公开(公告)号：US5225377A

公开(公告)日：1993-07-06

申请号：US695185

申请日：1991-05-03

申请人： John R. Hines ,  Ralph H. Johnson ,  Richard Kirkpatrick

发明人： John R. Hines ,  Ralph H. Johnson ,  Richard Kirkpatrick

IPC分类号： G01L9/00

CPC分类号： G01L9/0042 ,  Y10S438/924

摘要： A structure is formed from two layers of material having opposite conductivity types. A first region is formed within the structure, and extends at least in part into a layer to be etched. A surface of the structure is then masked and etched. The result is a microstructure which varies with the conductivity type and geometry of the region formed and etchant used.

公开(公告)号：US5156052A

公开(公告)日：1992-10-20

申请号：US630687

申请日：1990-12-20

申请人： Ralph H. Johnson ,  John R. Hines

发明人： Ralph H. Johnson ,  John R. Hines

IPC分类号： G01L9/00

CPC分类号： G01L9/0054 ,  G01L9/0042 ,  Y10T29/49103

摘要： A pressure transducer having means for improving the linearity and sensitivity of an output signal from the pressure transducer. Ribs and bosses are introduced in the diaphragm region to collect the moments caused by a difference in pressure on the two sides of the diaphragm and thus improve device sensitivity. In addition, the ribs and bosses prevent stretching of the piezoresistors thus improving the linearity of the device. A constraint can also be included to improve the alignment of the piezoresistors thus improving the linearity of the device.

公开(公告)号：US4602208A

公开(公告)日：1986-07-22

申请号：US717740

申请日：1985-03-29

申请人： John R. Hines

发明人： John R. Hines

IPC分类号： H03K17/14 ,  H03K17/60 ,  G05F3/20

CPC分类号： H03K17/603 ,  H03K17/14 ,  Y10S323/907

摘要： A current switch whose turn-on and turn-off voltages are independent of temperature includes a transistor switch circuit having two input transistors to which a differential voltage is applied, two sensing transistors for sensing turn-on and turn-off voltages respectively, and an output transistor controlled by the sensing transistors. A differential voltage sensing circuit including a differential transistor pair is connected to receive the differential voltage at the inputs of the transistors and to deliver the differential voltage to the transistor switch circuit. A biasing current source is provided to supply biasing currents which vary as a function of temperature to the input and sensing transistors of the switch circuit, and a biasing current source is provided to supply a biasing current which varies as a function of temperature squared to the differential transistor pair.

摘要翻译： 其导通和截止电压独立于温度的电流开关包括具有施加有差分电压的两个输入晶体管的晶体管开关电路，分别用于感测导通和截止电压的两个感测晶体管，以及 输出晶体管由感测晶体管控制。 包括差分晶体管对的差分电压感测电路被连接以在晶体管的输入处接收差分电压并将差分电压传送到晶体管开关电路。 提供偏置电流源以提供与开关电路的输入和感测晶体管作为温度的函数而变化的偏置电流，并且提供偏置电流源以提供偏置电流，该偏置电流随温度平方变化而变化 差分晶体管对。

公开(公告)号：US4614444A

公开(公告)日：1986-09-30

申请号：US752464

申请日：1985-07-05

申请人： John R. Hines ,  Raymond J. Monroe ,  Danny R. Ruppel

发明人： John R. Hines ,  Raymond J. Monroe ,  Danny R. Ruppel

IPC分类号： B62D1/16 ,  F16C17/02 ,  F16J15/32 ,  F16C33/74

CPC分类号： F16C33/74 ,  B62D1/16 ,  F16C17/02 ,  F16J15/32

摘要： A bearing seal assembly (10) provides a seal and a low-friction bearing between a shaft (18) and a housing (20); and includes a relatively flexible annular seal (12) circumscribing the shaft (18), a low friction race (14) circumscribing and nonrotatably mounted to the seal (12) and a low friction case (16) rotatably housing the seal (12) and the race (14). The bearing seal assembly can be used to seal the annular area between an automotive steering column and an automotive body.

摘要翻译： 轴承密封组件（10）在轴（18）和壳体（20）之间提供密封件和低摩擦轴承; 并且包括围绕所述轴（18）的相对柔性的环形密封件（12），外接和不可旋转地安装到所述密封件（12）的低摩擦座圈（14）和可旋转地容纳所述密封件（12）的低摩擦壳体（16） 比赛（14）。 轴承密封组件可用于密封汽车转向柱和汽车车身之间的环形区域。

公开(公告)号：US4612496A

公开(公告)日：1986-09-16

申请号：US656204

申请日：1984-10-01

申请人： John R. Hines

发明人： John R. Hines

IPC分类号： G05F3/22 ,  G05F3/26

CPC分类号： G05F3/225

摘要： A linear voltage-to-current converter which operates entirely from a single power supply, accepts input voltages as low as one diode-drop from ground, and accepts input voltages greater than the power supply voltage is disclosed. Current mirrors sense an input voltage converted to a current through a resistor and reflect the current as one component of the output current. Additional compensation circuits provide a second component of the output current which compensates for non-linearities.

摘要翻译： 从单个电源完全运行的线性电压 - 电流转换器接受低至一个二极管从地面的输入电压，并接受大于电源电压的输入电压。 电流镜检测通过电阻转换成电流的输入电压，并将电流反映为输出电流的一个分量。 额外的补偿电路提供输出电流的第二分量，补偿非线性。

公开(公告)号：US4596961A

公开(公告)日：1986-06-24

申请号：US656206

申请日：1984-10-01

申请人： John R. Hines

发明人： John R. Hines

IPC分类号： H03F1/30 ,  H03F3/45

CPC分类号： H03F1/302

摘要： A temperature dependent amplifier which may be used as a system building block in temperature compensation applications is disclosed. A temperature dependent signal source generates a first order temperature dependent signal which is multiplied by an input signal and divided by a temperature reference signal to produce an output which varies in direct proportion with temperature changes. The input signal is multiplied by the temperature reference signal and divided by the temperature dependent signal to produce an output which varies inversely proportional to temperature changes.

摘要翻译： 公开了可用作温度补偿应用中的系统构建块的依赖于温度的放大器。 依赖于温度的信号源产生一阶温度相关信号，该信号与输入信号相乘，并被温度参考信号除以产生与温度变化成正比的输出。 输入信号乘以温度参考信号，除以温度相关信号，产生与温度变化成反比变化的输出。