JP4235175B2 - 振幅変調（ａｍ）信号を処理する方法および装置 - Google Patents

振幅変調（ａｍ）信号を処理する方法および装置 Download PDF

Info

Publication number
JP4235175B2
JP4235175B2 JP2004551451A JP2004551451A JP4235175B2 JP 4235175 B2 JP4235175 B2 JP 4235175B2 JP 2004551451 A JP2004551451 A JP 2004551451A JP 2004551451 A JP2004551451 A JP 2004551451A JP 4235175 B2 JP4235175 B2 JP 4235175B2
Authority
JP
Japan
Prior art keywords
filter
demodulator
post
signal
same
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.)
Expired - Fee Related
Application number
JP2004551451A
Other languages
English (en)
Japanese (ja)
Other versions
JP2006506850A5 (https=
JP2006506850A (ja
Inventor
ヘンドリックス、ジョン
バンクス、ブラッドリー
イー． シーバーグ、チャールズ
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.)
NXP USA Inc
Original Assignee
NXP USA 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 NXP USA Inc filed Critical NXP USA Inc
Publication of JP2006506850A publication Critical patent/JP2006506850A/ja
Publication of JP2006506850A5 publication Critical patent/JP2006506850A5/ja
Application granted granted Critical
Publication of JP4235175B2 publication Critical patent/JP4235175B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0294—Variable filters; Programmable filters
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Noise Elimination (AREA)
JP2004551451A 2002-11-14 2003-08-22 振幅変調（ａｍ）信号を処理する方法および装置 Expired - Fee Related JP4235175B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/294,511 US7092465B2 (en) 2002-11-14 2002-11-14 Method and apparatus for processing an amplitude modulated (AM) signal
PCT/US2003/027430 WO2004045095A1 (en) 2002-11-14 2003-08-22 Method and apparatus for processing an amplitude modulated (am) signal

Publications (3)

Publication Number Publication Date
JP2006506850A JP2006506850A (ja) 2006-02-23
JP2006506850A5 JP2006506850A5 (https=) 2006-07-27
JP4235175B2 true JP4235175B2 (ja) 2009-03-11

Family

ID=32296991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004551451A Expired - Fee Related JP4235175B2 (ja) 2002-11-14 2003-08-22 振幅変調（ａｍ）信号を処理する方法および装置

Country Status (6)

Country Link
US (1) US7092465B2 (https=)
JP (1) JP4235175B2 (https=)
KR (1) KR100988450B1 (https=)
CN (1) CN100365941C (https=)
AU (1) AU2003268370A1 (https=)
WO (1) WO2004045095A1 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7076233B2 (en) * 2003-03-28 2006-07-11 Sandbridge Technologies, Inc. AM receiver and demodulator
US7031886B1 (en) * 2004-12-14 2006-04-18 Synaptics Incorporated Methods and systems for detecting noise in a position sensor using minor shifts in sensing frequency
US8098722B2 (en) * 2005-03-29 2012-01-17 Qualcomm Incorporated Method and apparatus for equalization control
US7801311B2 (en) * 2005-09-15 2010-09-21 Freescale Semiconductor, Inc. Radio receiver with stereo decoder and method for use therewith
WO2008048873A2 (en) * 2006-10-13 2008-04-24 Continental Automotive Systems Us, Inc. Radio front end
US8352202B2 (en) * 2009-06-23 2013-01-08 Synaptics Incorporated System and method for detecting interfernce in a sensor device using phase shifting
US8812571B2 (en) * 2011-05-12 2014-08-19 Telefonaktiebolaget L M Ericsson (Publ) Spectrum agile radio
CN106094509B (zh) * 2016-06-22 2019-12-06 广东电网有限责任公司电力科学研究院 一种lcr滤波控制方法及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760287A (en) 1971-08-28 1973-09-18 Bell Telephone Labor Inc Digitally controllable variable active rc filter
DE3724604A1 (de) 1987-04-15 1988-12-01 H U C Elektronik Gmbh Anordnung zum filtern eines fm-ukw-empfangssignals
ES2083445T3 (es) * 1990-09-18 1996-04-16 Alcatel Nv Circuito diezmador de varios canales.
DE4319457C2 (de) 1993-06-11 1997-09-04 Blaupunkt Werke Gmbh Schaltungsanordnung zur Nachbarkanalerkennung und -unterdrückung in einem FM-Rundfunkempfänger
FR2735634B1 (fr) * 1995-06-14 1997-07-11 Alcatel Telspace Dispositif de correction de la caracteristique amplitude/frequence d'un signal ayant transite par un cable et egaliseur frequentiel correspondant
EP0786887A1 (fr) * 1996-01-29 1997-07-30 ALCATEL ITALIA S.p.A. Procédé de compensation des différences en temps de propagation de groupe entre les filtres analogiques d'un émetteur ou d'un récepteur de signaux en quadrature de phase
JPH10313260A (ja) * 1997-05-13 1998-11-24 Matsushita Electric Ind Co Ltd 受信装置
JP3576795B2 (ja) * 1998-03-13 2004-10-13 株式会社ケンウッド Ａｍ隣接妨害除去回路
US6591091B1 (en) * 1998-11-12 2003-07-08 Broadcom Corporation System and method for coarse/fine PLL adjustment
US7035328B2 (en) 1999-02-08 2006-04-25 Sunil Shukla Method of slewing a digital filter providing filter sections with matched gain

Also Published As

Publication number Publication date
US20040096014A1 (en) 2004-05-20
US7092465B2 (en) 2006-08-15
CN100365941C (zh) 2008-01-30
AU2003268370A1 (en) 2004-06-03
KR100988450B1 (ko) 2010-10-18
KR20050086615A (ko) 2005-08-30
CN1703835A (zh) 2005-11-30
JP2006506850A (ja) 2006-02-23
WO2004045095A1 (en) 2004-05-27

Similar Documents

Publication Publication Date Title
JP4232862B2 (ja) 雑音除去方法及び雑音除去装置
JP3122793B2 (ja) 同一チャネル干渉を低減する方法および非線形フィルタ
US8358994B2 (en) Mitigating radio receiver multipath noise
JP3380229B2 (ja) 多帯域ラジオ受信機用デジタル信号処理アーキテクチャー
US7689192B2 (en) Noise canceler and receiving apparatus using the same
US6957054B2 (en) Radio receiver having a variable bandwidth IF filter and method therefor
JP4235175B2 (ja) 振幅変調（ａｍ）信号を処理する方法および装置
JPH0629938A (ja) 時間離散型ステレオデコーダ
JP4445388B2 (ja) 異なる帯域幅を有する複数のデジタルフィルタを含む通信信号受信方法および関連する受信機
JPH07235861A (ja) 加重平均を使用したサンプリング周波数変換方法
JP2001502514A (ja) 非対称側波帯を有する変調キャリヤの受信
US7526254B2 (en) Digital radio front end with minimized IF signal path
CN105229928A (zh) 用于信号质量估计和控制的方法及电路
JP5133172B2 (ja) Ｆｍ送信回路及びオーバーサンプリング処理回路
EP1079523B1 (en) Switched bandwidth digital filters with slewing
JP3622014B2 (ja) デジタル信号処理付き放送受信機
JP3102630B2 (ja) 受信機におけるオーディオ帯域調整装置
JP4907435B2 (ja) アレーアンテナ装置およびその制御方法、ラジオ受信機、集積回路、プログラムおよび記録媒体
JP2012065038A (ja) Ｃｉｃフィルタ
JP6083322B2 (ja) チャンネルデバイダおよびこれを含む音声再生システム
JP2006129201A (ja) 無線受信装置
GB2344494A (en) Digital communications receiver with selectable filtering regime
JPH03270419A (ja) ラジオ受信機
JP2000106574A (ja) Ｃｗ信号再生方法及びｃｗフィルタ装置並びにｃｗ信号再生を行うプログラムを記録した記録媒体

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060522

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060522

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20081209

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20081212

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111219

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121219

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121219

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131219

Year of fee payment: 5

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees