-
公开(公告)号：US5301362A
公开(公告)日：1994-04-05
申请号：US695953
申请日：1991-05-06
申请人： Tihiro Ohkawa
发明人： Tihiro Ohkawa
CPC分类号： G01S5/04
摘要： Generation of a high power rf pulse is achieved in a simple transmitting device that uses permanent magnet material(s) to store energy. Such energy is released through the thermal quenching of the magnetic material(s). Thermal quenching is accomplished, e.g., through an explosion. Such thermal quenching is facilitated in one embodiment by using a magnetic composite material comprising both magnetic particles and explosive particles. The rf pulse thus generated may be used for any desired purpose, e.g., tracking or research. The transmitting device includes a permanent magnet for establishing a constant magnetic flux for so long as the magnet retains its normal magnetic properties. The magnetic flux passes through a coil. Upon the thermal quenching of the magnetic material(s), the magnetic properties rapidly change, causing the magnetic flux to also rapidly change, thus inducing a high power electrical pulse in the coil. This high power electrical pulse may be used in a broad band spark transmitter or used to power a narrow band transmitter, causing the rf pulse to be generated. In one embodiment, the power of the electrical pulse is increased by charging a capacitor, followed by a very short discharge of the capacitor.
摘要翻译： 在使用永磁材料来存储能量的简单的发送装置中实现高功率射频脉冲的产生。 这种能量通过磁性材料的热淬火而释放。 例如通过爆炸完成热淬火。 通过使用包含磁性颗粒和爆炸性颗粒的磁性复合材料，在一个实施方案中可促进这种热淬火。 由此产生的脉冲频率脉冲可以用于任何期望的目的，例如跟踪或研究。 只要磁体保持其正常的磁特性，发送装置包括用于建立恒定磁通量的永磁体。 磁通量通过线圈。 在磁性材料的热淬火时，磁性能迅速变化，导致磁通量也迅速变化，从而在线圈中产生高功率的电脉冲。 这种高功率电脉冲可以用在宽带火花发射机中，或者用于为窄带发射机供电，从而产生射频脉冲。 在一个实施例中，电脉冲的功率通过对电容器充电而增加，随后是电容器的非常短的放电。
-
公开(公告)号：US5212491A
公开(公告)日：1993-05-18
申请号：US685325
申请日：1991-04-15
摘要： An arrangement for increasing the level of radiated and received energy in a telescoping antenna while the antenna is in a collapsed position. The increase in energy is obtained through use of a sliding member which projects from the base of the antenna and contacts antenna matching circuitry for making changes to this circuitry when the antenna is collapsed. Initially tuned for resonating signals for transmission and reception with the antenna in an extended position, the antenna matching circuitry is retuned by a switching action provided by the sliding member for more effective resonating of these signals with the shorter length antenna. The switching action of the sliding member also activates gain control circuitry which increases the signal levels in both an associated transmitter and receiver when the antenna is in the collapsed position.
摘要翻译： 一种用于在天线处于折叠位置时增加伸缩天线中的辐射和接收能量的水平的装置。 能量的增加是通过使用从天线的底部突出的滑动构件和接触天线匹配电路而获得的，以便在天线折叠时改变该电路。 最初调谐为使天线在扩展位置进行发送和接收的谐振信号，天线匹配电路由滑动构件提供的切换动作重新调整，以便更短时间地将这些信号谐振。 滑动构件的切换动作还激活增益控制电路，当天线处于折叠位置时，该控制电路在相关联的发射机和接收机中增加信号电平。
-
公开(公告)号：US5144324A
公开(公告)日：1992-09-01
申请号：US388454
申请日：1989-08-02
摘要： An arrangement for increasing the level of radiated and received energy in a telescoping antenna while the antenna is in a collapsed position. The increase in energy is obtained through use of a sliding member which projects from the base of the the antenna and contacts antenna matching circuitry for making changes to this circuitry when the antenna is collapsed. Initially tuned for resonating signals for transmission and reception with the antenna in an extended position, the antenna matching circuitry is retuned by a switching action provided by the sliding member for more effective resonating of these signals with the shorter length antenna. The switching action of the sliding member also activates gain control circuitry which increases the signal levels in both an associated transmitter and receiver when the antenna is in the collapsed position.
摘要翻译： 一种用于在天线处于折叠位置时增加伸缩天线中的辐射和接收能量的水平的装置。 能量的增加是通过使用从天线的底部伸出并与天线匹配电路接触的滑动构件获得的，当天线塌陷时，天线匹配电路用于改变该电路。 最初调谐为使天线在扩展位置进行发送和接收的谐振信号，天线匹配电路由滑动构件提供的切换动作重新调整，以便更短时间地使这些信号谐振。 滑动构件的切换动作还激活增益控制电路，当天线处于折叠位置时，该控制电路在相关联的发射机和接收机中增加信号电平。
-
124.发明授权
公开(公告)号：US5045973A
公开(公告)日：1991-09-03
申请号：US473922
申请日：1990-01-31
IPC分类号： H04B1/034
CPC分类号： H04B1/034 , Y10S174/34 , Y10T29/49016 , Y10T29/49126
摘要： A procedure for manufacturing a radio telephone chassis and for mounting circuit boards on the chassis, and a radio telephone chassis produced according to the procedure. The chassis is made from a sheet metal blank by suitably die cutting and bending it into a box-shaped body, the circuit boards attached thereto constitute one set of walls. Before mounting the circuit boards, the metal board is coated with a thin layer of tin.
-
公开(公告)号：US4916446A
公开(公告)日：1990-04-10
申请号：US215527
申请日：1988-07-06
申请人： Michio Yamamoto
发明人： Michio Yamamoto
CPC分类号： A63H30/04
摘要： A remote control device capable of substantially eliminating affection of noise and radio interference and increasing a transmission rate to improve a response speed by alternately transmitting an absolute data and a difference data. When joysticks of a transmitter are operated depending on the desired amount of operation of a control drive unit, the transmitter alternately arranges an absolute signal and a difference signal corresponding to the operation and generates a modulated control signal, which is received by a radio receiver loaded on the control drive unit. The radio receiver demodulates the control signal into an absolute data signal and a difference data signal, which are then converted into a signal of only an absolute value by a converter. Then, a drive section drives and controls the movable controls of the control drive unit in response to the signal.
摘要翻译： 一种远程控制装置，其能够基本上消除噪声和无线电干扰的影响，并且通过交替地发送绝对数据和差分数据来提高传输速率以提高响应速度。 当发射器的操纵杆根据控制驱动单元的期望的操作量而操作时，发射器交替地布置绝对信号和对应于该操作的差分信号，并产生调制控制信号，该调制控制信号被加载的无线电接收器 在控制驱动单元上。 无线电接收机将控制信号解调为绝对数据信号和差数据信号，然后通过转换器将其转换为仅绝对值的信号。 然后，驱动部根据该信号驱动控制控制驱动部的可动控制。
-
公开(公告)号：US4885800A
公开(公告)日：1989-12-05
申请号：US357428
申请日：1989-05-25
申请人： Clyde M. Ragle
发明人： Clyde M. Ragle
CPC分类号： H04B1/034 , F42B12/385
摘要： A transmitter attachment for hunting arrows includes a hollow tubular member which is removably mounted between the arrowhead and shaft of a conventional hunting arrow. The tubular member has a transmitter mounted in one end, and a battery slidably mounted between a pair of spring contacts in the other end. The battery is mounted so as to slide forward into electrical contact with a coil spring, which closes an electrical circuit to energize the transmitter, when the arrow hits the target or the ground. Thus, the combination of battery and contacts forms a type of inertia switch. A directional receiver is utilized to locate the arrow. The transmitter is deactivated by tapping the nock-end of the arrow against the ground--which slides the battery out of contact with the coil spring.
摘要翻译： 用于捕猎箭头的发射器附件包括中空管状构件，其可拆卸地安装在常规猎物箭头的箭头和轴之间。 管状构件具有一端安装的发射器，另一端可滑动地安装在一对弹簧触点之间的电池。 电池安装成向前滑动与螺旋弹簧电接触，当箭头击中目标或地面时，该螺旋弹簧关闭电路以使发射器通电。 因此，电池和触点的组合形成一种惯性开关。 使用定向接收器来定位箭头。 通过点击箭头的顶端到地面将发射器取消激活，这会使电池与螺旋弹簧脱离接触。
-
公开(公告)号：US4783656A
公开(公告)日：1988-11-08
申请号：US926875
申请日：1986-11-04
申请人： Philip Katz , Harold Schwartz
发明人： Philip Katz , Harold Schwartz
CPC分类号： A61F4/00
摘要： A system for quadriplegics and for others having less than full use of their limbs for controlling the environment is disclosed. The system includes an intra-oral lingually operated switch located on a dental appliance. The switch activates an intra-oral power supply and intra-oral FM transmitter which directs control signals from the inside of the oral cavity to an external FM receiver. A controller responsive to the receiver generates output signals for operating call devices, and for controlling various appliances such as televisions, lights, bed position, etc. In one embodiment, a delay circuit is interposed between the intra-oral switch and the power supply such that inadvertent closure of the switch with the tongue does not cause undue power drain. An improved FM transmitter circuit is also disclosed which has low power drain, has low mass and temperature sensitivity and is not directional.
摘要翻译： 本发明公开了一种四肢麻痹系统及其肢体不足以控制环境的系统。 该系统包括位于牙科器具上的口内舌上操作的开关。 该开关启动口内电源和口内FM发射器，其将控制信号从口腔内部引导到外部FM接收器。 响应于接收器的控制器产生用于操作呼叫装置的输出信号，并且用于控制诸如电视机，灯，床位置等各种设备。在一个实施例中，延迟电路插入在口内交换机和电源之间 舌头无意中关闭开关不会造成不必要的电力消耗。 还公开了一种改进的FM发射机电路，其具有低功率消耗，具有低质量和温度灵敏度并且不是定向的。
-
公开(公告)号：US4612667A
公开(公告)日：1986-09-16
申请号：US552051
申请日：1983-09-22
申请人： Holger Hansen
发明人： Holger Hansen
CPC分类号： H04B1/034 , H01P1/2133 , H04B2001/3894
摘要： An emergency transmitter provided with separate devices for the transmission of a first frequency and a second frequency. The transmitter is contained within a floatable housing. The transmission devices are connected via a switch to a battery. The transmission devices are comprised of a common quartz or crystal oscillator connected with frequency multipliers which are connected to drive stages and to high frequency final stages. The latter are connected to a transmission antenna which extends from the housing. Also provided is a signal generator for modulating the transmitted frequencies. A fixed-cycle control device is associated with the first and second transmission devices and alternately sets the two transmission devices into operation.
摘要翻译： PCT No.PCT / DE83 / 00007 Sec。 371日期1983年9月22日 102（e）1983年9月22日PCT提交1983年1月19日PCT公布。 第WO83 / 02699号公报 日期1983年8月4日。一个紧急发射机设有分别设备，用于传输第一个频率和第二个频率。 变送器包含在可浮动的外壳内。 传输装置通过开关连接到电池。 传输装置包括与连接到驱动级和高频最终级的频率倍增器连接的公共石英或晶体振荡器。 后者连接到从壳体延伸的发射天线。 还提供了一种用于调制发射频率的信号发生器。 固定周期控制装置与第一和第二传输装置相关联，并且交替地将两个传输装置设置成运行。
-
129.发明授权
公开(公告)号：US4491970A
公开(公告)日：1985-01-01
申请号：US454855
申请日：1982-12-30
IPC分类号： H04B1/034
CPC分类号： H04B1/0343 , H04B2001/3894
摘要： The present invention provides a small portable radio transmitter unit which can be worn on the wrist or suspended from a neck chain to provide immediate access in the event of an emergency condition and without interfering with the normal day-to-day activities of the wearer. The unit is contained within a watertight housing having a resilient membrane depressible by finger pressure to actuate a button switch within the housing for actuation of the transmitter. The housing is vented to the atmosphere to provide equalization of internal and ambient pressure in a manner providing isolation from water or other liquid entry to thereby maintain a watertight enclosure.
摘要翻译： 本发明提供了一种小便携式无线电发射机单元，其能够佩戴在手腕上或从颈链悬挂以在紧急情况下立即进入，并且不干扰佩戴者的正常日常活动。 该单元被包含在具有由手指压力压下的弹性膜的水密壳体内，以致动壳体内的按钮开关以致动发射器。 将壳体排放到大气中以提供内部和外部压力的均衡，其方式是提供与水或其它液体入口的隔离，从而保持水密的外壳。
-
公开(公告)号：US4480334A
公开(公告)日：1984-10-30
申请号：US389051
申请日：1982-06-16
CPC分类号： G01N33/0016 , G01W1/08
摘要： A housing for electrical components and equipment sent aloft with a weather balloon to measure atmospheric parameters comprises a light-weight polystyrene case that serves as a shipping container and flight package. The housing also includes an air duct and a humidity sensor in the duct. Means in the duct minimize the reflection of sunlight onto the sensor to maintain at ambient temperature the air which flows over a humidity sensor.
摘要翻译： 一个电气部件和设备的高度空间用气候气球测量大气参数的外壳包括一个轻质的聚苯乙烯壳体，作为运输集装箱和飞行包装。 壳体还包括管道中的空气管道和湿度传感器。 管道中的装置将太阳光的反射最小化到传感器上，以保持在环境温度下流过湿度传感器的空气。
-
-
-
-
-
-
-
-
-
搜索结果
803 条记录 (耗时 0.025 秒)
