ATE409982T1 - Verfahren und vorrichtung zur verringerung der scan-zeit bei einem funkempfänger - Google Patents

Verfahren und vorrichtung zur verringerung der scan-zeit bei einem funkempfänger

Info

Publication number
ATE409982T1
ATE409982T1 AT02705832T AT02705832T ATE409982T1 AT E409982 T1 ATE409982 T1 AT E409982T1 AT 02705832 T AT02705832 T AT 02705832T AT 02705832 T AT02705832 T AT 02705832T AT E409982 T1 ATE409982 T1 AT E409982T1
Authority
AT
Austria
Prior art keywords
channel
radio
bandwidth
scan time
radio receiver
Prior art date
Application number
AT02705832T
Other languages
English (en)
Inventor
Wayne Phang
John Mckinney
Dang Vu
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 ATE409982T1 publication Critical patent/ATE409982T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers
    • H03J7/285—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Noise Elimination (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
AT02705832T 2001-01-19 2002-01-16 Verfahren und vorrichtung zur verringerung der scan-zeit bei einem funkempfänger ATE409982T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/764,037 US6480709B2 (en) 2001-01-19 2001-01-19 Method for reducing scan time in a radio receiver

Publications (1)

Publication Number Publication Date
ATE409982T1 true ATE409982T1 (de) 2008-10-15

Family

ID=25069511

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02705832T ATE409982T1 (de) 2001-01-19 2002-01-16 Verfahren und vorrichtung zur verringerung der scan-zeit bei einem funkempfänger

Country Status (7)

Country Link
US (1) US6480709B2 (de)
EP (1) EP1356600B1 (de)
CN (1) CN100576755C (de)
AT (1) ATE409982T1 (de)
DE (1) DE60229107D1 (de)
ES (1) ES2314033T3 (de)
WO (1) WO2002058256A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2862834B1 (fr) * 2003-11-25 2006-03-10 Sagem Procede et dispositif de video-projection
US8774327B2 (en) * 2005-01-28 2014-07-08 Broadcom Corporation Adjustable RF receiver
US7697891B2 (en) * 2005-03-28 2010-04-13 Graco Children's Products Inc. Baby monitor system
US20060276239A1 (en) * 2005-06-02 2006-12-07 Lam Man L Direct conversion radio station operable pursuant to a coded squelch scheme and associated method
US8045981B2 (en) * 2005-08-18 2011-10-25 Qualcomm Incorporated System search to detect for a wireless communication network in a crowded frequency band
US7965675B2 (en) * 2005-08-22 2011-06-21 Motorola Mobility, Inc. System and method for detecting an unlicensed mobile alliance (UMA) service in GSM wireless communication networks
US7899488B2 (en) * 2006-07-31 2011-03-01 Motorola Mobility, Inc. Method and apparatus for extending network discovery range
US8725142B1 (en) 2006-10-31 2014-05-13 Marvell International Ltd. Channel scanning method and apparatus
US7593372B2 (en) * 2007-01-05 2009-09-22 Motorola, Inc. Method and radio device for scanning a wireless communications channel
US20130343284A1 (en) * 2010-09-29 2013-12-26 Unication Group/Unication Co., LTD. Method for members of emergency rescue group utilizing radios to transmit compound files containing compressed photo/text/voice data of an emergency event site directly or through signal repeater to console for reappearance of the event site
US9154184B2 (en) * 2012-03-22 2015-10-06 Elster Solutions, Llc Synchronous frequency hopping spread spectrum communications
CN104378105B (zh) * 2014-10-08 2017-10-03 中国电子科技集团公司第四十一研究所 一种基于全程锁相技术的提高接收机扫描速度的方法
EP3524031B1 (de) * 2016-10-07 2021-11-24 LG Electronics Inc. Verfahren und vorrichtung zur unterstützung eines energiesparenden mechanismus für nr in einem drahtloskommunikationssystem
CN109219075B (zh) * 2018-10-09 2022-05-10 深圳创维数字技术有限公司 一种无线信道扫描方法、装置、终端及存储介质
CN110996401B (zh) * 2019-12-02 2022-04-26 锐捷网络股份有限公司 一种确定空闲信道的方法、装置及设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365349A (en) * 1980-02-01 1982-12-21 Nippon Gakki Seizo Kabushiki Kaisha Radio receiver having phase locked loop and automatic frequency control loop for stably maintaining local oscillator frequency of voltage-controlled local oscillator
JP2676766B2 (ja) 1988-03-04 1997-11-17 松下電器産業株式会社 無線通信機
US5058204A (en) * 1989-08-02 1991-10-15 Motorola, Inc. Synthesized selective call receiver having variable characteristics
US5701598A (en) * 1990-09-14 1997-12-23 Atkinson; Noel D. Scanning receiver with direct digital frequency synthesis and digital signal processing
JP2723448B2 (ja) 1993-06-02 1998-03-09 ユニデン株式会社 無線受信機の選局方法および高速走査無線受信機
CA2125468C (en) * 1993-06-28 1998-04-21 Danny Thomas Pinckley Method of selectively reducing spectral components in a wideband radio frequency signal
US5511235A (en) * 1994-05-02 1996-04-23 Motorola, Inc. Apparatus for detecting a signaling channel during scanning including a controlled frequency converter circuit and a controlled filter bandwidth, and a method therefor
US5809419A (en) 1994-12-14 1998-09-15 Motorola, Inc. Method for reducing channel scanning time
US5799241A (en) 1995-01-27 1998-08-25 Matsushita Electric Industrial Co., Ltd. Radio apparatus
JPH10276125A (ja) * 1997-03-28 1998-10-13 Matsushita Electric Ind Co Ltd 移動無線受信装置
US5894592A (en) * 1997-04-17 1999-04-13 Motorala, Inc. Wideband frequency synthesizer for direct conversion transceiver

Also Published As

Publication number Publication date
US6480709B2 (en) 2002-11-12
ES2314033T3 (es) 2009-03-16
EP1356600A4 (de) 2004-04-07
CN100576755C (zh) 2009-12-30
EP1356600A1 (de) 2003-10-29
CN1488197A (zh) 2004-04-07
US20020098819A1 (en) 2002-07-25
EP1356600B1 (de) 2008-10-01
DE60229107D1 (de) 2008-11-13
WO2002058256A1 (en) 2002-07-25

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Legal Events

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