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    • 1. 发明授权
    • Signal transmission device having an automatic transmission level
control circuit used in a multi-carrier transmission terminal equipment
and multi-carrier transmission terminal equipment employing the
transmission device
    • 具有在多载波传输终端设备中使用的自动传输电平控制电路的信号传输设备和采用传输设备的多载波传输终端设备
    • US5410729A
    • 1995-04-25
    • US112557
    • 1993-08-26
    • Yoshiaki KumagaiYoichi Endo
    • Yoshiaki KumagaiYoichi Endo
    • H03G3/30H03G3/20H03G5/16H04B1/04
    • H03G3/3052
    • A signal transmission device having ALC function includes a detection circuit for output level detection when used in a multi-carrier :system where the number of carriers changes. The signal transmission device further has a variable attenuator for controlling a level of a transmission signal. A transmission circuit is coupled to the output of the variable attenuator for modulating a local oscillation signal with the output of the variable attenuator and for generating a modulated output signal. The detection circuit is provided with the modulated output signal for generating a detection voltage. The detection circuit includes a diode having a square-law characteristic region. A reference voltage generating circuit receives an information signal indicative of the number of carriers for generating a reference voltage corresponding to the number of carriers. A first control circuit is provided, receiving the detecting voltage and the reference voltage, for generating and supplying, to the variable attenuator, a first control signal of a difference between the detection voltage and the reference voltage. A second control circuit is supplied with the information signal indicative of the number of carriers, for generating and supplying, to the detection circuit, a second control signal corresponding to the number of carriers, whereby the square-law characteristic region of the diode in the detection circuit is shifted responding to the second control signal.
    • 具有ALC功能的信号传输装置包括用于在载波数量变化的多载波系统中使用的用于输出电平检测的检测电路。 信号传输装置还具有用于控制传输信号电平的可变衰减器。 传输电路耦合到可变衰减器的输出,用于利用可变衰减器的输出调制本地振荡信号并产生调制的输出信号。 检测电路具有用于产生检测电压的调制输出信号。 检测电路包括具有平方律特征区域的二极管。 参考电压发生电路接收指示用于产生与载波数相对应的参考电压的载波数的信息信号。 提供第一控制电路,接收检测电压和参考电压,用于生成并向可变衰减器提供检测电压和参考电压之间的差的第一控制信号。 第二控制电路被提供有指示载波数量的信息信号,用于产生和提供对应于载波数目的第二控制信号,由此二极管的平方律特性区域 检测电路响应于第二控制信号而移位。
    • 2. 发明授权
    • Automatic frequency control circuit selectively using frequency-divided
local oscillator signal or pilot signal
    • 自动频率控制电路选择使用分频本机振荡信号或导频信号
    • US5548811A
    • 1996-08-20
    • US336205
    • 1994-11-03
    • Yoshiaki KumagaiEiji ItayaYoichi Endo
    • Yoshiaki KumagaiEiji ItayaYoichi Endo
    • H03J7/04H03J7/06H04B1/18
    • H03J7/047H03J7/065
    • An automatic frequency control (AFC) circuit receives input signals and generates converted signals by mixing the input signals with a local oscillation signal. An extraction circuit extracts a pilot signal, if present, from the input signals and provides the pilot signal to a switch. A frequency divider divides a frequency of the local oscillation signal output from a voltage control oscillator, and provides the frequency-divided local oscillation signal to the switch. The output of the switch is compared with a reference frequency in a phase comparator which generates a comparison result which controls the voltage controlled oscillator. If the pilot signal is not present, the switch selects the frequency-divided oscillation signal, to construct a phase-locked loop to stabilize the frequency of the local oscillation signal. Alternatively, an AFC circuit includes a frequency divider for selectively dividing a frequency of a pilot signal included in the converted signal. Various frequencies of the pilot signal can be received by altering a division number in the frequency divider.
    • 自动频率控制(AFC)电路接收输入信号并通过将输入信号与本地振荡信号混合来产生转换的信号。 提取电路从输入信号中提取导频信号(如果有的话),并向导频提供导频信号。 分频器分压从压控振荡器输出的本地振荡信号的频率,并向开关提供分频本机振荡信号。 将开关的输出与相位比较器中的参考频率进行比较,该相位比较器产生控制压控振荡器的比较结果。 如果导频信号不存在,则开关选择分频振荡信号,构成锁相环,以稳定本振信号的频率。 或者,AFC电路包括用于选择性地分频转换信号中包括的导频信号的频率的分频器。 可以通过改变分频器中的分频数来接收导频信号的各种频率。
    • 8. 发明授权
    • Avoidance of extended bus occupancy through simple control operation
    • 通过简单的控制操作避免扩展的总线占用
    • US07181558B2
    • 2007-02-20
    • US10717670
    • 2003-11-21
    • Yoichi EndoNaoki Ninagawa
    • Yoichi EndoNaoki Ninagawa
    • G06F13/00H04L12/40G09G3/36
    • G06F13/364
    • A shared bus system includes a bus, a first circuit which accesses the bus, a second circuit which shares the bus with the first circuit, and accesses the bus, a counter circuit which is provided in the second circuit, and performs a counting operation each time the second circuit accesses the bus, and an arbiter circuit which arbitrates requests for a right to use the bus between the first circuit and the second circuit, wherein the second circuit releases the right to use the bus in response to detection of a predetermined number of counting operations performed by the counter circuit after acquiring the right to use the bus from the arbiter circuit.
    • 共享总线系统包括总线,访问总线的第一电路,与第一电路共享总线的第二电路和访问总线,设置在第二电路中的计数器电路,并且执行每个 第二电路访问总线的时间和仲裁器电路,其仲裁在第一电路和第二电路之间使用总线的权利的请求,其中第二电路响应于预定数量的检测而释放使用总线的权利 在从仲裁器电路获取使用总线的权利之后由计数器电路执行的计数操作。
    • 9. 发明授权
    • Saddle for bicycle
    • 马鞍自行车
    • US5863094A
    • 1999-01-26
    • US881385
    • 1997-06-24
    • Yoichi Endo
    • Yoichi Endo
    • B62J1/00B62J1/04B62J1/28
    • B62J1/002B62J1/005B62J1/007
    • The present device provides a novel saddle for a bicycle, which eliminates the risk of pain caused by oppression of the regions near the hip or the perineal regions, and ensures an agreeable riding.The front sides of the saddle has a shape projecting forward in the traveling direction of the bicycle from the front center portion, and at least the saddle displacement member including the projecting front sides is displaceable relative to the bicycle main body. The body weight of the bicycle rider can therefore be supported in a dispersed state over a wide range of the hip and the femoral regions. The hip, particularly the regions near the coccyx are not locally oppressed seriously.
    • 本装置提供了一种用于自行车的新型鞍座,其消除了由于臀部或会阴区域附近的压迫引起的疼痛的风险,并且确保了令人愉快的骑行。 鞍座的前侧具有从前中心部向自行车的行进方向前方突出的形状,并且至少包括突出的前侧的鞍座位移构件相对于自行车主体可移位。 因此,自行车骑手的体重可以在臀部和股骨区域的宽范围内以分散状态支撑。 臀部,特别是尾骨附近的地区并不被当地压迫。