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    • 52. 发明授权
    • Digitally programmable multifunction radio system architecture
    • 数字可编程多功能无线电系统架构
    • US6072994A
    • 2000-06-06
    • US522050
    • 1995-08-31
    • William C. PhillipsCharles L. HilterbrickRonald W. MinarikKenneth M. SchmidtMichael V. PascaleRobert S. Prill
    • William C. PhillipsCharles L. HilterbrickRonald W. MinarikKenneth M. SchmidtMichael V. PascaleRobert S. Prill
    • G01S13/76H04B1/04H04B1/26H04B1/40
    • H04B1/0042G01S13/767H04B1/0003H04B1/001H04B1/0039H04B1/0057H04B1/0092H04B1/26H04B1/40H04B2001/0491
    • A system that partitions or divides the functions of a radio into channels and divides the functions of each channel into two major functions: 1) antenna interface and power amplification; and 2) hardwired mixing, modulation/demodulation and signal processing and further partitions the mixing through signal processing functions into the functions of a) programmable analog mixing and b) programmable digital modulation/demodulation and signal processing. Control and user interface functions, if needed for a particular application can also be functionally partitioned. A typical received signal pathway will encounter an antenna module, an antenna interface and power amplification module, a receiver module partitioned into an analog submodule that performs mixing and down conversion to produce a common intermediate frequency signal and a digital submodule that further down converts the intermediate frequency signal, demodulates the signal and performs the other signal processing necessary to provide a useful information signal. A typical transmitter pathway includes a transmitter module partitioned into a digital submodule that performs signal processing and modulation and an analog submodule that performs upconversion and mixing, followed by a power amplification and interface module and an antenna module. Control and user interface modules can also be provided along with modules that perform additional processing and information security functions.
    • 将无线电功能分为或分为通道并将每个通道的功能划分为两个主要功能的系统:1)天线接口和功率放大; 和2)硬连线混合,调制/解调和信号处理,并通过信号处理功能将混合分为以下功能:a)可编程模拟混合和b)可编程数字调制/解调和信号处理。 控制和用户界面功能,如果需要特定的应用程序也可以进行功能划分。 典型的接收信号路径将会遇到天线模块,天线接口和功率放大模块,分为模拟子模块的接收机模块,进行混合和下变频以产生公共中频信号,数字子模块进一步向下转换中间 对信号进行解调并执行提供有用信息信号所必需的其他信号处理。 典型的发射机路径包括被分成数字子模块进行信号处理和调制的发射机模块以及执行上变频和混频的模拟子模块,其次是功率放大和接口模块和天线模块。 控制和用户界面模块也可以与执行附加处理和信息安全功能的模块一起提供。
    • 53. 发明授权
    • Fir interpolator with zero order hold and fir-spline interpolation
combination
    • 具有零级保持和冷杉样条插值组合的Fir内插器
    • US5732107A
    • 1998-03-24
    • US522049
    • 1995-08-31
    • William C. PhillipsMichael V. Pascale
    • William C. PhillipsMichael V. Pascale
    • H03H17/06H04K1/02
    • H03H17/028
    • A FIR interpolator which uses a zero order hold to add samples in-between original samples of a digital input stream. The use of zero order hold with a FIR interpolator reduces output harmonics as compared to the use of conventional zero fill. Moreover, a computation method has been developed to greatly reduce the amount of computation needed by combining the zero order hold and the FIR filter. The output of the FIR interpolator can then be interpolated by a Spline interpolator to further interpolate the input stream. The combination of zero order hold FIR interpolation with Spline interpolation provides an efficient, cost effective technique of interpolating a digital input stream while producing relatively small output harmonics.
    • FIR内插器,其使用零级保持来在数字输入流的原始样本之间添加样本。 与使用常规零填充相比,使用FIR插值器的零级保持降低输出谐波。 此外,已经开发了一种计算方法,以大大减少组合​​零阶保持和FIR滤波器所需的计算量。 然后可以通过样条插值器对FIR插值器的输出进行插值,以进一步内插输入流。 使用样条插值的零级保持FIR插值的组合提供了内插数字输入流同时产生相对小的输出谐波的高效,成本有效的技术。
    • 55. 发明授权
    • Switch actuator
    • 开关执行器
    • US4965420A
    • 1990-10-23
    • US410347
    • 1989-09-21
    • William C. PhillipsJames F. L. Blair
    • William C. PhillipsJames F. L. Blair
    • H01H13/14H01H13/20
    • H01H13/14H01H13/20
    • A switch actuator includes a base and a plunger mounted for movement on the base. An electrical contact is mounted for relative movement on the base to establish an electrical connection. An actuator includes a head portion and a pair of spring arms. The spring arms extend into a bore in the plunger for frictionally grasping the plunger by spring biased forces against the interior walls of the bore. The actuator has a head portion exposed from an open end of the plunger bore for effecting movement of the electrical contact to alter the state of the electrical connection. The frictional engagement between the spring arms and the plunger provide overtravel or relative movement therebetween and the affect of the spring arms substantially eliminates any affect from wear between the plunger and the actuator.
    • 开关致动器包括底座和安装成在基座上移动的柱塞。 安装电触点用于在基座上相对移动以建立电连接。 致动器包括头部和一对弹簧臂。 弹簧臂延伸到柱塞中的孔中,以通过弹簧偏置力抵抗孔的内壁来摩擦地抓住柱塞。 致动器具有从柱塞孔的开口端暴露的头部部分,用于实现电触点的移动以改变电连接的状态。 弹簧臂和柱塞之间的摩擦接合在它们之间提供超行程或相对运动,并且弹簧臂的影响基本上消除了柱塞和致动器之间的磨损的任何影响。