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    • 5. 发明授权
    • Wireless receiver apparatus provided with gain control amplifier
    • 具有增益控制放大器的无线接收装置
    • US07920840B2
    • 2011-04-05
    • US11905063
    • 2007-09-27
    • Kouji TakahashiKosuke Ota
    • Kouji TakahashiKosuke Ota
    • H04B7/00H04B1/06
    • H03G3/3078
    • In a wireless receiver apparatus including a gain control amplifier for controlling a gain of a reception signal, a maintaining device compulsorily maintains the gain of the gain control amplifier at a predetermined fixed value only in a predetermined specified interval. The maintaining device includes a latch circuit for maintaining a gain set value immediately prior to the specified interval. A start timing of the specified interval is determined by an edge of a predetermined timer start signal, and a duration of the specified interval is determined on the basis of a count of a predetermined timer clock signal and a count of a predetermined timer count set bus signal.
    • 在包括用于控制接收信号的增益的增益控制放大器的无线接收机装置中,保持装置仅在预定的指定间隔内强制地将增益控制放大器的增益保持在预定的固定值。 保持装置包括用于在紧接指定间隔之前维持增益设定值的锁存电路。 指定间隔的开始定时由预定定时器启动信号的边缘确定,并且基于预定定时器时钟信号的计数和预定定时器计数总线的计数来确定指定间隔的持续时间 信号。
    • 6. 发明申请
    • Oscillation control apparatus
    • 振荡控制装置
    • US20060139107A1
    • 2006-06-29
    • US11302247
    • 2005-12-14
    • Kosuke OtaTakayuki Shimazu
    • Kosuke OtaTakayuki Shimazu
    • H03L7/00
    • H03L7/099H03C3/0958H03D3/241H03L7/18
    • In a PLL comprising a VCO 1 equipped with a variable resonator 2, a frequency divider 6, a phase comparator 7, and an LPF 8, a variable resonator control signal generation section 10 has the output voltage of LPF 8 as input, detects the f/v sensitivity of VCO 1, generates a variable resonator control signal, and controls the capacitance of variable resonator 2 by means of the variable resonator control signal. Specifically, when a voltage detection circuit 5 having the output voltage of LPF 8 as input detects a predetermined voltage, a data latch circuit 4 transmits a variable resonator control signal based on the voltage detected by voltage detection circuit 5 to variable resonator 2 and performs variable capacitance control. As a result, the f/v sensitivity of VCO 1 can be controlled to an optimal value even in the event of PLL configuration element variation or temperature changes.
    • 在包括配备有可变谐振器2的VCO 1,分频器6,相位比较器7和LPF 8的PLL中,可变谐振器控制信号生成部10具有LPF 8的输出电压作为输入,检测f VCO的灵敏度产生可变谐振器控制信号,并通过可变谐振器控制信号控制可变谐振器2的电容。 具体来说,当输出电压为LPF8作为输入的电压检测电路5检测到预定电压时,数据锁存电路4将可变谐振器控制信号基于由电压检测电路5检测的电压发送到可变谐振器2, 电容控制。 结果,即使在PLL配置元件变化或温度变化的情况下,也可以将VCO 1的f / v灵敏度控制到最佳值。
    • 7. 发明授权
    • Medical three-dimensional locating apparatus
    • 医用三维定位装置
    • US5257998A
    • 1993-11-02
    • US913766
    • 1992-06-30
    • Kosuke OtaTakaaki TakizawaGiichi NakamuraKatsushige Nakamura
    • Kosuke OtaTakaaki TakizawaGiichi NakamuraKatsushige Nakamura
    • A61B17/00A61B19/00
    • A61B90/10A61B90/11A61B2017/00022Y10S414/13
    • A medical three-dimensional locating apparatus includes an arm unit comprising a first arm pivotally supported for tuning about a first axis, a second arm pivotally supported on the first arm for tuning about a second axis perpendicular to the first axis, and an indicating unit or an echo probe held on the second arm so as to be moved toward and away from the intersection point of the first and second axes. A support unit supports the arm unit, and position detectors are provided for detecting the position of the intersection point of the first and second axes and the position of the tip of the indicating unit or the like relative to the intersection point. The medical three-dimensional locating apparatus is capable of accurately reproducing the three-dimensional position data of a focus obtained through imaging diagnosis in the affected part for an actual surgical operation and readily selecting an optimum approach angle, namely, and angle of a direction to approach the focus to a reference line, through a simple operation.
    • 医疗三维定位装置包括臂单元,其包括枢转地支撑用于围绕第一轴线调谐的第一臂,枢转地支撑在第一臂上的第二臂,用于围绕垂直于第一轴线的第二轴线进行调谐;以及指示单元或 保持在第二臂上的回波探测器朝向和远离第一和第二轴线的交点移动。 支撑单元支撑臂单元,并且提供位置检测器,用于检测第一和第二轴线的交点的位置以及相对于交点的指示单元等的尖端的位置。 医疗三维定位装置能够精确地再现通过影像诊断获得的焦点的三维位置数据,用于实际外科手术,并且容易地选择最佳进场角度,即方向角度 通过简单的操作将焦点逼近参考线。
    • 8. 发明申请
    • Wireless receiver apparatus provided with gain control amplifier
    • 具有增益控制放大器的无线接收装置
    • US20080076373A1
    • 2008-03-27
    • US11905063
    • 2007-09-27
    • Kouji TakahashiKosuke Ota
    • Kouji TakahashiKosuke Ota
    • H04B1/06
    • H03G3/3078
    • In a wireless receiver apparatus including a gain control amplifier for controlling a gain of a reception signal, a maintaining device compulsorily maintains the gain of the gain control amplifier at a predetermined fixed value only in a predetermined specified interval. The maintaining device includes a latch circuit for maintaining a gain set value immediately prior to the specified interval. A start timing of the specified interval is determined by an edge of a predetermined timer start signal, and a duration of the specified interval is determined on the basis of a count of a predetermined timer clock signal and a count of a predetermined timer count set bus signal.
    • 在包括用于控制接收信号的增益的增益控制放大器的无线接收机装置中,保持装置仅在预定的指定间隔内强制地将增益控制放大器的增益保持在预定的固定值。 保持装置包括用于在紧接指定间隔之前维持增益设定值的锁存电路。 指定间隔的开始定时由预定定时器启动信号的边缘确定,并且基于预定定时器时钟信号的计数和预定定时器计数总线的计数来确定指定间隔的持续时间 信号。
    • 9. 发明授权
    • Oscillation control apparatus
    • 振荡控制装置
    • US07312665B2
    • 2007-12-25
    • US11302247
    • 2005-12-14
    • Kosuke OtaTakayuki Shimazu
    • Kosuke OtaTakayuki Shimazu
    • H03L7/00
    • H03L7/099H03C3/0958H03D3/241H03L7/18
    • In a PLL comprising a voltage controlled oscillator (VCO) equipped with a variable resonator, a frequency divider, a phase comparator, and an low pass filter (LPF), a variable resonator control signal generation section has the output voltage of the LPF as an input, detects a f/v sensitivity of the VCO, generates a variable resonator control signal, and controls a capacitance of the variable resonator by the variable resonator control signal. In a disclosed embodiment, when a voltage detection circuit having the output voltage of the LPF as an input detects a predetermined voltage, a data latch circuit transmits a variable resonator control signal based on the voltage detected by voltage detection circuit to variable resonator and performs a variable capacitance control. As a result, the f/v sensitivity of the VCO can be controlled to an optimal value even in the event of PLL configuration element variation or temperature changes.
    • 在包括配备有可变谐振器,分频器,相位比较器和低通滤波器(LPF)的压控振荡器(VCO)的PLL中,可变谐振器控制信号生成部分将LPF的输出电压作为 输入,检测VCO的af / v灵敏度,产生可变谐振器控制信号,并通过可变谐振器控制信号控制可变谐振器的电容。 在所公开的实施例中,当具有作为输入的LPF的输出电压的电压检测电路检测到预定电压时,数据锁存电路基于由电压检测电路检测的电压向可变谐振器发送可变谐振器控制信号,并执行 可变电容控制。 结果,即使在PLL配置元件变化或温度变化的情况下,也可以将VCO的f / v灵敏度控制到最佳值。