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1. 发明专利

JP2009281882A Radar transceiver and radar device 审中-公开
标题翻译：雷达收发器和雷达装置
公开(公告)号：JP2009281882A
公开(公告)日：2009-12-03
申请号：JP2008134555
申请日：2008-05-22
申请人： Fujitsu Ten Ltd , Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 富士通テン株式会社 , 株式会社豊田中央研究所
发明人： HONDA KANAKO , IKUNO MASAYOSHI , SAKAGUCHI MASAHIRO , OGAWA MASARU , YAMADA NAOYUKI
IPC分类号： G01S13/34
摘要： PROBLEM TO BE SOLVED: To provide a radar transceiver capable of sampling a frequency difference signal of a transmission/reception signal with a minimal configuration.
SOLUTION: The radar transceiver comprises: an antenna part for transmitting a radar signal as a transmission signal and receiving the transmission signal reflected on an object as a reception signal; a switching means for switching either the transmission signal or the reception signal by a switching frequency signal; a mixer for generating a first frequency difference signal of the radar signal and the reception signal; and a sampling part for sampling the first frequency difference signal in synchronization with the switching frequency and for detecting a second frequency difference signal of the radar signal and the reception signal. As the second frequency difference signal can be directly sampled from the first frequency difference signal, a mixer etc. for generating a frequency difference signal of the first frequency difference signal and the switching frequency signal can be omitted.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够以最小配置对发送/接收信号的频差信号进行采样的雷达收发器。解决方案：雷达收发器包括：天线部分，用于发送雷达信号作为发送信号，并接收反射在对象上的发送信号作为接收信号; 切换装置，用于通过开关频率信号切换发送信号或接收信号; 用于产生雷达信号和接收信号的第一频差信号的混合器; 以及采样部，用于与开关频率同步地对第一频率差信号进行采样，并且用于检测雷达信号和接收信号的第二频差信号。由于可以从第一频差信号直接采样第二频差信号，所以可以省略用于产生第一频差信号和开关频率信号的频差信号的混频器等。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2004294092A Fm-cw radar apparatus shared for transmission and reception 有权
标题翻译： FM-CW雷达设备共享传输和接收
公开(公告)号：JP2004294092A
公开(公告)日：2004-10-21
申请号：JP2003083083
申请日：2003-03-25
申请人： Fujitsu Ten Ltd , 富士通テン株式会社
发明人： IKUNO MASAYOSHI
IPC分类号： G01S13/34 , G01S7/03 , G01S7/28 , G01S7/34 , G01S13/60 , G01S13/93
CPC分类号： G01S7/034 , G01S7/34 , G01S13/345
摘要： PROBLEM TO BE SOLVED: To provide an FM-CW radar shared for transmission and reception and capable of appropriately detecting a target without having to enlarging the dynamic range of a reception part and appropriately processing reception signals according to the distance to the target. SOLUTION: The FM-CW radar apparatus shared for transmission and reception changes over between transmission and reception by time shared control. Signal paths of a transmission system and a reception system are each provided with an amplifier. By controlling the gain of the amplifier provided for the signal path of the reception system or the gain of the amplifier provided for the signal path of the transmission system, gains at front end parts in reception timing sections or front end parts in transmission timing sections are controlled. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供共享用于发送和接收的FM-CW雷达，并且能够适当地检测目标，而不必扩大接收部分的动态范围，并根据到目标的距离适当地处理接收信号。解决方案：通过时间共享控制，在发送和接收之间传输和接收共享的FM-CW雷达装置发生变化。传输系统和接收系统的信号路径均设有放大器。通过控制为接收系统的信号路径提供的放大器的增益或为传输系统的信号路径设置的放大器的增益，发送定时部分中的接收定时部分或前端部分的前端部分的增益是受控。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004286555A Fm-cw radar apparatus shared for transmission and receiving 有权
公开(公告)号：JP2004286555A
公开(公告)日：2004-10-14
申请号：JP2003078246
申请日：2003-03-20
申请人： Fujitsu Ten Ltd , 富士通テン株式会社
发明人： IKUNO MASAYOSHI
IPC分类号： G01S7/35 , G01S13/34 , G01S13/58 , G01S13/93
CPC分类号： G01S7/034 , G01S7/352 , G01S7/354 , G01S13/345 , G01S13/584 , G01S13/931 , G01S2007/356
摘要： PROBLEM TO BE SOLVED: To reduce an FM (frequency modulation)-AM conversion noise, in an FM-CW (constant wave) radar apparatus shared for transmission and receiving.
SOLUTION: The apparatus, including a plurality of mixers for downconverting an IF signal, a plurality of switches respectively provided to the input side of the plurality of mixers, and a switch control part for controlling the plurality of switches to be turned on/off in different modes, selects the IF signal by the plurality of switches in the different modes, and supplies it to each of the plurality of mixers. The apparatus, including the plurality of mixers for downconverting the IF signal, the plurality of switches for controlling the duty ratios or the phases of respective local signals of the plurality of mixers, and the switch control part for controlling the plurality of switches to be turned on and off in the different modes, in which each of the plurality of mixers downconverts the IF signal by the local signal in the different modes.
COPYRIGHT: (C)2005,JPO&NCIPI

4. 发明专利

JP2004226158A Fm-cw radar device 审中-公开
公开(公告)号：JP2004226158A
公开(公告)日：2004-08-12
申请号：JP2003012175
申请日：2003-01-21
申请人： Fujitsu Ten Ltd , 富士通テン株式会社
发明人： IKUNO MASAYOSHI , HITOTSUYA MASAKI
IPC分类号： G01S7/35 , G01S13/34 , G01S13/58 , G01S13/93 , H01Q1/32 , H01Q3/22
CPC分类号： G01S13/584 , G01S7/35 , G01S13/345 , G01S13/931 , H01Q1/3233 , H01Q3/22
摘要： PROBLEM TO BE SOLVED: To provide an FM-CW radar device for simply detecting a stationary object on a road, more particularly an overbridge.
SOLUTION: A progressive wave type antenna is used as an antenna for transmission, and a means is provided for vertically changing the angle of a superimposed beam pattern of a transmission wave transmitted from the antenna. The angle of the beam pattern is vertically changed by this means in order to detect an overbridge. Further, a phase shifter is provided on either a transmission antenna or a reception antenna, or on a transmission-reception antenna for vertically changing the angle of the beam pattern by controlling the phase of a transmitted or received radiowave. The angle of the beam pattern is vertically changed by controlling the phase shifter, thus detecting an overbridge.
COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2011182082A Substrate structure and radar system 审中-公开
标题翻译：基板结构和雷达系统
公开(公告)号：JP2011182082A
公开(公告)日：2011-09-15
申请号：JP2010042542
申请日：2010-02-26
申请人： Fujitsu Ten Ltd , 富士通テン株式会社
发明人： OGUCHI KATSUYUKI , KAWAHARA SHINTARO , SHIGEI TAKASHI , IKUNO MASAYOSHI , MIYAKE HIROSHI , HONDA HIDENORI , IKEDA DAISUKE , YAMASHITA MASATO
IPC分类号： H01P1/04 , H01P3/12 , H01P5/02
摘要： PROBLEM TO BE SOLVED: To provide a technology for preventing leakage of an electromagnetic wave to be transmitted in a waveguide to be formed by joining a plurality of substrates from a substrate joining surface.
SOLUTION: In the electromagnetic wave whose frequency changes in time between an upper limit frequency and a lower limit frequency, a choke groove having a depth corresponding to a predetermined position from the waveguide is provided at a position corresponding to the wavelength of a frequency to be selected from a range from the upper limit frequency to the lower limit frequency. In addition, a choke groove having a depth corresponding to the predetermined position from the waveguide is provided at a position corresponding to the wavelength of a frequency different from the frequency to be selected from the range from the upper limit frequency to the lower limit frequency. Thus, the leakage of the electromagnetic wave from the joining surface of the plurality of substrates is prevented.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种技术，用于防止通过从基板接合表面接合多个基板而形成的波导中要传输的电磁波的泄漏。解决方案：在频率在上限频率和下限频率之间频率变化的电磁波中，在与波导的波长相对应的位置处设置具有与波导的预定位置相对应的深度的阻流槽频率从上限频率到下限频率的范围中选择。此外，在与从上限频率到下限频率的范围中选择的频率不同的频率的波长的位置处，设置具有与波导的预定位置对应的深度的扼流槽。因此，防止电磁波从多个基板的接合表面泄漏。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2004096206A Waveguide / planar line converter, and high frequency circuit apparatus 审中-公开
标题翻译：波导/平面线转换器和高频电路设备
公开(公告)号：JP2004096206A
公开(公告)日：2004-03-25
申请号：JP2002251508
申请日：2002-08-29
申请人： Fujitsu Ten Ltd , 富士通テン株式会社
发明人： IKUNO MASAYOSHI
IPC分类号： H01P5/107
CPC分类号： H01P5/107
摘要： PROBLEM TO BE SOLVED: To provide a waveguide / planar line converter capable of simplifying the assembling process and accurately positioning a signal line. SOLUTION: The waveguide / planar line converter is provided with: an enclosure 10 having a waveguide 10a; and a waveguide / planar line conversion substrate 11 on one principal side of which a signal line 11b for propagating a high frequency signal is formed and on the other principal side of which a ground layer 11d is formed. Further, in the waveguide / planar line converter wherein one end of the signal line 11b on the waveguide / planar line conversion substrate 11 is placed so as to be projected into the waveguide 10a, and the waveguide / planar line conversion substrate 11 is placed on the entire upper face of the enclosure 10 in a way of choking an opening face of the waveguide 10a. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供能够简化组装过程并精确定位信号线的波导/平面线转换器。解决方案：波导/平面线转换器设置有：具有波导10a的外壳10; 并且在一个主侧上形成用于传播高频信号的信号线11b并且在另一个主侧上形成有接地层11d的波导/平面线转换基板11。此外，在波导/平面线转换器中，波导/平面线转换基板11上的信号线11b的一端被放置成投影到波导10a中，并且将波导/平面线转换基板11放置在外壳10的整个上表面以阻碍波导10a的开口面的方式。版权所有（C）2004，JPO

7. 发明专利

JP2008304406A Radar system 审中-公开
标题翻译：雷达系统
公开(公告)号：JP2008304406A
公开(公告)日：2008-12-18
申请号：JP2007153551
申请日：2007-06-11
申请人： Fujitsu Ten Ltd , 富士通テン株式会社
发明人： IKUNO MASAYOSHI , HONDA KANAKO , YAMANO SHINICHI
IPC分类号： G01S7/02 , G01S13/34
摘要： PROBLEM TO BE SOLVED: To provide a radar system further reducing costs of parts than a conventional one in which a mixer is connected to each reception antenna, and further improving angular detection performance than the conventional one in which a plurality of reception antennas are connected to a mixer via a switch. SOLUTION: The radar system includes: a first SW 52A switching connection with the first and second reception antennas; a second SW 52B switching connection with the second and third reception antennas; a first mixer 32A mixing a reception signal obtained via the first SW 52A and a part of a transmission signal to output a beat signal; and a second mixer 32B mixing a reception signal obtained via the second SW 52B and a part of a transmission signal to output a beat signal. The first SW 52A and the second SW 52B are switch controlled so as to be in a connection to two reception antennas out of the first to third reception antennas. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种进一步降低部件成本的雷达系统，其比混合器连接到每个接收天线的传统方式更为有效，并且进一步提高了角度检测性能，其中多个接收天线通过开关连接到混合器。解决方案：雷达系统包括：与第一和第二接收天线的第一SW 52A切换连接; 与第二和第三接收天线的第二SW 52B切换连接; 混合经由第一SW 52A获得的接收信号和发送信号的一部分的第一混频器32A，以输出拍频信号; 以及混合经由第二SW 52B获得的接收信号和发送信号的一部分的第二混频器32B，以输出拍频信号。开关控制第一SW 52A和第二SW 52B，使其与第一至第三接收天线中的两个接收天线连接。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2002122661A FM-CW RADAR OF 1 ANTENNA TIME SHARING CONTROL SYSTEM 失效
公开(公告)号：JP2002122661A
公开(公告)日：2002-04-26
申请号：JP2000312173
申请日：2000-10-12
申请人： FUJITSU TEN LTD
发明人： IKUNO MASAYOSHI
IPC分类号： G01S7/03 , G01S7/28 , G01S7/34 , G01S13/34
摘要： PROBLEM TO BE SOLVED: To prevent a transmission power from being leaked to a receiving system through a transmission/receiving changeover part by improving separation between the transmission and the receiving in a FM-CW radar of 1 antenna time sharing control system. SOLUTION: Amplifiers are provided in signal paths of the transmission system and the receiving system respectively and the amplifier provided in the transmission system and the amplifier provided in the receiving system are alternately operated according to the timing of the transmission and the receiving so as to change over between the transmission and the receiving. The amplifiers are operated by controlling the again of the amplifiers. The amplifiers are turned on/off by controlling the gain.

9. 发明专利

JP2000147087A GAIN CONTROL DEVICE AND METHOD FOR MILLIMETER-WAVE RADAR 失效
公开(公告)号：JP2000147087A
公开(公告)日：2000-05-26
申请号：JP32094398
申请日：1998-11-11
申请人： FUJITSU TEN LTD
发明人： KAJIOKA HIDEKI , IKUNO MASAYOSHI , KISHIDA MASAYUKI , YAMANO SHINICHI
IPC分类号： G01S7/285 , G01S13/34 , G01S13/93
摘要： PROBLEM TO BE SOLVED: To control gain with a simple means and to prevent saturation of waveforms of reception signals by a method, wherein when a reception level reaches a level in which a reception part saturates, a transmission output or a reception input is turned off. SOLUTION: After beat signals output from a mixer 9 are amplified by an amplifier 21, they pass though a filter 23 and are input into a decision circuit 24, and are input into a DSP(digital signal processor) and microcomputer 13. Receiving control signals a, b from the DSP and the microcomputer 13, ON-OFF drive signals SWT are fed from a transmission side drive control part 25 into Amp (T), and on-off drive signals SWR are fed from a reception side drive control part 26 into an Amp (R), respectively. OFF control signals c are fed from the DSP and microcomputer 13 into the transmission side drive control part 25 and reception side drive control part 26. When the reception part reaches a saturation level, one of the transmission output and reception input is turned off, thereby controlling the gain.

10. 发明专利

JPH06186323A RADAR FAULT DETECTION CIRCUIT 失效
公开(公告)号：JPH06186323A
公开(公告)日：1994-07-08
申请号：JP33567092
申请日：1992-12-16
申请人： FUJITSU LTD , FUJITSU TEN LTD
发明人： SHIRATORI HIDEKI , SUZUKI HIROSHI , IKUNO MASAYOSHI
IPC分类号： G01S7/40
摘要： PURPOSE:To provide a circuit for detecting fault of a radar that prevents misunderstanding of information due to fault, by detecting fault of a mixer which is a component of a radar. CONSTITUTION:A power source 15 applies a valiable voltage V1 to an active element 50 constituting a mixer of a radar, and at that time, current I1 flowing through the active element 50 is measured by a current measurement means 16. The reference current value 12 outputted, according to the variable voltage V1, from a reference current output means 17 by the supply of the variable voltage V1, and the previously measured measurement current value I1' are compared with each other in specified points by a comparison/decision means 18, and if no relationship is found, alarm signal S1 that reports abnormality in the active element 50 is outputted.

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