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Method and apparatus for characterizing a radio transmitter 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-017/00
출원번호 US-0139862 (1987-12-30)
발명자 / 주소
  • Ferrell Philip J. (Seattle WA)
출원인 / 주소
  • The Boeing Company (Seattle WA 02)
인용정보 피인용 횟수 : 36  인용 특허 : 12

초록 ▼

A method and apparatus for identifying a radio transmitter. The transient frequency or phase history of the turn-on characteristics of a transmitter is detected and digitized. The history can be analyzed by a microprocessor operating a computer program to gather transient phase information from an u

대표청구항 ▼

Apparatus for determining transient characteristics of a radio transmitter that transmits a transient signal, comprising: means for receiving the transient signal transmitted by the transmitter; means for measuring the signal phase of the transient signal with respect to a predetermined frequency; a

이 특허에 인용된 특허 (12)

  1. Overman Thelma L. (Millers MD) Overman Kelly C. (Millers MD), Adaptive radar threat detection and tracker verification system.
    상세보기
  2. Furukawa Yasuo (Tokyo JPX) Yamazaki Katsuyuki (Tokyo JPX) Hosaka Takemi (Tokyo JPX) Fukui Akira (Tokyo JPX), Audio frequency signal identification apparatus.
    상세보기
  3. Murrell Robert A. (45375 Fox La. E. ; 106 Utica MI 48087), Automatic monitoring system for radio signal.
    상세보기
  4. Kenyon Stephen C. (Stafford VA) Simkins Laura J. (Clarksburg MD) Sebastian Richard L. (Lorton VA), Broadcast information classification system and method.
    상세보기
  5. Murphy Richard J. (Clifton Park NY) Baker Glenn D. (Wayne NJ), Circuit for high-frequency sampling and compression of data for high-frequency electrical transient signals superimposed.
    상세보기
  6. D'Albora ; John M., Determination of variations of wave characteristics.
    상세보기
  7. Ready Patrick J. (Woodland Hills CA) Anderson Douglas R. (Van Nuys CA), Modulation detector and classifier.
    상세보기
  8. Manor Dan (34 Gluskin Street Rehovot ILX), Radar warning receiver.
    상세보기
  9. Campbell Kenneth J. (Solana Beach CA), Radio frequency signals analyzer.
    상세보기
  10. Bates, Jr., John K., Signal processing and synthesizing method and apparatus.
    상세보기
  11. Tsui James B. Y. (Centerville OH) Shaw Rudy L. (Huber Heights OH), Simultaneous signal detection for IFM receivers by detecting intermodulation products.
    상세보기
  12. McKiel ; Jr. Frank A. (Dallas TX), Test method and device for FM transmitter.
    상세보기

이 특허를 인용한 특허 (36)

  1. Hoogerwerf David N. ; Green Evan R. ; Stanhope David M. ; McKernan Randy, Active waveform collection for use in transmitter identification.
    상세보기
  2. Kaplan Dmitry ; Stanhope David M. ; McKernan Randolph W. ; Wilburn Howard L. ; Green Evan R., Apparatus and method for preventing fraudulent calls in a wireless telephone system using destination and fingerprint a.
    상세보기
  3. Hoogerwerf David N. ; Stanhope David M. ; Barrere William Gerrit ; Green Evan R. ; McKernan Randolph W., Automated forced call disruption for use with wireless telephone systems.
    상세보기
  4. Hawkes Kelly Davidson, Bit characteristics measurement system for digitally modulated signals.
    상세보기
  5. Frederick Max B., Cellular telephone anti-fraud system.
    상세보기
  6. Hawkes Kelly Davidson ; McKinley Michael Shaw ; Talbot Kenneth Irwin, Cellular telephone fraud prevention system using RF signature analysis.
    상세보기
  7. Sugar,Gary L., Cognitive spectrum analysis and information display techniques.
    상세보기
  8. Hoogerwerf David N. ; Stanhope David M. ; McKernan Randy, Detection and prevention of channel grabbing in a wireless communications system.
    상세보기
  9. Jordan, James Ronald; Churnside, James Harwood; Johnston, Paul Ernest, Detection of transient signals in doppler spectra.
    상세보기
  10. Kaminsky William J., Method and apparatus for exchanging RF signatures between cellular telephone systems.
    상세보기
  11. Kaminsky William J. ; Sanpore Jeffrey G. ; Daniels David L. ; Kennedy Mary H., Method and apparatus for fraud control in cellular telephone systems.
    상세보기
  12. Kaminsky William J. ; Sanpore Jeffrey G. ; Daniels David L. ; Kennedy Mary H., Method and apparatus for fraud control in cellular telephone systems.
    상세보기
  13. Rudokas Ronald S. (Alamo CA) Storch John A. (Laguna Niguel CA) Daniels David L. (Placentia CA), Method and apparatus for fraud control in cellular telephone systems.
    상세보기
  14. Rudokas Ronald Steven ; Storch John Adam ; Daniels David Leighton, Method and apparatus for fraud control in cellular telephone systems.
    상세보기
  15. Walker, Aaron Lael; Buff, III, Peter Marcus, Method and apparatus for remote detection of radio-frequency devices.
    상세보기
  16. Zavidniak,Paul M., Methodology for the detection of intrusion into radio frequency (RF) based networks including tactical data links and the tactical internet.
    상세보기
  17. Sugar,Gary L.; Tesfai,Yohannes, Self-calibrated path loss position estimation and zone of impact determination.
    상세보기
  18. Miller,Karl A.; Mason,David F., Signal classification methods for scanning receiver and other applications.
    상세보기
  19. Kloper, David S.; Kane, Brian F.; Sugar, Gary L., Signal pulse detection scheme for use in real-time spectrum analysis.
    상세보기
  20. Kloper,David S.; Kane,Brian F.; Sugar,Cary L., Signal pulse detection scheme for use in real-time spectrum analysis.
    상세보기
  21. Sugar,Gary L.; Diener,Neil R.; Miller,Karl A., System and method for classifying signals occuring in a frequency band.
    상세보기
  22. Miller,Karl A., System and method for classifying signals using timing templates, power templates and other techniques.
    상세보기
  23. Hoogerwerf David N. ; Stanhope David M., System and method for collection of transmission characteristics.
    상세보기
  24. Kaplan Dmitry ; Sharma Chetan, System and method for detection of fraud in a wireless telephone system.
    상세보기
  25. Otterson Scott D. ; Kaplan Dmitry, System and method for detection of fraud in a wireless telephone system.
    상세보기
  26. Kaplan Dmitry ; Sharma Chetan ; McKernan Randy, System and method for detection of redial fraud in a cellular telephone system.
    상세보기
  27. Sugar, Gary L., System and method for identifying wireless devices using pulse fingerprinting and sequence analysis.
    상세보기
  28. Diener,Neil R.; Kloper,David S.; Floam,D. Andrew, System and method for monitoring and enforcing a restricted wireless zone.
    상세보기
  29. Sugar, Gary L.; Miller, Karl A.; Baek, Jong Sup, System and method for real-time spectrum analysis in a communication device.
    상세보기
  30. Sugar,Gary L.; Miller,Karl A.; Baek,Jong Sup, System and method for real-time spectrum analysis in a communication device.
    상세보기
  31. Sugar,Gary L.; Miller,Karl A.; Baek,Jong Sup, System and method for real-time spectrum analysis in a radio device.
    상세보기
  32. Sugar, Gary L.; Diener, Neil R.; Miller, Karl A., System and method for signal classiciation of signals in a frequency band.
    상세보기
  33. Kaplan Dmitry ; Stanhope David M. ; McKernan Randolph W. ; Wilburn Howard L. ; Green Evan R., System and method for the verification of authentic telephone numbers in a wireless telephone system.
    상세보기
  34. Baumann William John, User authentication in a communication system utilizing biometric information.
    상세보기
  35. Stoddard Robert Eugene ; McKinley Michael Shaw, Validation method and apparatus for preventing unauthorized use of cellular phones.
    상세보기
  36. Kaplan Dmitry ; Stanhope David M., Waveform collection for use in wireless telephone identification.
    상세보기

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