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Multichannel homodyne receiver 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01S-013/78
출원번호 US-0226283 (1981-01-19)
발명자 / 주소
  • Landt Jeremy A. (Los Alamos NM)
출원인 / 주소
  • The United States of America as represented by the United States Department of Energy (Washington DC 06)
인용정보 피인용 횟수 : 60  인용 특허 : 2

초록 ▼

A homodyne radar transmitter/receiver device which produces a single combined output which contains modulated backscatter information for all phase conditions of both modulated and unmodulated backscatter signals. The device utilizes taps along coaxial transmission lines, strip transmission line, an

대표청구항 ▼

A homodyne radar transmitter/receiver device comprising: microwave source means for producing a microwave transmission signal; a combination transmitter/receiver antenna for transmitting said microwave transmission signal and detecting both modulated and unmodulated backscatter signals; transmission

이 특허에 인용된 특허 (2)

  1. Gabbitas Colin (Malmesbury GB2), Microwave components.
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  2. Cole Martin T. (East Bentleigh AUX), Microwave intrusion or movement detectors.
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이 특허를 인용한 특허 (60)

  1. Shober R. Anthony ; Sweetman Eric ; Wu You-Sun, Antenna array in an RFID system.
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  2. Anthonyson Robert B., Automated vehicle parking system for a plurality of remote parking facilities.
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  3. Anthonyson, Robert B., Automated vehicle parking system for a plurality of remote parking facilities.
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  4. Robert B. Anthonyson, Automated vehicle parking system for a plurality of remote parking facilities.
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  5. Hughes, Michael A.; Pratt, Richard M., Challenged-based tag authentication model.
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  6. Carrender, Curtis Lee, Distance/ranging by determination of RF phase delta.
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  7. Carrender, Curtis Lee; Price, John M., Distance/ranging determination using relative phase data.
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  8. Kodukula Venkata S. Rao ; Duan Dah-Weih ; Brady Michael John, Distributed impedance matching circuit for high reflection coefficient load.
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  9. MacLellan John Austin ; Vannucci Giovanni, Encryption for modulated backscatter systems.
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  10. MacLellan John Austin ; Shober R. Anthony ; Vannucci Giovanni, Enhanced uplink modulated backscatter system.
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  11. Carrender, Curt, Full-spectrum passive communication system and method.
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  12. Barink, Bernard; d'Hont, Loek J., Homodyne RFID receiver and method.
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  13. Barink,Bernard; d'Hont,Loek J., Homodyne RFID receiver and method.
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  14. Barink,Bernard; d'Hont,Loek J., Homodyne RFID receiver and method.
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  15. Barink,Bernard; Havlicek,Gregory G.; Bishop,Gary M.; d'Hont,Loek J., Homodyne single mixer receiver and method therefor.
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  16. Wu You-Sun ; Shober R. Anthony, IQ combiner technology in modulated backscatter system.
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  17. Shober R. Anthony, In-building modulated backscatter system.
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  18. Shober R. Anthony ; Sweetman Eric ; Wright Gregory Alan, Inexpensive modulated backscatter reflector.
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  19. Spencer Donald B. (Federal Way WA), Instrusion detection system.
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  20. Daniel L. Neagley ; Scott D. Briles ; Don M. Coates ; Samuel M. Freund, Long-range, full-duplex, modulated-reflector cell phone for voice/data transmission.
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  21. Jessup,Steven C., Low cost RFID labeling device.
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  22. Jessup,Steven; Hicksted,Richard L.; Spahr,Michael A., Low cost RFID system.
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  23. Brady Michael John ; Duan Dah-Weih ; Kodukula Venkata S. R., Magnetic tape storage media having RFID transponders.
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  24. Larsen Lawrence E. (308 Hamilton Ave. Silver Spring MD 20901), Method and apparatus for cardiac hemodynamic monitor.
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  25. Beauvillier Luc ; Brady Michael John ; Duan Dah-Weih ; Friedman Daniel J. ; Moskowitz Paul Andrew ; Murphy Philip, Method and apparatus for testing RFID tags.
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  26. Brady Michael John ; Duan Dah-Weih, Method and apparatus for wireless radio frequency testing of RFID integrated circuits.
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  27. Albert,Olaf; Gila,Janos; Konrad,Wolfgang; Schiefer,Martin; Veith,Peter Ernst, Method and system for data communication between a read/write device and a mobile memory device based on transfer-time measurement.
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  28. Greeff Roy ; Ovard David, Method of communications in a backscatter system, interrogator, and backscatter communications system.
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  29. Greeff Roy ; Ovard David K., Method of communications in a backscatter system, interrogator, and backscatter communications system.
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  30. Greeff Roy ; Ovard David K., Method of communications in a backscatter system, interrogator, and backscatter communications system.
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  31. Ertin,Emre; Pratt,Richard M.; Hughes,Michael A.; Priddy,Kevin L.; Lechelt,Wayne M., Method of simultaneously reading multiple radio frequency tags, RF tags, and RF reader.
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  32. Pratt, Richard M.; Thompson, Steven B., Methods of processing a wireless communication signal, wireless communication synchronization methods, and a radio frequency identification device communication method.
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  33. Jei, Dae-Gunn; Park, Seo-Young, Mobile terminal circuit including an RFID tag and wireless identification method using the same.
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  34. Jei,Dae Gunn; Lee,Yong Han, Mobile terminal having smart card coupled with RFID tag and method for performing RFID function in such mobile terminal.
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  35. Pidwerbetsky Alex ; Shober R. Anthony, Modulated backscatter location system.
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  36. Veghte Richard L. ; Carrender Curtis L., Modulated backscatter microstrip patch antenna.
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  37. Carrender, Curtis Lee; Gilbert, Ronald W., Multi-frequency communication system and method.
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  38. Steele, Kerry D.; Anderson, Gordon A.; Gilbert, Ronald W., Multi-level RF identification system.
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  39. Carrender,Curtis Lee; Gilbert,Ronald W., Phase modulation in RF tag.
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  40. John Austin MacLellan ; R. Anthony Shober ; Giovanni Vannucci ; Gregory Alan Wright, QPSK modulated backscatter system.
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  41. Brady Michael John ; Coteus Paul W. ; Duan Dah-Weih ; Kodukula Venkata S. R. ; Moskowitz Paul Andrew ; Schrott Alejandro Gabriel ; Von Gutfeld Robert Jacob ; Ward James Peter, RFID integrated in electronic assets.
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  42. Hughes,Michael A.; Pratt,Richard M., RFID system and method including tag ID compression.
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  43. Pratt,Richard M.; Hughes,Michael A., Radio frequency identification devices, backscatter communication device wake-up methods, communication device wake-up methods and a radio frequency identification device wake-up method.
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  44. Brady Michael J. ; Duan Dah-Weih ; Kodukula Venkata S. R., Radio frequency identification system.
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  45. Michael John Brady ; Dah-Weih Duan ; Venkata S. R. Kodukula ; Paul Andrew Moskowitz, Radio frequency identification transponder having a reflector.
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  46. Duan Dah-Weih ; Heinrich Harley Kent, Radio frequency transponder with improved read distance.
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  47. Sugawara Hideo (Ohtawara JPX) Ashida Hideo (Ohtawara JPX), Radio-frequency identification system.
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  48. Carlin James W. (Holmdel NJ), Self-synchronous spread spectrum transmitter/receiver.
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  49. Martinez, Rene D., System and method for communicating with an RFID transponder with reduced noise and interference.
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  50. Landt, Jeremy A., System and method for measurement of distance to a tag by a modulated backscatter RFID reader.
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  51. Gravelle, Kelly; Landt, Jeremy; Lunsford, Patrick W., System and method for microwave ranging to a target in presence of clutter and multi-path effects.
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  52. Hughes,Michael A.; Pratt,Richard M., System and method to identify multiple RFID tags.
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  53. Brady Michael John ; Duan Dah-Weih ; Heinrich Harley Kent ; Kodukula Venkata S. R., System for controlling assets.
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  54. Bates, Benjamin G.; Hahn, Scott, Wireless communication systems and methods.
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  55. Bates, Benjamin G.; Hahn, Scott, Wireless communication systems, interfacing devices, communication methods, methods of interfacing with an interrogator, and methods of operating an interrogator.
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  56. Benjamin G. Bates ; Scott Hahn, Wireless communication systems, interfacing devices, communication methods, methods of interfacing with an interrogator, and methods of operating an interrogator.
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  57. Pratt, Richard M.; Thompson, Steven B., Wireless communication systems, radio frequency identification devices, methods of enhancing a communications range of a radio frequency identification device, and wireless communication methods.
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  58. Pratt, Richard M.; Thompson, Steven B., Wireless communications devices, methods of processing a wireless communication signal, wireless communication synchronization methods and a radio frequency identification device communication method.
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  59. Pratt,Richard M.; Thompson,Steven B., Wireless communications systems, radio frequency identification devices, wireless communications methods, and radio frequency identification device communications methods.
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  60. David Margin Poticny ; R. Anthony Shober, Wireless security system.
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