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    • 33. 发明授权
    • Pulse voltage doubler circuit
    • 脉冲倍压电路
    • US5640111A
    • 1997-06-17
    • US610106
    • 1996-02-29
    • Kazuo Hasegawa
    • Kazuo Hasegawa
    • H03K5/02H02M3/07H03K17/06H03B19/14
    • H02M3/07H03K17/063
    • A pulse voltage doubler circuit for doubling the voltage of output pulses from a microcomputer or the like operating on a low voltage, the doubled output being used on drive a load connected to the microcomputer. The pulse voltage doubler circuit comprises: an inverter circuit having an input terminal, an output terminal, and a first and a second power terminal; a capacitor interconnecting the first and second power terminals of the inverter circuit; and a diode connected interposingly between the first power terminal and a power source. The input terminal of the inverter circuit is connected to the power source, the second power terminal is supplied with an input signal from the microcomputer, and the output terminal is connected to the load which is illustratively an MOSFET gate.
    • 一种脉冲倍增电路,用于使来自微电脑等的输出脉冲的电压加倍,其操作在低电压,该双倍输出用于驱动连接到微型计算机的负载。 脉冲倍压器电路包括:具有输入端子,输出端子以及第一和第二电力端子的逆变器电路; 电容器,其互连所述逆变器电路的所述第一和第二电源端子; 以及连接在第一电源端子和电源之间的二极管。 逆变器电路的输入端子连接到电源,第二电源端子被提供有来自微型计算机的输入信号,输出端子连接到例如MOSFET栅极的负载上。
    • 34. 发明授权
    • Circuit for adjusting sensitivity of optical character reader and method
thereof
    • 用于调整光学字符读取器的灵敏度的电路及其方法
    • US5382782A
    • 1995-01-17
    • US157757
    • 1993-11-24
    • Kazuo HasegawaJunichi Ouchi
    • Kazuo HasegawaJunichi Ouchi
    • G06K7/10
    • G06K7/10851G06K2207/1018
    • A circuit for adjusting the sensitivity of an optical character reader in which light is applied to an information-recorded material by an LED array and the information is read by a line sensor. The optical character reader is switched to a sensitivity adjusting mode. It reads a reference material having uniform reflectivity on the surface. The read signal is A/D converted and the microcomputer 10 detects a discrepancy between the amounts of light depending on the different portions of the line sensor. Based upon the detection, the microcomputer sets the applying time of driving currents to the respective LEDs so that the light is uniformly applied to the reference material. The set value is stored in a memory. Thereafter, since the amounts of light from the LEDs of the LED array are adjusted according to the set value, the amount of the reflected light to the line sensor 5 can be uniform. Thus, a series analog voltage accurately responding to the darkness and brightness of the information can be obtained.
    • 用于调整光学字符读取器的灵敏度的电路,其中光通过LED阵列施加到信息记录材料,并且信息由线传感器读取。 光学字符读取器切换到灵敏度调整模式。 它读取在表面上具有均匀反射率的参考材料。 读取信号进行A / D转换,并且微计算机10根据线传感器的不同部分检测光量之间的差异。 基于检测,微型计算机将驱动电流的施加时间设定到各个LED,使得光均匀地施加到参考材料。 设置值存储在内存中。 此后,由于根据设定值调整来自LED阵列的LED的光量,所以能够使与线传感器5的反射光量一致。 因此,可以获得准确地响应于信息的暗度和亮度的串联模拟电压。
    • 35. 发明授权
    • Automatically adjusting drive circuit for light emitting diode
    • 自动调节发光二极管的驱动电路
    • US5345167A
    • 1994-09-06
    • US56109
    • 1993-05-03
    • Kazuo HasegawaShin Sugifune
    • Kazuo HasegawaShin Sugifune
    • H03K17/78G05F1/56G05B24/02
    • G05F1/56Y10S323/902
    • A light emitting diode driving circuit for supplying a driving pulse to a light emitting diode to thereby cause the light emitting diode to intermittently emit light is disclosed which comprises a clamping circuit, a photodiode disposed in the vicinity of the light emitting diode for detecting the optical output power of the light emitting diode, an AC amplifier having its DC operating point stabilized by means of a DC feedback circuit for AC amplifying the detected output from the photodiode, a shaping circuit for shaping the output amplified signal from the AC amplifier, and a comparison circuit for comparing for voltage the output shaped signal from the shaping circuit and a reference voltage, in which the clamping voltage of the clamping circuit is controlled by the output of the comparison circuit and, thereby, the optical output power of the light emitting diode is maintained constant.
    • 公开了一种用于向发光二极管提供驱动脉冲从而使发光二极管间歇地发光的发光二极管驱动电路,其包括钳位电路,设置在发光二极管附近的光电二极管,用于检测光 发光二极管的输出功率,具有通过DC反馈电路稳定的DC工作点的AC放大器,用于对来自光电二极管的检测输出进行AC放大;整流电路,用于对来自AC放大器的输出放大信号进行整形;以及 用于比较来自整形电路的输出整形信号的电压与参考电压的比较电路,其中钳位电路的钳位电压由比较电路的输出控制,从而使发光二极管的光输出功率 保持不变。
    • 39. 发明授权
    • Optical coordinate input device having light adjusting means located in
front of each light receiving means
    • 具有位于每个光接收装置前方的光调节装置的光学坐标输入装置
    • US4771170A
    • 1988-09-13
    • US86955
    • 1987-08-19
    • Kazuo Hasegawa
    • Kazuo Hasegawa
    • G06F3/033G06F3/042G01V9/04
    • G06F3/0421
    • An optical coordinate input device wherein there is no possibility of operation in error or of destruction of a light receiving element and a correct coordinate signal can be produced even if external light of a high intensity acts upon the light receiving element. The device comprises light amount adjusting means of the transmissive type located in front of light receiving elements, and controlling means for controlling the amount of light to be passed through the light amount adjusting means in response to an amount of light incident to the light receiving elements. Thus, if there is the possibility that an output value of the light receiving elements may reach a saturation condition due to external light of a high intensity, the light transmittivity of the light amount adjusting means is lowered to decrease the amount of external light to be received the light receiving elements.
    • 即使高强度的外部光作用在光接收元件上,也可以产生光学坐标输入装置,其中不存在错误操作的可能性或者光接收元件的破坏和正确的坐标信号。 该装置包括位于光接收元件前面的透射型光量调节装置,以及控制装置,用于根据入射到光接收元件的光量来控制通过光量调节装置的光量 。 因此,如果由于高强度的外部光而导致光接收元件的输出值可能达到饱和状态,则光量调节装置的光透射率降低,从而将外部光量减少为 接收光接收元件。
    • 40. 发明授权
    • Remote control circuit
    • 遥控电路
    • US4764981A
    • 1988-08-16
    • US868792
    • 1986-05-29
    • Yoshinori MiyaharaKazuo Hasegawa
    • Yoshinori MiyaharaKazuo Hasegawa
    • H04Q9/00G08C25/02H04B9/00
    • G08C25/02
    • A remote control device comprises a control input unit, a transmission unit, a receiving unit, a reply unit and a command control circuit. The control input unit outputs a control signal. The transmission unit stores the control signal in a first memory circuit and transmits a light signal based on the control signal. A main device controlled by the remote control unit receives in a first receiver circuit and stores in a second memory circuit the signal from the transmission unit. The main device has a reply signal unit for transmitting a return signal based on the signal from the receiving unit to a second receiver circuit of the remote control device. The command control circuit compares the signal received by the second receiver circuit and the signal stored in the first memory circuit. When these compared signals are in agreement, the command control circuit outputs to the transmission unit a signal based on the signal stored in the second memory circuit thereby to cause the operating device to operate. When they are not in agreement, then the circuit outputs a signal to a display unit for an error display.
    • 遥控装置包括控制输入单元,发送单元,接收单元,应答单元和命令控制电路。 控制输入​​单元输出控制信号。 发送单元将控制信号存储在第一存储器电路中,并基于控制信号发送光信号。 由遥控单元控制的主设备在第一接收机电路中接收并存储来自传输单元的信号在第二存储器电路中。 主设备具有用于基于来自接收单元的信号向远程控制设备的第二接收机电路发送返回信号的应答信号单元。 命令控制电路将由第二接收机电路接收的信号和存储在第一存储器电路中的信号进行比较。 当这些比较信号一致时,命令控制电路基于存储在第二存储器电路中的信号向传输单元输出信号,从而使操作装置工作。 当它们不一致时,电路将信号输出到显示单元以进行错误显示。