[go: up one dir, main page]

ATE260521T1 - Wellenformgenerator zur verwendung in quadraturmodulation (i/q) - Google Patents

Wellenformgenerator zur verwendung in quadraturmodulation (i/q)

Info

Publication number
ATE260521T1
ATE260521T1 AT00403442T AT00403442T ATE260521T1 AT E260521 T1 ATE260521 T1 AT E260521T1 AT 00403442 T AT00403442 T AT 00403442T AT 00403442 T AT00403442 T AT 00403442T AT E260521 T1 ATE260521 T1 AT E260521T1
Authority
AT
Austria
Prior art keywords
waveform generator
phase
controlled oscillator
quadrature
producing
Prior art date
Application number
AT00403442T
Other languages
English (en)
Inventor
Nadim Khlat
Original Assignee
Motorola Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ATE260521T1 publication Critical patent/ATE260521T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/365—Modulation using digital generation of the modulated carrier (not including modulation of a digitally generated carrier)
    • 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
    • H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals
    • 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
    • H04L27/2092—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner with digital generation of the modulated carrier (does not include the modulation of a digitally generated carrier)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transceivers (AREA)
AT00403442T 2000-12-07 2000-12-07 Wellenformgenerator zur verwendung in quadraturmodulation (i/q) ATE260521T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00403442A EP1213889B1 (de) 2000-12-07 2000-12-07 Wellenformgenerator zur Verwendung in Quadraturmodulation (I/Q)

Publications (1)

Publication Number Publication Date
ATE260521T1 true ATE260521T1 (de) 2004-03-15

Family

ID=8173972

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00403442T ATE260521T1 (de) 2000-12-07 2000-12-07 Wellenformgenerator zur verwendung in quadraturmodulation (i/q)

Country Status (7)

Country Link
US (1) US7117234B2 (de)
EP (2) EP1376968B1 (de)
JP (1) JP2004515970A (de)
AT (1) ATE260521T1 (de)
AU (1) AU2002223650A1 (de)
DE (2) DE60008551T2 (de)
WO (1) WO2002047344A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8355472B2 (en) * 2010-04-28 2013-01-15 Motorola Solutions, Inc. Frequency deviation error compensation in an MLSE receiver
US8742864B2 (en) 2010-11-04 2014-06-03 Qualcomm Incorporated Method and digital circuit for generating a waveform from stored digital values
KR102268110B1 (ko) * 2014-08-05 2021-06-22 삼성전자주식회사 데이터를 변조하는 방법 및 장치 및 기록 매체

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486846A (en) * 1982-06-28 1984-12-04 Motorola Inc. Numerically controlled oscillator using quadrant replication and function decomposition
US5084681A (en) * 1990-08-03 1992-01-28 Hewlett-Packard Company Digital synthesizer with phase memory
US5303412A (en) * 1992-03-13 1994-04-12 Massachusetts Institute Of Technology Composite direct digital synthesizer
US5361046A (en) * 1992-12-22 1994-11-01 Hughes Aircraft Company Modulator having fractional sample/symbol time
EP0782063A1 (de) * 1995-12-26 1997-07-02 Lsi Logic Corporation Rauschverminderung in digitalen Frequenzsynthetisierern
US5856766A (en) * 1997-06-30 1999-01-05 Motorola Inc. Communication device with a frequency compensating synthesizer and method of providing same
US6308048B1 (en) * 1997-11-19 2001-10-23 Ericsson Inc. Simplified reference frequency distribution in a mobile phone
US6208875B1 (en) * 1998-04-08 2001-03-27 Conexant Systems, Inc. RF architecture for cellular dual-band telephones
US7046738B1 (en) * 2000-02-08 2006-05-16 Ericsson Inc. 8-PSK transmit filtering using reduced look up tables
DE60010512T2 (de) * 2000-12-20 2004-09-23 Motorola, Inc., Schaumburg Quadraturmodulator mit programmierbarer Pulsformung

Also Published As

Publication number Publication date
AU2002223650A1 (en) 2002-06-18
JP2004515970A (ja) 2004-05-27
US20040019620A1 (en) 2004-01-29
WO2002047344A2 (en) 2002-06-13
DE60030337D1 (de) 2006-10-05
DE60030337T2 (de) 2007-08-16
US7117234B2 (en) 2006-10-03
EP1213889B1 (de) 2004-02-25
WO2002047344A3 (en) 2002-10-10
EP1213889A1 (de) 2002-06-12
DE60008551T2 (de) 2004-08-05
EP1376968A1 (de) 2004-01-02
EP1376968B1 (de) 2006-08-23
DE60008551D1 (de) 2004-04-01

Similar Documents

Publication Publication Date Title
JP2008507862A5 (de)
EP0975196A3 (de) Funk-Kommunikation mit mehreren Modulationsarten
MXPA04007180A (es) Transceptor que utiliza un mezclador para rechazo de armonicas.
EP1235403A3 (de) Kombinerte Frequenz- und Amplitudenmodulation
EP0729238A3 (de) Sender und Sendeempfänger
EP1161044A3 (de) Quadraturmodulator
WO1998028852A3 (en) Continuous phase modulator, comprising a direct digital synthesizer followed by a phase locked loop
KR960701544A (ko) 다중-변조 통신 시스템(multiple-modulation communication system)
EP2278703A3 (de) Phasen- und Amplitudenmodulator in einem Sender
TW200711312A (en) Method and apparatus for frequency synthesis in direct-conversion transmitters
EP0668673A4 (de) Kode-multiplex sender/empfänger.
FR2807252B1 (fr) Dispositif de production d'un signal radiofrequence module en phase et en amplitude
EP1737124A3 (de) Modulator und Verfahren zum Erzeugen eines modulierten Signals
WO2004012343A3 (en) Radio transceiver architectures and methods
WO2002009270A3 (en) System and apparatus for a direct conversion receiver and transmitter
CA2198337A1 (en) Frequency spreading clock modulation
EP0786873A3 (de) Funksendeempfänger mit sequentiell arbeitendem Verstärker
EP0936574A3 (de) Ic-Karte und Ic-Kartensystem
ATE260521T1 (de) Wellenformgenerator zur verwendung in quadraturmodulation (i/q)
ATE260000T1 (de) Direktumsetz-sende-empfänger
EP0977368A3 (de) Funksendeempfänger und Schaltung
EP1401127A3 (de) Modulationsvorrichtung
DE60215976D1 (de) Sender/Empfänger mit einer von einem Direkt-digital-Synthesizer getriebenen Phasenregelschleife mit mehreren Zuständen
WO2008082882A3 (en) Method and device for generating constant envelope modulation using a quadrature modulator
WO2002037666A3 (en) Iq modulator

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties