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公开(公告)号：US06301198B1
公开(公告)日：2001-10-09
申请号：US09367088
申请日：1999-08-09
申请人： Yukio Otaka , Rikoku Nakamura , Shigeru Morokawa
发明人： Yukio Otaka , Rikoku Nakamura , Shigeru Morokawa
IPC分类号： G04B100
CPC分类号： G04C10/02
摘要： In an electronic timepiece, in which electric power generated by a solar cell (101) is accumulated in an accumulator device (104) and a time keeping means (105) is driven with the accumulated electric power, an electrically on-off controllable switch (102) is provided in a circuit for charging the accumulator device (104) by the solar cell (101), a voltage comparison means (103) intermittently brings the switch (102) into the off-state at predetermined intervals and compares the generated voltage (Vs) by the solar cell and the accumulated voltage (Vb) in the accumulator device (104), and keeps the switch (102) in the off-state as it is when Vs≦Vb and brings the switch (102) into the on-state when Vs>Vb in accordance with the comparison result. Thereby, a reverse flow of an electric current from the accumulator device (104) can be prevented and a voltage drop on charging is eliminated, resulting in enhancement in charging efficiency.
摘要翻译： 在由太阳能电池（101）产生的电力蓄积在蓄电装置（104）中的电子钟表中，并且用累积的电力驱动时间保持装置（105），电开关可控开关 102）设置在用于由太阳能电池（101）对蓄电装置（104）充电的电路中，电压比较装置（103）以预定间隔间歇地使开关（102）进入断开状态，并将发电电压 （Vs）和累积装置（104）中的累积电压（Vb），并且当Vs <= Vb时使开关（102）保持关闭状态，并使开关（102）进入 根据比较结果，Vs> Vb时的导通状态。 因此，可以防止来自蓄电装置（104）的电流的反向流动，并且消除充电时的电压降，导致充电效率的提高。
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公开(公告)号：US06507248B2
公开(公告)日：2003-01-14
申请号：US09864157
申请日：2001-05-25
申请人： Rikoku Nakamura
发明人： Rikoku Nakamura
IPC分类号： H03B532
摘要： Disclosed is an integrated voltage-controlled crystal oscillator intended to present the conditions for circuit constants in an oscillator circuit that can improve the oscillator's frequency tuning range with respect to the variable capacitance range of a variable-capacitance element. The voltage-controlled crystal oscillator comprises a crystal, an amplifier, and a load capacitor, wherein the load capacitor includes a voltage-controlled variable-capacitance element integrated on a semiconductor substrate and a DC cut capacitor element connected in series with the voltage-controlled variable-capacitance element, and the DC cut capacitor element has a capacitance value (Ccut) whose ratio to a maximum capacitance value (Cvmax) of the voltage-controlled variable-capacitance element (Ccut/Cvmax) is more than 0.5 and not more than 10.
摘要翻译： 公开了一种集成的压控晶体振荡器，旨在呈现振荡器电路中的电路常数的条件，其可以相对于可变电容元件的可变电容范围改善振荡器的频率调谐范围。 压控晶体振荡器包括晶体，放大器和负载电容器，其中负载电容器包括集成在半导体衬底上的压控可变电容元件和与电压控制的串联连接的直流截止电容器元件 可变电容元件，直流切断电容器元件具有与压控可变电容元件的最大电容值（Cvmax）的比率大于0.5且不大于的电容值（Ccut） 10。
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公开(公告)号：US6023252A
公开(公告)日：2000-02-08
申请号：US539585
申请日：1995-10-05
CPC分类号： G09G5/397 , G09G3/3611 , G09G3/3644 , G09G2340/0414 , G09G2340/045
摘要： An LCD device comprising an LCD for changing the size of a displayed unit of pixels by electrically connecting a plurality of display electrodes in parallel with one another for time-sharing matrix driving liquid crystal pixels arranged as a matrix wherein image data is independently inputted into upper and lower half portions of the LCD, a display controller for outputting upper and lower side image data to be displayed on the upper and lower half portions of the LCD and synchronous signals. The LCD device further comprises an upper side image data-holding memory and a lower side image data-holding memory for dividing image data in a given display area from a screenful of image data outputted from the display controller into new upper and lower side image data to be written and held in the upper and lower side image data-holding memories. The upper and lower side image data held in the upper and lower side memories are read out to be repeatedly displayed on the upper and lower half portions of the LCD. As a result, the image from any desired display area of a full-screen area can be enlargedly displayed on a full-screen area of a display with high quality and be easily visible without being discontinuous.
摘要翻译： 一种LCD装置，包括用于通过将多个显示电极彼此并联电连接以改变所显示的像素单元的尺寸的LCD，用于将矩阵驱动液晶像素排列为矩阵，以将图像数据独立地输入到上部 和LCD的下半部分，用于输出要显示在LCD的上半部分和下半部分上的上下图像数据的显示控制器和同步信号。 LCD装置还包括上侧图像数据保持存储器和下侧图像数据保持存储器，用于将给定显示区域中的图像数据从显示控制器输出的一组图像数据分成新的上下侧图像数据 被写入并保持在上下图像数据保持存储器中。 读出保持在上下侧存储器中的上下侧图像数据，重复显示在LCD的上半部和下半部。 结果，来自全屏幕区域的任何期望的显示区域的图像可以以高质量被放大显示在显示器的全屏区域上，并且容易可见而不会不连续。
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公开(公告)号：US07728685B2
公开(公告)日：2010-06-01
申请号：US12092772
申请日：2006-11-06
申请人： Rikoku Nakamura , Takuo Furuki , Takashi Masuda
发明人： Rikoku Nakamura , Takuo Furuki , Takashi Masuda
摘要： A temperature detection circuit (18) detects temperature around an oscillation circuit (20) equipped with voltage variable capacitors (23, 24). According to its temperature detection signal, a temperature compensation circuit (30) produces a voltage signal as a temperature compensation signal. That voltage signal is supplied to the voltage variable capacitors (23, 24) in order to sustain oscillation frequency of the oscillation circuit (20) at a substantially constant level. When a switch element (1) is, turned on by a non-TCXO signal, both terminals of each voltage variable capacitor (23, 24) are brought to the same potential (ground potential). Consequently, each voltage variable capacitor has a predetermined capacitance and temperature compensation function is made ineffective. In that state, initial frequency regulation is performed under normal temperature.
摘要翻译： 温度检测电路（18）检测配备有电压可变电容器（23,24）的振荡电路（20）周围的温度。 根据其温度检测信号，温度补偿电路（30）产生作为温度补偿信号的电压信号。 该电压信号被提供给电压可变电容器（23,24），以便将振荡电路（20）的振荡频率维持在基本上恒定的水平。 当开关元件（1）由非TCXO信号导通时，每个电压可变电容器（23,24）的两个端子都达到相同的电位（接地电位）。 因此，每个电压可变电容器具有预定的电容，并且使温度补偿功能无效。 在这种状态下，初始频率调节在常温下进行。
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公开(公告)号：US20090115542A1
公开(公告)日：2009-05-07
申请号：US12092772
申请日：2006-11-06
申请人： Rikoku Nakamura , Takuo Furuki , Takashi Masuda
发明人： Rikoku Nakamura , Takuo Furuki , Takashi Masuda
IPC分类号： H03L1/02
摘要： A temperature detection circuit (18) detects temperature around an oscillation circuit (20) equipped with voltage variable capacitors (23, 24). According to its temperature detection signal, a temperature compensation circuit (30) produces a voltage signal as a temperature compensation signal. That voltage signal is supplied to the voltage variable capacitors (23, 24) in order to sustain oscillation frequency of the oscillation circuit (20) at a substantially constant level. When a switch element (1) is, turned on by a non-TCXO signal, both terminals of each voltage variable capacitor (23, 24) are brought to the same potential (ground potential). Consequently, each voltage variable capacitor has a predetermined capacitance and temperature compensation function is made ineffective. In that state, initial frequency regulation is performed under normal temperature.
摘要翻译： 温度检测电路（18）检测配备有电压可变电容器（23,24）的振荡电路（20）周围的温度。 根据其温度检测信号，温度补偿电路（30）产生作为温度补偿信号的电压信号。 该电压信号被提供给电压可变电容器（23,24），以便将振荡电路（20）的振荡频率维持在基本上恒定的水平。 当开关元件（1）由非TCXO信号导通时，每个电压可变电容器（23,24）的两个端子都达到相同的电位（接地电位）。 因此，每个电压可变电容器具有预定的电容，并且使温度补偿功能无效。 在这种状态下，初始频率调节在常温下进行。
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