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31. 发明专利

JPH0216996B2 失效
公开(公告)号：JPH0216996B2
公开(公告)日：1990-04-19
申请号：JP18842782
申请日：1982-10-27
申请人： FUJITSU TEN LTD
发明人： AGARI YOSHIHIDE
IPC分类号： G01S7/36 , G01S13/34

32. 发明专利

JPH0216878B2 失效
公开(公告)号：JPH0216878B2
公开(公告)日：1990-04-18
申请号：JP9016782
申请日：1982-05-27
申请人： FUJITSU TEN LTD
发明人： AGARI YOSHIHIDE
IPC分类号： G01S7/02 , G01S7/35 , G01S7/42 , G01S13/34 , G01S13/50

33. 发明专利

JPH01285815A COMPUTING METHOD AND APPARATUS FOR RADIUS OF CURVATURE OF RUNNING OF AUTOMOBILE AND MEASURING APPARATUS OF DISTANCE TO OBSTACLE IN FRONT USING IT 失效
公开(公告)号：JPH01285815A
公开(公告)日：1989-11-16
申请号：JP11609388
申请日：1988-05-12
申请人： FUJITSU TEN LTD
发明人： AGARI YOSHIHIDE
IPC分类号： G01C21/00 , G01R33/02 , G01S13/93 , G01V3/15
摘要： PURPOSE:To enable the prevention of false measurement, by computing the radius of curvature of running of a vehicle body on the basis of a vehicle speed and a change rate with time of an angle formed by the direction of advance of the vehicle body and the direction of geomagnetism, and by limiting the range of a distance to be measured in accordance with the radius. CONSTITUTION:Outputs of a geomagnetic sensor 4 and a vehicle speed sensor 5 are given to a processing circuit 32, change rates with time of the intensity and direction of a magnetic field existing around the sensor 4 and a running speed are determined, the radius of curvature of a running track is determined on the basis of the values determined in the above, and based on the value of said radius, and a contact of a switch S is selected in accordance with a reference. A transmission wave W1 is emitted to a vehicle 7 going ahead and a reflected wave W2 is given to a mixer 24 and mixed with a part of the transmission signal wave. An output signal of the mixer 24 is given to an amplifier circuit 31, and thereby a wave of a frequency component being a difference between said two waves is extracted, amplified and given to the switch S. Then, by the contact selected by the processing circuit 32, any one of BPFs 33-35 being different in a band width from one another is selected. In other words, a measurable range of a distance in front is set to be larger as the radius of curvature increases.

34. 发明专利

JPS61229647A CAR JACK-UP DETECTOR 失效
公开(公告)号：JPS61229647A
公开(公告)日：1986-10-13
申请号：JP7117685
申请日：1985-04-05
申请人： FUJITSU TEN LTD
发明人： AGARI YOSHIHIDE
IPC分类号： G01S13/58 , B60R25/10 , B60R25/30 , B60R25/34 , G01S13/88 , G08B15/00
摘要： PURPOSE:To prevent tires from being stolen by providing a direction identification doppler radar detecting the relative movement direction between a car body and a road and correctly identifying vibration of the car body due to the wind or artificial sway of the car body and the relative movement between the car body and road due to jack-up. CONSTITUTION:A sensor section for transmitting/receiving observation waves of a direction identification doppler radar 1 is fitted at the front section or rear section of a car body so as to face a road, and whether the front section or rear section of the car body is being moved in the approaching or departing direction in relation with the road is detected. This detection signal is fed into a reverse cycle detecting means 2, where the reverse cycle of the relative movement direction between the car body and road is detected. The reverse cycle detected by the means 2 is compared with the predetermined reference value, and if the detection signal of the reverse cycle is larger than the predetermined reference signal, a warning means is operated. Accordingly, the jack-up while tires are stolen is reliably detected with no erroneous operation, thus the theft of tires is prevented.

35. 发明专利

JPS61173308A PARAMETER SETTING DEVICE 失效
公开(公告)号：JPS61173308A
公开(公告)日：1986-08-05
申请号：JP1303885
申请日：1985-01-26
申请人： FUJITSU TEN LTD
发明人： AGARI YOSHIHIDE
IPC分类号： G01R27/26 , G05B15/02
摘要： PURPOSE:To set parameter with simple hardware by detecting the value of a variable resistance as a time corresponding to the time constant of a time constant circuit, and obtaining the parameter value from the detected time and the content of memory that stores a parameter value of each time. CONSTITUTION:A resistance value R of a variable resistance 1a corresponds uniquely to the time constant (r) of a time constant circuit 1, and a time measuring circuit 2 measures time T corresponding to the time constant (r). Accordingly, the time T corresponds uniquely to the resistance value R of the variable resistance 1a. Parameter values corresponding to each value of the time T are stored beforehand in a storage circuit 3 and consequently, the resistance value R of the resistance 1a corresponds uniquely to the parameter value. Thus, for instance, parameter values corresponding to resistance values are graduated on the knob of the resistance 1a. When the resistance value of the resistance 1a is changed to a resistance value corresponding to a parameter value to be set, and time T corresponding to the time constant (r) of the circuit 1 is measured by the circuit 2, the parameter value stored in the circuit 3 is searched from the time T, and the parameter value is set.

36. 发明专利

JPS5979175A Fm-cw radar 失效
标题翻译： FM-CW雷达
公开(公告)号：JPS5979175A
公开(公告)日：1984-05-08
申请号：JP18842782
申请日：1982-10-27
申请人： Fujitsu Ten Ltd
发明人： AGARI YOSHIHIDE
IPC分类号： G01S7/36 , G01S13/34
CPC分类号： G01S13/34
摘要： PURPOSE:To prevent the malfunction due to radio interference by interrupting a frequency modulated wave for a random time at every prescribed cycle by a frequency change interrupting means and taking out a beat signal between a part of a received wave and that of transmitted wave through an LPF and subjecting this beat signal to signal processing. CONSTITUTION:Though a transmitting part 1 transmits the frequency modulated wave changing the frequency as prescribed, the wave is interrupted for a random time at every prescribed cycle by a frequency change interrupting means 2. The beat signal between a part of the received wave and that of the transmitted wave is detected by a receiving part 3 and is allowed to pass through an LPF 4, and only the beat signal due to disturbing waves is attenuated to take out the beat signal. The beat frequency is counted at every prescribed time by a beat frequency counter 5, and the difference between current and preceding beat frequencies is obtained by a beat frequency change detecting part 6. When this difference exceeds a certain threshold, a signal indicating the influence of a disturbing wave is outputted. As the result, the malfunction due to radio interference is prevented by signal processing.
摘要翻译：目的：为了防止由于无线电干扰造成的故障，通过频率切换中断装置在每个规定的周期中断随机时间的频率调制波，并且通过一个接收波的一部分和发射波的一部分之间取出差分信号 LPF，并对该拍频信号进行信号处理。构成：虽然发送部1发送按规定改变频率的频率调制波，但是通过频率变化中断装置2在每个规定的周期内对随机时间中断波。接收波的一部分之间的差拍信号与接收波的一部分之间的拍频信号。的发送波被接收部分3检测并被允许通过LPF 4，并且仅由于干扰波而产生的拍频信号被衰减以取出拍频信号。通过拍子频率计数器5在每个规定时间对拍频进行计数，并且通过拍频变化检测部6获得当前和前一拍频之间的差。当该差超过某个阈值时，表示影响的信号输出干扰波。结果，通过信号处理防止了由无线电干扰引起的故障。

37. 发明专利

JP2000292537A RADAR 失效
公开(公告)号：JP2000292537A
公开(公告)日：2000-10-20
申请号：JP10019599
申请日：1999-04-07
申请人： TOYOTA MOTOR CORP , FUJITSU TEN LTD
发明人： TAGUCHI KOJI , AGARI YOSHIHIDE
IPC分类号： H01Q15/02 , G01S7/03 , G01S13/93 , H01Q1/42
摘要： PROBLEM TO BE SOLVED: To simultaneously monitor radar beams in a plurality of directions with a simple constitution by providing a transmitting/receiving antenna, and a radio wave separating means disposed on a front surface of the antenna to separate the radio wave into a plurality of directions. SOLUTION: The radar comprises a radar transmitter/receiver 10, a transmitting/receiving antenna 12, and a radome 14 provided on a front surface of the antenna 12. An oblique surface 14a is formed on a lower surface of the radome 14, and the radio wave is separated by a refracting operation of the surface 14a into a radio wave beam radiated forward by introducing the wave to a non-oblique surface 14b formed with no oblique surface 14a, and a radio wave beam radiated downward by refracting the wave by introducing the wave to the surface 14a. The beam radiated from forward of the non-oblique surface 14b of the radome 14 is reflected by a forward vehicle or the like. Meanwhile, the beam radiated down from the surface 14a of the radome 14 is reflected on a road surface or a lane marker on the road surface, and supplied to the transmitter/receiver 10 through the antenna 12.

38. 发明专利

JP2000214246A OBJECT DETECTING DEVICE 失效
公开(公告)号：JP2000214246A
公开(公告)日：2000-08-04
申请号：JP1741999
申请日：1999-01-26
申请人： TOYOTA MOTOR CORP , FUJITSU TEN LTD
发明人： TAGUCHI KOJI , AGARI YOSHIHIDE
IPC分类号： G01V3/12 , G01S7/03 , G01S7/42 , G01S13/93
摘要： PROBLEM TO BE SOLVED: To detect an object by surely receiving a reflection electronic wave from an electronic wave reflector that is provided at the object. SOLUTION: A transmitter 10 for transmitting a linear polarization electronic wave is provided at a vehicle A, and a reflector 12 and a polarizer 14 are provided at the rear portion of a vehicle B. The polarizer 14 converts an electronic wave that is reflected from the reflector 12 into circular polarization. Even if the distance between the reflection surface of the reflector 12 and the body of the vehicle B is equal to 1/4 wavelength λ of a transmission electronic wave, a reflection electronic wave from the reflector 12 and that from the body cannot be constantly canceled since they are circular polarization and linear polarization, respectively, thus receiving the reflection electronic wave from the reflector 12.

39. 发明专利

JPH10104343A RECEPTION METHOD FOR WAVE REFLECTOR DETECTION SIGNAL 失效
公开(公告)号：JPH10104343A
公开(公告)日：1998-04-24
申请号：JP25640196
申请日：1996-09-27
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CORP
发明人： AGARI YOSHIHIDE
IPC分类号： G01S13/60 , G01S13/91
摘要： PROBLEM TO BE SOLVED: To correct the effect of disturbance due to vertical vibration of vehicle body and reduce the error by vertically irradiating road surface with wave from a vehicle body, detecting vertical vibration of the vehicle body based on Dappler effect from the deviation of frequency of reflection wave and correcting the reception level of the reflection wave from a wave reflector. SOLUTION: A Doppler sensor 10 has an antenna 18 similarly provided in the lower part of vehicle body to antennas 15 and 16. The wave received with the antennas 15 and 16 is detected as high frequency signal and converted to intermediate frequency(IF) signal from the high frequency signal supplied with a local oscillator 19. A lane marker detector 20 compares signal level after converted from the wave detected with antennas 15 and 16 to the IF signal and measures and detects the position of the lane marker to the vehicle body 13. The measured value of position is corrected from the timing of vertical vibration of the vehicle detected with the Doppler sensor 10 and thus measurement accuracy is improved.

40. 发明专利

JP2548354B2 失效
公开(公告)号：JP2548354B2
公开(公告)日：1996-10-30
申请号：JP1933289
申请日：1989-01-27
申请人： FUJITSU TEN LTD
发明人： ISAJI OSAMU , AGARI YOSHIHIDE , YAMADA YUKINORI , IWATA HITOSHI
IPC分类号： G01S13/34 , G01S13/50

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