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    • 1. 发明授权
    • Temperature measurement device
    • 温度测量装置
    • US06565178B1
    • 2003-05-20
    • US10002751
    • 2001-10-29
    • Matthew D GiereSatya PrakashMichael J. Barbour
    • Matthew D GiereSatya PrakashMichael J. Barbour
    • B41J2938
    • B41J2/04541B41J2/04555B41J2/04563B41J2/0458B41J2/04591B41J2/14088B41J2/14153B41J2202/03
    • An apparatus includes a substrate and a resistive element attached to a region of the substrate and formed of a first material having a first temperature coefficient of resistivity. In addition, the apparatus includes a pair of traces coupled to the resistive element, attached to the substrate, and formed of a second material having a second temperature coefficient of resistivity with the first material selected so that the first temperature coefficient of resistivity exceeds the second temperature coefficient of resistivity. An apparatus includes a substrate and a resistive element disposed onto a first region of the substrate and formed of a first material having a first temperature coefficient of resistivity. In addition, the apparatus includes a pair of traces coupled to the resistive element and each formed of a first plurality of sections of a second material having a second temperature coefficient of resistivity and a second plurality of sections of a third material having a third temperature coefficient of resistivity.
    • 一种装置包括基板和电阻元件,该电阻元件附接到基板的区域并由具有第一温度系数电阻率的第一材料形成。 另外,该装置包括耦合到该电阻元件的一对迹线,附着到该基板上,并且由第二材料形成,该第二材料具有第二温度系数的电阻率,该第一温度系数选择第一材料,使得该第一温度系数电阻率超过该第二温度系数 电阻温度系数。 一种设备包括衬底和设置在衬底的第一区域上并由具有第一温度系数电阻率的第一材料形成的电阻元件。 另外,该装置包括耦合到电阻元件的一对迹线,并且每一个由具有第二温度系数电阻率的第二材料的第一多个部分形成,并且具有第三材料的第二多个部分具有第三温度系数 的电阻率。
    • 3. 发明授权
    • Thermal inkjet printhead warming circuit
    • 热喷墨打印头加热电路
    • US5992979A
    • 1999-11-30
    • US99119
    • 1998-06-17
    • Michael J. BarbourGeorge H. Corrigan
    • Michael J. BarbourGeorge H. Corrigan
    • B41J2/05B41J2/14
    • B41J2/04528B41J2/04541B41J2/04563B41J2/0458B41J2/14072
    • For each printhead nozzle, nozzle circuitry includes a warming transistor, drive transistor and heating resistor. To maintain a threshold temperature at the printhead, a warming pulse is sent from the warming transistor to the heating resistor of one or more nozzles when the temperature falls below a prescribed temperature. To fire a nozzle a firing pulse is output from the drive transistor to the heating resistor. The warming transistor is laid out as a segmented portion of the drive transistor layout area. No layout penalty is incurred by including the warming transistor for each nozzle. The source of a warming transistor is coupled in common to the source of a drive transistor. The drain of the warming transistor is coupled in common to the drain of the drive transistor. The gates are separate. The gates receive respective warming or firing control signals. The drains are coupled to the heating resistor.
    • 对于每个打印头喷嘴,喷嘴电路包括加温晶体管,驱动晶体管和加热电阻器。 为了保持打印头的阈值温度,当温度低于规定温度时,加温脉冲从加温晶体管发送到一个或多个喷嘴的加热电阻器。 为了点燃喷嘴,从驱动晶体管向发热电阻器输出点火脉冲。 加热晶体管布置为驱动晶体管布局区域的分段部分。 通过包括每个喷嘴的加温晶体管不会造成布局损失。 加温晶体管的源极共同连接到驱动晶体管的源极。 加热晶体管的漏极共同耦合到驱动晶体管的漏极。 门是分开的。 门接收各自的升温或点火控制信号。 排水管连接到加热电阻器。