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    • 3. 发明授权
    • Packaging and cooling system for power semi-conductor
    • 电力半导体封装和冷却系统
    • US5719444A
    • 1998-02-17
    • US638985
    • 1996-04-26
    • Charles L. TiltonDonald E. TiltonBruce A. Smetana
    • Charles L. TiltonDonald E. TiltonBruce A. Smetana
    • H01L23/427H01L23/473H05K7/20H01L23/34H02B1/00H01R63/68
    • H01L23/473H01L23/427H01L2924/0002
    • A packaging and cooling system for one or more semi-conductor devices provides a casement defining a die chamber carrying a peripherally positioned power board with pre-attached multi-functional power pins communicating to medially positioned dies. The power pins provide not only improved power supply but also provide heat transfer from and mechanical support for the die. The die with an attached power supply plane and heat spreader is flip mounted on the power pins. The casement defines channels for coolant between the power board and dies and outwardly of the heat spreader. A closed cooling system provides a fluidic coolant to an input plenum from which it is sprayed into the die chamber channels for evaporative cooling therein on both sides of contained dies and about the power pins with subsequent recovery and recycling. The asymmetrical architecture within the die chamber allows less restricted thermal expansion of the various components than would result from common symmetrical architecture.
    • 用于一个或多个半导体器件的封装和冷却系统提供了一个定型模具腔室的平台,该模具室具有外围定位的电源板,其具有与内部定位的模具通信的预先连接的多功能电源插针。 电源引脚不仅提供改进的电源,还提供对模具的热传递和机械支撑。 具有附接电源平面和散热器的模具被翻转安装在电源引脚上。 隔板定义了电源板和模具之间的冷却剂通道,以及散热器外部的通道。 封闭的冷却系统向输入压力室提供流体冷却剂,从而将其喷射到模腔通道中,以便在容纳模具的两侧进行蒸发冷却,并且随后进行回收和再循环。 模具室内的不对称结构允许各种部件的热膨胀比普通对称结构产生的热膨胀较少。
    • 4. 发明授权
    • Liquid fuel injection device with pressure-swirl atomizers
    • 液体燃料喷射装置,带有旋压雾化器
    • US5713327A
    • 1998-02-03
    • US778879
    • 1997-01-03
    • Charles L. TiltonDonald E. TiltonBruce A. Smetana
    • Charles L. TiltonDonald E. TiltonBruce A. Smetana
    • F02M61/16F02M61/18F02B3/00
    • F02M61/186F02M61/162F02M61/1806F02M2200/29
    • A liquid fuel injection device for internal combustion engines provides an elongate peripheral injector housing defining a cylindrical medial chamber with a fluid plenum having a fluid inlet at a first end and plural fluid exit ports at a second end that is carried within a combustion chamber of an engine cylinder. The plural exit ports are spacedly arrayed in both circumferential and axial directions and may be angularly oriented in the injector housing. The medial chamber of the injector housing rotatably carries an atomizer casement defining an internal chamber with plural circumferentially spaced inlet orifices at a first end which communicates with the fluid plenum of the first end of the injector housing and plural spray orifices at the second end. Each spray orifice of the atomizer casement carries a pressure swirl atomizer with output orifice arrayed to communicate with at least one of the exit ports defined in the second end of the injector housing at at least one rotary position of the atomizer casement relative to the injector housing. A first species of injection device provides electrically powered mechanism for rotating the atomizer casement relative to the injector housing and a second species provides pressurized fuel powered mechanism for such rotation. Both species allow adjustment of fuel injection timing and flow rate independently of each other.
    • 用于内燃机的液体燃料喷射装置提供了一个细长的外围喷射器壳体,其限定了具有在第一端处具有流体入口的流体增压室的圆柱形中间室,以及在第二端处的多个流体出口, 发动机气缸。 多个出口端口在圆周方向和轴向方向上间隔排列,并且可以在注射器壳体中成角度地定向。 喷射器壳体的内侧腔室可转动地携带雾化器罩,该雾化器罩在第一端处限定具有多个周向间隔开的入口孔的内部腔室,该第一端部与喷射器壳体的第一端部的流体通风室和第二端部的多个喷射喷嘴连通。 雾化器平板开口的每个喷孔都带有压力涡流雾化器,其输出孔排列成与喷雾器壳体的第二端中限定的至少一个出口连通,该至少一个出口与喷雾器壳体的至少一个旋转位置 。 第一种注射装置提供用于相对于注射器壳体旋转雾化器罩的电动机构,并且第二种类为这种旋转提供加压燃料动力机构。 两种物种都可以独立于彼此调整燃料喷射正时和流量。
    • 9. 发明授权
    • Digital signals and frequency correction in a digital wireless system
    • 数字信号和数字无线系统中的频率校正
    • US4893317A
    • 1990-01-09
    • US256415
    • 1988-10-12
    • David N. CritchlowGraham M. AvisSandra J. EarlamKarle J. JohnsonBruce A. SmetanaGregory L. WestlingEric PanethMoshe Yehushua
    • David N. CritchlowGraham M. AvisSandra J. EarlamKarle J. JohnsonBruce A. SmetanaGregory L. WestlingEric PanethMoshe Yehushua
    • H04B7/26H03D3/00H03D7/16H03H17/06H03L7/095H04B1/38H04B1/50H04B7/005H04L27/152H04L27/18H04L27/22H04L27/233H04M1/00H04M1/253H04M1/725H04M11/06H04Q7/20H04Q7/38
    • H04M1/72502H03D3/006H03D7/165H03H17/0657H03L7/095H04B1/50H04L27/1525H04L27/2338H03D2200/005H03D2200/0052H03D2200/0058H03D2200/0062H03D2200/0082H03D3/007H03D7/161
    • A digital wireless subscriber telephone unit for wireless connection with a base station. The subscriber unit has a baseband processor which is coupled to storage device for the baseband functions. The baseband processor is direct access coupled to a modem processor whereby the two processors may communicate with each other. The modem processor generally acts as the master in the system, although lock-out circuit may be used in certain circumstances. The signal from the modem processor is converted to an analog signal, which is subjected to deglitching, and the deglitched signal is then upconverted and filtered to form an IF signal which is thereafter amplified. The amplified IF signal is combined with a signal generated by a synthesizer to provide an RF signal. On the basis of certain signals received from the base station, the baseband processor produces initiating signals which determine whether the subscriber unit will be in the transmit mode or the receive mode. In intervals between actuation of the system, a training mode is used wherein a known signal from the modem processor is compared with a looped-back signal to produce correction constants to compensate for undesirable variations in the IF, these constants being stored for use in correcting actual received signals. During demodulation, the modulated digital signals are fed to the modem processor in the form of time multiplexed I and Q samples and are demultiplexed. The demultiplexed I and Q samples are fed to an equalizer and frequency correction circuit for minimization of errors and for production of a frequency correction signal which is used to correct any errors in the timing of the system and in the output of the synthesizer. 2
    • 一种用于与基站无线连接的数字无线用户电话单元。 用户单元具有耦合到用于基带功能的存储设备的基带处理器。 基带处理器是与调制解调器处理器相连的直接访问器,由此两个处理器可以彼此进行通信。 调制解调器处理器通常用作系统中的主机,尽管在某些情况下可以使用锁定电路。 来自调制解调器处理器的信号被转换成模拟信号,该模拟信号经过去抖动,然后将去抖动信号上变频和滤波,以形成IF信号,此后被放大。 放大的IF信号与由合成器产生的信号组合以提供RF信号。 基于从基站接收到的某些信号,基带处理器产生确定用户单元是处于发送模式还是接收模式的启动信号。 在系统的启动之间的间隔中,使用训练模式,其中将来自调制解调器处理器的已知信号与环回信号进行比较以产生校正常数以补偿IF中的不期望的变化,这些常数被存储用于校正 实际接收信号。 在解调期间,经调制的数字信号以时分复用I和Q采样的形式馈送到调制解调处理器,并被解复用。 解复用的I和Q采样被馈送到均衡器和频率校正电路,用于最小化误差并产生用于校正系统的定时和合成器的输出中的任何误差的频率校正信号。