专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4651122A Miniature electro-mechanical transducer for measuring loads and displacement 失效
标题翻译：用于测量载荷和位移的微型机电传感器
公开(公告)号：US4651122A
公开(公告)日：1987-03-17
申请号：US796044
申请日：1985-11-04
申请人： Cecil H. Bannister , Paul N. Ramsden , Loretino M. Latessa
发明人： Cecil H. Bannister , Paul N. Ramsden , Loretino M. Latessa
IPC分类号： G01L1/20 , H01C10/00
CPC分类号： G01L1/20
摘要： A miniature electro-mechanical transducer uses a body of elastomeric material composed of alternate layers of flexible dielectric material and flexible conductive material. The ends of the layers form opposite surfaces. An actuating member moves against one surface and the other surface contacts two spaced electrodes. The arrangement is such that a progressively increasing number of layers of conductive material are brought into an electrically parallel circuit between the electrodes.
摘要翻译：微型机电换能器使用由柔性电介质材料和柔性导电材料的交替层组成的弹性材料体。层的端部形成相对的表面。致动构件相对于一个表面移动，另一个表面接触两个间隔开的电极。该布置使得逐渐增加数量的导电材料层被带入电极之间的电并联电路。

2. 发明授权

US4395630A Photoelectric measuring ruler including fault detection apparatus 失效
标题翻译：光电测量尺包括故障检测装置
公开(公告)号：US4395630A
公开(公告)日：1983-07-26
申请号：US226388
申请日：1981-01-19
申请人： Paul N. Ramsden , Michael H. Groves
发明人： Paul N. Ramsden , Michael H. Groves
IPC分类号： G01D5/36 , G01B3/10 , G01B7/00 , G01B11/02 , G01B21/02 , G01D5/244 , H03M1/00 , G01B3/02 , H01J3/14
CPC分类号： G01B3/1061 , G01B11/02 , G01D5/24404 , G01B2003/1069 , H03M1/30
摘要： A measuring rule has a coilable steel measuring blade extensible through an opening in a housing and is marked along its length with regularly spaced dark areas separated by light areas. Two pairs of light sensors are located near the rule each associated with a light emitter. Each sensor is 180.degree. out of phase with the other sensor of the pair and 90.degree. out of phase with the other two sensors. The outputs of each pair of sensors are used to produce a difference signal. The difference signals are used by a counter to measure the magnitude and direction of movement of the blade. Each sensor output signal is divided by voltage divider to give a divided signal and each sensor output signal is compared with the complementary divided signal at the instant the difference signal of the other pair of sensors changes state and a fault signal is generated if its minimum is larger than the maximum of the complementary divided signal. The fault signal is generated when an abnormal deviation in a sensor output signal occurs even if the deviation is insufficient to cause a count error.
摘要翻译：测量规则具有通过壳体中的开口可延伸的可卷曲钢测量刀片，并且沿着其长度标记有由光区域分开的规则间隔的暗区域。两对光传感器位于与光发射器相关联的规则附近。每个传感器与对方的其他传感器相差180度，与其他两个传感器相差90度。每对传感器的输出用于产生差分信号。差分信号由计数器用于测量叶片的运动的大小和方向。每个传感器输出信号由分压器分压以给出分频信号，并且每个传感器输出信号在另一对传感器的差信号改变状态的瞬间与互补分频信号进行比较，如果其最小值为大于互补分频信号的最大值。当发生传感器输出信号的异常偏差，即使偏差不足以引起计数误差，也会产生故障信号。

3. 发明授权

US5495583A Voice bus for a computer backplane 失效
标题翻译：计算机背板的语音总线
公开(公告)号：US5495583A
公开(公告)日：1996-02-27
申请号：US251992
申请日：1994-06-01
申请人： Bruce L. Townsend , Mary L. Keegstra , Balwantrai Mistry , Paul N. Ramsden , Raymond B. Wallace
发明人： Bruce L. Townsend , Mary L. Keegstra , Balwantrai Mistry , Paul N. Ramsden , Raymond B. Wallace
IPC分类号： H04Q11/04 , H04J3/12 , G06F15/16
CPC分类号： H04Q11/0421 , H04Q2213/003 , H04Q2213/299 , H04Q2213/391
摘要： A voice bus on a computer backplane provides point-to-point connection between a plurality of slots on the backplane to a particular slot. Connection from the plurality of slots is provided by third connectors which lie between first and second connectors defining the slots. Connection to the particular slot is via its respective second connector. In particular, the computer backplane is physically and electrically compatible with the IEEE standard 1014-1987 defining the VMEbus. The presence of the third connector is compatible with the VMEbus standard both electrically and physically.
摘要翻译：计算机背板上的语音总线提供背板上的多个时隙与特定时隙之间的点对点连接。通过位于限定槽之间的第一和第二连接器之间的第三连接器提供从多个狭槽的连接。通过其相应的第二连接器连接到特定的插槽。特别地，计算机背板与定义VMEbus的IEEE标准1014-1987物理和电气兼容。第三个连接器的存在与电气和物理上的VMEbus标准兼容。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式