Apparatus and method for communicating with moving receivers
    1.
    发明申请
    Apparatus and method for communicating with moving receivers 审中-公开
    与移动接收机通信的装置和方法

    公开(公告)号:US20090176457A1

    公开(公告)日:2009-07-09

    申请号:US12006609

    申请日:2008-01-04

    IPC分类号: H04B1/00 H04B7/00

    CPC分类号: G01S13/86 G01S13/50 G01S13/74

    摘要: An apparatus for communicating with mobile receivers for emergency notification and other purposes comprises a localized (low power) transmitter capable of transmitting short bursts of compressed audio or video messages over a selected spatial range. The apparatus further contains a means of measuring the relative speed of the transmitter and receiver(s) and adjusting the transmission accordingly (for example by increasing the output power, shortening the burst length, or increasing the burst repetition rate). In this way, the effective “footprint” of the transmitter and/or the message length is matched to the time the receiver(s) pass within range of the transmitter so that each receiver is able to capture at least one complete burst in the available time. The transmitter may be relatively fixed, for instance on a highway overpass, for communicating with vehicles passing on the highway. Alternatively, the transmitter may be mounted on an emergency vehicle to warn vehicles ahead or on intersecting roads that the emergency vehicle is approaching. In this case, the transmitter may adjust its effective range based on the speed of the emergency vehicle itself.

    摘要翻译: 用于与移动接收机进行通信以用于紧急通知和其它目的的装置包括能够在所选择的空间范围上发送压缩音频或视频消息的短脉冲串的本地化(低功率)发射机。 该装置还包括测量发射机和接收机的相对速度并相应地调整传输(例如通过增加输出功率,缩短突发长度或增加突发重复率)的装置。 以这种方式,发射机的有效“覆盖”和/或消息长度与接收机在发射机的范围内通过的时间相匹配,使得每个接收机能够捕获可用的至少一个完整的突发 时间。 发射机可以是相对固定的,例如在高速公路立交桥上,用于与通过高速公路的车辆进行通信。 或者,发射器可以安装在紧急车辆上,以警告紧急车辆正在接近的道路上的车辆。 在这种情况下,发射机可以基于紧急车辆本身的速度来调整其有效范围。

    Variable frequency microwave heating apparatus
    2.
    发明授权
    Variable frequency microwave heating apparatus 失效
    变频微波加热装置

    公开(公告)号:US5961871A

    公开(公告)日:1999-10-05

    申请号:US413608

    申请日:1995-03-30

    摘要: A variable frequency microwave heating apparatus (10) designed to allow modulation of the frequency of the microwaves introduced into a multi-mode microwave cavity (34) for testing or other selected applications. The variable frequency microwave heating apparatus (10) includes a microwave signal generator (12) and a high-power microwave amplifier (20) or a high-power microwave oscillator (14). A power supply (22) is provided for operation of the high-power microwave oscillator (14) or microwave amplifier (20). A directional coupler (24) is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity (34). A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

    摘要翻译: 一种可变频微波加热装置(10),设计成允许调制被引入到多模式微波空腔(34)中的微波的频率用于测试或其它选定的应用。 变频微波加热装置(10)包括微波信号发生器(12)和大功率微波放大器(20)或大功率微波振荡器(14)。 提供电源(22)用于高功率微波振荡器(14)或微波放大器(20)的操作。 定向耦合器(24)被设置用于检测入射到微波空腔(34)上并由其反射的信号的方向和振幅。 提供第一功率计(30),用于测量传送到微波炉(32)的功率。 第二功率计(26)检测反射功率的大小。 反射功率消耗在反射功率负载(28)中。

    Apparatus and method for microwave processing of materials
    3.
    发明授权
    Apparatus and method for microwave processing of materials 失效
    微波处理材料的装置和方法

    公开(公告)号:US5521360A

    公开(公告)日:1996-05-28

    申请号:US306305

    申请日:1994-09-14

    CPC分类号: H05B6/686 Y02B40/143

    摘要: A variable frequency microwave heating apparatus (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications. The variable frequency heating apparatus (10) is used in the method of the present invention to monitor the resonant processing frequency within the furnace cavity (34) depending upon the material, including the state thereof, from which the workpiece (36) is fabricated. The variable frequency microwave heating apparatus (10) includes a microwave signal generator (12) and a high-power microwave amplifier (20) or a microwave voltage-controlled oscillator (14). A power supply (22) is provided for operation of the high-power microwave oscillator (14) or microwave amplifier (20). A directional coupler (24) is provided for detecting the direction and amplitude of signals incident upon and reflected from the microwave cavity (34). A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

    摘要翻译: 一种变频微波加热装置(10),其被设计成允许调制引入炉腔(34)的微波的频率用于测试或其它选定的应用。 在本发明的方法中,采用变频加热装置(10)根据制造工件(36)的材料(包括其状态)监测炉腔(34)内的共振处理频率。 变频微波加热装置(10)包括微波信号发生器(12)和大功率微波放大器(20)或微波压控振荡器(14)。 提供电源(22)用于高功率微波振荡器(14)或微波放大器(20)的操作。 定向耦合器(24)被设置用于检测入射到微波空腔(34)上并由其反射的信号的方向和振幅。 提供第一功率计(30),用于测量传送到微波炉(32)的功率。 第二功率计(26)检测反射功率的大小。 反射功率消耗在反射功率负载(28)中。

    Portable microwave instrument for non-destructive evaluation of
structural characteristics
    4.
    发明授权
    Portable microwave instrument for non-destructive evaluation of structural characteristics 失效
    便携式微波仪器,用于非破坏性评估结构特征

    公开(公告)号:US5384543A

    公开(公告)日:1995-01-24

    申请号:US972776

    申请日:1992-11-09

    IPC分类号: G01N22/02 G01R27/00

    CPC分类号: G01N22/02

    摘要: A portable microwave instrument for evaluating characteristics of a structural member includes a source of microwave energy, a transmitter coupled to the source of microwave energy for transmitting a microwave signal at the structural member, and a receiver positioned on the same side of the structural member as the transmitter and being disposed to receive a microwave signal reflected by the structural member. A phase angle difference is determined between the transmitted microwave signal and the received microwave signal using a signal splitter and a balanced mixer. The difference in phase angle varies in accordance with differences in size, shape and locations of constituent materials within the structural member.

    摘要翻译: 用于评估结构构件的特性的便携式微波仪器包括微波能量源,耦合到微波能量源的发射器​​,用于在结构构件处传送微波信号;以及接收器,其位于结构构件的同一侧, 并且被布置成接收由结构构件反射的微波信号。 使用信号分离器和平衡混频器在发射的微波信号和接收的微波信号之间确定相位角差。 相位角的差异根据结构构件内的构成材料的尺寸,形状和位置的差异而变化。

    Variable frequency microwave furnace system
    5.
    发明授权
    Variable frequency microwave furnace system 失效
    变频微波炉系统

    公开(公告)号:US5321222A

    公开(公告)日:1994-06-14

    申请号:US792103

    申请日:1991-11-14

    摘要: A variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34) for testing or other selected applications. The variable frequency microwave furnace system (10) includes a microwave signal generator (12) or microwave voltage-controlled oscillator (14) for generating a low-power microwave signal for input to the microwave furnace. A first amplifier (18) may be provided to amplify the magnitude of the signal output from the microwave signal generator (12) or the microwave voltage-controlled oscillator (14). A second amplifier (20) is provided for processing the signal output by the first amplifier (18). The second amplifier (20) outputs the microwave signal input to the furnace cavity (34). In the preferred embodiment, the second amplifier (20) is a traveling-wave tube (TWT). A power supply (22) is provided for operation of the second amplifier (20). A directional coupler (24) is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. Reflected power is dissipated in the reflected power load (28).

    摘要翻译: 一种可变频率微波炉系统(10),其被设计成允许调制被引入到炉腔(34)中的用于测试或其它选定应用的微波的频率。 可变频率微波炉系统(10)包括微波信号发生器(12)或微波压控振荡器(14),用于产生用于输入到微波炉的低功率微波信号。 可以提供第一放大器(18)以放大从微波信号发生器(12)或微波压控振荡器(14)输出的信号的幅度。 第二放大器(20)被提供用于处理由第一放大器(18)输出的信号。 第二放大器(20)将输入的微波信号输出到炉腔(34)。 在优选实施例中,第二放大器(20)是行波管(TWT)。 提供电源(22)用于第二放大器(20)的操作。 定向耦合器(24)用于检测信号的方向,并根据检测到的方向进一步引导信号。 提供第一功率计(30),用于测量传送到微波炉(32)的功率。 第二功率计(26)检测反射功率的大小。 反射功率消耗在反射功率负载(28)中。

    Temperature measuring device
    6.
    发明授权
    Temperature measuring device 失效
    温度测量装置

    公开(公告)号:US5969639A

    公开(公告)日:1999-10-19

    申请号:US901708

    申请日:1997-07-28

    IPC分类号: H01Q3/26

    CPC分类号: H01Q3/26

    摘要: Systems and methods are described for a wireless instrumented silicon wafer that can measure temperatures at various points and transmit those temperature readings to an external receiver. The device has particular utility in the processing of semiconductor wafers, where it can be used to map thermal uniformity on hot plates, cold plates, spin bowl chucks, etc. without the inconvenience of wires or the inevitable thermal perturbations attendant with them.

    摘要翻译: 描述了可以测量各个点处的温度并将这些温度读数传送到外部接收器的无线仪表硅晶片的系统和方法。 该装置在半导体晶片的处理中具有特别的用途,其可以用于在热板,冷板,旋转盘卡盘等上映射热均匀性,而不会引起线的不便或不必要的热扰动。

    Method for curing polymers using variable-frequency microwave heating
    7.
    发明授权
    Method for curing polymers using variable-frequency microwave heating 失效
    使用可变频率微波加热固化聚合物的方法

    公开(公告)号:US5721286A

    公开(公告)日:1998-02-24

    申请号:US523902

    申请日:1995-09-06

    摘要: A method for curing polymers (11) incorporating a variable frequency microwave furnace system (10) designed to allow modulation of the frequency of the microwaves introduced into a furnace cavity (34). By varying the frequency of the microwave signal, non-uniformities within the cavity (34) are minimized, thereby achieving a more uniform cure throughout the workpiece (36). A directional coupler (24) is provided for detecting the direction of a signal and further directing the signal depending on the detected direction. A first power meter (30) is provided for measuring the power delivered to the microwave furnace (32). A second power meter (26) detects the magnitude of reflected power. The furnace cavity (34) may be adapted to be used to cure materials defining a continuous sheet or which require compressive forces during curing.

    摘要翻译: 一种固化聚合物(11)的方法,其包括设计成允许调节引入炉腔(34)的微波频率的变频微波炉系统(10)。 通过改变微波信号的频率,空腔(34)内的非均匀性最小化,从而在整个工件(36)上实现更均匀的固化。 定向耦合器(24)用于检测信号的方向,并根据检测到的方向进一步引导信号。 提供第一功率计(30),用于测量传送到微波炉(32)的功率。 第二功率计(26)检测反射功率的大小。 炉腔(34)可以适用于固化限定连续片材的材料,或者在固化期间需要压缩力。