公开(公告)号：US4490639A

公开(公告)日：1984-12-25

申请号：US529270

申请日：1983-09-06

申请人： John C. Echols ,  Charles W. Staufenberg

发明人： John C. Echols ,  Charles W. Staufenberg

IPC分类号： H01L41/04 ,  H01L41/113 ,  H01L41/08

CPC分类号： H01L41/042 ,  H01L41/1132 ,  Y10S310/80

摘要： The high impedance output of a touch-sensitive piezoelectric sensor is coupled directly to the high impedance input of a CMOS (complementary metal oxide silicon field effect transistor pair). The CMOS is protected on its input side by clamps which restrict the voltage swing applied to the gates to within the range defined by the positive and negative CMOS bias supply (+V.sub.DD and -V.sub.SS). The sensor produces voltages of approximately equal magnitude in response to slow acting temperature changes and quicker acting manual touching. In order to distinguish piezoelectric from pyroelectric signals, the CMOS bias is periodically and briefly shorted, to ensure a brief return-to-zero of the sensor output, thereby effectively suppressing the slow acting pyroelectric signal without interfering with sensing of quick acting piezoelectric signals.

摘要翻译： 触敏压电传感器的高阻抗输出直接耦合到CMOS（互补金属氧化物硅场效应晶体管对）的高阻抗输入。 CMOS的输入侧通过钳位保护CMOS，该钳位将施加到栅极的电压摆幅限制在由正负CMOS偏置电源（+ VDD和-VSS）限定的范围内。 传感器响应于慢作用温度变化和更快速的手动触摸，产生大致相等的电压。 为了区分压电与热电信号，CMOS偏置被周期性地短暂地短路，以确保传感器输出的短暂归零，从而有效地抑制慢作用的热电信号而不干扰快速作用的压电信号的感测。

公开(公告)号：US4636775A

公开(公告)日：1987-01-13

申请号：US599720

申请日：1984-04-12

申请人： James P. Burgess ,  John C. Echols ,  Thomas A. Walker

发明人： James P. Burgess ,  John C. Echols ,  Thomas A. Walker

IPC分类号： G08B13/00

CPC分类号： G08B13/00

摘要： An alarm condition sensor for triggering a signal incorporated in an alarm system and adapted to be mounted on a motor vehicle or other object to protect it against burglary, theft, tampering, or the like. The sensor comprises a sensing mass mounted atop a deformable substrate equipped with piezoelectric material operable to generate a signal voltage upon stressing or deformation of the substrate in response to forces effecting relative movement between the mass and the substrate. The sensor may be mounted on a cantilever spring support which enables the mass to move and thereby stress the substrate and generate a signal voltage. Voltage sensitive means responsive to voltages generated by the piezoelectric material is operable to trigger the alarm system. The sensitivity of the sensor is adjustable to vary the threshold value of the voltage operable to activate the alarm.

摘要翻译： 一种用于触发结合在报警系统中并适于安装在机动车辆或其他物体上的信号的报警条件传感器，以防止其被盗窃，盗窃，篡改等。 传感器包括安装在可变形基板顶部的感测质量，该可变形基底配备有压电材料，该压电材料可操作以响应于影响质量块和基底之间的相对运动的力而在衬底的应力或变形时产生信号电压。 传感器可以安装在悬臂弹簧支撑件上，这使得质量块移动，从而使衬底受到压力并产生信号电压。 响应于由压电材料产生的电压的电压敏感装置可操作以触发报警系统。 传感器的灵敏度可调，以改变可操作以激活报警的电压的阈值。

公开(公告)号：US4742327A

公开(公告)日：1988-05-03

申请号：US558803

申请日：1983-12-07

申请人： James P. Burgess ,  Peter Kaufman

发明人： James P. Burgess ,  Peter Kaufman

IPC分类号： E05B49/00 ,  B60R25/10 ,  E05B45/06 ,  E05B65/20 ,  G07C9/00 ,  B60R25/00

CPC分类号： G07C9/0069 ,  B60R25/1001 ,  B60R25/1003

摘要： A keyless access control and security system especially adapted for use with an automobile and including a piezoelectric permutation touchpad unit which can be affixed, without requiring bodywork, to the outside of the vehicle's door in the key cylinder aperture. The touchpad is illuminated when touched and is therefore usable in the dark. The person seeking access must enter the correct access code combination on the touchpad to open the door and/or the trunk. The touchpad is connected to a remotely located logic circuit which controls access. The circuit provides for a signal of low intensity, indicating that a correction in the code entered into the touchpad should be made and, after a time delay, an alarm of high intensity, if no correction is made. Upon activation of the alarm, the head lights are flashed, the horn is sounded, or both. In order to enable a parking attendant, repairman, or some other authorized person to have access to the automobile without revealing the access code, the logic circuit can be programmed, by operation of the touchpad, using the proper access code and a further secondary code, arbitrarily selected, to provide access to the automobile in response to the secondary code, which later can be erased.

摘要翻译： 一种无钥匙存取控制和安全系统，特别适合于与汽车一起使用，并且包括压电置换触摸板单元，该压电排列触摸板单元可以在钥匙筒孔中的车辆门的外部而不需要车身固定。 触摸板触摸时亮起，因此可在黑暗中使用。 寻求访问的人必须在触摸板上输入正确的访问代码组合才能打开门和/或中继线。 触摸板连接到控制访问的位于远程的逻辑电路。 该电路提供低强度的信号，表示应该进入输入到触摸板的代码中的校正，并且在时间延迟之后，如果不进行校正，则进行高强度的警报。 激活报警时，头灯闪烁，喇叭响起或两者兼而有之。 为了使停车服务员，维修人员或其他授权人员能够访问汽车而不暴露访问代码，逻辑电路可以通过触摸板的操作使用适当的访问代码和另外的次级代码进行编程 ，任意选择，以便响应次级代码提供对汽车的访问，后来可以被擦除。

公开(公告)号：US4458173A

公开(公告)日：1984-07-03

申请号：US463963

申请日：1983-02-04

申请人： Peter Kaufman ,  John J. Sharkey ,  John Echols

发明人： Peter Kaufman ,  John J. Sharkey ,  John Echols

IPC分类号： H03K17/94 ,  H03K17/96 ,  H01L41/08

CPC分类号： H03K17/94 ,  H03K17/964

摘要： A device is disclosed which is useful to generate electric signals particularly in close quarters. The preferred embodiment is described in terms of a piezoelectric signal generator incorporated into the beltline trim of an automobile and an alternate configuration in a flat sheet metal application. The invention is discussed in terms of its ability to take advantage of already existing structural elements of its host body and its ability to be attached without putting holes in such structure.

摘要翻译： 公开了一种可用于特别在近距离产生电信号的装置。 根据结合到汽车的带状装饰件中的压电信号发生器和平板金属应用中的替代构造来描述优选实施例。 根据其本身主体的已有现有结构元件的能力及其在这种结构中没有孔的连接能力的能力来讨论本发明。