[특허]Vehicular anticollision radar system for driving in the fog

[미국특허] Vehicular anticollision radar system for driving in the fog 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-013/93 G01S-013/48
출원번호	US-0474812 (1990-06-29)
우선권정보	IT-0047545 (1988-01-18)
국제출원번호	PCT/IT89/00002 (1989-01-16)
§371/§102 date	19900629 (19900629)
국제공개번호	WO-8906808 (1989-07-27)
발명자 / 주소	Paoletti Paolo A. (No. 62 Via Luigi Rizzo 00136 Roma ITX)
인용정보	피인용 횟수 : 32 인용 특허 : 0

초록 ▼

The space ahead of a moving vehicle is irradiated in sectors (A-G) by a plurality of CW solid state radar devices mounted as an array across the front of the vehicle, such that adjacent lobes of each beam may overlap. The radar signal comprises a CW beam modulated intermittently by a slightly offset frequency to produce ‘pulses’which when reflected from obstacles within respective sectors (A-G) are detected by mixer diodes in one, or two adjacent radar devices after a time delay which, measured, yields a distance to the obstacle. Obstacles so detected may be displayed in two dimensions within their respective sector (A-G) on a display projected onto the windscreen.

대표청구항 ▼

A vehicular anticollision radar system for driving in foggy condition having a bidimensional display device adapted for direct vision or for projecting an image of the space in front of the vehicle upon its windscreen, so as to furnish a symbolic representation of an obstacle with information as to its distance (R) and angular position (Z) with respect to the vehicle, characterized in that it comprises an oscillator circuit to generate a continuous square wave signal with a period t1) responsive to said square wave signal from said oscillator circuit and a second voltage (V2) responsive to said square wave frequency-divided signal from the frequency divider circuit; said modulator circuit being also adapted to normally furnish said first voltage (V1) through said n output terminals and to successively furnish said second voltage (V2) through said n output terminals in turn to n varactor diodes included in n resonant cavities each of which also includes a Gunn diode and a Schottky diode, respectively; said Gunn diodes generating a radiofrequency signal and being individually connected to n horn type or parabolic type fixed transmitting-receiving antennas; said Schottky diodes revealing echo signals received by said antennas and being connected to n variable gain amplifier circuits the outputs of which are individually connected to n comparator circuits to which also said counter is connected and wherein comparisons are made between the output signals of said amplifier circuits and the count signal (k) of said counter circuit so as to furnish a first signal (R) responsive to the time needed by a signal emitted from one of said antennas to reach an obstacle and to return upon reflection therefrom to one or more of said antennas and a second signal (Z) responsive to and representative of which of these antennas receive(s) an echo signal as well as a logic and display circuitry which is connected to said frequency divider circuit and to said comparator circuits so as to receive said P.R.F., R and Z signals in order to accordingly drive said bidimensional display device.

이 특허를 인용한 특허 (32) 인용/피인용 타임라인 분석

Pleva, Joseph S.; Delcheccolo, Michael Joseph, Antenna configurations for reduced radar complexity.
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Pleva,Joseph S.; Delcheccolo,Michael J., Antenna configurations for reduced radar complexity.
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Pleva,Joseph S.; Delcheccolo,Michael Joseph, Antenna configurations for reduced radar complexity.
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Abe, Akira; Kobayashi, Takayuki, Antenna unit, radar device, and composite sensor device.
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Russell Mark E. ; Miccioli William F., Automotive forward looking sensor architecture.
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Lohmeier, Stephen P.; Nguyen, Nguyen D., Automotive radar sensor blockage detection system and related techniques.
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Nebiyeloul-Kifle, Yonas; Woodington, Walter Gordon, Automotive side object detection sensor blockage detection system and related techniques.
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Dean Michael,GBX ; Hodges Robert D,GBX, Collision warning system.
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Takagi Kiyokazu (Toyokawa JPX) Hoashi Yoshiaki (Toyota JPX), Distance measuring apparatus for automotive vehicles that compensates for the influence of particles floating in the air.
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Yu, Kai-Bor; Fernandez, Manuel F.; Bachmann, Svetlana M., Enhanced-resolution phased array radar.
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Kang, Yu-Hsuan, Frequency divider and control method thereof.
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Cannizzaro, Giovanna; Manganelli, Patrizia; Matteagi, Elisa; Raniolo, Alessandro, Managing vehicle detection.
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Kikuchi, Hayato; Fujita, Yasuhiko; Arai, Toshiaki; Tsuchiya, Yoshikazu; Sato, Makoto; Nanno, Kunio, Method for estimating relative speed between vehicle and objective obstacle.
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Iihoshi Akira (Wako JPX) Tohya Ken-ichi (Wako JPX), Multibeam radar system.
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Delcheccolo, Michael Joseph; Russell, Mark E.; Woodington, Walter Gordon; Pleva, Joseph S.; Firda, John M.; Van Rees, H. Barteld, Near object detection system.
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Delcheccolo, Michael Joseph; Russell, Mark E.; Woodington, Walter Gordon; Pleva, Joseph S.; Van Rees, H. Barteld, Near object detection system.
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Russell, Mark E.; Delcheccolo, Michael Joseph; Firda, John M., Path prediction system and method.
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Dooi,Yoshikazu; Ishii,Satoshi; Yatsuka,Hiroyuki; Shima,Nobukazu; Hitotsuya,Masaki, Radar apparatus, radar apparatus controlling method.
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Woodington, Walter Gordon; Delcheccolo, Michael Joseph; Pleva, Joseph S.; Russell, Mark E.; Van Rees, H. Barteld, Radar detection method and apparatus.
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Woodington, Walter Gordon; Delcheccolo, Michael Joseph; Pleva, Joseph S.; Russell, Mark E.; Van Rees, H. Barteld, Radar detection method and apparatus.
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Woodington,Walter Gordon; Delcheccolo,Michael Joseph; Pleva,Joseph S.; Russell,Mark E.; Van Rees,H. Barteld, Radar detection method and apparatus.
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Ogawa, Masaru, Radar system.
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Woodington, Walter Gordon; Delcheccolo, Michael Joseph; Pleva, Joseph S.; Russell, Mark E.; Van Rees, H. Barteld; Hanson, James T., Radar transmitter circuitry and techniques.
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Russell, Mark E.; Delcheccolo, Michael Joseph; Woodington, Walter Gordon; Van Rees, H. Barteld; Firda, John Michael; Lippert, Delbert, Safe distance algorithm for adaptive cruise control.
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Boecker,Juergen; Braeuchle,Goetz, Sensor arrangement and method for regulating the distance of motor vehicles.
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Mende,Ralph, Sensor for transmitting and receiving electromagnetic signals.
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Paoletti, Paolo Alberto, Surveillance system with radio-wave camera.
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Pleva, Joseph S.; Breglia, Caroline; French, Thomas W.; Woodington, Walter Gordon; Delcheccolo, Michael Joseph; Russell, Mark E.; Van Rees, H. Barteld, Switched beam antenna architecture.
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Suzuki, Koichiro; Yamano, Chiharu; Natsume, Kazuma, Target detecting apparatus using electronically agile radar.
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Pleva, Joseph S.; Russell, Mark E.; Woodington, Walter Gordon; Delcheccolo, Michael Joseph; Van Rees, H. Barteld, Technique for changing a range gate and radar coverage.
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Pleva, Joseph S.; Russell, Mark E.; Woodington, Walter Gordon; Delcheccolo, Michael Joseph; Van Rees, H. Barteld, Technique for changing a range gate and radar for coverage.
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Hanson, James T.; Woodington, Walter Gordon; Delcheccolo, Michael Joseph; Pleva, Joseph S.; Russell, Mark E.; Van Rees, H. Barteld, Video amplifier for a radar receiver.
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A	생활필수품
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[미국특허] Vehicular anticollision radar system for driving in the fog 원문보기

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