公开(公告)号：US20120203484A1

公开(公告)日：2012-08-09

申请号：US13365748

申请日：2012-02-03

申请人： Kimio ANDO ,  Shigekane MATSUI ,  Isao YAMAMOTO

发明人： Kimio ANDO ,  Shigekane MATSUI ,  Isao YAMAMOTO

IPC分类号： G01R31/36

CPC分类号： G01R31/3613 ,  H01M2010/4278 ,  H04W52/028 ,  Y02D70/142

摘要： A detection circuit is mounted on an electronic device having a communication function, including at least a battery, a CPU, and a communication unit, and is configured to detect the remaining battery charge. An A/D converter performs sampling of a magnitude of a current IBAT discharged from the battery, and converts the current IBAT thus sampled into a digital current value. An interface circuit receives, from the CPU, control data which indicates a period in which there is an increase in the current discharged from the battery. Based upon the control data, a control unit raises the sampling frequency of the A/D converter in the period in which there is an increase in the current IBAT.

摘要翻译： 检测电路安装在具有通信功能的电子设备上，至少包括电池，CPU和通信单元，并且被配置为检测剩余电池电量。 A / D转换器对从电池放电的电流IBAT的大小进行采样，并将由此采样的电流IBAT转换为数字电流值。 接口电路从CPU接收指示从电池释放的电流增加的期间的控制数据。 基于控制数据，控制单元在当前IBAT增加的时段内提高A / D转换器的采样频率。

公开(公告)号：US20090096382A1

公开(公告)日：2009-04-16

申请号：US12335277

申请日：2008-12-15

申请人： Isao YAMAMOTO ,  Tomoyuki ITO ,  Hiroyuki IWAKI

发明人： Isao YAMAMOTO ,  Tomoyuki ITO ,  Hiroyuki IWAKI

IPC分类号： H05B41/30

CPC分类号： H05B33/0866 ,  H04M1/22 ,  H05B33/0818 ,  H05B33/0857 ,  Y02B20/346

摘要： A drive control circuit sends out pulse signals of various pulse signals so as to control the light emission amount and luminance of LEDs by gradually increasing and decreasing the pulse width in predetermined cycles during predetermined periods based on parameters supplied from an LED drive controller that determine a first emission control processing period, a second emission control processing period, first to fourth slope periods and the like. The tone of an emitted color realized by a plurality of LEDs is controlled by synchronizing the periods of time of light emission control processings.

摘要翻译： 驱动控制电路发出各种脉冲信号的脉冲信号，以便根据从LED驱动控制器提供的参数来逐步增加和减少预定周期内的脉冲宽度来控制LED的发光量和亮度。 第一发光控制处理期间，第二发光控制处理期间，第一至第四斜坡期间等。 通过使发光控制处理的时间段同步来控制由多个LED实现的发射色调的色调。

公开(公告)号：US20110080989A1

公开(公告)日：2011-04-07

申请号：US12968778

申请日：2010-12-15

申请人： Tetsuro HASHIMOTO ,  Akihito ITO ,  Yoshikazu SASAKI ,  Isao YAMAMOTO

发明人： Tetsuro HASHIMOTO ,  Akihito ITO ,  Yoshikazu SASAKI ,  Isao YAMAMOTO

IPC分类号： G06M3/02

CPC分类号： G06F1/24 ,  G06F1/26 ,  G06F1/28

摘要： A start-up circuit receives a start-up signal instructing start-up of an equipment mounted with the circuit, and executes a predetermined sequence when start-up is instructed by the start-up signal. An oscillator generates a clock signal. A sequence circuit receives the start-up signal and a clock signal output from the oscillator, measures time by counting the clock signal when the start-up signal transits to a predetermined level, and executes a predetermined event at a predetermined timing. The oscillator operates for a period where the start-up signal is at the predetermined level if the start-up signal is at the predetermined level during the period the power key of the equipment mounted with the circuit is being pushed.

摘要翻译： 启动电路接收指示启动安装有电路的设备的启动信号，并且在启动信号指示启动时执行预定的顺序。 振荡器产生时钟信号。 序列电路接收启动信号和从振荡器输出的时钟信号，通过在启动信号转换到预定电平时对时钟信号进行计数来测量时间，并在预定定时执行预定事件。 如果启动信号处于预定电平，则在启动信号处于预定电平的期间，振荡器工作在安装有电路的设备的电源键被按下的期间。

公开(公告)号：US20080169870A1

公开(公告)日：2008-07-17

申请号：US12052060

申请日：2008-03-20

申请人： Isao YAMAMOTO ,  Koichi MIYANAGA

发明人： Isao YAMAMOTO ,  Koichi MIYANAGA

IPC分类号： G05F1/10

CPC分类号： G05F1/56

摘要： A first transistor is provided in a first route and a second transistor is provided in a second route, the first route and the second route constituting a current mirror circuit. The sources of the transistors are grounded. In order to match VDS of the first transistor and that of the second transistor match each other, there are provided an operational amplifier receiving the drain voltages of the transistors, and a third transistor having a gate thereof connected to the output of the operational amplifier. The third transistor is provided in the first route. As a result, the current fed to the third transistor is controlled so that VDS of the first transistor and that of the second transistor match each other.

摘要翻译： 第一晶体管设置在第一路径中，第二晶体管设置在第二路径中，第一路线和第二路线构成电流镜电路。 晶体管的源极接地。 为了匹配第一晶体管的V SUB和第二晶体管的V SUB匹配，提供了接收晶体管的漏极电压的运算放大器，以及连接有栅极的第三晶体管 到运算放大器的输出。 第三晶体管设置在第一路径中。 结果，控制馈送到第三晶体管的电流，使得第一晶体管的V SUB和第二晶体管的V DS彼此匹配。

公开(公告)号：US20100270950A1

公开(公告)日：2010-10-28

申请号：US12834952

申请日：2010-07-13

申请人： Yoichi TAMEGAI ,  Isao YAMAMOTO

发明人： Yoichi TAMEGAI ,  Isao YAMAMOTO

IPC分类号： H05B37/02

CPC分类号： H05B41/32

摘要： A control circuit of a DC/DC converter is provided for supplying a driving voltage to a light emitting element. A hysteresis comparator compares a detection voltage that corresponds to the output voltage of the DC/DC converter with two threshold voltages. If the detection voltage is smaller than the lower threshold voltage, the hysteresis comparator outputs a comparison signal at the low level. Otherwise, the comparison signal is set to the high level. The switching control unit uses the comparison signal as a reference. The switching control unit instructs the switching transistor of the DC/DC converter to perform the switching operation during a period when the comparison signal is at the low level. Otherwise, the switching operation is suspended. The control circuit inhibits light emission of the light emitting element during a period when the comparison signal is at the low level. Otherwise, the control circuit permits the light emission.

摘要翻译： 提供DC / DC转换器的控制电路，用于向发光元件提供驱动电压。 滞后比较器将对应于DC / DC转换器的输出电压的检测电压与两个阈值电压进行比较。 如果检测电压小于较低阈值电压，则迟滞比较器输出低电平的比较信号。 否则，将比较信号设置为高电平。 开关控制单元使用比较信号作为参考。 开关控制单元在比较信号为低电平的期间指示DC / DC转换器的开关晶体管进行开关动作。 否则，切换操作被暂停。 在比较信号为低电平的期间，控制电路抑制发光元件的发光。 否则，控制电路允许发光。

公开(公告)号：US20090033366A1

公开(公告)日：2009-02-05

申请号：US12242062

申请日：2008-09-30

申请人： Isao YAMAMOTO

发明人： Isao YAMAMOTO

IPC分类号： H03K17/16

CPC分类号： H04L25/45

摘要： A data transmission system capable of transmitting data at high speed without being bound by a counterpart's power supply voltage can be realized. The data transmission system comprises multiple electronic equipment having individual power supplies, a cable for connecting between the multiple electronic equipment so as to transmit signals therebetween, digital data transmitting circuits extending between the multiple electronic equipment and the cable and each having an open drain type output section at the transmitting end, and an input section provided with a pull-up type resistor at the receiving end, wherein the resistor and the output section are moved from the electronic equipment to the connector of the cable so that parasitic capacitance for restricting time constant of waveforms of signals when rising is changed from a capacitance to a small capacitance.

摘要翻译： 可以实现能够高速传输数据而不受对方的电源电压限制的数据传输系统。 数据传输系统包括具有单独电源的多个电子设备，用于在多个电子设备之间连接以在其间传输信号的电缆，在多个电子设备和电缆之间延伸的每个具有开漏型输出的数字数据传输电路 在接收端具有上拉式电阻器的输入部分，其中电阻器和输出部分从电子设备移动到电缆的连接器，使得用于限制时间常数的寄生电容 的上升时的信号波形从电容变为小电容。

公开(公告)号：US20090108827A1

公开(公告)日：2009-04-30

申请号：US12345493

申请日：2008-12-29

申请人： Yoshikazu SASAKI ,  Tetsuro HASHIMOTO ,  Isao YAMAMOTO

发明人： Yoshikazu SASAKI ,  Tetsuro HASHIMOTO ,  Isao YAMAMOTO

IPC分类号： G05F5/00

CPC分类号： H02M1/36 ,  Y10S323/901

摘要： An under voltage lock out circuit which monitors an input voltage and executes a predetermined sequence when the input voltage satisfies a predetermined condition may include a voltage comparison unit which compares the input voltage and a predetermined threshold voltage, and outputs a comparison signal; a logic circuit which receives the comparison signal output from the voltage comparison unit and a start-up signal instructing start-up of an equipment mounted with the under voltage lock out circuit, and asserts a sequence control signal when start-up is instructed by the start-up signal in a state the input voltage is higher than the threshold voltage; and a sequence circuit which executes a predetermined sequence when the sequence control signal is asserted, wherein the predetermined threshold voltage is switched according to the sequence control signal.

摘要翻译： 当输入电压满足预定条件时，监视输入电压并执行预定序列的欠压锁定电路可以包括比较输入电压和预定阈值电压并输出比较信号的电压比较单元; 接收从电压比较单元输出的比较信号的逻辑电路和指示安装有欠压锁定电路的设备的起动信号的启动信号，并且当启动指示时启动序列控制信号 启动信号处于输入电压高于阈值电压的状态; 以及当所述序列控制信号被断言时执行预定序列的序列电路，其中根据所述序列控制信号切换所述预定阈值电压。

公开(公告)号：US20090108178A1

公开(公告)日：2009-04-30

申请号：US12254470

申请日：2008-10-20

申请人： Tatsuya IWASAKI ,  Koki TAMAKAWA ,  Isao YAMAMOTO

发明人： Tatsuya IWASAKI ,  Koki TAMAKAWA ,  Isao YAMAMOTO

IPC分类号： H01J40/14 ,  G01J1/44

CPC分类号： G01J1/44 ,  G01R19/0092

摘要： A current detection circuit detects photoelectric current that flows through a phototransistor, and outputs a current, which is proportional to the photoelectric current, via an output terminal. An input-side transistor is a PNP bipolar transistor, and is provided on a current path for the phototransistor. Output-side transistors are PNP bipolar transistors. The base terminals thereof are connected to that of the input-side transistor so as to form a common base terminal, and the emitter terminals thereof are connected to that of the input-side transistor so as to form a common emitter terminal, thereby forming a current mirror circuit. Each of first switches is provided between the collector of the corresponding output-side transistor and an output terminal. Each of second switches is provided between the collector of the corresponding output-side transistor and the ground terminal. A control unit controls the ON/OFF operations of the first switches and the second switches.

摘要翻译： 电流检测电路检测流过光电晶体管的光电流，并通过输出端输出与光电流成比例的电流。 输入侧晶体管是PNP双极晶体管，并且设置在用于光电晶体管的电流路径上。 输出侧晶体管是PNP双极晶体管。 其基极连接到输入侧晶体管的基极以形成公共基极，并且其发射极端子连接到输入侧晶体管的发射极端子，以形成公共发射极端子，从而形成 电流镜电路。 每个第一开关设置在相应的输出侧晶体管的集电极和输出端之间。 每个第二开关设置在相应的输出侧晶体管的集电极和接地端子之间。 控制单元控制第一开关和第二开关的ON / OFF操作。

公开(公告)号：US20090045789A1

公开(公告)日：2009-02-19

申请号：US12256861

申请日：2008-10-23

申请人： Yoshikazu SASAKI ,  Isao YAMAMOTO ,  Masao YONEMARU

发明人： Yoshikazu SASAKI ,  Isao YAMAMOTO ,  Masao YONEMARU

IPC分类号： G05F1/56

CPC分类号： G05F1/56 ,  H02M1/08 ,  H02M1/32

摘要： A power supply circuit includes a standard voltage generator; a regulator to control an output voltage, and to be capable of being switched ON/OFF; a capacitor in parallel between the standard voltage generator and the regulator; a discharging circuit including a first switch and a second switch configured to discharge electrical charges from the capacitor via the second switch while the regulator is in an OFF state; and a starting controller configured to transmit a signal for controlling the first switch and the second switch. The first switch is connected in series between the standard voltage generator and the regulator. The second switch has one end connected to a connection node between the first switch and the regulator, and has another end connected to a ground. When the first switch is in OFF state, the second switch is turned to ON state while the regulator is in OFF state.

摘要翻译： 电源电路包括标准电压发生器; 用于控制输出电压并且能够被接通/断开的调节器; 在标准电压发生器和调节器之间并联的电容器; 放电电路，包括第一开关和第二开关，所述第二开关被配置为在所述调节器处于OFF状态时经由所述第二开关从所述电容器放电电荷; 以及启动控制器，被配置为发送用于控制所述第一开关和所述第二开关的信号。 第一个开关串联在标准电压发生器和调节器之间。 第二开关的一端连接到第一开关和调节器之间的连接节点，另一端连接到地。 当第一开关处于OFF状态时，第二开关在调节器处于OFF状态时转为ON状态。

公开(公告)号：US20080309467A1

公开(公告)日：2008-12-18

申请号：US12138609

申请日：2008-06-13

申请人： Kyoichiro ARAKI ,  Isao YAMAMOTO

发明人： Kyoichiro ARAKI ,  Isao YAMAMOTO

IPC分类号： H04B3/36

CPC分类号： G06F3/016

摘要： A driving apparatus drives a mover arranged for feedback of a touch panel. A reference voltage generation unit generates a reference voltage having a signal waveform to be applied to the mover. A pulse modulator generates a PWM signal of which duty ratio is controlled by feedback so that a feedback voltage corresponding to a drive voltage to be applied to the mover approaches the reference voltage. A switching element of the DC/DC converter is turned ON/OFF by a PWM signal from the pulse modulator, so that an output voltage of the DC/DC converter is controlled, and a drive voltage corresponding to the output voltage is applied to the mover.

摘要翻译： 驾驶装置驱动布置成用于触摸面板的反馈的移动器。 参考电压产生单元产生具有要施加到移动器的信号波形的参考电压。 脉冲调制器产生PWM信号，其中占空比由反馈控制，使得与施加到移动器的驱动电压相对应的反馈电压接近参考电压。 通过来自脉冲调制器的PWM信号使DC / DC转换器的开关元件接通/断开，从而控制DC / DC转换器的输出电压，并将对应于输出电压的驱动电压施加到 移动者