JP2002542633A - 狭帯域信号のオーバーサンプリングおよび直流オフセット補償を含む変調システムおよび方法 - Google Patents

狭帯域信号のオーバーサンプリングおよび直流オフセット補償を含む変調システムおよび方法

Info

Publication number
JP2002542633A
JP2002542633A JP2000521604A JP2000521604A JP2002542633A JP 2002542633 A JP2002542633 A JP 2002542633A JP 2000521604 A JP2000521604 A JP 2000521604A JP 2000521604 A JP2000521604 A JP 2000521604A JP 2002542633 A JP2002542633 A JP 2002542633A
Authority
JP
Japan
Prior art keywords
signal
offset
digital
analog
dual mode
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.)
Pending
Application number
JP2000521604A
Other languages
English (en)
Japanese (ja)
Inventor
ボエシェ、ロナルド、ディ
アッパイア、ドメニコ
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
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 filed Critical Ericsson Inc
Publication of JP2002542633A publication Critical patent/JP2002542633A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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)
  • Analogue/Digital Conversion (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2000521604A 1997-11-17 1998-11-05 狭帯域信号のオーバーサンプリングおよび直流オフセット補償を含む変調システムおよび方法 Pending JP2002542633A (ja)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US08/971,502 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
US09/151,622 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
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
US09/151,996 1998-09-11
US09/151,622 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
JP2002542633A true JP2002542633A (ja) 2002-12-10

Family

ID=27387152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000521604A Pending JP2002542633A (ja) 1997-11-17 1998-11-05 狭帯域信号のオーバーサンプリングおよび直流オフセット補償を含む変調システムおよび方法

Country Status (8)

Country Link
JP (1) JP2002542633A (fi)
CN (1) CN1150694C (fi)
AU (1) AU1382199A (fi)
BR (1) BR9814200A (fi)
CA (1) CA2310220A1 (fi)
FI (1) FI20001178A (fi)
HK (1) HK1035454A1 (fi)
WO (1) WO1999026361A1 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016201129A (ja) * 2006-05-02 2016-12-01 アップル インコーポレイテッド マルチポイントタッチ表面コントローラ

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020051301A (ko) * 2000-12-22 2002-06-28 오길록 직류전원 오프셋이 제어된 디지털 직교 복조 장치
DE10136741A1 (de) 2001-07-27 2002-10-31 Infineon Technologies Ag Schaltungsanordnung zur Regelung eines Signal-Gleichanteils und Mobilfunksender
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 (zh) * 2004-10-19 2008-12-17 联发科技股份有限公司 直流偏移校正装置
JP4628881B2 (ja) * 2005-06-15 2011-02-09 ルネサスエレクトロニクス株式会社 可変利得増幅回路及びそのｄｃオフセット補正方法並びに無線受信装置
US7391196B2 (en) * 2005-09-30 2008-06-24 Silicon Laboratories Inc. In system analysis and compensation for a digital PWM controller
JP5190233B2 (ja) * 2006-09-01 2013-04-24 パナソニック株式会社 無線通信装置
WO2008026760A1 (fr) * 2006-09-01 2008-03-06 Panasonic Corporation Procede et dispositif de communication radio
CN102067457B (zh) * 2008-04-28 2013-06-05 松下电器产业株式会社 积分器、谐振器以及过采样a/d转换器
CN101286961B (zh) * 2008-05-26 2012-04-18 华为技术有限公司 对设备输出的直流偏移进行校准的装置和方法
JP5275196B2 (ja) 2009-09-29 2013-08-28 パナソニック株式会社 積分器およびそれを備えたオーバーサンプリングａ／ｄ変換器
CN103941069A (zh) * 2013-12-30 2014-07-23 上海大郡动力控制技术有限公司 一种交流电流采样过程中直流偏置电压去除方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2636183B1 (fr) * 1988-08-12 1990-10-12 Thiriet Jean Yves Filtre numerique a debit variable pour modulateur de phase
US5248970A (en) * 1991-11-08 1993-09-28 Crystal Semiconductor Corp. Offset calibration of a dac using a calibrated adc
FI96811C (fi) * 1993-11-30 1996-08-26 Nokia Mobile Phones Ltd Menetelmä ja piirijärjestely D/A-muuntimen DC-erojännitteen kompensoimiseksi
TW294867B (fi) * 1994-12-23 1997-01-01 Qualcomm Inc

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016201129A (ja) * 2006-05-02 2016-12-01 アップル インコーポレイテッド マルチポイントタッチ表面コントローラ
JP2018110041A (ja) * 2006-05-02 2018-07-12 アップル インコーポレイテッド マルチポイントタッチ表面コントローラ
US10915207B2 (en) 2006-05-02 2021-02-09 Apple Inc. Multipoint touch surface controller
US11853518B2 (en) 2006-05-02 2023-12-26 Apple Inc. Multipoint touch surface controller

Also Published As

Publication number Publication date
HK1035454A1 (en) 2001-11-23
FI20001178A (fi) 2000-05-16
CN1150694C (zh) 2004-05-19
AU1382199A (en) 1999-06-07
CA2310220A1 (en) 1999-05-27
CN1286834A (zh) 2001-03-07
BR9814200A (pt) 2000-09-26
WO1999026361A1 (en) 1999-05-27

Similar Documents

Publication Publication Date Title
US6535561B2 (en) Dual-mode modulation systems and methods including oversampling of narrow bandwidth signals and DC offset compensation
US20080261650A1 (en) Radio integrated circuit with integrated power amplifier
US9455737B1 (en) Delta-sigma analog-to-digital converter (ADC) with time-interleaved (TI) or two-step successive approximation register (SAR) quantizer
Eloranta et al. A Multimode Transmitter in 0.13$\mu\hbox {m} $ CMOS Using Direct-Digital RF Modulator
JP2002542633A (ja) 狭帯域信号のオーバーサンプリングおよび直流オフセット補償を含む変調システムおよび方法
KR101121694B1 (ko) 송신 회로, 무선 통신 장치, 및 송신 회로의 타이밍 조정 방법
US6321075B1 (en) Hardware-efficient transceiver with delta-sigma digital-to-analog converter
JP4804458B2 (ja) ２点変調型位相変調装置、ポーラ変調送信装置、無線送信装置及び無線通信装置
US6100827A (en) Modulation systems and methods that compensate for DC offset introduced by the digital-to-analog converter and/or the low pass filter thereof
US7173980B2 (en) Complex-IF digital receiver
US6748025B1 (en) Direct conversion delta-sigma receiver
US20040137862A1 (en) Direct-conversion transmitter circuit and transceiver system
US20060022861A1 (en) Semiconductor integrated circuit for communication including analog-to-digital conversion circuit
JP2003520549A (ja) 受信機帯域幅内の送信信号スペクトラムを打消す方法および装置
EP1532730A2 (en) Sequential dc offset correction for amplifier chain
WO2006118317A1 (en) Polar modulation transmitter circuit and communications device
US7755524B2 (en) Method for performing a digital to analog conversion of a digital signal, and corresponding electronic device
US6683905B1 (en) Dual-mode receiver
US20050117663A1 (en) Chip set for digital audio satellite radio receivers
JP2003506955A (ja) ハイブリッド帯域およびベースバンドデルタ−シグマ変調器
JP2003527043A (ja) 直交装置におけるミスマッチの補償
JP3628463B2 (ja) デルタシグマ型ａ／ｄ変換器
JP2005072632A (ja) Ａ／ｄ変換回路を内蔵した通信用半導体集積回路
KR100626960B1 (ko) 협대역폭 신호의 오버샘플링 및 ｄｃ 오프셋 보상을 갖는 변조 시스템과 방법
JP4541060B2 (ja) Ａ／ｄ変換回路を内蔵した半導体集積回路および通信用半導体集積回路

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051104

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20060320

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060328

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20070821

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20071121

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20071204

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20080401