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    • 1. 发明授权
    • Current driving device
    • 当前驱动装置
    • US07995047B2
    • 2011-08-09
    • US11954659
    • 2007-12-12
    • Makoto MizukiKazuyoshi NishiTetsuro OhmoriTomokazu KojimaHiroshi Kojima
    • Makoto MizukiKazuyoshi NishiTetsuro OhmoriTomokazu KojimaHiroshi Kojima
    • G05F1/10
    • G05F3/26
    • A current driving device comprises: a voltage supply part; a current supply part; and a plurality of current output parts, each comprising a current-voltage converting function, a voltage-current converting function, and a voltage holding capacitance element. The current output part takes three operation modes. Under a voltage supply mode, the current output part receives a voltage from the voltage supply part and holds the voltage in the voltage holding capacitance element. Under a current supply mode, the current output part receives the current from the current supply part, generates a second voltage by the current-voltage converting function and holds the voltage in the voltage holding capacitance element. Under a current output part, the current output part outputs an output current according to the voltage held in the voltage holding capacitance element by the voltage-current converting function. By charging the current output part with the reference voltage before the calibration performed by using the reference current, calibration of the current output part is performed at a high speed.
    • 电流驱动装置包括:电压供应部; 当前供应部分; 以及多个电流输出部,各自包括电流 - 电压转换功能,电压 - 电流转换功能和电压保持电容元件。 当前输出部分采用三种操作模式。 在电压供给模式下,电流输出部从电压供给部接收电压,并将电压保持在电压保持电容元件中。 在电流供给模式下,电流输出部从电流供给部接收电流,通过电流电压转换功能产生第二电压,并将电压保持在电压保持电容元件中。 在电流输出部分下,电流输出部分根据电压 - 电流转换功能根据保持在电压保持电容元件中的电压输出输出电流。 在通过使用参考电流进行校准之前,通过对参考电压进行充电,对当前输出部分进行高速执行。
    • 4. 发明申请
    • CURRENT DRIVING DEVICE
    • 当前驱动装置
    • US20080143429A1
    • 2008-06-19
    • US11954659
    • 2007-12-12
    • Makoto MIZUKIKazuyoshi NishiTetsuro OhmoriTomokazu KojimaHiroshi Kojima
    • Makoto MIZUKIKazuyoshi NishiTetsuro OhmoriTomokazu KojimaHiroshi Kojima
    • G05F1/10
    • G05F3/26
    • A current driving device comprises: a voltage supply part; a current supply part; and a plurality of current output parts, each comprising a current-voltage converting function, a voltage-current converting function, and a voltage holding capacitance element. The current output part takes three operation modes. Under a voltage supply mode, the current output part receives a voltage from the voltage supply part and holds the voltage in the voltage holding capacitance element. Under a current supply mode, the current output part receives the current from the current supply part, generates a second voltage by the current-voltage converting function and holds the voltage in the voltage holding capacitance element. Under a current output part, the current output part outputs an output current according to the voltage held in the voltage holding capacitance element by the voltage-current converting function. By charging the current output part with the reference voltage before the calibration performed by using the reference current, calibration of the current output part is performed at a high speed.
    • 电流驱动装置包括:电压供应部; 当前供应部分; 以及多个电流输出部,各自包括电流 - 电压转换功能,电压 - 电流转换功能和电压保持电容元件。 当前输出部分采用三种操作模式。 在电压供给模式下,电流输出部从电压供给部接收电压,并将电压保持在电压保持电容元件中。 在电流供给模式下,电流输出部从电流供给部接收电流,通过电流电压转换功能产生第二电压,并将电压保持在电压保持电容元件中。 在电流输出部分下,电流输出部分根据电压 - 电流转换功能根据保持在电压保持电容元件中的电压输出输出电流。 在通过使用参考电流进行校准之前,通过对参考电压进行充电,对当前输出部分进行高速执行。
    • 5. 发明授权
    • Differential amplifier circuit
    • 差分放大电路
    • US5973558A
    • 1999-10-26
    • US102581
    • 1998-06-23
    • Yoshito DateTetsuro Ohmori
    • Yoshito DateTetsuro Ohmori
    • H03F3/45H03F1/02H03F1/14
    • H03F1/0244
    • It is an object of this invention to provide a differential amplifying apparatus capable of increasing the speed at which a standby state is changed to a normal state and reducing distorted waves. The present differential amplifying apparatus comprises: a differential circuit (1); an output circuit (2); bias voltage generating circuits (608, 610); a switch (609) for controlling the bias voltage generating circuits; a transistor (201) and a capacitor (203) connected in series between the output of the bias voltage generating circuit and a ground; a transistor (202) connected in parallel with the capacitor (203). A signal having the same polarity as a signal STBY controlling the switch (609) is supplied to the gate of the transistor (201), while a signal having a polarity opposite to that of the signal STBY is supplied to the gate of the transistor (202). Electric charge in a parasitic capacitance 611 of a bias signal VBIAS is also discharged through the capacitor (203) added separately from a resistor (610), thereby reducing the discharge time.
    • 本发明的目的是提供一种差动放大装置,其能够将待机状态改变为正常状态的速度并减少失真的波。 本差分放大装置包括:差分电路(1); 输出电路(2); 偏置电压发生电路(608,610); 用于控制偏压生成电路的开关(609); 串联连接在偏置电压发生电路的输出端和地之间的晶体管(201)和电容器(203); 与电容器(203)并联连接的晶体管(202)。 具有与控制开关(609)的信号STBY相同极性的信号被提供给晶体管(201)的栅极,而具有与信号STBY的极性相反的极性的信号被提供给晶体管的栅极( 202)。 偏置信号VBIAS的寄生电容611中的电荷也通过与电阻(610)分开添加的电容器(203)放电,从而减少放电时间。
    • 8. 发明授权
    • Liquid crystal display control system including storage means and D/A
converters
    • 液晶显示控制系统包括存储装置和D / A转换器
    • US5648791A
    • 1997-07-15
    • US455348
    • 1995-05-31
    • Yoshito DateShoichi TakeshitaTetsuro OhmoriJunji NakatsukaYoshio Imamura
    • Yoshito DateShoichi TakeshitaTetsuro OhmoriJunji NakatsukaYoshio Imamura
    • G02F1/133G09G3/20G09G3/36H03M1/66H03M1/80
    • G09G3/2011G09G3/3648G09G3/3688H03M1/804G09G2310/027G09G3/3614
    • A liquid crystal display control system comprises a liquid crystal panel, a plurality of data latches for storing digital gray scale data, and a plurality of D/A converters for converting the outputs of the data latches into analog signals to be applied to the liquid crystal panel. The display data is digital signals, and the digital signals are processed up to the D/A converters just before the liquid crystal panel. Afterwards, the digital signals are converted into analog signals in the horizontal display period of relatively slow operating speed, and therefore analog circuits having many adjusting points may be reduced. Accordingly, the adjusting positions are reduced, and the adjusting process in mass production is simplified. In the case of a large screen display, in particular, although the data transfer speed is high, since the display data are digital signals, a high display quality is obtained by transferring the signals without deteriorating the display data. Moreover, the constitution is composed of digital circuits up to the D/A converters just before the liquid crystal panel, and therefore, the power consumption is small, and the economy and portability are excellent, while the mounting area is reduced, thereby realizing a liquid crystal display control system of small size and light weight.
    • 一种液晶显示控制系统,包括液晶面板,用于存储数字灰度数据的多个数据锁存器和用于将数据锁存器的输出转换成要施加到液晶的模拟信号的多个D / A转换器 面板。 显示数据是数字信号,数字信号在液晶面板之前被处理到D / A转换器。 之后,数字信号在相对较慢的运行速度的水平显示周期中被转换为模拟信号,因此可以减少具有许多调整点的模拟电路。 因此,调整位置减少,并且大规模生产中的调整过程被简化。 在大屏幕显示的情况下,特别是尽管数据传送速度较高,由于显示数据是数字信号,通过传送信号而不会使显示数据恶化,可以获得高显示质量。 另外,在液晶面板之前由D / A转换器构成数字电路,因此功耗小,经济性和便携性优异,同时安装面积减小,从而实现 液晶显示控制系统体积小,重量轻。
    • 9. 发明授权
    • Liquid crystal display control system including storage means and D/A
converters
    • 液晶显示控制系统包括存储装置和D / A转换器
    • US5453757A
    • 1995-09-26
    • US391616
    • 1995-02-21
    • Yoshito DateShoichi TakeshitaTetsuro OhmoriJunji NakatsukaYoshio Imamura
    • Yoshito DateShoichi TakeshitaTetsuro OhmoriJunji NakatsukaYoshio Imamura
    • G02F1/133G09G3/20G09G3/36H03M1/66H03M1/80
    • G09G3/2011G09G3/3648G09G3/3688H03M1/804G09G2310/027G09G3/3614
    • A liquid crystal display control system comprises a liquid crystal panel, a plurality of data latches for storing digital gray scale data, and a plurality of D/A converters for converting the outputs of the data latches into analog signals to be applied to the liquid crystal panel. The display data is digital signals, and the digital signals are processed up to the D/A converters just before the liquid crystal panel. Afterwards, the digital signals are converted into analog signals in the horizontal display period of relatively slow operating speed, and therefore analog circuits having many adjusting points may be reduced. Accordingly, the adjusting positions are reduced, and the adjusting process in mass production is simplified. In the case of a large screen display, in particular, although the data transfer speed is high, since the display data are digital signals, a high display quality is obtained by transferring the signals without deteriorating the display data. Moreover, the constitution is composed of digital circuits up to the D/A converters just before the liquid crystal panel, and therefore, the power consumption is small, and the economy and portability are excellent, while the mounting area is reduced, thereby realizing a liquid crystal display control system of small size and light weight.
    • 一种液晶显示控制系统,包括液晶面板,用于存储数字灰度数据的多个数据锁存器和用于将数据锁存器的输出转换成要施加到液晶的模拟信号的多个D / A转换器 面板。 显示数据是数字信号,数字信号在液晶面板之前被处理到D / A转换器。 之后,数字信号在相对较慢的运行速度的水平显示周期中被转换为模拟信号,因此可以减少具有许多调整点的模拟电路。 因此,调整位置减少,并且大规模生产中的调整过程被简化。 在大屏幕显示的情况下,特别是尽管数据传送速度较高,由于显示数据是数字信号,通过传送信号而不会使显示数据恶化,可以获得高显示质量。 另外,在液晶面板之前由D / A转换器构成数字电路,因此功耗小,经济性和便携性优异,同时安装面积减小,从而实现 液晶显示控制系统体积小,重量轻。