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    • 42. 发明授权
    • Communication device, communication method, and computer-readable storage medium
    • 通信设备,通信方式和计算机可读存储介质
    • US09288437B2
    • 2016-03-15
    • US14290031
    • 2014-05-29
    • Tomoyuki Goto
    • Tomoyuki Goto
    • H04N7/14H04N7/15
    • H04N7/15
    • A communication device includes a determination unit that determines whether there is a speaker in different hubs by using sets of sound-related information that are transmitted from the respective different hubs via a communication network; and a display unit that displays, in a predetermined size on a display surface, an image that is transmitted from a different hub in which the determination unit determines that there is no speaker, and that displays, in an enlarged size larger than the predetermined size on the display surface, an image that is transmitted from a different hub in which the determination unit determines that there is a speaker. When the determination unit determines that there are speakers in multiple different hubs, the display unit collectively displays, in the enlarged size on the display surface, multiple images that are transmitted from the respective different hubs.
    • 通信装置包括通过使用经由通信网络从各个不同集线器发送的声音相关信息的集合来确定是否存在不同集线器中的扬声器的确定单元; 以及显示单元,其以显示表面上的预定大小显示从其中所述确定单元确定不存在扬声器的不同集线器发送的图像,并且以比预定尺寸大的尺寸显示 在显示表面上,从确定单元确定存在扬声器的不同集线器发送的图像。 当确定单元确定在多个不同集线器中存在扬声器时,显示单元以显示表面上的放大尺寸共同显示从各个不同集线器发送的多个图像。
    • 43. 发明授权
    • LED dimmer circuit
    • LED调光电路
    • US08736194B2
    • 2014-05-27
    • US13432798
    • 2012-03-28
    • Shuhei KawaiTomoyuki GotoFeng Xu
    • Shuhei KawaiTomoyuki GotoFeng Xu
    • H05B37/02
    • H05B33/0851H05B33/0815H05B33/0818
    • A TRIAC dimmer gates an AC waveform from an AC power source in proportion to a control signal and outputs a TRIAC pulse having part of the waveform missing. The TRIAC pulse is rectified and is applied to an LED array and the drive current flowing to the LED array is detected at a current detection resistor. The drive current value and a predetermined value are compared at a comparator and in accordance with the comparison result thereof the control transistor is turned off. Then, the TRIAC pulse is converted to a DC voltage signal and in accordance with the obtained DC voltage signal the drive current value or the predetermined value input by the comparator are changed. Furthermore, instead of the TRIAC pulse, a PWM pulse supplied from an external source may also be utilized.
    • TRIAC调光器根据控制信号与AC电源对交流波形进行门控,并输出一部分波形丢失的TRIAC脉冲。 TRIAC脉冲被整流并施加到LED阵列,并且在电流检测电阻器处检测流到LED阵列的驱动电流。 驱动电流值和预定值在比较器处进行比较,并根据其比较结果控制晶体管截止。 然后,将TRIAC脉冲转换成直流电压信号,并且根据获得的直流电压信号,改变由比较器输入的驱动电流值或预定值。 此外,也可以使用从外部源提供的PWM脉冲来代替TRIAC脉冲。
    • 45. 发明申请
    • LIGHT EMITTING ELEMENT DRIVING CIRCUIT
    • 发光元件驱动电路
    • US20130002161A1
    • 2013-01-03
    • US13495618
    • 2012-06-13
    • Feng XuShuhei KawaiTomoyuki Goto
    • Feng XuShuhei KawaiTomoyuki Goto
    • H05B37/00
    • H05B33/0824H05B33/0851
    • A light emitting element driving circuit comprising: a rectifying circuit; a voltage-dividing circuit; a transistor increasing or reducing a driving current of a light emitting element according to turning on or off a rectified voltage; a control circuit bringing the transistor to an on or off state at predetermined intervals and bringing the transistor to the other state when a voltage according to a current flowing through the transistor increases and becomes the reference voltage being divided voltage obtained by dividing the rectified voltage; and a voltage-dividing ratio adjustment circuit to set a voltage-dividing ratio of the voltage dividing circuit as a first voltage-dividing ratio to reduce the reference voltage when an amplitude of the rectified voltage is larger than predetermined amplitude and to set the voltage-dividing ratio as a second voltage-dividing ratio to increase the reference voltage when an amplitude of the rectified voltage is smaller than predetermined amplitude.
    • 一种发光元件驱动电路,包括:整流电路; 分压电路; 晶体管,通过导通或截止整流电压来增加或减小发光元件的驱动电流; 控制电路,其以预定间隔使晶体管处于导通或截止状态,并且当根据流过晶体管的电流的电压增加时将晶体管置于另一状态,并将其作为通过分压整流电压而获得的分压的基准电压; 以及分压比调整电路,当整流电压的振幅大于预定振幅时,将分压电路的分压比设定为第一分压比,以降低基准电压, 分压比作为第二分压比,当整流电压的振幅小于预定幅度时增加参考电压。
    • 46. 发明申请
    • LED DIMMER CIRCUIT
    • LED调光电路
    • US20120249000A1
    • 2012-10-04
    • US13432798
    • 2012-03-28
    • Shuhei KawaiTomoyuki GotoFeng Xu
    • Shuhei KawaiTomoyuki GotoFeng Xu
    • H05B37/02
    • H05B33/0851H05B33/0815H05B33/0818
    • A TRIAC dimmer gates an AC waveform from an AC power source in proportion to a control signal and outputs a TRIAC pulse having part of the waveform missing. The TRIAC pulse is rectified and is applied to an LED array and the drive current flowing to the LED array is detected at a current detection resistor. The drive current value and a predetermined value are compared at a comparator and in accordance with the comparison result thereof the control transistor is turned off. Then, the TRIAC pulse is converted to a DC voltage signal and in accordance with the obtained DC voltage signal the drive current value or the predetermined value input by the comparator are changed. Furthermore, instead of the TRIAC pulse, a PWM pulse supplied from an external source may also be utilized.
    • TRIAC调光器根据控制信号与交流电源门控交流波形,并输出一部分波形丢失的TRIAC脉冲。 TRIAC脉冲被整流并施加到LED阵列,并且在电流检测电阻器处检测流到LED阵列的驱动电流。 驱动电流值和预定值在比较器处进行比较,并根据其比较结果控制晶体管截止。 然后,将TRIAC脉冲转换成直流电压信号,并且根据获得的直流电压信号,改变由比较器输入的驱动电流值或预定值。 此外,也可以使用从外部源提供的PWM脉冲来代替TRIAC脉冲。
    • 48. 发明授权
    • Semiconductor unit for protecting secondary battery, battery pack having the semiconductor unit built-in and electronic apparatus using it
    • 用于保护二次电池的半导体单元,具有内置半导体单元的电池组和使用其的电子设备
    • US07816890B2
    • 2010-10-19
    • US12091981
    • 2007-08-31
    • Tomoyuki Goto
    • Tomoyuki Goto
    • H02J7/00
    • H01M10/44G01R31/3627G01R31/3648H01M2/34H01M10/0525H01M10/425H02J7/0029H02J2007/0037H02J2007/0039H02J2007/004
    • A semiconductor unit for protecting a secondary battery has a current detecting terminal converting a charging current to a negative voltage with respect to a negative electrode potential (ground potential) of the secondary battery when the secondary battery is charged, converting the charging current to a positive voltage with respect to the negative electrode potential (ground potential) of the secondary battery when the secondary battery is discharged, and detecting the charging/discharging current; and a test signal generating circuit generating a first test signal when the voltage of the current detecting terminal lowers to a first negative voltage which does not occur in a normal operation state of the semiconductor unit, and generating a second test signal when the voltage of the current detecting terminal lowers to a second negative voltage lower than the first negative voltage.
    • 用于保护二次电池的半导体单元具有电流检测端子,当二次电池充电时,电流检测端子将相对于二次电池的负极电位(接地电位)将充电电流转换为负电压,将充电电流转换为正 在二次电池放电时相对于二次电池的负极电位(接地电位)的电压,检测充放电电流; 以及测试信号发生电路,当电流检测端子的电压降低到在半导体单元的正常工作状态下不发生的第一负电压时,产生第一测试信号,当产生第二测试信号时,产生第二测试信号 电流检测端子降低到低于第一负电压的第二负电压。