[특허]Method and apparatus for offset frequency estimation for a coherent receiver

[미국특허] Method and apparatus for offset frequency estimation for a coherent receiver 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04K-001/00 H03L-007/06
출원번호	US-0402260 (1995-03-10)
발명자 / 주소	Bruckert Eugene J. (Arlington Heights IL) Ling Fuyun (Hoffman Estates IL) Sexton Thomas A. (Schaumburg IL)
출원인 / 주소	Motorola, Inc. (Schaumburg IL 02)
인용정보	피인용 횟수 : 73 인용 특허 : 6

초록 ▼

A method and apparatus for improved offset frequency estimation includes in a first embodiment a receiver (100) for coherent reception of a signal having known reference information, the receiver including an extractor (106) for extracting the reference information (107) from the signal, and an offset frequency estimator (110). The offset frequency estimator (110) includes a filter (121) for filtering the reference information and outputting a filtered reference sequence; a correlator (122, 124) for correlating the filtered reference sequence against a predetermined reference signal to form correlation values; and a peak detector (126) for determining an offset frequency estimate (131) from the correlation values. Other embodiments are also shown.

대표청구항 ▼

A method for offset frequency estimation of a received signal having known reference information, the method comprising: (a) extracting the reference information from the received signal; (b) filtering the reference information to output a filtered reference sequence; (c) correlating the filtered reference sequence against a predetermined reference signal to form correlation values, the predetermined reference signal being a sequence of noiseless candidates, each candidate of the sequence of noiseless candidates having a greater increase in phase per a predetermined unit of time than a preceding candidate; and (d) determining an offset signal characteristic estimate from the correlation values.

이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

Hurlbut Amy O. (San Francisco CA) Sutterlin Philip H. (San Jose CA), Adaptive data recovery for spread spectrum systems.
상세보기
Zarembowitch Alain (Katwijk NLX), Code acquisition process and circuit for a spread-spectrum signal.
상세보기
Gilhousen Klein S. (San Diego CA) Padovani Roberto (San Diego CA) Wheatly ; III Charles E. (Del Mar CA), Diversity receiver in a CDMA cellular telephone system.
상세보기
Yokev Hanoch (Ramat-Gan ILX) Harel Haim (Herzelia ILX) Meiman Yehouda (Rishon Letzian ILX), Low-power frequency-hopped spread spectrum reverse paging system.
상세보기
Ling Fuyun (Hoffman Estates IL), Method and apparatus for coherent communication in a spread-spectrum communication system.
상세보기
Neeser Fredy D. (Zurich CHX) Hufschmid Markus D. (Zurich CHX) Ruprecht Jrg P. (Muri CHX), Receiver for a DSSS signal.
상세보기

이 특허를 인용한 특허 (73) 인용/피인용 타임라인 분석

Birru,Dagnachew; Gaddam,Vasanth R.; Ghosh,Monisha, ATSC digital television system.
상세보기
Eidson, Donald Brian, Accelerated selection of a base station in a wireless communication system.
상세보기
Cox, Earl C.; Anderton, David O.; Komaili, Jaleh; Wan, Yongbing; Walley, Scott, Adaptive wireless communication receiver.
상세보기
Harish Viswanathan, Apparatus and method for generating a frequency offset estimate for communication systems having frequency selecting fading channels.
상세보기
Blanchard Scott David ; Wreschner Kenneth Solomon ; Brack Marc David ; Winningham Terry, Apparatus for despreading and demodulating a burst CDMA signal.
상세보기
Walley, Kenneth Scott; Underbrink, Paul A.; Gronemeyer, Steven A., Cancellation system and method for a wireless positioning system.
상세보기
Michael F. Garyantes, Code generator for multiple rake finger and method of use.
상세보기
Narasimhan, Ravi, Compensation for residual frequency offset, phase noise and sampling phase offset in wireless networks.
상세보기
Narasimhan, Ravi, Compensation for residual frequency offset, phase noise and sampling phase offset in wireless networks.
상세보기
Narasimhan, Ravi, Compensation for residual frequency offset, phase noise and sampling phase offset in wireless networks.
상세보기
Narasimhan,Ravi, Compensation for residual frequency offset, phase noise and sampling phase offset in wireless networks.
상세보기
Tien M. Nguyen ; Jack K. Holmes ; Srini H. Raghavan, Digital timing recovery loop for GMSK demodulators.
상세보기
Sanderford ; Jr. H. Britton ; Rouquette Robert E. ; Davis Robert J., Direct sequence frequency ambiguity resolving receiver.
상세보기
Sung,Po An, Doppler corrected communications receiver and method of removing doppler frequency shift.
상세보기
Gronemeyer Steven A., Doppler corrected spread spectrum matched filter.
상세보기
Gronemeyer, Steven A., Doppler corrected spread spectrum matched filter.
상세보기
Gronemeyer, Steven A., Fast acquisition of GPS signal.
상세보기
Gronemeyer, Steven A., Fast reacquisition of a GPS signal.
상세보기
White, Stanley A.; Walley, Kenneth S.; Johnston, James W.; Henderson, P. Michael; Hale, Kelly H.; Andrews, Jr., Warner B.; Siann, Jonathan I., Field unit for use in a GPS system.
상세보기
Hansen, Eric John; Luo, Wenzhe; Ma, Zhigang; McDowell, Richard L., Fine-stage automatic frequency compensation in post-detection short-range wireless applications.
상세보기
Dan Avidor ; Colin Alan Warwick, Frequency and phase estimation for MPSK signals.
상세보기
Ohseki,Takeo; Furudate,Masato; Kunisawa,Yoshio; Ishikawa,Hiroyasu; Shinonaga,Hideyuki, Frequency error correction device and OFDM receiver with the device.
상세보기
Makarov, Aleksej, Frequency error estimation and correction.
상세보기
Makarov,Aleksej, Frequency error estimation and correction.
상세보기
Makarov,Aleksej, Frequency offset estimator.
상세보기
Doetsch, Markus; Jung, Peter; Plechinger, Jörg; Schmidt, Peter, Frequency-stabilized transmitting/receiving configuration.
상세보기
Ravi Subramanian ; Keith Rieken ; Uma Jha ; David M. Holmes ; Joel D. Medlock ; Murali Krishnan, Generic finger architecture for spread spectrum applications.
상세보기
Alagha, Nader S., Hybrid frequency offset estimator.
상세보기
Chris Levesque, Integrated power management module.
상세보기
Srivastava, Vikash; Chen, Meng, Iterative pilot-aided frequency offset estimation and C/I measurement for TDMA signal with offset larger than nyquist frequency of the reference symbol rate.
상세보기
Kudhrethaya A. Shridhara, Jamming detection and blanking for GPS receivers.
상세보기
Song Wei-jei, Method and an apparatus for positioning system assisted cellular radiotelephone handoff and dropoff.
상세보기
Challa,Raghu; Sih,Gilbert Christopher, Method and apparatus for acquiring and tracking pilots in a CDMA communication system.
상세보기
Patel,Shimman; Wilborn,Thomas B., Method and apparatus for bandwidth estimation.
상세보기
Sandin Tomas,SEX, Method and apparatus for coherently-averaged power estimation.
상세보기
Zhuang,Jiayi; Lin,Jingdong; Sun,Yueheng, Method and apparatus for frequency tracking based on recovered data.
상세보기
Subrahmanya,Parvathanathan; Sendonaris,Andrew, Method and apparatus for performing frequency tracking based on diversity transmitted pilots in a CDMA communication system.
상세보기
Hu, Guorong; Hsu, Yungping, Method and apparatus for predicting CCK subsymbols.
상세보기
Hu,Guorong; Hsu,Yungping, Method and apparatus for predicting CCK subsymbols.
상세보기
Wang, Michael M., Method and apparatus for synchronization within a spread-spectrum communication system.
상세보기
Underbrink, Paul A.; Gronemeyer, Steven A., Method and system for data detection in a global positioning system satellite receiver.
상세보기
Underbrink, Paul A.; Gronemeyer, Steven A., Method and system for data detection in a global positioning system satellite receiver.
상세보기
Underbrink,Paul A.; Gronemeyer,Steven A., Method and system for data detection in a global positioning system satellite receiver.
상세보기
Furse,Cynthia; Lo,Chet, Method and system for testing a signal path having an operational signal.
상세보기
Jalloul Louay ; Yousef Nabil, Method for determining optimum number of complex samples for coherent averaging in a communication system.
상세보기
Chevrette, Joel; Rosset, Fabienne, Method for determining the sampling phase and method for synchronization word detection using the phase detection method.
상세보기
Yan, Meng; Cao, Yinwen; Tao, Zhenning, Method for estimating frequency offset, apparatus and system.
상세보기
Hischke, Mark D., Method for tuning a spread spectrum receiver.
상세보기
Peeters, Miguel; Pollet, Thierry, Method of arrangement to determine a clock timing error in a multi-carrier transmission system, and a related synchronization units.
상세보기
Nelson, Douglas J., Method of estimating signal frequency.
상세보기
Yoon, Dae Jung; Gunzelmann, Bertram; Scherb, Ansgar, Mobile terminal devices, mobile processing circuits, and methods of processing signals.
상세보기
Ko, Herbert L., Mutual frequency locking across a link.
상세보기
Onu Dan, Period determination of a periodic signal.
상세보기
Underbrink, Paul A., Personal communications device with ratio counter.
상세보기
Kind, Adriel P., Pilot-assisted doppler frequency estimation.
상세보기
Krasner, Norman F., Rapid acquisition methods and apparatus for GPS signals.
상세보기
Krasner, Norman F., Rapid acquisition methods and apparatus for GPS signals.
상세보기
Krasner, Norman F., Rapid acquisition methods and apparatus for GPS signals.
상세보기
Underbrink, Paul A., Signal detector employing a Doppler phase correction system.
상세보기
Underbrink, Paul A.; Gronemeyer, Steven A., Signal detector employing a doppler phase correction system.
상세보기
Gronemeyer, Steven A., Signal detector employing coherent integration.
상세보기
Steven A. Gronemeyer, Signal detector employing coherent integration.
상세보기
Gronemeyer Steven A., Signal detector employing correlation analysis of non-uniform and disjoint sample segments.
상세보기
Gronemeyer, Steven A., Signal detector employing correlation analysis of non-uniform and disjoint sample segments.
상세보기
Gronemeyer,Steven A., Signal detector employing correlation analysis of non-uniform and disjoint sample segments.
상세보기
Kudhrethaya, Shridhara A.; Underbrink, Paul A., Spread spectrum receiver performance improvement.
상세보기
Laroia,Rajiv; Li,Junyi; Rangan,Sundeep; Sampath,Hemanth T., Synchronization of a pilot assisted channel estimation orthogonal frequency division multiplexing system.
상세보기
Chennakeshu Sandeep ; Molnar Karl, Synchronization techniques and systems for radiocommunication.
상세보기
Beadle,Edward R.; Dishman,John F., System and method for an in-service decision-directed signal to noise ratio estimator.
상세보기
Underbrink, Paul A.; Gronemyer, Steven A., System and method for despreading in a spread spectrum matched filter.
상세보기
Underbrink, Paul A.; Gronemyer, Steven A., System and method for despreading in a spread spectrum matched filter.
상세보기
Narasimhan, Ravi, Systems and methods for compensating a channel estimate for phase and sampling phase jitter.
상세보기
Narasimhan, Ravi, Systems and methods for compensating a channel estimate for sampling phase jitter.
상세보기

활용도 분석정보

상세보기

다운로드

내보내기

활용도 Top5 특허

해당 특허가 속한 카테고리에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.

내보내기 메뉴

내보내기 구분

파일저장
인쇄
메일전송

구성항목

기본정보
상세정보

관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC

저장형식

Text(ASCII format)
Excel format
PIAS분석(.xls)

메일정보

받는사람 (필수): @
보내는사람 (선택): @
제목
내용: KISTI 검색결과 이메일 서비스

안내

총 건의 자료가 검색되었습니다.

다운받으실 자료의 인덱스를 입력하세요. (1-10,000)

검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다.

데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요)

다운로드 파일은 UTF-8 형태로 저장됩니다.
파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오.

Text(ASCII format)
Excel format

AI-Helper ※ AI-Helper는 을 사용합니다.

AI-Helper

안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

연합인증

[미국특허] Method and apparatus for offset frequency estimation for a coherent receiver 원문보기