DE69517946D1 - Vorrichtung und verfahren zur maximierung der wirksamkeit einer frequenzversatznachführung in einem digitalen empfänger - Google Patents

Vorrichtung und verfahren zur maximierung der wirksamkeit einer frequenzversatznachführung in einem digitalen empfänger

Info

Publication number
DE69517946D1
DE69517946D1 DE69517946T DE69517946T DE69517946D1 DE 69517946 D1 DE69517946 D1 DE 69517946D1 DE 69517946 T DE69517946 T DE 69517946T DE 69517946 T DE69517946 T DE 69517946T DE 69517946 D1 DE69517946 D1 DE 69517946D1
Authority
DE
Germany
Prior art keywords
maximizing
effectiveness
level adjustment
digital receiver
frequency level
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
DE69517946T
Other languages
English (en)
Other versions
DE69517946T2 (de
Inventor
L Baum
Paul Gurney
Leigh Kuffner
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.)
Motorola Solutions Inc
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 DE69517946D1 publication Critical patent/DE69517946D1/de
Publication of DE69517946T2 publication Critical patent/DE69517946T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop
DE69517946T 1994-07-25 1995-05-22 Vorrichtung und verfahren zur maximierung der wirksamkeit einer frequenzversatznachführung in einem digitalen empfänger Expired - Fee Related DE69517946T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28003894A 1994-07-25 1994-07-25
PCT/US1995/006321 WO1996003827A1 (en) 1994-07-25 1995-05-22 Apparatus and method for maximizing frequency offset tracking performance in a digital receiver

Publications (2)

Publication Number Publication Date
DE69517946D1 true DE69517946D1 (de) 2000-08-17
DE69517946T2 DE69517946T2 (de) 2001-02-15

Family

ID=23071375

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69517946T Expired - Fee Related DE69517946T2 (de) 1994-07-25 1995-05-22 Vorrichtung und verfahren zur maximierung der wirksamkeit einer frequenzversatznachführung in einem digitalen empfänger

Country Status (7)

Country Link
US (1) US5740205A (de)
EP (1) EP0729681B1 (de)
CN (1) CN1130967A (de)
AU (1) AU677909B2 (de)
CA (1) CA2169551C (de)
DE (1) DE69517946T2 (de)
WO (1) WO1996003827A1 (de)

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FR2743681B1 (fr) * 1996-01-16 1998-03-06 Europ Agence Spatiale Procede et dispositif pour synchroniser une station receptrice de signaux.
KR100233658B1 (ko) * 1996-10-21 1999-12-01 윤종용 고선명 텔레비젼 수신기의 반송파 복구시간을 줄이는 방법
US5933059A (en) * 1997-10-22 1999-08-03 Ericsson Inc. Method and apparatus for controlling frequency synchronization in a radio telephone
US6038266A (en) * 1998-09-30 2000-03-14 Lucent Technologies, Inc. Mixed mode adaptive analog receive architecture for data communications
US6385267B1 (en) * 1998-12-22 2002-05-07 Microsoft Corporation System and method for locking disparate video formats
KR100529150B1 (ko) 1999-06-24 2005-11-16 매그나칩 반도체 유한회사 주파수 옵셋 및 위상 에러를 동시에 줄이는 반송파 주파수 복구 방법 및 장치
US7050485B2 (en) * 2002-05-07 2006-05-23 Koninklijke Philips Electronics N.V. Iterative CDMA phase and frequency acquisition
KR100453696B1 (ko) * 2002-05-20 2004-10-20 전자부품연구원 무선 이동 디지털 통신 시스템에서의 개선된 주파수오프셋 추정 방법
US6697016B1 (en) * 2002-09-30 2004-02-24 Motorola, Inc. Self adjustment of a frequency offset in a GPS receiver
CA2470546C (en) * 2003-06-13 2010-08-17 The Directv Group, Inc. Method and apparatus for providing carrier synchronization in digital broadcast and interactive systems
CN1607787B (zh) * 2003-07-28 2010-09-29 上海宣普实业有限公司 时分无线通信系统的自动频率校正方法
CN1607787B9 (zh) * 2003-07-28 2018-12-14 上海宣普实业有限公司 时分无线通信系统的自动频率校正方法
CN1607788B (zh) * 2003-07-28 2011-10-26 上海宣普实业有限公司 时分无线通信系统接收机的自动频率校正方法
US8107512B2 (en) * 2004-03-08 2012-01-31 Thomson Licensing Method and apparatus for robust automatic frequency control in CDMA systems with constant pilot signals
US7372932B2 (en) * 2004-03-31 2008-05-13 Victor Company Of Japan, Limited Locking-status judging circuit for digital PLL circuit
JP4666249B2 (ja) * 2004-03-31 2011-04-06 日本ビクター株式会社 ディジタルｐｌｌのロック状態判定回路
US7493118B2 (en) * 2005-02-25 2009-02-17 Mediatek Inc. Mode selection methods and related devices in a mobile communication system
CN101001231B (zh) * 2006-01-12 2011-11-30 上海原动力通信科技有限公司 宽带时分双工蜂窝系统的频偏校正方法及小区初搜方法
US7729454B2 (en) * 2006-11-30 2010-06-01 Broadcom Corporation Method and system for signal phase variation detection in communication systems
KR101456002B1 (ko) * 2007-06-26 2014-11-03 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
KR101405966B1 (ko) 2007-06-26 2014-06-20 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
WO2009028854A1 (en) 2007-08-24 2009-03-05 Lg Electronics Inc. Digital broadcasting system and method of processing data in digital broadcasting system
US7646828B2 (en) * 2007-08-24 2010-01-12 Lg Electronics, Inc. Digital broadcasting system and method of processing data in digital broadcasting system
CA2695548C (en) 2007-08-24 2013-10-15 Lg Electronics Inc. Digital broadcasting system and method of processing data in digital broadcasting system
CN101998028B (zh) * 2009-08-13 2012-08-29 承景科技股份有限公司 载波追踪系统与其方法
CN112520325B (zh) * 2020-12-10 2022-07-08 福建龙净环保股份有限公司 一种管带输送机张紧控制方法、控制装置和管带输送机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911219A (en) * 1974-03-11 1975-10-07 Bell Telephone Labor Inc Automatic frequency control for differentially coherent phase detection
US4715001A (en) * 1984-08-23 1987-12-22 Motorola, Inc. Extremely accurate automatic frequency control circuit and method therefor
US4691176A (en) * 1986-03-17 1987-09-01 General Electric Company Adaptive carrier tracking circuit
JP2724145B2 (ja) * 1987-03-24 1998-03-09 株式会社日立製作所 搬送波再生装置
US5289506A (en) * 1990-02-05 1994-02-22 Sharp Kabushiki Kaisha Automatic frequency control circuit
DE4216027C2 (de) * 1991-05-17 1993-09-30 Hitachi Ltd Demodulierschaltkreis
US5471508A (en) * 1993-08-20 1995-11-28 Hitachi America, Ltd. Carrier recovery system using acquisition and tracking modes and automatic carrier-to-noise estimation

Also Published As

Publication number Publication date
WO1996003827A1 (en) 1996-02-08
DE69517946T2 (de) 2001-02-15
EP0729681B1 (de) 2000-07-12
AU677909B2 (en) 1997-05-08
AU2554395A (en) 1996-02-22
US5740205A (en) 1998-04-14
CA2169551A1 (en) 1996-02-08
EP0729681A1 (de) 1996-09-04
EP0729681A4 (de) 1996-12-04
CA2169551C (en) 2001-02-13
CN1130967A (zh) 1996-09-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: SCHUMACHER & WILLSAU, PATENTANWALTSSOZIETAET, 80335 MUENCHEN

8339 Ceased/non-payment of the annual fee