KR100988450B1 - 진폭 변조된(am) 신호를 프로세싱하기 위한 방법 및 장치 - Google Patents

진폭 변조된(am) 신호를 프로세싱하기 위한 방법 및 장치 Download PDF

Info

Publication number
KR100988450B1
KR100988450B1 KR1020057008608A KR20057008608A KR100988450B1 KR 100988450 B1 KR100988450 B1 KR 100988450B1 KR 1020057008608 A KR1020057008608 A KR 1020057008608A KR 20057008608 A KR20057008608 A KR 20057008608A KR 100988450 B1 KR100988450 B1 KR 100988450B1
Authority
KR
South Korea
Prior art keywords
filter
demodulator
signal
filters
post
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
KR1020057008608A
Other languages
English (en)
Korean (ko)
Other versions
KR20050086615A (ko
Inventor
존 헨드릭스
브래들리 뱅크스
찰스 이. 시버그
Original Assignee
프리스케일 세미컨덕터, 인크.
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 프리스케일 세미컨덕터, 인크. filed Critical 프리스케일 세미컨덕터, 인크.
Publication of KR20050086615A publication Critical patent/KR20050086615A/ko
Application granted granted Critical
Publication of KR100988450B1 publication Critical patent/KR100988450B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00Networks using digital techniques
    • H03H17/02Frequency selective networks
    • H03H17/0294Variable filters; Programmable filters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers
    • H04B1/10Means associated with receiver for limiting or suppressing noise or interference
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers
    • H04B1/10Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B1/1036Means 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)
KR1020057008608A 2002-11-14 2003-08-22 진폭 변조된(am) 신호를 프로세싱하기 위한 방법 및 장치 Expired - Fee Related KR100988450B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/294,511 2002-11-14
US10/294,511 US7092465B2 (en) 2002-11-14 2002-11-14 Method and apparatus for processing an amplitude modulated (AM) signal

Publications (2)

Publication Number Publication Date
KR20050086615A KR20050086615A (ko) 2005-08-30
KR100988450B1 true KR100988450B1 (ko) 2010-10-18

Family

ID=32296991

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020057008608A Expired - Fee Related KR100988450B1 (ko) 2002-11-14 2003-08-22 진폭 변조된(am) 신호를 프로세싱하기 위한 방법 및 장치

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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155862A (en) 1987-04-15 1992-10-13 H.U.C. Elektronik Gmbh Fm receiver having variable if filter
KR19980087007A (ko) * 1997-05-13 1998-12-05 모리시타 요이치 무선 수신 장치
US20010008430A1 (en) * 1998-11-12 2001-07-19 Broadcom Corporation System and method for providing a low power receiver design
US20020136289A1 (en) 1999-02-08 2002-09-26 Sunil Shukla Method of slewing a digital filter providing filter sections with matched gain

Family Cites Families (6)

* 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
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
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155862A (en) 1987-04-15 1992-10-13 H.U.C. Elektronik Gmbh Fm receiver having variable if filter
KR19980087007A (ko) * 1997-05-13 1998-12-05 모리시타 요이치 무선 수신 장치
US20010008430A1 (en) * 1998-11-12 2001-07-19 Broadcom Corporation System and method for providing a low power receiver design
US20020136289A1 (en) 1999-02-08 2002-09-26 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
KR20050086615A (ko) 2005-08-30
CN1703835A (zh) 2005-11-30
JP2006506850A (ja) 2006-02-23
JP4235175B2 (ja) 2009-03-11
WO2004045095A1 (en) 2004-05-27

Similar Documents

Publication Publication Date Title
US6993311B2 (en) Radio receiver having an adaptive equalizer and method therefor
US6058148A (en) Digital processing radio receiver with adaptive bandwidth control
US5926513A (en) Receiver with analog and digital channel selectivity
US6658245B2 (en) Radio receiver having a dynamic bandwidth filter and method therefor
US5995565A (en) Co-channel interference reduction
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
JP4232862B2 (ja) 雑音除去方法及び雑音除去装置
JPH08506711A (ja) 適応型帯域幅受信機
US6957054B2 (en) Radio receiver having a variable bandwidth IF filter and method therefor
KR100988450B1 (ko) 진폭 변조된(am) 신호를 프로세싱하기 위한 방법 및 장치
JPH0629938A (ja) 時間離散型ステレオデコーダ
JP3486849B2 (ja) 入力信号濾波用選択フィルタ
Lin et al. A new flexible filter bank for low complexity spectrum sensing in cognitive radios
JP2001024619A (ja) Ofdm信号受信機
EP0783812B1 (en) Method and apparatus for transmultiplexer a multi-channel information signal
US6393450B1 (en) Switched bandwidth digital filters with slewing
US8081942B1 (en) Method and apparatus for muting based on a constant modulus indication
JP3422484B2 (ja) 復調回路及びそれを有する受信装置
EP1211802B1 (en) Filter with tunable bandwidth using two frequency translators
JP2006129201A (ja) 無線受信装置

Legal Events

Date Code Title Description
PA0105 International application

St.27 status event code: A-0-1-A10-A15-nap-PA0105

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

A201 Request for examination
E13-X000 Pre-grant limitation requested

St.27 status event code: A-2-3-E10-E13-lim-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

R18-X000 Changes to party contact information recorded

St.27 status event code: A-3-3-R10-R18-oth-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-3-3-R10-R18-oth-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U12-oth-PR1002

Fee payment year number: 1

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

FPAY Annual fee payment

Payment date: 20130927

Year of fee payment: 4

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 4

FPAY Annual fee payment

Payment date: 20140925

Year of fee payment: 5

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 5

FPAY Annual fee payment

Payment date: 20150924

Year of fee payment: 6

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 6

FPAY Annual fee payment

Payment date: 20160927

Year of fee payment: 7

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 7

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R13-asn-PN2301

St.27 status event code: A-5-5-R10-R11-asn-PN2301

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20171013

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20171013