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公开(公告)号：US5896049A
公开(公告)日：1999-04-20
申请号：US955077
申请日：1997-10-21
CPC分类号： G01R23/10
摘要： A circuit for measuring the frequency of an electrical signal includes a detector that senses a reoccurring phase point the electrical signal. A divide-by-M counter is connected to the detector and produces a control signal upon every Mth occurrence of the indication, where M is a positive number greater than one. A clock signal generator is provided. An output counter counts cycles of the clock signal between occurrences of the control signal and divides the count by M to produce an output count that corresponds to the frequency of the electrical signal.
摘要翻译： 用于测量电信号的频率的电路包括检测器，其检测重现相位点的电信号。 除数M计数器连接到检测器，并在指示的每第M次发生时产生控制信号，其中M是大于1的正数。 提供时钟信号发生器。 输出计数器对控制信号发生之间的时钟信号的周期进行计数，并将计数除以M以产生对应于电信号频率的输出计数。
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公开(公告)号：US06005381A
公开(公告)日：1999-12-21
申请号：US955080
申请日：1997-10-21
IPC分类号： H03K5/1536 , G01R23/02 , H03K9/06
CPC分类号： H03K5/1536
摘要： A circuit for detecting a predefined reoccurring phase point an periodic electrical signal has an input stage which rectifies the signal into first and second complementary signals. A Schmitt circuit has an input connected to the rectifier stage and produces a first intermediate signal in response to the voltage of the first complementary signal. A complementary Schmitt circuit is connected to the rectifier stage and produces a second intermediate signal in response to the voltage of the second complementary signal. An output stage that is connected to the Schmitt circuit and the complementary Schmitt circuit, responds to the first and second intermediate signals by producing an indication of each occurrence of the reoccurring phase point in the periodic electrical signal.
摘要翻译： 用于检测周期性电信号的预定义的再现相位点的电路具有将信号整流为第一和第二互补信号的输入级。 施密特电路具有连接到整流器级的输入端，并响应于第一互补信号的电压产生第一中间信号。 互补施密特电路连接到整流器级，并响应于第二互补信号的电压产生第二中间信号。 连接到施密特电路和互补施密特电路的输出级通过产生周期性电信号中重现相位点的每次出现的指示来响应第一和第二中间信号。
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公开(公告)号：US20100219668A1
公开(公告)日：2010-09-02
申请号：US12784263
申请日：2010-05-20
CPC分类号： A61G5/14 , A61G7/1007 , A61G7/1046 , A61G2200/34 , A61G2200/36
摘要： Devices and methods are disclosed which relate to lifting a user from a seated position to a raised position. This is performed by incorporating a lifting mechanism into a seat coupled to a movable base portion. Actuators coupled to drive shafts enable a plurality of linkages to be raised and tilted, enabling the seat to rise at the push of a button or other triggering mechanism. A plurality of compressible springs enables an even balance between the weight of the human and the pressure of the lifting mechanism underneath the seat. As the lifting portion lifts the seat, an angle of the seat changes from a substantially horizontal position to a relatively angled position, mimicking the natural motion of the hips and thighs for humans needing assistance. Embodiments disclosed include using the device as a bedside toilet, having a removable bowl attached to the seat, or using the device placed over a toilet.
摘要翻译： 公开了涉及将使用者从就座位置提升到升高位置的装置和方法。 这通过将提升机构并入连接到可移动基部的座中来执行。 联接到驱动轴的致动器使得能够升高和倾斜多个连杆，使得座椅能够在推动按钮或其它触发机构时上升。 多个可压缩弹簧使得人体的重量与座椅下方的提升机构的压力之间的均衡平衡。 当提升部分升起座椅时，座椅的角度从基本上水平的位置变化到相对倾斜的位置，模仿需要帮助的人的臀部和大腿的自然运动。 所公开的实施例包括将该装置用作床头厕所，具有附接到座椅的可移除的碗，或者使用放置在马桶上的装置。
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公开(公告)号：US06883351B2
公开(公告)日：2005-04-26
申请号：US10200798
申请日：2002-07-22
IPC分类号： G02B6/00 , C03B37/012 , C03B37/014 , C03B37/018
CPC分类号： C03B37/01473 , C03B37/01466 , C03B2201/31
摘要： The method of fabricating an optical waveguide fiber from a preform having a centerline aperture which includes reducing the pressure in the centerline aperture, then increasing the pressure in the centerline aperture to a pressure in order to improve uniformity, circularity, and/or symmetry around the centerline aperture region.
摘要翻译： 从具有中心线孔径的预制件制造光波导纤维的方法包括减小中心线孔径中的压力，然后将中心孔径中的压力增加到压力，以便改善围绕该中心线孔径的均匀性，圆形度和/或对称性 中心线孔径区域。
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