EE9900415A - IQ-modulaator ja sellega seotud meetod - Google Patents
IQ-modulaator ja sellega seotud meetodInfo
- Publication number
- EE9900415A EE9900415A EEP199900415A EEP9900415A EE9900415A EE 9900415 A EE9900415 A EE 9900415A EE P199900415 A EEP199900415 A EE P199900415A EE P9900415 A EEP9900415 A EE P9900415A EE 9900415 A EE9900415 A EE 9900415A
- Authority
- EE
- Estonia
- Prior art keywords
- modulator
- related method
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
- H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
- H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/822,244 US6259747B1 (en) | 1997-03-20 | 1997-03-20 | IQ modulator, and associated method |
PCT/SE1998/000483 WO1998042106A2 (en) | 1997-03-20 | 1998-03-17 | Iq modulator, and associated method |
Publications (1)
Publication Number | Publication Date |
---|---|
EE9900415A true EE9900415A (et) | 2000-04-17 |
Family
ID=25235553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EEP199900415A EE9900415A (et) | 1997-03-20 | 1998-03-17 | IQ-modulaator ja sellega seotud meetod |
Country Status (8)
Country | Link |
---|---|
US (1) | US6259747B1 (et) |
EP (1) | EP0968597A2 (et) |
CN (1) | CN1135804C (et) |
AU (1) | AU6530098A (et) |
BR (1) | BR9808391A (et) |
EE (1) | EE9900415A (et) |
HK (1) | HK1028506A1 (et) |
WO (1) | WO1998042106A2 (et) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7764130B2 (en) | 1999-01-22 | 2010-07-27 | Multigig Inc. | Electronic circuitry |
JP3428490B2 (ja) * | 1999-04-22 | 2003-07-22 | 岩崎通信機株式会社 | ディジタル情報の無線伝送方法及び装置 |
AU2001256482A1 (en) | 2000-05-11 | 2001-11-26 | Multigig Limited | Electronic pulse generator and oscillator |
JP3588040B2 (ja) * | 2000-07-26 | 2004-11-10 | 松下電器産業株式会社 | 通信端末装置および基地局装置 |
US6975686B1 (en) * | 2000-10-31 | 2005-12-13 | Telefonaktiebolaget L.M. Ericsson | IQ modulation systems and methods that use separate phase and amplitude signal paths |
US6657980B2 (en) | 2001-04-12 | 2003-12-02 | Qualcomm Incorporated | Method and apparatus for scheduling packet data transmissions in a wireless communication system |
EP1303074B1 (en) * | 2001-10-15 | 2015-04-08 | Broadcom Corporation | Symbol synchronisation in EDGE handsets |
US7167528B2 (en) * | 2002-06-11 | 2007-01-23 | General Instrument Corporation | Modulation system for modulating data onto a carrier signal with offsets to compensate for doppler effect and allow a frequency synthesizing system to make steps equal to channel bandwidth |
TWI253820B (en) * | 2003-09-02 | 2006-04-21 | Novatek Microelectronics Corp | Non-coherent frequency shift keying (FSK) transmitter using a digital interpolation synthesizer |
JP4128150B2 (ja) * | 2004-03-22 | 2008-07-30 | 株式会社日立製作所 | 任意波形発生器を用いたラジオ波送信回路およびそれを用いた核磁気共鳴装置 |
US7609779B2 (en) * | 2006-02-27 | 2009-10-27 | Freescale Semiconductor, Inc. | RF transmitter with interleaved IQ modulation |
WO2008121857A1 (en) | 2007-03-29 | 2008-10-09 | Multigig Inc. | Wave reversing system and method for a rotary traveling wave oscillator |
US8913978B2 (en) * | 2007-04-09 | 2014-12-16 | Analog Devices, Inc. | RTWO-based down converter |
FR2926422B1 (fr) * | 2008-01-15 | 2013-08-16 | Commissariat Energie Atomique | Systeme d'emission radiofrequence |
US8742857B2 (en) | 2008-05-15 | 2014-06-03 | Analog Devices, Inc. | Inductance enhanced rotary traveling wave oscillator circuit and method |
US8487710B2 (en) | 2011-12-12 | 2013-07-16 | Analog Devices, Inc. | RTWO-based pulse width modulator |
US8581668B2 (en) | 2011-12-20 | 2013-11-12 | Analog Devices, Inc. | Oscillator regeneration device |
US9397761B2 (en) * | 2013-05-17 | 2016-07-19 | Crfs Limited | RF signal generating device |
JP6454596B2 (ja) * | 2015-05-13 | 2019-01-16 | 株式会社日立製作所 | 無線機 |
US9419657B1 (en) * | 2015-09-22 | 2016-08-16 | Intel IP Corporation | Hybrid I/Q and polar transmitter |
US9565043B1 (en) | 2016-03-16 | 2017-02-07 | Intel IP Corporation | Hybrid I-Q polar transmitter with quadrature local oscillator (LO) phase correction |
US9800440B1 (en) * | 2016-06-28 | 2017-10-24 | Intel IP Corporation | Transmitter (TX) dead-time modulation |
US9979445B2 (en) * | 2016-07-15 | 2018-05-22 | Futurewei Technologies, Inc. | Digital to analog converter apparatus, system, and method with quantization noise that is independent of an input signal |
US10277233B2 (en) | 2016-10-07 | 2019-04-30 | Analog Devices, Inc. | Apparatus and methods for frequency tuning of rotary traveling wave oscillators |
US10312922B2 (en) | 2016-10-07 | 2019-06-04 | Analog Devices, Inc. | Apparatus and methods for rotary traveling wave oscillators |
US11527992B2 (en) | 2019-09-19 | 2022-12-13 | Analog Devices International Unlimited Company | Rotary traveling wave oscillators with distributed stubs |
US11264949B2 (en) | 2020-06-10 | 2022-03-01 | Analog Devices International Unlimited Company | Apparatus and methods for rotary traveling wave oscillators |
US11539353B2 (en) | 2021-02-02 | 2022-12-27 | Analog Devices International Unlimited Company | RTWO-based frequency multiplier |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0626352B2 (ja) * | 1987-11-20 | 1994-04-06 | 日本電気エンジニアリング株式会社 | プログラマブル変調回路 |
US5374903A (en) | 1988-04-22 | 1994-12-20 | Hughes Aircraft Company | Generation of wideband linear frequency modulation signals |
JPH03245628A (ja) * | 1990-02-23 | 1991-11-01 | Matsushita Electric Ind Co Ltd | 時分割多重アクセス装置の端末装置 |
DK0560071T3 (da) * | 1990-06-05 | 2000-10-09 | Siemens Metering Ltd | Fremgangsmåde til signalering |
NL9001360A (nl) * | 1990-06-15 | 1992-01-02 | Philips Nv | Zender bevattende een elektronische inrichting voor het opwekken van een gemoduleerd draaggolfsignaal. |
DE69328406T2 (de) * | 1992-11-20 | 2000-09-14 | Ntt Mobile Communications Network Inc., Tokio/Tokyo | Frequenzdiversitysender und -Empfänger |
US5351016A (en) * | 1993-05-28 | 1994-09-27 | Ericsson Ge Mobile Communications Inc. | Adaptively self-correcting modulation system and method |
EP0787386A2 (en) * | 1994-10-19 | 1997-08-06 | Power Spectrum Technology Ltd. | Sectorized communication system and methods useful therefor |
US5563535A (en) | 1994-11-29 | 1996-10-08 | Microunity Systems Engineering, Inc. | Direct digital frequency synthesizer using sigma-delta techniques |
EP0782063A1 (en) | 1995-12-26 | 1997-07-02 | Lsi Logic Corporation | Noise reduction in digital frequency synthesizers |
-
1997
- 1997-03-20 US US08/822,244 patent/US6259747B1/en not_active Expired - Lifetime
-
1998
- 1998-03-17 WO PCT/SE1998/000483 patent/WO1998042106A2/en not_active Application Discontinuation
- 1998-03-17 BR BR9808391-0A patent/BR9808391A/pt not_active IP Right Cessation
- 1998-03-17 EP EP98911324A patent/EP0968597A2/en not_active Withdrawn
- 1998-03-17 EE EEP199900415A patent/EE9900415A/et unknown
- 1998-03-17 AU AU65300/98A patent/AU6530098A/en not_active Abandoned
- 1998-03-17 CN CNB988052903A patent/CN1135804C/zh not_active Expired - Fee Related
-
2000
- 2000-11-30 HK HK00107697A patent/HK1028506A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1998042106A3 (en) | 1998-12-17 |
WO1998042106A2 (en) | 1998-09-24 |
CN1135804C (zh) | 2004-01-21 |
BR9808391A (pt) | 2000-05-23 |
US6259747B1 (en) | 2001-07-10 |
AU6530098A (en) | 1998-10-12 |
CN1257628A (zh) | 2000-06-21 |
EP0968597A2 (en) | 2000-01-05 |
HK1028506A1 (en) | 2001-02-16 |
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