Portable FM-CW radar device with frequency conversion by first and
second frequencies
    1.
    发明授权
    Portable FM-CW radar device with frequency conversion by first and second frequencies 失效
    便携式FM-CW雷达设备,通过第一和第二频率进行频率转换

    公开(公告)号:US5381153A

    公开(公告)日:1995-01-10

    申请号:US183907

    申请日:1994-01-21

    IPC分类号: G01S7/35 G01S13/34 G01S13/42

    CPC分类号: G01S13/345 G01S7/35

    摘要: A FM-CW radar device is provided for frequency-modulating a high frequency signal with a modulation signal, transmitting the modulated high frequency signal, receiving a signal reflected by a target object and frequency-modulating the reflection signal with a signal generated by a local oscillator signal source provided by branching a portion of the transmitting signal. A modulator is disposed between a radar transmitting section and a transmitting antenna. The modulator modulates the transmitting signal with a second frequency which is far lower than the radar transmitting frequency and twice as much as the sum or the difference of a Doppler frequency generated by a relative propagation velocity and a beat frequency generated by a propagation delay time. A first frequency converter frequency modulates the received signal reflected by the target object with the local oscillator. A second frequency converter frequency modulates the received signal with the second frequency, the second frequency being far lower than the radar transmitting frequency and twice as much as the sum or the difference of a Doppler frequency generated by a relative propagation velocity and a beat frequency generated by a propagation delay time.

    摘要翻译: 提供了一种FM-CW雷达装置,用于对调制信号进行频率调制,发送调制的高频信号,接收由目标物体反射的信号,并用本地产生的信号对反射信号进行频率调制 振荡器信号源通过分支发送信号的一部分而提供。 调制器设置在雷达发射部分和发射天线之间。 调制器以比雷达发射频率低得多的第二频率来调制发射信号,是由相对传播速度产生的多普勒频率和由传播延迟时间产生的节拍频率的和的差值的两倍。 第一变频器利用本地振荡器对目标物体反射的接收信号进行频率调制。 第二频率转换器以第二频率调制接收信号,第二频率远低于雷达发射频率,是由相对传播速度和产生的拍频产生的多普勒频率之和或差值的两倍 通过传播延迟时间。

    Radar apparatus
    3.
    发明授权
    Radar apparatus 失效
    雷达装置

    公开(公告)号:US5940029A

    公开(公告)日:1999-08-17

    申请号:US27150

    申请日:1998-02-20

    CPC分类号: H01Q3/26 G01S13/4409 H01Q3/24

    摘要: An array antenna radar apparatus has a single front end shared by a plurality of antennas, a first switch for cyclically connecting the antennas to the front end at a prescribed switching frequency, and a second switch for cyclically connecting the output of the front end to frequency converters corresponding to the antennas. The frequency converters frequency-convert intermediate-frequency signals of the respective antennas output by the front end to baseband signals at the switching frequency. Phase shifters and amplitude adjusting units apply a phase shift or amplitude adjustment to the outputs of the frequency converters and combine the resulting signals, thereby making it possible to detect a target in a desired direction.

    摘要翻译: 阵列天线雷达装置具有由多个天线共享的单个前端,用于以规定的开关频率将天线循环地连接到前端的第一开关和用于将前端的输出与频率循环连接的第二开关 转换器对应于天线。 频率转换器将由前端输出的各个天线的中频信号以开关频率对基带信号进行频率转换。 移相器和幅度调整单元对频率转换器的输出端进行相移或幅度调整,并将结果信号组合起来,从而可以在期望的方向上检测目标。

    Radio interrogator system and radio communication method therefor
    4.
    发明授权
    Radio interrogator system and radio communication method therefor 有权
    无线电询问器系统及其无线电通信方法

    公开(公告)号:US08354916B2

    公开(公告)日:2013-01-15

    申请号:US11599097

    申请日:2006-11-14

    IPC分类号: H04Q5/22

    CPC分类号: G06K7/10356 G06K7/0008

    摘要: There is provided a radio interrogator system which reduces the interference with a radio transponder and avoids the decrease in throughput of the entire system in a case in which a plurality of radio interrogators are disposed at positions brought relatively close to each other and are simultaneously placed into operation.The plurality of radio interrogators are classified into two groups and each of the radio interrogators has an operation mode setting unit capable of exclusively setting, for each of the classified groups, a transmission mode for transmitting a radio transmission signal to a radio transponder or a reception mode for receiving a radio response signal transmitted from the radio transponder as a response to a radio transmission signal from the radio interrogator.

    摘要翻译: 提供了一种无线电询问器系统,其减少了与无线电转发器的干扰,并且在多个无线电询问器被布置在彼此相对靠近的位置的情况下避免了整个系统的吞吐量的降低,同时被放置在 操作。 多个无线电询问器被分为两组,每个无线电询问器具有操作模式设置单元,其能够针对每个分类的组专门设置用于将无线电发送信号发送到无线电转发器或接收的发送模式 用于接收从无线电应答器发送的无线电应答信号作为对来自无线电询问器的无线电发送信号的响应的模式。

    ANTENNA DEVICE AND SYSTEM INCLUDING ANTENNA DEVICE
    5.
    发明申请
    ANTENNA DEVICE AND SYSTEM INCLUDING ANTENNA DEVICE 审中-公开
    天线设备和包括天线设备的系统

    公开(公告)号:US20110128125A1

    公开(公告)日:2011-06-02

    申请号:US12905528

    申请日:2010-10-15

    IPC分类号: H04Q5/22

    摘要: An antenna device performs communications with an identification tag by being connected to a reading device that reads identification information of the identification tag. The antenna device includes a first power feeding unit configured to receive power from the reading device; a resonator that is electromagnetically coupled to the first power feeding unit, the resonator having a predetermined bandwidth including a working frequency of the reading device; and a second power feeding unit that is electromagnetically coupled to the resonator, the second power feeding unit being terminated according to a predetermined resistance value.

    摘要翻译: 天线装置通过连接到读取识别标签的识别信息的读取装置来执行与识别标签的通信。 天线装置包括被配置为从读取装置接收电力的第一馈电单元; 谐振器,其电磁耦合到所述第一馈电单元,所述谐振器具有包括所述读取装置的工作频率的预定带宽; 以及电磁耦合到所述谐振器的第二馈电单元,所述第二馈电单元根据预定的电阻值终止。

    Container And Wireless Tag Reading System
    7.
    发明申请
    Container And Wireless Tag Reading System 审中-公开
    集装箱和无线标签阅读系统

    公开(公告)号:US20090289795A1

    公开(公告)日:2009-11-26

    申请号:US12363256

    申请日:2009-01-30

    IPC分类号: G08B13/14 B65D90/00

    摘要: The container for accommodating at least one article bearing a wireless tag that wirelessly communicates with a reader/writer antenna includes a conductor which electromagnetically couples with an antenna of the wireless tag when an interrogation signal is radiated from the reader/writer antenna toward the wireless tag or when a response signal is radiated from the wireless tag toward the reader/writer antenna.

    摘要翻译: 用于容纳至少一个带有与读/写天线无线通信的无线标签的物品的容器包括当询问信号从读/写天线朝向无线标签辐射时,与无线标签的天线电磁耦合的导体 或者当响应信号从无线标签朝向读写器天线发射时。

    Positioning of mobile wireless terminal

    公开(公告)号:US07265716B2

    公开(公告)日:2007-09-04

    申请号:US11582394

    申请日:2006-10-18

    IPC分类号: G01S5/02

    CPC分类号: G01S3/46 G01S5/02 G01S5/08

    摘要: An apparatus for determining a position of a mobile wireless station comprises means for determining the position of the mobile wireless station in accordance with a position of a first reference wireless station, a position of a second reference wireless station, a first relative angular direction between the mobile wireless station and the first reference wireless station, and a second relative angular direction between the mobile wireless station and the second reference wireless station.

    Radio interrogator system and radio communication method therefor
    9.
    发明申请
    Radio interrogator system and radio communication method therefor 有权
    无线电询问器系统及其无线电通信方法

    公开(公告)号:US20070057770A1

    公开(公告)日:2007-03-15

    申请号:US11599097

    申请日:2006-11-14

    IPC分类号: H04Q5/22

    CPC分类号: G06K7/10356 G06K7/0008

    摘要: There is provided a radio interrogator system which reduces the interference with a radio transponder and avoids the decrease in throughput of the entire system in a case in which a plurality of radio interrogators are disposed at positions brought relatively close to each other and are simultaneously placed into operation. The plurality of radio interrogators are classified into two groups and each of the radio interrogators has an operation mode setting unit capable of exclusively setting, for each of the classified groups, a transmission mode for transmitting a radio transmission signal to a radio transponder or a reception mode for receiving a radio response signal transmitted from the radio transponder as a response to a radio transmission signal from the radio interrogator.

    摘要翻译: 提供了一种无线电询问器系统,其减少了与无线电转发器的干扰,并且在多个无线电询问器被布置在彼此相对靠近的位置的情况下避免了整个系统的吞吐量的降低,同时被放置在 操作。 多个无线电询问器被分为两组,每个无线电询问器具有操作模式设置单元,其能够针对每个分类的组专门设置用于将无线电发送信号发送到无线电转发器或接收的发送模式 用于接收从无线电应答器发送的无线电应答信号作为对来自无线电询问器的无线电发送信号的响应的模式。

    RFID transceiver device
    10.
    发明申请

    公开(公告)号:US20060229032A1

    公开(公告)日:2006-10-12

    申请号:US11209627

    申请日:2005-08-24

    IPC分类号: H04B1/46

    CPC分类号: H04B1/525 G06K7/0008

    摘要: An RFID transceiver device is capable of high sensitivity reception, by the reduction of noise, irrespective of the distance to the tag. The RFID transceiver device includes a delay circuit between a local oscillation circuit and a demodulation circuit, wherein the amount of delay of the delay circuit is set to a magnitude corresponding to the path difference between the path of leakage, via a duplexer into the demodulation circuit, of transmission signal output from the local oscillation circuit for transmission, and the path of direct input of the local oscillation signal from the local oscillation circuit to the demodulation circuit.