公开(公告)号：US20080143697A1

公开(公告)日：2008-06-19

申请号：US11955936

申请日：2007-12-13

申请人： Tomokazu Kojima

发明人： Tomokazu Kojima

IPC分类号： G06F3/038

CPC分类号： G09G3/3688 ,  G09G2310/06

摘要： A buffer generates a load drive voltage by impedance-converting an input signal and outputs the generated load drive voltage to a load circuit. An input level controller controls a voltage of the input signal to be a boost voltage having a potential higher than that of a targeted drive voltage of the load drive voltage during a certain period in an initial stage where the voltage of the input signal is changed, and controls the voltage of the input signal to be the targeted drive voltage during the period other than the certain period in the initial stage of the voltage change.

摘要翻译： 缓冲器通过对输入信号进行阻抗转换来产生负载驱动电压，并将所产生的负载驱动电压输出到负载电路。 输入电平控制器在输入信号的电压改变的初始阶段中将输入信号的电压控制为具有比负载驱动电压的目标驱动电压的电位高的升压电压， 并且在电压变化的初始阶段以外的期间内将输入信号的电压控制为目标驱动电压。

公开(公告)号：US07995047B2

公开(公告)日：2011-08-09

申请号：US11954659

申请日：2007-12-12

申请人： Makoto Mizuki ,  Kazuyoshi Nishi ,  Tetsuro Ohmori ,  Tomokazu Kojima ,  Hiroshi Kojima

发明人： Makoto Mizuki ,  Kazuyoshi Nishi ,  Tetsuro Ohmori ,  Tomokazu Kojima ,  Hiroshi Kojima

IPC分类号： G05F1/10

CPC分类号： G05F3/26

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07944274B2

公开(公告)日：2011-05-17

申请号：US12900179

申请日：2010-10-07

申请人： Takahito Kushima ,  Tomokazu Kojima

发明人： Takahito Kushima ,  Tomokazu Kojima

IPC分类号： G05F3/02

CPC分类号： H03K19/0944 ,  H03K17/063 ,  H03K2217/0018

摘要： A challenge in outputting a voltage near the midpoint potential in a semiconductor switch which operates based on a low voltage power supply is to avoid a decrease in operation speed and a deterioration in accuracy of the output voltage which would be caused due to an increase in ON-resistance or occurrence of current leakage. Thus, a structure including a gray level generation circuit, an analog switch circuit and a backgate voltage control circuit is provided wherein the backgate voltage of each of an N-channel MOS transistor and a P-channel MOS transistor of the analog switch circuit to which the voltage of the gray level generation circuit is input is supplied from the backgate voltage control circuit which has an equal structure as that of the gray level generation circuit.

摘要翻译： 在基于低电压电源工作的半导体开关中输出靠近中点电位的电压的挑战是避免由于ON的增加而导致的操作速度的降低和输出电压的精度降低 电阻或电流泄漏发生。 因此，提供了包括灰度级发生电路，模拟开关电路和背栅电压控制电路的结构，其中模拟开关电路的N沟道MOS晶体管和P沟道MOS晶体管中的每一个的背栅电压至 从具有与灰度级发生电路相同结构的背栅电压控制电路输入灰度电平发生电路的电压。

公开(公告)号：US20110018614A1

公开(公告)日：2011-01-27

申请号：US12900179

申请日：2010-10-07

申请人： Takahito KUSHIMA ,  Tomokazu Kojima

发明人： Takahito KUSHIMA ,  Tomokazu Kojima

IPC分类号： G05F3/02

CPC分类号： H03K19/0944 ,  H03K17/063 ,  H03K2217/0018

摘要： A challenge in outputting a voltage near the midpoint potential in a semiconductor switch which operates based on a low voltage power supply is to avoid a decrease in operation speed and a deterioration in accuracy of the output voltage which would be caused due to an increase in ON-resistance or occurrence of current leakage. Thus, a structure including a gray level generation circuit, an analog switch circuit and a backgate voltage control circuit is provided wherein the backgate voltage of each of an N-channel MOS transistor and a P-channel MOS transistor of the analog switch circuit to which the voltage of the gray level generation circuit is input is supplied from the backgate voltage control circuit which has an equal structure as that of the gray level generation circuit.

摘要翻译： 在基于低电压电源工作的半导体开关中输出靠近中点电位的电压的挑战是避免由于ON的增加而导致的操作速度的降低和输出电压的精度降低 电阻或电流泄漏发生。 因此，提供了包括灰度级发生电路，模拟开关电路和背栅电压控制电路的结构，其中模拟开关电路的N沟道MOS晶体管和P沟道MOS晶体管中的每一个的背栅电压至 从具有与灰度级发生电路相同结构的背栅电压控制电路输入灰度电平发生电路的电压。

公开(公告)号：US07817148B2

公开(公告)日：2010-10-19

申请号：US11651962

申请日：2007-01-11

申请人： Tomokazu Kojima ,  Hiroshi Kojima ,  Tetsuro Omori

发明人： Tomokazu Kojima ,  Hiroshi Kojima ,  Tetsuro Omori

IPC分类号： G06F3/038

CPC分类号： G09G3/20 ,  G09G2310/027

摘要： A voltage generating system has a first voltage generating device for generating a plurality of voltages between a maximum voltage and a minimum voltage as a first set of voltages, and a second voltage generating device for generating a plurality of voltages between the maximum voltage and the minimum voltage as a second set of voltages, the second set of voltages being different from the first set of voltages. The first voltage generating device generates the maximum voltage, and supplies the first set of voltages and the maximum voltage to the second voltage generating device. The second voltage generating device generates the minimum voltage, and supplies the second set of voltages and the minimum voltage to the first voltage generating device. The first and second voltage generating devices each select a voltage from the first and second sets of voltages, and output the selected voltage.

摘要翻译： 电压发生系统具有第一电压产生装置，用于产生作为第一组电压的最大电压和最小电压之间的多个电压;以及第二电压产生装置，用于在最大电压和最小值之间产生多个电压 电压作为第二组电压，第二组电压不同于第一组电压。 第一电压产生装置产生最大电压，并将第一组电压和最大电压提供给第二电压产生装置。 第二电压产生装置产生最小电压，并将第二组电压和最小电压提供给第一电压产生装置。 第一和第二电压产生装置各自从第一和第二组电压中选择电压，并输出所选择的电压。

公开(公告)号：US07411585B2

公开(公告)日：2008-08-12

申请号：US11076529

申请日：2005-03-10

申请人： Tomokazu Kojima

发明人： Tomokazu Kojima

IPC分类号： G09G3/36

CPC分类号： G09G3/3696 ,  G09G3/3655

摘要： A driving voltage generation device includes: a first selector section for receiving a plurality of first supply voltages and outputting one of the first supply voltages; a second selector section for receiving a plurality of second supply voltages and outputting one of the second supply voltages; first to fourth switches connected in series between the first selector section and the second selector section; a first specified voltage supply section for supplying a first specified voltage to a first interconnection node between the first switch and the second switch; and a second specified voltage supply section for supplying a second specified voltage to a second interconnection node between the third switch and the fourth switch. The first specified voltage supply section does not supply the first specified voltage when the first switch is on. The second specified voltage supply section does not supply the second specified voltage when the fourth switch is on. An output of the first specified voltage supply section has a lower impedance than that of the second selector section. An output of the second specified voltage supply section has a lower impedance than that of the first selector section.

摘要翻译： 驱动电压产生装置包括：第一选择器部分，用于接收多个第一电源电压并输出第一电源电压之一; 第二选择器部分，用于接收多个第二电源电压并输出第二电源电压之一; 第一至第四开关串联连接在第一选择器部分和第二选择器部分之间; 第一指定电压供应部分，用于将第一指定电压提供给第一开关和第二开关之间的第一互连节点; 以及第二指定电压供应部分，用于将第二指定电压提供给第三开关和第四开关之间的第二互连节点。 当第一个开关打开时，第一个指定的电源部分不提供第一个指定的电压。 当第四个开关打开时，第二个指定的电源部分不提供第二个指定的电压。 第一指定电压部分的输出具有比第二选择器部分低的阻抗。 第二规定电压供给部的输出的阻抗比第一选择部的阻抗低。

公开(公告)号：US07385581B2

公开(公告)日：2008-06-10

申请号：US11071168

申请日：2005-03-04

申请人： Tomokazu Kojima ,  Tsutomu Sakakibara

发明人： Tomokazu Kojima ,  Tsutomu Sakakibara

IPC分类号： G09G3/36

CPC分类号： G09G3/3666 ,  G09G3/3696

摘要： A driving voltage control device includes a first to fourth capacitor, and an output section. In the first mode, the first capacitor receives a first voltage and stores a corresponding amount of charge, the second capacitor receives a second voltage and stores a corresponding amount of charge, and the output section supplies either one of a voltage according to the amount of charge stored in the first capacitor or second capacitor to a first output node according to a predetermined timing. In the second mode, the third capacitor receives a third voltage and stores a corresponding amount of charge, the fourth capacitor receives a fourth voltage and stores a corresponding amount of charge, and the output section supplies either one of a voltage according to the amount of charge stored in the third capacitor or fourth capacitor to a second output node according to a predetermined timing.

摘要翻译： 驱动电压控制装置包括第一至第四电容器和输出部分。 在第一模式中，第一电容器接收第一电压并存储相应的电荷量，第二电容器接收第二电压并存储相应的电荷量，并且输出部分提供根据 根据预定定时，存储在第一电容器或第二电容器中的电荷到第一输出节点。 在第二模式中，第三电容器接收第三电压并存储相应的电荷量，第四电容器接收第四电压并存储相应的电荷量，并且输出部分提供根据 根据预定定时，存储在第三电容器或第四电容器中的电荷到第二输出节点。

公开(公告)号：US20070159475A1

公开(公告)日：2007-07-12

申请号：US11651962

申请日：2007-01-11

申请人： Tomokazu Kojima ,  Hiroshi Kojima ,  Tetsuro Omori

发明人： Tomokazu Kojima ,  Hiroshi Kojima ,  Tetsuro Omori

IPC分类号： G09G5/00

CPC分类号： G09G3/20 ,  G09G2310/027

摘要： A voltage generating system has a first voltage generating device for generating a plurality of voltages between a maximum voltage and a minimum voltage as a first set of voltages, and a second voltage generating device for generating a plurality of voltages between the maximum voltage and the minimum voltage as a second set of voltages, the second set of voltages being different from the first set of voltages. The first voltage generating device generates the maximum voltage, and supplies the first set of voltages and the maximum voltage to the second voltage generating device. The second voltage generating device generates the minimum voltage, and supplies the second set of voltages and the minimum voltage to the first voltage generating device. The first and second voltage generating devices each select a voltage from the first and second sets of voltages, and output the selected voltage.

摘要翻译： 电压发生系统具有第一电压产生装置，用于产生作为第一组电压的最大电压和最小电压之间的多个电压;以及第二电压产生装置，用于在最大电压和最小值之间产生多个电压 电压作为第二组电压，第二组电压不同于第一组电压。 第一电压产生装置产生最大电压，并且将第一组电压和最大电压提供给第二电压产生装置。 第二电压产生装置产生最小电压，并将第二组电压和最小电压提供给第一电压产生装置。 第一和第二电压产生装置各自从第一和第二组电压中选择电压，并输出所选择的电压。

公开(公告)号：US20070139021A1

公开(公告)日：2007-06-21

申请号：US11639280

申请日：2006-12-15

申请人： Tomokazu Kojima ,  Minoru Honda

发明人： Tomokazu Kojima ,  Minoru Honda

IPC分类号： G05F1/70

CPC分类号： H03F3/45475 ,  H03F1/56 ,  H03F2203/45674

摘要： an operational amplifier generates a power supply potential from a reference potential. An impedance adjuster adjusts an output impedance of the operational amplifier in accordance with a control signal. A charge accumulator accumulates an output charge of the operational amplifier whose impedance is adjusted by the impedance adjuster. A comparator compares an output voltage of the operational amplifier before the impedance adjustment by the impedance adjuster and the output voltage of the operational amplifier after the impedance adjustment by the impedance adjuster to each other, and the comparator further generates the control signal in accordance with a result of the comparison so as to output the generated control signal to the impedance adjuster.

摘要翻译： 运算放大器从参考电位产生电源电位。 阻抗调节器根据控制信号调整运算放大器的输出阻抗。 电荷累加器累积运算放大器的输出电荷，其阻抗由阻抗调节器调节。 比较器在通过阻抗调节器进行的阻抗调整之后，将由阻抗调节器进行的阻抗调整之前的运算放大器的输出电压与运算放大器的输出电压进行比较，并且比较器进一步根据 比较结果，将所生成的控制信号输出到阻抗调节器。

公开(公告)号：US20050206602A1

公开(公告)日：2005-09-22

申请号：US11076529

申请日：2005-03-10

申请人： Tomokazu Kojima

发明人： Tomokazu Kojima

IPC分类号： G09G3/36 ,  G09G3/20 ,  H03K19/00

CPC分类号： G09G3/3696 ,  G09G3/3655

摘要： A driving voltage generation device includes: a first selector section for receiving a plurality of first supply voltages and outputting one of the first supply voltages; a second selector section for receiving a plurality of second supply voltages and outputting one of the second supply voltages; first to fourth switches connected in series between the first selector section and the second selector section; a first specified voltage supply section for supplying a first specified voltage to a first interconnection node between the first switch and the second switch; and a second specified voltage supply section for supplying a second specified voltage to a second interconnection node between the third switch and the fourth switch. The first specified voltage supply section does not supply the first specified voltage when the first switch is on. The second specified voltage supply section does not supply the second specified voltage when the fourth switch is on. An output of the first specified voltage supply section has a lower impedance than that of the second selector section. An output of the second specified voltage supply section has a lower impedance than that of the first selector section.

摘要翻译： 驱动电压产生装置包括：第一选择器部分，用于接收多个第一电源电压并输出第一电源电压之一; 第二选择器部分，用于接收多个第二电源电压并输出第二电源电压之一; 第一至第四开关串联连接在第一选择器部分和第二选择器部分之间; 第一指定电压供应部分，用于将第一指定电压提供给第一开关和第二开关之间的第一互连节点; 以及第二指定电压供应部分，用于将第二指定电压提供给第三开关和第四开关之间的第二互连节点。 当第一个开关打开时，第一个指定的电源部分不提供第一个指定的电压。 当第四个开关打开时，第二个指定的电源部分不提供第二个指定的电压。 第一指定电压部分的输出具有比第二选择器部分低的阻抗。 第二规定电压供给部的输出的阻抗比第一选择部的阻抗低。