DE69218934T2 - System zur entdeckung und korrektion von frequenzfehlern - Google Patents

System zur entdeckung und korrektion von frequenzfehlern

Info

Publication number
DE69218934T2
DE69218934T2 DE69218934T DE69218934T DE69218934T2 DE 69218934 T2 DE69218934 T2 DE 69218934T2 DE 69218934 T DE69218934 T DE 69218934T DE 69218934 T DE69218934 T DE 69218934T DE 69218934 T2 DE69218934 T2 DE 69218934T2
Authority
DE
Germany
Prior art keywords
detecting
frequency errors
correcting frequency
correcting
errors
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
DE69218934T
Other languages
English (en)
Other versions
DE69218934D1 (de
Inventor
Alfred Wieczorek
Charles Lynk
Walter Rozanski
Kenneth Zdunek
Terry Mansfield
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 DE69218934D1 publication Critical patent/DE69218934D1/de
Publication of DE69218934T2 publication Critical patent/DE69218934T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
DE69218934T 1991-05-28 1992-01-30 System zur entdeckung und korrektion von frequenzfehlern Expired - Fee Related DE69218934T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/705,875 US5249305A (en) 1989-09-27 1991-05-28 Radio frequency error detection and correction system
PCT/US1992/000748 WO1992022142A1 (en) 1991-05-28 1992-01-30 Radio frequency error detection and correction system

Publications (2)

Publication Number Publication Date
DE69218934D1 DE69218934D1 (de) 1997-05-15
DE69218934T2 true DE69218934T2 (de) 1997-10-16

Family

ID=24835318

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69218934T Expired - Fee Related DE69218934T2 (de) 1991-05-28 1992-01-30 System zur entdeckung und korrektion von frequenzfehlern

Country Status (8)

Country Link
US (1) US5249305A (de)
EP (1) EP0586548B1 (de)
JP (1) JPH06507531A (de)
CA (1) CA2107767C (de)
DE (1) DE69218934T2 (de)
FI (1) FI935258A0 (de)
NO (1) NO934273D0 (de)
WO (1) WO1992022142A1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450617A (en) * 1993-05-25 1995-09-12 Motorola, Inc. Method and apparatus for closed loop frequency control in a two-way communication system
KR100334187B1 (ko) * 1993-11-22 2002-11-20 코닌클리케 필립스 일렉트로닉스 엔.브이. 전기통신시스템및이전기통신시스템에서사용하기위한제1무선국과,제2무선국및송수신기
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
FI97582C (fi) * 1995-03-03 1997-01-10 Nokia Telecommunications Oy Matkaviestimen lähetyksen tahdistaminen
US5794119A (en) * 1995-11-21 1998-08-11 Stanford Telecommunications, Inc. Subscriber frequency control system and method in point-to-multipoint RF communication system
US5889816A (en) * 1996-02-02 1999-03-30 Lucent Technologies, Inc. Wireless adapter architecture for mobile computing
US5805984A (en) * 1996-03-05 1998-09-08 Motorola, Inc. Method and apparatus for eliminating frequency mismatch between a transmitter and a receiver
US5819177A (en) * 1996-03-20 1998-10-06 Dynamic Telecommunications, Inc. Fixed wireless terminals with network management method and apparatus
US6041088A (en) * 1996-10-23 2000-03-21 Sicom, Inc. Rapid synchronization for communication systems
DE19737758A1 (de) * 1997-08-29 1999-03-04 Bosch Gmbh Robert Verfahren zum Einstellen der Sendeträgerfrequenz in einer Teilnehmerstation eines Punkt-zu-Mehrpunkt Funkübertragungssystem
US6240276B1 (en) * 1998-04-28 2001-05-29 Ericsson Inc. Compensating for errors in tuning frequency of a global positioning satellite (GPS) receiver
US6650874B1 (en) * 1999-11-23 2003-11-18 Agere Systems, Inc. Real-time slow drift correction of alignment of handset's local oscillator for cordless telephone
JP2002077288A (ja) * 2000-06-20 2002-03-15 Comspace Corp 閉ループ周波数制御
US7024187B2 (en) * 2000-12-08 2006-04-04 Samsung Electronics Co., Ltd. System and method for performing diagnostics on a mobile station using over-the-air transfer of interpreted byte-code program
US7228118B2 (en) * 2002-06-27 2007-06-05 Agere Systems Inc. Method of calibrating PLL frequency synthesizers to precise frequencies with low tolerance crystals in their master reference oscillators
US20040106381A1 (en) * 2002-09-06 2004-06-03 Engim Incorporated Transmit signal cancellation in wireless receivers
US7209716B2 (en) * 2003-02-27 2007-04-24 Ntt Docomo, Inc. Radio communication system, radio station, and radio communication method
US8312496B2 (en) * 2008-04-28 2012-11-13 Acterna Llc Measuring the frequency response of a CATV network
CN103248439B (zh) * 2013-04-08 2015-01-28 贵州航天天马机电科技有限公司 一种无线通信设备故障检测系统及其方法
CN103731162B (zh) * 2013-12-20 2015-08-12 天津光电通信技术有限公司 一种基于arm实现数字下变频的宽频扫描系统
CN104202100A (zh) * 2014-09-04 2014-12-10 安徽白鹭电子科技有限公司 频谱仪的瞬态检波方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401860A (en) * 1982-01-29 1983-08-30 Bell Telephone Laboratories, Incorporated Frequency signaling method and apparatus with dynamic compensation for frequency errors
GB8323966D0 (en) * 1983-09-07 1983-10-12 British Telecomm Frequency control for point-to-multipoint radio
JPH0744485B2 (ja) * 1987-05-22 1995-05-15 三菱電機株式会社 自動車電話装置
JPH0290321A (ja) * 1988-09-28 1990-03-29 Hitachi Ltd カタログ実行制御方式
WO1991005410A1 (en) * 1989-09-27 1991-04-18 Motorola, Inc. Method and apparatus for adjusting the frequency of a two-way radio

Also Published As

Publication number Publication date
CA2107767C (en) 1997-01-28
FI935258A (fi) 1993-11-26
EP0586548A4 (de) 1994-03-21
EP0586548B1 (de) 1997-04-09
DE69218934D1 (de) 1997-05-15
EP0586548A1 (de) 1994-03-16
FI935258A0 (fi) 1993-11-26
JPH06507531A (ja) 1994-08-25
WO1992022142A1 (en) 1992-12-10
CA2107767A1 (en) 1992-11-29
NO934273L (no) 1993-11-25
US5249305A (en) 1993-09-28
NO934273D0 (no) 1993-11-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee