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181 条记录 (耗时 0.085 秒)

    Method and apparatus to reduce parasitic forces in electro-mechanical systems
    31.
    发明申请
    Method and apparatus to reduce parasitic forces in electro-mechanical systems 有权
    减少机电系统寄生力的方法和装置

    公开(公告)号：US20050104144A1

    公开(公告)日：2005-05-19

    申请号：US10718482

    申请日：2003-11-19

    申请人： Xiao Yang ,  Shoucheng Zhang ,  Dongmin Chen ,  Jie Chen

    发明人： Xiao Yang ,  Shoucheng Zhang ,  Dongmin Chen ,  Jie Chen

    IPC分类号： B81B3/00 ,  G02B26/08 ,  H01L21/00 ,  H01L27/14 ,  H01L29/82

    CPC分类号： B81B3/0008 ,  B81B2201/042 ,  G02B26/0841

    摘要： An electromechanical system, the system comprising a first surface with an electrically activated electrode coupled to the first surface and to an electrical source to receive a first signal. The system further comprising a moveable structure suspended at a first height over the first surface, the moveable structure being attracted toward the electrode based upon the first signal, and the moveable structure being attracted toward the first surface through an interaction with one or more parasitic forces. The systems also provides a landing post coupled to the moveable structure, the landing post being adapted to contact the base of the landing post against the first surface when the electrically activated electrode receives a predetermined voltage bias associated with the first signal, thereby maintaining an outer portion of the moveable structure free from physical contact with the first surface and reducing a magnitude of one or more parasitic forces.

    摘要翻译： 一种机电系统，该系统包括具有电活动电极的第一表面，该电活动电极耦合到第一表面和电源以接收第一信号。 所述系统还包括悬挂在所述第一表面上的第一高度处的可移动结构，所述可移动结构基于所述第一信号被吸引到所述电极，并且所述可移动结构通过与一个或多个寄生力的相互作用而被吸引到所述第一表面 。 这些系统还提供了一个联接到可移动结构的着陆柱，当电活动电极接收到与第一信号相关联的预定电压偏置时，着陆柱适于接触着陆柱的底部抵靠第一表面，由此保持外部 可移动结构的部分没有与第一表面的物理接触并且减小一个或多个寄生力的大小。

    Apparatus and method for dual tone multifrequency signal detection
    34.
    发明授权
    Apparatus and method for dual tone multifrequency signal detection 失效
    双音多频信号检测装置及方法

    公开(公告)号：US5535271A

    公开(公告)日：1996-07-09

    申请号：US250783

    申请日：1994-05-27

    申请人： Shrirang Jangi ,  Jie Chen

    发明人： Shrirang Jangi ,  Jie Chen

    IPC分类号： H04Q1/457 ,  H04Q1/46 ,  H04M1/00

    CPC分类号： H04Q1/46 ,  H04Q1/457

    摘要： A DTMF digit detecting method and apparatus includes signal state identifier (32) for identifying whether the received signal is in a DTMF-digit-detect state, a no-detect high-energy state, or a no-detect low-energy state, digit candidate identification processor (34) for identifying a digit candidate when the presence of a state other than the no-detect low-energy state is detected following a detection of the presence of the no-detect low-energy state for a first predetermined period of time, digit identifier (32) for identifying a DTMF digit corresponding to a sample group in a DTMF-digit-detect state, and valid digit identifier (34) for identifying a valid DTMF digit when at least a first predetermined number of sample groups are all in the DTMF-digit-detect state or in an allowable combination of states. An allowable combination of states exists provided the following conditions are met: (1) at least half of the first predetermined number of sample groups are in the DTMF-digit-detect state and correspond to the same DTMF digit; (2) no two sequential sample groups are in a state other than the DTMF-digit-detect state; and (3) no two sequential sample groups in the DTMF-digit-detect state correspond to one or more DTMF digits other than the DTMF digit corresponding to at least half of the first predetermined number of sample groups.

    摘要翻译： DTMF数字检测方法和装置包括信号状态标识符（32），用于识别接收到的信号是否处于DTMF数字检测状态，无检测高能量状态或无检测低能量状态 候选识别处理器（34），用于在检测到第一预定周期的无检测低能量状态的存在之后检测到在不检测低能量状态以外的状态的存在时识别数字候选 用于识别与DTMF数字检测状态中的样本组相对应的DTMF数字的时间数字标识符（32）和用于当至少第一预定数量的采样组时识别有效DTMF数字的有效数字标识符（34） 全部处于DTMF数字检测状态或允许的状态组合。 存在允许的状态组合，只要满足以下条件：（1）第一预定数量的采样组中的至少一半处于DTMF数字检测状态并对应于相同的DTMF数字; （2）没有两个连续的采样组处于DTMF位数检测状态以外的状态; 和（3）DTMF数字检测状态中没有两个连续的采样组对应于与第一预定数量的采样组的至少一半对应的DTMF数字以外的一个或多个DTMF​​数字。

    Patient-specific tray for orthodontic vibrational force management
    36.
    发明授权
    Patient-specific tray for orthodontic vibrational force management 有权

    公开(公告)号：US11311351B2

    公开(公告)日：2022-04-26

    申请号：US16503918

    申请日：2019-07-05

    申请人： Jie Chen

    发明人： Jie Chen

    IPC分类号： A61C7/00 ,  A61C7/36

    摘要： A device for accelerating tooth movement under orthodontic treatment is disclosed. The device includes a vibrational source and a patient-specific tray. The device applies vibrational forces with prescribed frequency and intensity to the teeth under orthodontic treatment with traditional appliances, such as bracket-wire system or aligner. The patient-specific tray ensures the vibrational stimulations on the teeth to be moved. The level of stimulation intensity can be controlled by varying the preload on each of the teeth based on the clinician's prescription. The tray can be further modified to ensure continuous delivery of the desired vibrational forces on the teeth when they move during the treatment.