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    • 61. 发明授权
    • Image sensor driving circuit
    • 图像传感器驱动电路
    • US4788595A
    • 1988-11-29
    • US120541
    • 1987-11-13
    • Masayuki TamadaJunichi Takahashi
    • Masayuki TamadaJunichi Takahashi
    • H04N1/028H04N1/19
    • H04N5/335H04N5/361
    • An image sensor driving circuit for driving an image sensor by applying a voltage thereto comprises a voltage supplying circuit for supplying a positive or negative polarity voltage to the image sensor responsive to a control signal, a converting circuit for converting an output photocurrent of the image sensor into a detection voltage, an inverting circuit for inverting the detection voltage responsive to the control signal, and a control circuit for generating the control signal. The control signal has a predetermined period so that the voltage supplying circuit alternately supplies the positive and negative polarity voltages with the predetermined period and the inverting circuit inverts the detection voltage only during one of first and second halves of each period of the control signal.
    • 一种用于通过施加电压来驱动图像传感器的图像传感器驱动电路包括:用于根据控制信号向图像传感器提供正极性或负极性电压的电压提供电路,用于转换图像传感器的输出光电流的转换电路 成为检测电压,用于根据控制信号反转检测电压的反相电路,以及用于产生控制信号的控制电路。 控制信号具有预定周期,使得电压供给电路在预定周期内交替地提供正极性和负极性电压,并且反相电路仅在控制信号的每个周期的第一和第二半的一个期间反转检测电压。
    • 62. 发明授权
    • Image sensor driving circuit
    • US4749852A
    • 1988-06-07
    • US86573
    • 1987-08-18
    • Junichi Takahashi
    • Junichi Takahashi
    • H03K5/02H04N5/378H03F1/36
    • H03K5/02H04N5/357
    • An image sensor driving circuit of the matrix driving type includes a plurality of sensor elements for converting light image information into an electrical image signal, an operational amplifier circuit section for amplifying the electrical image signal and a logic circuit section for controlling the operation of the amplifier circuit section. In one embodiment, the amplifier circuit section includes a single stage operational amplifier having a pair of series-connected feed-back resistors and a trimmer capacitor connected between the interconnection between the feed-back resistors and ground, which allows to eliminate the differential signal component arising from the parasitic capacitance of the sensor element. In another embodiment, the operational amplifier is provided with an input offset compensation circuit which supplies a compensation voltage opposite in polarity to the input offset voltage of the operational amplifier, thereby preventing crosstalk from occurring. In a further embodiment, the image sensor includes an analog circuit section having an operational amplifier circuit and a logic circuit section which are mounted on separate substrates.
    • 64. 发明授权
    • Anti-skid control device
    • 防滑控制装置
    • US4321677A
    • 1982-03-23
    • US118909
    • 1980-02-06
    • Junichi TakahashiTakanori Shibata
    • Junichi TakahashiTakanori Shibata
    • B60T8/17B60T8/172B60T8/1763B60T8/66G06F15/20B60T8/10
    • B60T8/17636Y10S188/01
    • The control circuit comprises a memory circuit and a calculation circuit. The control circuit derives wheel speed from a detector, and delivers a brake release signal and a braking signal to a hydraulic brake system of a vehicle after the occurrence of a skid. A memory circuit beforehand memorizes optimum control patterns shown by the function of time and vehicle velocity corresponding to slip rate between wheel and road surfaces. A calculation circuit determines a slip rate by referring to wheel speed, and selects an optimum control pattern corresponding to the calculated slip rate from the memory circuit. Then, the calculation circuit controls the hydraulic brake system in accordance with the selected optimum pattern. When the slip rate becomes 50% after the panic braking, the calculation circuit releases the oil pressure of the hydraulic brake system and, when the slip rate becomes 20% after the panic braking, the calculation circuit outputs the braking signal to the hyraulic brake system.
    • 控制电路包括存储器电路和计算电路。 控制电路从检测器获得车轮速度,并且在发生滑行之后将制动释放信号和制动信号传送到车辆的液压制动系统。 存储器电路预先存储与车轮和路面之间的滑移率相对应的时间和车速函数所示的最佳控制模式。 计算电路通过参照车轮速度来确定滑移率,并从存储器电路中选择与计算出的滑移率对应的最佳控制模式。 然后,计算电路根据所选择的最佳模式来控制液压制动系统。 当紧急制动之后的滑差率变为50%时,计算电路释放液压制动系统的油压,并且当紧急制动之后的滑移率变为20%时,计算电路将制动信号输出到液压制动系统 。