会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Adaptive current control system for a stepper motor
    • 步进电机自适应电流控制系统
    • US07345447B2
    • 2008-03-18
    • US11416042
    • 2006-05-02
    • George J. DoutneyJames A. FairweatherGary S. JacobsonMichael J. Lorello
    • George J. DoutneyJames A. FairweatherGary S. JacobsonMichael J. Lorello
    • G05B11/01
    • H02P8/16
    • A method and a system are disclosed for adaptively controlling a stepper motor to produce a required torque output based on selection information provided by a sensor or a user/user interface which, in combination with a selector, selects a torque-related value. The selection information provided to the selector for selecting the stepper motor torque-related value may be, for example, the size or thickness of material being handled or the number of accumulated sheets for processing. The torque-related value is predetermined through experimentation and loaded into a lookup table stored in the memory of a motion control system board. The selected torque-related value is provided to a stepper motor driver which supplies the appropriate drive signal(s) to the stepper motor.
    • 公开了一种方法和系统,用于根据由选择器选择转矩相关值的传感器或用户/用户接口提供的选择信息来自适应地控制步进电机以产生所需的转矩输出。 提供给用于选择步进电动机转矩相关值的选择器的选择信息可以是例如正在处理的材料的尺寸或厚度或用于处理的累积纸张的数量。 扭矩相关值通过实验预先确定并加载到存储在运动控制系统板的存储器中的查找表中。 所选择的转矩相关值被提供给步进电动机驱动器,该步进电动机驱动器将适当的驱动信号提供给步进电动机。
    • 3. 发明授权
    • Circuit and method for controlling current supplied to an optical sensor
    • 用于控制提供给光学传感器的电流的电路和方法
    • US08592742B2
    • 2013-11-26
    • US12971053
    • 2010-12-17
    • Michael J. LorelloGary S. JacobsonGeorge J. Doutney
    • Michael J. LorelloGary S. JacobsonGeorge J. Doutney
    • H01J40/14H03F3/08
    • G01J1/32G01J1/0228G01J1/08
    • A system and method for adjusting the LED current of an optical sensor that does not decrease the effectiveness of the optical sensor or the length of its operating life, or significantly increase the cost due to hardware requirements. The LED current of an optical sensor is adjusted using a high frequency pulse-width modulated signal generated from a microcontroller. Based on feedback provided by the photo-detector, the duty cycle of the signal can be adjusted by the microcontroller. The signal passes through a low pass filter which averages the modulated signal into a DC voltage, which is then used to control a current amplifier circuit that provides current to the LED of the optical sensor. This adjustability enables the system to compensate for variations in sensor LED's and the LED brightness reduction to due aging and/or build-up of contaminants on the photo-detector and/or LED.
    • 用于调整不会降低光学传感器的有效性或其使用寿命长度的光学传感器的LED电流的系统和方法,或由于硬件要求而显着增加成本。 使用从微控制器产生的高频脉冲宽度调制信号调整光学传感器的LED电流。 基于光电检测器提供的反馈信号,可以通过微控制器调整信号的占空比。 该信号通过低通滤波器,其将调制信号平均为直流电压,然后将其用于控制​​向光学传感器的LED提供电流的电流放大器电路。 这种可调性使得系统能够补偿传感器LED的变化以及LED亮度降低到光电检测器和/或LED上的污染物的适当老化和/或累积。
    • 4. 发明申请
    • MAILING MACHINE HAVING OPTICAL SENSORS WITH IMPROVED IMMUNITY TO AMBIENT
    • 具有改进的免疫力的光学传感器的电子机器
    • US20120241285A1
    • 2012-09-27
    • US13052162
    • 2011-03-21
    • MICHAEL J. LORELLOGary S. JacobsonGeorge J. Doutney
    • MICHAEL J. LORELLOGary S. JacobsonGeorge J. Doutney
    • B65G43/00G01J1/44
    • G01J1/46G01J1/18G01J1/4204
    • Circuitry to control reflective optical sensors is provided that reduces false detections due to ambient light without compromising the performance of the optical sensors to detect dark materials. A reflective optical sensor includes an emitter LED and photo-detector arranged to receive light from the LED that is reflected by an object being detected. A first input of a comparator is coupled to the output of the photo-detector. A second input of the comparator is coupled to the output of the photo-detector through a filtering circuit. The filtering circuit operates to filter the detector's output and adaptively adjust the trigger threshold of the comparator, thereby enabling the photo-detector to be sensitive enough to detect dark mail pieces, i.e., those mail pieces that are minimally reflective, while being immune to repeated false triggers due to excessive ambient light.
    • 提供了控制反射光学传感器的电路,其减少了由环境光引起的错误检测,而不会影响光学传感器检测暗材料的性能。 反射型光学传感器包括发射器LED和光电检测器,其布置成接收来自被检测物体反射的LED的光。 比较器的第一输入耦合到光检测器的输出端。 比较器的第二输入端通过滤波电路耦合到光电检测器的输出端。 滤波电路用于对检测器的输出进行滤波并自适应地调整比较器的触发阈值,从而使得光检测器足够灵敏以检测黑色邮件,即那些最小反射的邮件,同时不受重复的影响 由于过度的环境光引起的假触发。
    • 6. 发明授权
    • Safety interlock system and method for disrupting stepper motor control signals
    • 安全联锁系统和扰乱步进电机控制信号的方法
    • US07528567B2
    • 2009-05-05
    • US11415893
    • 2006-05-02
    • George J. DoutneyMichael J. Lorello
    • George J. DoutneyMichael J. Lorello
    • H02P8/00
    • H02P8/24
    • A method and a system are disclosed for preventing stepper motor control signals from being applied to a stepper motor drive circuit in order to stop a stepper motor when an interlock situation is present. A sequence of one or more control signals is generated by a motion control system and passed to one or more interlock logic gates connected in series. The interlock logic gates have an enable signal input which allows the control signals to pass through to the stepper motor drive circuit if the enable input signal is set to a logic level of “1”. On the other hand, the interlock logic gates will prevent the control signals from reaching the stepper motor drive circuit if the enable input signal is set to a logic level of “0”. The logic level of the enable input signal may be connected to a switch, relay, or an integrated circuit responsive to an interlock situation such as the opening of an access door.
    • 公开了一种方法和系统,用于防止步进电机控制信号被施加到步进电机驱动电路,以便当存在联锁情况时停止步进电机。 一个或多个控制信号的序列由运动控制系统产生并传递给串联连接的一个或多个互锁逻辑门。 互锁逻辑门具有使能信号输入,如果使能输入信号被设置为逻辑电平“1”,则允许控制信号通过步进电机驱动电路。 另一方面,如果使能输入信号被设置为逻辑电平“0”,则互锁逻辑门将防止控制信号到达步进电机驱动电路。 使能输入信号的逻辑电平可以响应于例如开门的互锁状况连接到开关,继电器或集成电路。
    • 10. 发明授权
    • Mailing machine having optical sensors with improved immunity to ambient
    • 具有光学传感器的邮寄机具有改善的对环境的免疫力
    • US08464855B2
    • 2013-06-18
    • US13052162
    • 2011-03-21
    • Michael J. LorelloGary S. JacobsonGeorge J. Doutney
    • Michael J. LorelloGary S. JacobsonGeorge J. Doutney
    • H01J40/14
    • G01J1/46G01J1/18G01J1/4204
    • Circuitry to control reflective optical sensors is provided that reduces false detections due to ambient light without compromising the performance of the optical sensors to detect dark materials. A reflective optical sensor includes an emitter LED and photo-detector arranged to receive light from the LED that is reflected by an object being detected. A first input of a comparator is coupled to the output of the photo-detector. A second input of the comparator is coupled to the output of the photo-detector through a filtering circuit. The filtering circuit operates to filter the detector's output and adaptively adjust the trigger threshold of the comparator, thereby enabling the photo-detector to be sensitive enough to detect dark mail pieces, i.e., those mail pieces that are minimally reflective, while being immune to repeated false triggers due to excessive ambient light.
    • 提供了控制反射光学传感器的电路,其减少了由环境光引起的错误检测,而不会影响光学传感器检测暗材料的性能。 反射型光学传感器包括发射器LED和光电检测器,其布置成接收来自被检测物体反射的LED的光。 比较器的第一输入耦合到光检测器的输出端。 比较器的第二输入端通过滤波电路耦合到光电检测器的输出端。 滤波电路用于对检测器的输出进行滤波并自适应地调整比较器的触发阈值,从而使得光检测器足够灵敏以检测黑色邮件,即那些最小反射的邮件,同时不受重复的影响 由于过度的环境光引起的假触发。