HK1037818A1 - Automatic frequency control apparatus and method in mobile communication system. - Google Patents
Automatic frequency control apparatus and method in mobile communication system.Info
- Publication number
- HK1037818A1 HK1037818A1 HK01108374A HK01108374A HK1037818A1 HK 1037818 A1 HK1037818 A1 HK 1037818A1 HK 01108374 A HK01108374 A HK 01108374A HK 01108374 A HK01108374 A HK 01108374A HK 1037818 A1 HK1037818 A1 HK 1037818A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- communication system
- mobile communication
- control apparatus
- frequency control
- automatic frequency
- Prior art date
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
- H03J7/02—Automatic frequency control
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP35537599A JP2001177436A (ja) | 1999-12-15 | 1999-12-15 | 移動通信システムにおけるafc制御装置及びその方法並びにそれを使用した移動通信機 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1037818A1 true HK1037818A1 (en) | 2002-02-15 |
Family
ID=18443577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK01108374A HK1037818A1 (en) | 1999-12-15 | 2001-11-28 | Automatic frequency control apparatus and method in mobile communication system. |
Country Status (6)
Country | Link |
---|---|
US (1) | US6816540B2 (zh) |
EP (1) | EP1109313B1 (zh) |
JP (1) | JP2001177436A (zh) |
CN (1) | CN1201515C (zh) |
DE (1) | DE60043180D1 (zh) |
HK (1) | HK1037818A1 (zh) |
Families Citing this family (41)
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GB2359456B (en) | 2000-02-19 | 2003-09-17 | Nec Technologies | Method for frequency offset estimation in a direct sequence spread spectrum communications receiver |
JP2002101012A (ja) * | 2000-09-22 | 2002-04-05 | Sanyo Electric Co Ltd | 周波数制御方法、周波数制御装置、及び通信端末 |
US7443826B1 (en) * | 2000-10-04 | 2008-10-28 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for automatic frequency control in a CDMA receiver |
JP2002152081A (ja) * | 2000-11-07 | 2002-05-24 | Matsushita Electric Ind Co Ltd | 受信装置及び受信装置における基準周波数制御方法 |
JP2002190765A (ja) * | 2000-12-20 | 2002-07-05 | Nec Corp | 移動端末の周波数制御方式 |
JP2004080223A (ja) | 2002-08-14 | 2004-03-11 | Nec Corp | Afc装置及びその動作制御方法並びにそれを用いた移動通信装置 |
US7333573B2 (en) | 2002-08-23 | 2008-02-19 | Hitachi Kokusai Electric Inc. | Radio communication apparatus and method having automatic frequency control function |
JP4154591B2 (ja) * | 2003-04-25 | 2008-09-24 | 日本電気株式会社 | 周波数オフセットの検出処理システム及びそれを用いた周波数オフセットの検出処理方法 |
AR045892A1 (es) * | 2003-06-18 | 2005-11-16 | Shell Int Research | Composicion de gasolina |
JP3845081B2 (ja) | 2003-12-25 | 2006-11-15 | 株式会社東芝 | 周波数調整方法及び装置 |
FI20040700A0 (fi) * | 2004-05-19 | 2004-05-19 | Oulun Ylipisto | Signaalin vastaanotto kommunikaatiojärjestelmässä |
US7327803B2 (en) | 2004-10-22 | 2008-02-05 | Parkervision, Inc. | Systems and methods for vector power amplification |
US7355470B2 (en) | 2006-04-24 | 2008-04-08 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
US7725727B2 (en) * | 2005-06-01 | 2010-05-25 | International Business Machines Corporation | Automatic signature generation for content recognition |
US7865158B2 (en) * | 2005-07-26 | 2011-01-04 | Interdigital Technology Corporation | Method and apparatus for automatically correcting receiver oscillator frequency |
US8334722B2 (en) | 2007-06-28 | 2012-12-18 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation and amplification |
US20130078934A1 (en) | 2011-04-08 | 2013-03-28 | Gregory Rawlins | Systems and Methods of RF Power Transmission, Modulation, and Amplification |
US9106316B2 (en) | 2005-10-24 | 2015-08-11 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification |
US7911272B2 (en) | 2007-06-19 | 2011-03-22 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments |
US8013675B2 (en) | 2007-06-19 | 2011-09-06 | Parkervision, Inc. | Combiner-less multiple input single output (MISO) amplification with blended control |
US7937106B2 (en) | 2006-04-24 | 2011-05-03 | ParkerVision, Inc, | Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same |
US8031804B2 (en) | 2006-04-24 | 2011-10-04 | Parkervision, Inc. | Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion |
CN101166184B (zh) * | 2006-10-17 | 2011-03-30 | 华为技术有限公司 | Ntp软件时间硬件测量方法和装置 |
US7620129B2 (en) * | 2007-01-16 | 2009-11-17 | Parkervision, Inc. | RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signals |
JP4215168B2 (ja) | 2007-01-19 | 2009-01-28 | 日本電波工業株式会社 | 信号処理部及び無線機 |
WO2008144017A1 (en) | 2007-05-18 | 2008-11-27 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
JP2009065581A (ja) * | 2007-09-10 | 2009-03-26 | Nec Corp | 無線通信システム及び方法 |
CN101447800B (zh) * | 2007-11-27 | 2013-01-09 | 展讯通信(上海)有限公司 | 提高手机输出频率精度的方法和装置及其手机 |
US8958460B2 (en) | 2008-03-18 | 2015-02-17 | On-Ramp Wireless, Inc. | Forward error correction media access control system |
US7733945B2 (en) * | 2008-03-18 | 2010-06-08 | On-Ramp Wireless, Inc. | Spread spectrum with doppler optimization |
US20090239550A1 (en) * | 2008-03-18 | 2009-09-24 | Myers Theodore J | Random phase multiple access system with location tracking |
US8520721B2 (en) | 2008-03-18 | 2013-08-27 | On-Ramp Wireless, Inc. | RSSI measurement mechanism in the presence of pulsed jammers |
US7526013B1 (en) * | 2008-03-18 | 2009-04-28 | On-Ramp Wireless, Inc. | Tag communications with access point |
US7773664B2 (en) * | 2008-03-18 | 2010-08-10 | On-Ramp Wireless, Inc. | Random phase multiple access system with meshing |
US8477830B2 (en) | 2008-03-18 | 2013-07-02 | On-Ramp Wireless, Inc. | Light monitoring system using a random phase multiple access system |
US8363699B2 (en) | 2009-03-20 | 2013-01-29 | On-Ramp Wireless, Inc. | Random timing offset determination |
US7639726B1 (en) | 2009-03-20 | 2009-12-29 | On-Ramp Wireless, Inc. | Downlink communication |
US7702290B1 (en) | 2009-04-08 | 2010-04-20 | On-Ramp Wirless, Inc. | Dynamic energy control |
CN103493414B (zh) * | 2011-04-19 | 2016-08-31 | 松下电器(美国)知识产权公司 | 信号生成方法及信号生成装置 |
WO2012167111A2 (en) | 2011-06-02 | 2012-12-06 | Parkervision, Inc. | Antenna control |
KR20160058855A (ko) | 2013-09-17 | 2016-05-25 | 파커비전, 인크. | 정보를 포함하는 시간의 함수를 렌더링하기 위한 방법, 장치 및 시스템 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5579338A (en) * | 1992-06-29 | 1996-11-26 | Mitsubishi Denki Kabushiki Kaisha | Spread spectrum receiver using partial correlations |
US5278874A (en) * | 1992-09-02 | 1994-01-11 | Motorola, Inc. | Phase lock loop frequency correction circuit |
JPH0774726A (ja) | 1993-09-03 | 1995-03-17 | Sony Corp | 復調装置 |
GB2282300B (en) * | 1993-09-22 | 1997-10-22 | Northern Telecom Ltd | Communications system and receiver devices therefor |
DE69431970T2 (de) * | 1993-10-14 | 2003-08-28 | Ntt Docomo Inc | Korrelationsdetektor und Nachrichtengerät |
JP3252566B2 (ja) | 1993-10-22 | 2002-02-04 | 富士通株式会社 | スペクトラム拡散通信における自動周波数制御回路及びその受信装置 |
CA2153516C (en) * | 1994-07-20 | 1999-06-01 | Yasuo Ohgoshi | Mobile station for cdma mobile communication system and detection method of the same |
DE69634845T2 (de) * | 1995-01-05 | 2006-05-18 | Ntt Docomo Inc. | Vorrichtung und verfahren zur kohärenten verfolgung eines signals zur verwendung in einem cdma empfänger |
JP2705613B2 (ja) * | 1995-01-31 | 1998-01-28 | 日本電気株式会社 | 周波数オフセット補正装置 |
JP3193613B2 (ja) | 1996-01-12 | 2001-07-30 | 株式会社日立国際電気 | 相関ピーク検出型周波数誤差検出回路 |
JP3611665B2 (ja) | 1996-04-30 | 2005-01-19 | 松下電器産業株式会社 | Afc回路 |
JPH09321667A (ja) * | 1996-05-29 | 1997-12-12 | Yozan:Kk | Cdma通信システム用受信機 |
JPH09331307A (ja) * | 1996-06-13 | 1997-12-22 | Hitachi Ltd | スペクトル拡散復調装置 |
JP2865086B2 (ja) * | 1996-11-28 | 1999-03-08 | 日本電気株式会社 | 移動通信端末 |
JPH10210095A (ja) | 1997-01-28 | 1998-08-07 | Toshiba Corp | 周波数誤差補正方法及び無線通信装置 |
JPH10224420A (ja) | 1997-02-05 | 1998-08-21 | Toshiba Corp | デジタル復調装置のafc回路 |
US6005889A (en) * | 1997-07-17 | 1999-12-21 | Nokia | Pseudo-random noise detector for signals having a carrier frequency offset |
-
1999
- 1999-12-15 JP JP35537599A patent/JP2001177436A/ja active Pending
-
2000
- 2000-12-12 EP EP20000127154 patent/EP1109313B1/en not_active Expired - Lifetime
- 2000-12-12 DE DE60043180T patent/DE60043180D1/de not_active Expired - Lifetime
- 2000-12-13 US US09/734,699 patent/US6816540B2/en not_active Expired - Fee Related
- 2000-12-14 CN CNB001350668A patent/CN1201515C/zh not_active Expired - Fee Related
-
2001
- 2001-11-28 HK HK01108374A patent/HK1037818A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1109313A3 (en) | 2003-10-15 |
EP1109313A2 (en) | 2001-06-20 |
JP2001177436A (ja) | 2001-06-29 |
DE60043180D1 (de) | 2009-12-03 |
EP1109313B1 (en) | 2009-10-21 |
US20010004373A1 (en) | 2001-06-21 |
US6816540B2 (en) | 2004-11-09 |
CN1305281A (zh) | 2001-07-25 |
CN1201515C (zh) | 2005-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20131214 |