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    Apparatus and method for closed-loop, thermal control of printing head
    4.
    发明授权
    Apparatus and method for closed-loop, thermal control of printing head 失效
    打印头闭环，热控制的装置和方法

    公开(公告)号：US5132709A

    公开(公告)日：1992-07-21

    申请号：US749923

    申请日：1991-08-26

    申请人： David A. West

    发明人： David A. West

    IPC分类号： B41J2/355 ,  B41J2/365

    CPC分类号： B41J2/365 ,  B41J2/355

    摘要： The heating elements of a thermal printing head are respectively driven through drive transistors under the control of strobe pulses and are respectively provided with temperature control circuits, each such circuit including a sense resistor connected in series between the heating element and the drive transistor for sensing the current flow therethrough. Each control circuit has a flip-flop which is clocked by an associated strobe signal to turn on the corresponding drive transistor. The voltage drop across the sense resistor of each control circuit is amplified and compared to a reference level corresponding to a predetermined temperature, and when it exceeds the reference it resets the associated flip-flop to turn off the corresponding drive transistor.

    摘要翻译： 热敏打印头的加热元件分别在选通脉冲的控制下通过驱动晶体管驱动，并且分别设置有温度控制电路，每个这样的电路包括串联连接在加热元件和驱动晶体管之间的感测电阻器，用于感测 电流流经其中。 每个控制电路具有触发器，触发器由相关的选通信号计时，以导通相应的驱动晶体管。 每个控制电路的检测电阻上的电压降被放大并与对应于预定温度的参考电平进行比较，并且当它超过参考时，它复位相关的触发器以关断对应的驱动晶体管。

    Apparatus for measuring changes in radial and/or axial position of a rotor in a drive system including an EMF producing stationary conductor
    5.
    发明授权
    Apparatus for measuring changes in radial and/or axial position of a rotor in a drive system including an EMF producing stationary conductor 失效
    用于测量驱动系统中转子的径向和/或轴向位置变化的装置，包括电动势生产静态导体

    公开(公告)号：US5248940A

    公开(公告)日：1993-09-28

    申请号：US856892

    申请日：1992-05-13

    申请人： Brian M. Patience ,  David A. West ,  Palmer H. Beam

    发明人： Brian M. Patience ,  David A. West ,  Palmer H. Beam

    IPC分类号： F04D13/02 ,  F04D15/02 ,  G01D5/14 ,  H02K5/16 ,  H02K11/00 ,  H02K49/10

    CPC分类号： F16C17/24 ,  F04D13/024 ,  F04D15/0088 ,  F04D15/0272 ,  G01D5/14 ,  H02K49/106 ,  H02K11/00 ,  H02K5/16

    摘要： An apparatus for measuring change of position of a rotor in a drive system having a drive rotor and a driven rotor generally concentrically mounted with respect to the drive rotor, the drive and driven rotors being magnetically coupled together. The apparatus includes a conduction device stationarily mounted between the rotors and a device for measuring the EMF (Electro Motive Force) produced in the conduction device as the rotors rotate. The apparatus also includes a device for determining, from the measurement, the relative position of the two rotors and/or the position of one of the rotors.

    摘要翻译： PCT No.PCT / GB91 / 01593 Sec。 371日期：1992年5月13日 102（e）日期1992年5月13日PCT 1991年9月18日PCT公布。 出版物WO92 / 05402 日本1992年4月2日。一种用于测量具有驱动转子和从动转子的驱动系统中转子的位置变化的装置，所述驱动转子和从动转子大体上相对于驱动转子同心安装，所述驱动转子和从动转子磁耦合在一起。 该装置包括固定地安装在转子之间的传导装置和用于测量当转子旋转时在导电装置中产生的EMF（电动力）的装置。 该装置还包括用于从测量中确定两个转子的相对位置和/或其中一个转子的位置的装置。

    Modular data sensing and logging system
    6.
    发明授权
    Modular data sensing and logging system 有权
    模块化数据检测和记录系统

    公开(公告)号：US06532434B1

    公开(公告)日：2003-03-11

    申请号：US09585863

    申请日：2000-06-01

    申请人： David A. West

    发明人： David A. West

    IPC分类号： G06F1500

    CPC分类号： G01D9/005

    摘要： An apparatus and method for the periodic acquisition of data through the use of sensors and/or electronic interfaces. The apparatus is modular, having a control module and one or more A acquisition modules interconnected with a module bus. The control module provides timing and control information to the acquisition modules, as well as an interface for communication to a host computer. Each acquisition module contains circuitry to make measurements of one or more physical property and convert the measurements into digital values. Temperature, altitude, airspeed, engine speed, gravitational force, pulse width, and voltage are examples of physical values that may be measured. Each acquisition module also contains electronic memory in which the digital values are stored. In operation the control module keeps track of elapsed time and periodically signals the acquisition modules to make readings and store values. When data logging is complete, the system is attached to the host computer and the data stored in each acquisition module is transferred for analysis. Calibration values for correction of sensor gain, offset, linearity, or other factors may be stored in a separate parameter area within each acquisition module's memory. These values can then be used by the host computer to adjust and

    摘要翻译： 一种用于通过使用传感器和/或电子接口来定期地获取数据的装置和方法。 该装置是模块化的，具有控制模块和与模块总线互连的一个或多个A采集模块。 控制模块向采集模块提供定时和控制信息，以及用于与主机通信的接口。 每个采集模块包含用于测量一个或多个物理属性并将测量值转换为数字值的电路。 温度，高度，空速，发动机速度，重力，脉冲宽度和电压是可以测量的物理值的示例。 每个采集模块还包含存储数字值的电子存储器。 在操作中，控制模块跟踪经过的时间并周期性地向采集模块发出信号以进行读数和存储值。 数据记录完成后，将系统连接到主计算机，并将存储在每个采集模块中的数据传输进行分析。 用于校正传感器增益，偏移，线性度或其他因素的校正值可存储在每个采集模块存储器中的单独参数区域中。 这些值然后可以被主机用来调整和

    Media sensors for a printer
    7.
    发明授权
    Media sensors for a printer 有权
    用于打印机的介质传感器

    公开(公告)号：US06201255B1

    公开(公告)日：2001-03-13

    申请号：US09183817

    申请日：1998-10-30

    申请人： Karl Torchalski ,  David A. West

    发明人： Karl Torchalski ,  David A. West

    IPC分类号： B41J2918

    CPC分类号： B41J15/04 ,  B41J3/4075 ,  B41J11/0095 ,  B41J15/02 ,  B65C9/0006 ,  B65C11/0289 ,  B65H18/04 ,  B65H37/002 ,  B65H75/242 ,  B65H2301/4132 ,  B65H2405/45 ,  B65H2511/51 ,  B65H2511/515 ,  B65H2513/40 ,  B65H2513/512 ,  B65H2553/414 ,  B65H2701/194 ,  B65H2220/01 ,  B65H2220/02

    摘要： The present invention provides media sensors for sensing the position of a media in a printer, such as a thermal demand printer. A repositionable media sensor for monitoring the location of a web of label media which utilizes a visible light source projected onto the label media to accurately indicate the position of the media sensor to the operator relative to the label media and facilitate any required adjustment thereof. A printed label sensor is provided for use with a thermal demand printer and includes a light emitter and light detector pair wherein a single light pipe for receiving a sensing beam from the emitter and reflecting the sensing beam at a predetermined angle towards the detector is provided. Preferably, the light pipe is mounted in a peel bar and no electronics are required outside the electronic housing of the printer.

    摘要翻译： 本发明提供用于感测诸如热需求打印机的打印机中的介质的位置的介质传感器。 一种可重新定位的介质传感器，用于监测标签介质的位置，其利用投影到标签介质上的可见光源来精确地指示介质传感器相对于标签介质向操作者的位置，并且便于其任何必要的调整。 提供了一种用于热需求打印机的印刷标签传感器，并且包括发光器和光检测器对，其中提供用于从发射器接收感测光束并将检测光束以预定角度反射到检测器的单个光管。 优选地，光管安装在剥离棒中，并且在打印机的电子外壳之外不需要电子设备。

    Thermal demand printer
    8.
    发明授权
    Thermal demand printer 失效
    热需求打印机

    公开(公告)号：US5874980A

    公开(公告)日：1999-02-23

    申请号：US791448

    申请日：1997-01-27

    申请人： David A. West

    发明人： David A. West

    IPC分类号： B41J2/325 ,  B41J2/32 ,  B41J2/35 ,  B41J2/355 ,  B41J2/36 ,  B41J2/365 ,  B41J3/36 ,  B41J5/30 ,  B41J15/16 ,  B41J17/02 ,  B41J17/24 ,  B41J17/32 ,  B41J17/42 ,  B41J25/304 ,  B41J25/316 ,  B41J29/00 ,  B41J29/02 ,  B41J29/13 ,  B41J29/38 ,  B41J29/46 ,  B41J33/14 ,  B41J33/16 ,  B41J33/22 ,  B41J33/34 ,  B65C11/02 ,  B65H18/00 ,  B65H19/12 ,  B65H75/22 ,  G07B1/00 ,  B41J2/38

    CPC分类号： B41J2/325 ,  B41J17/02 ,  B41J17/24 ,  B41J17/42 ,  B41J2/355 ,  B41J2/365 ,  B41J25/304 ,  B41J25/316 ,  B41J29/02 ,  B41J29/38 ,  B65C11/0289 ,  B65C2210/0027 ,  B65C2210/0029 ,  Y10T16/525 ,  Y10T16/5257

    摘要： A thermal demand printer for printing on media is a novel system which includes a case structure including a hinged cover panel, easily removable guide structures and media hanger, and a single central support wall to which the various components are attached. The printer includes a power supply circuit for receiving power from an external source and conditioning it for operation of the printer. An input device is provided for receiving command signals related to the operation of the printer. A control circuit for processing the command signals and generating corresponding control signals for controlling the operation of the printer and a printhead assembly for processing the control signals and generating corresponding control signals for controlling the operation of the printer are mounted in the case structure and coupled to the input device and the power supply circuit. The printhead assembly includes a printhead support structure which controls the printhead. A ribbon take-up spindle, method of operating the take-up spindle using a PMDC motor, and a spring wrap clutch device help to control the tension in the transfer ribbon used in the printer. The printer also includes a medial sensor and a method of sensing media by way of detecting the opacity of the media passing through the sensor. The printer includes a method of printhead control using double data loading and a method of accelerating and decelerating media relative to the printhead using pulse width modulation.

    摘要翻译： 用于在介质上打印的热需求打印机是一种新颖的系统，其包括壳体结构，其包括铰接盖板，易于拆卸的导向结构和介质悬挂器，以及单个中心支撑壁，各个部件附接到该中心支撑壁。 打印机包括用于从外部源接收电力并对其进行调理以用于打印机的操作的电源电路。 提供输入装置用于接收与打印机的操作有关的命令信号。 用于处理命令信号并产生用于控制打印机的操作的相应控制信号的控制电路和用于处理控制信号并产生用于控制打印机操作的相应控制信号的打印头组件安装在壳体结构中并耦合到 输入设备和电源电路。 打印头组件包括一个控制打印头的打印头支撑结构。 带状卷取轴，使用PMDC电机操作卷取轴的方法以及弹簧卷绕离合器装置有助于控制打印机中使用的转印带中的张力。 打印机还包括内侧传感器和通过检测通过传感器的介质的不透明度来感测介质的方法。 打印机包括使用双重数据加载的打印头控制方法和使用脉冲宽度调制相对于打印头加速和减速介质的方法。

    Acoustic thermometer
    9.
    发明授权
    Acoustic thermometer 失效
    声温计

    公开(公告)号：US5624188A

    公开(公告)日：1997-04-29

    申请号：US326542

    申请日：1994-10-20

    申请人： David A. West

    发明人： David A. West

    IPC分类号： G01K11/24 ,  G01K11/22

    CPC分类号： G01K11/24

    摘要： A thermometer using the temperature dependance of the speed of sound, measures the average temperature along a path traversing an open environment containing a medium. A transmitting transducer, coupled to a signal generator and placed at a first point in the medium, produces a burst of sound of predetermined frequency and duration. The sound burst travels through the medium to a second point, located a predetermined distance from the first. At the second point, a passive sound reflector, or an active apparatus, produces a returning sound burst. A receiving transducer, positioned close to the transmitting transducer, receives the returned sound. A detection circuit, coupled to the receiving transducer, indicates the presence of the returned sound burst. A timer, with connections to the signal generator and the detection circuit, measures the elapsed time for the round trip of the sound. The resulting time measurement is an indicator of the average temperature along the path between the first and second points. This time measurement is output for use by an electronic system, or processed to represent temperature directly.

    摘要翻译： 使用温度与声速相关的温度计，测量穿过包含介质的开放环境的路径的平均温度。 耦合到信号发生器并放置在介质中的第一点处的发射换能器产生预定频率和持续时间的声音脉冲串。 声音突然传播通过介质到位于距离第一点预定距离的第二点。 在第二点，无源声音反射器或有源设备产生返回的声音突发。 靠近发射换能器的接收换能器接收返回的声音。 耦合到接收换能器的检测电路指示返回的声音突发的存在。 一个连接到信号发生器和检测电路的定时器测量了声音往返的经过时间。 所得到的时间测量是沿着第一和第二点之间的路径的平均温度的指示。 该时间测量输出供电子系统使用，或直接处理以表示温度。