
US6804497B2 (en) | 2001-01-12 | 2004-10-12 | Silicon Laboratories, Inc. | Partitioned radio-frequency apparatus and associated methods |
WO2002056488A2 (en) * | 2001-01-12 | 2002-07-18 | Silicon Lab Inc | Digital interface in radio-frequency apparatus and associated methods |
US7035611B2 (en) | 2001-01-12 | 2006-04-25 | Silicon Laboratories Inc. | Apparatus and method for front-end circuitry in radio-frequency apparatus |
US7031683B2 (en) | 2001-01-12 | 2006-04-18 | Silicon Laboratories Inc. | Apparatus and methods for calibrating signal-processing circuitry |
US7138858B2 (en) | 2001-01-12 | 2006-11-21 | Silicon Laboratories, Inc. | Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry |
US7158574B2 (en) | 2001-01-12 | 2007-01-02 | Silicon Laboratories Inc. | Digital interface in radio-frequency apparatus and associated methods |
US7177610B2 (en) | 2001-01-12 | 2007-02-13 | Silicon Laboratories Inc. | Calibrated low-noise current and voltage references and associated methods |
KR101031735B1 (en) | 2002-03-15 | 2011-04-29 | 실리콘 래버래토리즈 인코포레이티드 | Radio-frequency apparatus and associated methods |
EP1675286A1 (en) * | 2004-12-22 | 2006-06-28 | Siemens Aktiengesellschaft | Interference rejection in a receiver |
US8489040B2 (en) | 2010-02-18 | 2013-07-16 | Telefonaktiebolaget L M Ericsson (Publ) | Double clipped RF clock generation with spurious tone cancellation |
EP2600544B1 (en) * | 2011-11-30 | 2014-10-15 | Telefonaktiebolaget L M Ericsson (publ) | Technique for crosstalk reduction |
CN105306080B (en) * | 2015-11-30 | 2017-08-25 | 上海航天测控通信研究所 | A kind of spaceborne phase-locked receive of X frequency ranges |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995031860A1 (en) * | 1993-09-13 | 1995-11-23 | Analog Devices, Inc. | Digital-to-digital conversion using nonuniform sample rates |
-
1997
- 1997-10-29 SE SE9703944A patent/SE9703944L/en not_active Application Discontinuation
-
1998
- 1998-10-27 CN CN 98812766 patent/CN1283335A/en active Pending
- 1998-10-27 EP EP98951878A patent/EP1032979A2/en not_active Withdrawn
- 1998-10-27 JP JP2000518451A patent/JP2001522158A/en not_active Withdrawn
- 1998-10-27 WO PCT/SE1998/001935 patent/WO1999022456A2/en not_active Application Discontinuation
- 1998-10-27 AU AU97714/98A patent/AU9771498A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2001522158A (en) | 2001-11-13 |
SE9703944D0 (en) | 1997-10-29 |
WO1999022456A3 (en) | 1999-07-15 |
WO1999022456A2 (en) | 1999-05-06 |
EP1032979A2 (en) | 2000-09-06 |
CN1283335A (en) | 2001-02-07 |
AU9771498A (en) | 1999-05-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE9703944L (en) | Radio communication device and method | |
SE9703294D0 (en) | Radio communication device and method | |
NO996283L (en) | Multimode Straight Receiver | |
SE9504555D0 (en) | Method and apparatus for signal channel identification | |
EP1499029A3 (en) | Multimode wireless communication system | |
GB2363877A (en) | A method and apparatus for source synchronous transfers at frequencies including an odd fraction of a core frequency | |
DE69030794D1 (en) | Frequency synthesizer for a generator for generating signals of high purity as well as associated circuit elements such as VCO, PLL and signal generator | |
SE8604662L (en) | FREQUENCY SYNTHISIZATION DEVICE | |
EP0865158A3 (en) | Sampling frequency conversion apparatus and fractional frequency dividing apparatus for sampling frequency conversion | |
WO2000028340A8 (en) | Analog clock module | |
JPS5599851A (en) | Mobile data reception system | |
FI892405A0 (en) | FOERFARANDE FOER ALSTRING AV FREKVENSER I EN DIGITAL RADIOTELEFON. | |
NO20000574L (en) | Step controlled frequency synthesizer | |
AUPM587094A0 (en) | Microwave loop oscillators | |
EP1248378A4 (en) | Transmitter and radio communication terminal using the same | |
ES482039A1 (en) | Multifrequency generator | |
ATE71785T1 (en) | COUPLING FIELD FOR DIGITAL AUDIO SIGNALS. | |
DE69936064D1 (en) | JITTERARM PLL TAKE RECOVERY SYSTEM HIGH PHASE RESOLUTION | |
WO1999045666A3 (en) | Method for reducing interference, and synthesizer arrangement | |
KR100365130B1 (en) | IF conversion circuit of ground station for satellite communications | |
JPS5620355A (en) | Clock signal forming circuit | |
DE69734919D1 (en) | FSK RECEIVER | |
JPH09139989A (en) | Network clock synchronous circuit | |
CA2110860A1 (en) | Local Oscillation Frequency Synthesizer | |
RU2072732C1 (en) | RECEIVER |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |