[go: up one dir, main page]

AU1382199A - Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation - Google Patents

Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation

Info

Publication number
AU1382199A
AU1382199A AU13821/99A AU1382199A AU1382199A AU 1382199 A AU1382199 A AU 1382199A AU 13821/99 A AU13821/99 A AU 13821/99A AU 1382199 A AU1382199 A AU 1382199A AU 1382199 A AU1382199 A AU 1382199A
Authority
AU
Australia
Prior art keywords
methods including
offset compensation
narrow bandwidth
modulation systems
bandwidth signals
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU13821/99A
Inventor
Domenico Arpaia
Ronald D. Boesch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson Inc
Ericsson GE Mobile Communications Holding 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
Priority claimed from US08/971,502 external-priority patent/US6137826A/en
Priority claimed from US09/151,622 external-priority patent/US6100827A/en
Application filed by Ericsson Inc, Ericsson GE Mobile Communications Holding Inc filed Critical Ericsson Inc
Publication of AU1382199A publication Critical patent/AU1382199A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/71—Interference-related aspects the interference being narrowband interference
    • H04B1/7101—Interference-related aspects the interference being narrowband interference with estimation filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/487—Arrangements for providing information services, e.g. recorded voice services or time announcements
    • H04M3/493—Interactive information services, e.g. directory enquiries ; Arrangements therefor, e.g. interactive voice response [IVR] systems or voice portals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
    • H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
AU13821/99A 1997-11-17 1998-11-05 Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation Abandoned AU1382199A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US08971502 1997-11-17
US08/971,502 US6137826A (en) 1997-11-17 1997-11-17 Dual-mode modulation systems and methods including oversampling of narrow bandwidth signals
US09/151,996 US6535561B2 (en) 1997-11-17 1998-09-11 Dual-mode modulation systems and methods including oversampling of narrow bandwidth signals and DC offset compensation
US09151996 1998-09-11
US09/151,622 US6100827A (en) 1998-09-11 1998-09-11 Modulation systems and methods that compensate for DC offset introduced by the digital-to-analog converter and/or the low pass filter thereof
US09151622 1998-09-11
PCT/US1998/023566 WO1999026361A1 (en) 1997-11-17 1998-11-05 Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation

Publications (1)

Publication Number Publication Date
AU1382199A true AU1382199A (en) 1999-06-07

Family

ID=27387152

Family Applications (1)

Application Number Title Priority Date Filing Date
AU13821/99A Abandoned AU1382199A (en) 1997-11-17 1998-11-05 Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation

Country Status (7)

Country Link
JP (1) JP2002542633A (en)
CN (1) CN1150694C (en)
AU (1) AU1382199A (en)
BR (1) BR9814200A (en)
CA (1) CA2310220A1 (en)
FI (1) FI20001178A7 (en)
WO (1) WO1999026361A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020051301A (en) * 2000-12-22 2002-06-28 오길록 A digital orthogonal demodulator with controlled DC offset
DE10136741A1 (en) 2001-07-27 2002-10-31 Infineon Technologies Ag Circuit arrangement for regulating a DC signal component and mobile radio transmitter
US7349680B2 (en) * 2002-04-29 2008-03-25 Broadcom Corporation Method and system for using PSK sync word for fine tuning frequency adjustment
US7231193B2 (en) * 2004-04-13 2007-06-12 Skyworks Solutions, Inc. Direct current offset correction systems and methods
CN100444517C (en) * 2004-10-19 2008-12-17 联发科技股份有限公司 DC offset correction device
JP4628881B2 (en) * 2005-06-15 2011-02-09 ルネサスエレクトロニクス株式会社 Variable gain amplifier circuit, DC offset correction method thereof, and wireless receiver
US7391196B2 (en) * 2005-09-30 2008-06-24 Silicon Laboratories Inc. In system analysis and compensation for a digital PWM controller
US8279180B2 (en) * 2006-05-02 2012-10-02 Apple Inc. Multipoint touch surface controller
WO2008026760A1 (en) * 2006-09-01 2008-03-06 Panasonic Corporation Radio communication method and radio communication device
JP5190233B2 (en) * 2006-09-01 2013-04-24 パナソニック株式会社 Wireless communication device
CN102067457B (en) * 2008-04-28 2013-06-05 松下电器产业株式会社 Integrator, resonator, and oversampling A/D converter
CN101286961B (en) * 2008-05-26 2012-04-18 华为技术有限公司 Apparatus and method for calibrating DC offset of device output
JP5275196B2 (en) * 2009-09-29 2013-08-28 パナソニック株式会社 Integrator and oversampling A / D converter having the same
CN103941069A (en) * 2013-12-30 2014-07-23 上海大郡动力控制技术有限公司 Method for removing DC bias voltage in AC current sampling process
CN114754926B (en) * 2022-04-19 2025-07-25 辽宁机电职业技术学院 Balance wheel unbalance parameter measurement system and method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2636183B1 (en) * 1988-08-12 1990-10-12 Thiriet Jean Yves VARIABLE FLOW DIGITAL FILTER FOR PHASE MODULATOR
US5248970A (en) * 1991-11-08 1993-09-28 Crystal Semiconductor Corp. Offset calibration of a dac using a calibrated adc
FI96811C (en) * 1993-11-30 1996-08-26 Nokia Mobile Phones Ltd Method and circuitry for compensating the DC offset voltage in a D / A converter
TW294867B (en) * 1994-12-23 1997-01-01 Qualcomm Inc

Also Published As

Publication number Publication date
CA2310220A1 (en) 1999-05-27
HK1035454A1 (en) 2001-11-23
CN1150694C (en) 2004-05-19
BR9814200A (en) 2000-09-26
WO1999026361A1 (en) 1999-05-27
JP2002542633A (en) 2002-12-10
CN1286834A (en) 2001-03-07
FI20001178A7 (en) 2000-05-16

Similar Documents

Publication Publication Date Title
AU1382199A (en) Modulation systems and methods including oversampling of narrow bandwidth signals and dc offset compensation
AU5239399A (en) Antisense modulation of g-alpha-13 expression
AU5587499A (en) Antisense modulation of g-alpha-16 expression
AU9211598A (en) Systems and methods for replacing television signals
AU5468499A (en) 3-methylidenyl-2-indolinone modulators of protein kinase
AU4325199A (en) Antisense modulation of g-alpha-11 expression
AU2055997A (en) Method and system for the secure communication of data
AU3191299A (en) Antisense modulation of pecam-1
AU1532497A (en) Substituted phenyl compounds and derivatives thereof that modulate the activity of endothelin
AU5044393A (en) Stereoselective reduction of ketones
AU6759596A (en) Compensation of dispersion
AU5562999A (en) Methods of modulating of angiogenesis
AU2144400A (en) Antisense modulation of egr-1 expression
AU5599598A (en) Inhibitors of glycosyltransferases
AU4944297A (en) Modulation of apoptosis
AU2481797A (en) Monitoring system of multimedia communication terminal
AU2485397A (en) Modulation of LC132 (Opioid-like) receptor function
AU5222899A (en) Antisense modulation of inhibitor-kappa b kinase-alpha expression
AU5321199A (en) Antisense modulation of inhibitor-kappa b kinase-beta expression
AU4586496A (en) Packet communication system capable of rapidly confirming receipt of downward packet signals
AU1597700A (en) System and method for translating telecommunications signals of span interfaces
AU1600597A (en) Stabilisation of polyolefin-recyclates
AU1903799A (en) Compositions and methods for modulating the activity of fibroblast growth factor
AU3115100A (en) System and method for controlling the usage of digital objects
AU4402897A (en) System for communication of feelings

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase