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    • 45. 发明授权
    • Ladder-type signal attenuator
    • 梯形信号衰减器
    • US4468607A
    • 1984-08-28
    • US374886
    • 1982-05-04
    • Kouji TanakaSusumu Yamada
    • Kouji TanakaSusumu Yamada
    • H03H7/24H03H7/26H03K13/02
    • H03H7/24
    • A ladder-type signal attenuator comprises a ladder network (50) storing a ladder resistor circuit of a plurality of stages (n-1) each having an input resistor (2R) and an output resistor (R) and a ladder portion of the final stage (n) having an input resistor (8) and an output resistor (7) and coupled to the ladder resistor circuit. The resistance value (RB) of the input resistor (8) of the ladder portion of the final stage is different from 2R and/or the resistance value (RA) of the output resistor (7) is different from R. A bias voltage (Vb) or an analog input signal (Sin) is selectively applied to a corresponding signal input terminal of the ladder circuit (50) by means of switches (S.sub.1 to S.sub.n) in response to control data (b.sub.1 to b.sub.n) of n bits. At least one of the resistance values of the two resistors (7, 8) of the final stage ladder portion is changed as a function of the state "0" or "1" of the final bit (b.sub.n ) of the control data, whereby the ratio of the output to the input of the ladder-type signal attenuator with respect to the control data is approximated in a polygonal line manner to a desired curve.
    • 梯形信号衰减器包括:梯形网络(50),其存储多个级(n-1)的梯形电阻电路,每个级具有输入电阻器(2R)和输出电阻器(R),梯形部分的最终级 阶段(n)具有输入电阻器(8)和输出电阻器(7)并且耦合到梯形电阻器电路。 最后级的梯形部分的输入电阻器(8)的电阻值(RB)不同于2R和/或输出电阻器(7)的电阻值(RA)不同于R。偏置电压( Vb)或模拟输入信号(Sin)响应于n位的控制数据(b1至bn),通过开关(S1至Sn)选择性地施加到梯形电路(50)的相应信号输入端。 根据控制数据的最终位(bn)的状态“0”或“1”,最终级梯部分的两个电阻(7,8)的电阻值中的至少一个被改变,由此 相对于控制数据的梯形信号衰减器的输出与输入的比率以折线近似为期望的曲线。
    • 47. 发明授权
    • Remaining battery power calculation circuit
    • 剩余电池功率计算电路
    • US08664919B2
    • 2014-03-04
    • US13226050
    • 2011-09-06
    • Susumu YamadaHideo KondoSeiji Takai
    • Susumu YamadaHideo KondoSeiji Takai
    • H01M10/46
    • G01R31/3644G01R31/3651
    • A remaining battery power calculation circuit includes: a detection unit configured to detect an output voltage of a battery; a data storage unit configured to store data in an associated manner with each of a plurality of current values for charge or discharge of the battery, the data indicating a relationship between the output voltage and a ratio of remaining power of the battery to a capacity of the battery in a case where the battery is charged or discharged with each of the plurality of current values; and a first calculation unit configured to calculate a charging/discharging current of the battery based on the data and the output voltage.
    • 剩余电池电力计算电路包括:检测单元,被配置为检测电池的输出电压; 数据存储单元,被配置为以与电池的充电或放电的多个当前值中的每一个相关联的方式存储数据,所述数据指示输出电压与电池的剩余电量的比率与电池的容量之间的关系 在电池以多个电流值中的每一个充电或放电的情况下的电池; 以及第一计算单元,被配置为基于所述数据和所述输出电压来计算所述电池的充电/放电电流。
    • 48. 发明授权
    • Capacitance discrimination circuit and touch switch equipped with the same
    • 电容鉴别电路和触摸开关配备相同
    • US08552747B2
    • 2013-10-08
    • US12976182
    • 2010-12-22
    • Susumu Yamada
    • Susumu Yamada
    • G01R27/26
    • H03K17/9622H03K2217/960705H03K2217/960715H03K2217/960745
    • In some embodiments, a capacitance discrimination circuit includes first and second capacitors, a comparator configured to compare a first voltage of the first capacitor and a second voltage of the second capacitor, a counter circuit configured to perform a count operation based on a comparison result of the comparator, a charge circuit configured to charge the first and second capacitors, and a control circuit configured to control the charge circuit so as to charge either the first capacitor or the second capacitor based on the comparison result of the comparator. The capacitance discrimination of the first and second capacitors is performed based on count values of the counter circuit. The capacitance discrimination circuit preferably includes a discharge circuit to discharge electric charges stored in the first and second capacitors in accordance with a discharge signal from the control circuit.
    • 在一些实施例中,电容鉴别电路包括第一和第二电容器,被配置为比较第一电容器的第一电压和第二电容器的第二电压的比较器,配置成基于比较结果执行计数操作的计数器电路 比较器,被配置为对第一和第二电容器充电的充电电路,以及配置成基于比较器的比较结果来控制充电电路以对第一电容器或第二电容器充电的控制电路。 基于计数器电路的计数值来执行第一和第二电容器的电容鉴别。 电容鉴别电路优选地包括放电电路,用于根据来自控制电路的放电信号放电存储在第一和第二电容器中的电荷。
    • 49. 发明授权
    • Master communication circuit, slave communication circuit, and data communicating method
    • 主通信电路,从通信电路和数据通信方式
    • US08171193B2
    • 2012-05-01
    • US11692062
    • 2007-03-27
    • Susumu Yamada
    • Susumu Yamada
    • G06F13/42
    • G06F13/4286
    • A master communication circuit communicatively connected to a slave communication circuit, comprises a timer circuit that can detect a first time; a first output circuit that outputs a first output signal of one logical level for starting a detecting operation of the first time in the timer circuit, when a value transmitted to the slave communication circuit is one logical level, and for starting a detecting operation of a second time longer than the first time in the slave communication circuit; and a second output circuit that outputs a second output signal of the other logical level when the timer circuit detects the first time, wherein if a value of one logical level is transmitted to the slave communication circuit, the value of one logical level is transmitted to the slave communication circuit by not detecting the second time with the slave communication circuit, detecting the first time with the timer circuit, and outputting the second output signal with the second output circuit, and wherein if a value of the other logical level is transmitted to the slave communication circuit, the value of the other logical level is transmitted to the slave communication circuit by not detecting the first time with the timer circuit and detecting the second time with the slave communication circuit.
    • 通信地连接到从通信电路的主通信电路包括可以首次检测的定时器电路; 第一输出电路,当发送到从属通信电路的值是一个逻辑电平时,输出用于在定时器电路中开始第一次的检测操作的一个逻辑电平的第一输出信号,并且用于开始检测操作 第二次比从属通信电路第一次长; 以及第二输出电路,当定时器电路第一次检测时,输出另一逻辑电平的第二输出信号,其中如果将一个逻辑电平的值发送到从通信电路,则将一个逻辑电平的值发送到 从通信电路,不通过从通信电路检测第二次,用定时器电路检测第一次,并且用第二输出电路输出第二输出信号,并且其中如果将另一逻辑电平的值发送到 从通信电路,另一逻辑电平的值通过不用定时器电路第一次检测并且用从通信电路检测第二次来发送到从通信电路。
    • 50. 发明申请
    • CAPACITANCE DISCRIMINATION CIRCUIT AND TOUCH SWITCH EQUIPPED WITH THE SAME
    • 电容分辨电路和触摸开关
    • US20110148439A1
    • 2011-06-23
    • US12976182
    • 2010-12-22
    • Susumu Yamada
    • Susumu Yamada
    • G01R27/26
    • H03K17/9622H03K2217/960705H03K2217/960715H03K2217/960745
    • In some embodiments, a capacitance discrimination circuit includes first and second capacitors, a comparator configured to compare a first voltage of the first capacitor and a second voltage of the second capacitor, a counter circuit configured to perform a count operation based on a comparison result of the comparator, a charge circuit configured to charge the first and second capacitors, and a control circuit configured to control the charge circuit so as to charge either the first capacitor or the second capacitor based on the comparison result of the comparator. The capacitance discrimination of the first and second capacitors is performed based on count values of the counter circuit. The capacitance discrimination circuit preferably includes a discharge circuit to discharge electric charges stored in the first and second capacitors in accordance with a discharge signal from the control circuit.
    • 在一些实施例中,电容鉴别电路包括第一和第二电容器,被配置为比较第一电容器的第一电压和第二电容器的第二电压的比较器,配置成基于比较结果执行计数操作的计数器电路 比较器,被配置为对第一和第二电容器充电的充电电路,以及配置成基于比较器的比较结果来控制充电电路以对第一电容器或第二电容器充电的控制电路。 基于计数器电路的计数值来执行第一和第二电容器的电容鉴别。 电容鉴别电路优选地包括放电电路,用于根据来自控制电路的放电信号放电存储在第一和第二电容器中的电荷。