公开(公告)号：US10088936B2

公开(公告)日：2018-10-02

申请号：US13735804

申请日：2013-01-07

Applicant: Novasentis, Inc.

Inventor： Brian C. Zellers ,  Li Jiang ,  Christophe Ramstein ,  Stephen Davis ,  M. Fabrice Domingues Dos Santos

IPC: G06F3/02 ,  G09G5/00 ,  G06F3/041 ,  G06F3/01

Abstract: Electromechanical polymer (EMP) actuators are used to create haptic effects on a user interface deface, such as a keyboard. The keys of the keyboard may be embossed in a top layer to provide better key definition and to house the EMP actuator. Specifically, an EMP actuator is housed inside an embossed graphic layer that covers a key of the keyboard. Such a keyboard has a significant user interface value. For example, the embossed key provides the tactile effect of the presence of a key with edges, while allowing for the localized control of haptic vibrations. For such applications, an EMP transducer provides high strains, vibrations or both under control of an electric field. Furthermore, the EMP transducer can generate strong vibrations. When the frequency of the vibrations falls within the acoustic range, the EMP transducer can generate audible sound, thereby functioning as an audio speaker.

公开(公告)号：US09170650B2

公开(公告)日：2015-10-27

申请号：US13683928

申请日：2012-11-21

Applicant: Novasentis, Inc.

Inventor： Christophe Ramstein ,  Li Jiang ,  Brian C. Zellers ,  Shihai Zhang ,  Richard Ducharme ,  Stephen Davis ,  M. Fabrice Domingues Dos Santos

IPC: G06F3/01 ,  H01L41/18 ,  H01L41/08 ,  H01L41/193 ,  H01L41/09

CPC classification number: G06F3/016 ,  H01L41/0926 ,  H01L41/0986 ,  H01L41/193

Abstract: A localized multimodal haptic system includes one or more electromechanical polymer (EMP) transducers, each including an EMP layer, such as an electrostrictive polymer active layer. In some applications the EMP transducer may perform an actuator function or a sensor function, or both. The EMP polymer layer has a first surface and a second surface on which one or more electrodes are provided. The EMP layer of the EMP actuator may be 5 microns thick or less. The EMP transducers may provide local haptic response to a local a stimulus. In one application, a touch sensor may be associated with each EMP transducer, such that the haptic event at the touch sensor may be responded to by activating only the associated EMP transducer. Furthermore, the EMP transducer may act as its own touch sensor. A variety of haptic responses may be made available. The EMP transducers may be used in various other applications, such as providing complex surface morphology, keyboard, braille display, and audio speakers.

Abstract translation: 局部多模式触觉系统包括一个或多个机电聚合物（EMP）换能器，每个都包括EMP层，例如电致伸缩聚合物活性层。 在某些应用中，EMP传感器可以执行执行器功能或传感器功能，或两者兼有。 EMP聚合物层具有第一表面和第二表面，其上设置有一个或多个电极。 EMP致动器的EMP层可以为5微米厚或更小。 EMP传感器可以为局部刺激提供局部触觉响应。 在一个应用中，触摸传感器可以与每个EMP传感器相关联，使得触摸传感器处的触觉事件可以通过仅激活相关联的EMP换能器来响应。 此外，EMP换能器可以作为其自身的触摸传感器。 可以提供各种触觉响应。 EMP传感器可用于各种其他应用，例如提供复杂的表面形态，键盘，盲文显示和音频扬声器。

公开(公告)号：US20200257363A9

公开(公告)日：2020-08-13

申请号：US16139756

申请日：2018-09-24

Applicant: Novasentis, Inc.

Inventor： Brian C. Zellers ,  Li Jiang ,  Christophe Ramstein ,  Stephen Davis

IPC: G06F3/01 ,  G06F3/02 ,  G06F3/041

Abstract: Electromechanical polymer (EMP) actuators are used to create haptic effects on a user interface deface, such as a keyboard. The keys of the keyboard may be embossed in a top layer to provide better key definition and to house the EMP actuator. Specifically, an EMP actuator is housed inside an embossed graphic layer that covers a key of the keyboard. Such a keyboard has a significant user interface value. For example, the embossed key provides the tactile effect of the presence of a key with edges, while allowing for the localized control of haptic vibrations. For such applications, an EMP transducer provides high strains, vibrations or both under control of an electric field. Furthermore, the EMP transducer can generate strong vibrations. When the frequency of the vibrations falls within the acoustic range, the EMP transducer can generate audible sound, thereby functioning as an audio speaker.

公开(公告)号：US20190025925A1

公开(公告)日：2019-01-24

申请号：US16139756

申请日：2018-09-24

Applicant: Novasentis, Inc.

Inventor： Brian C. Zellers ,  Li Jiang ,  Christophe Ramstein ,  Stephen Davis

IPC: G06F3/01 ,  G06F3/02 ,  G06F3/041

CPC classification number: G06F3/016 ,  G06F1/1626 ,  G06F1/1632 ,  G06F3/0202 ,  G06F3/0414 ,  G06F2200/1633 ,  H01H13/85 ,  H01H2003/008 ,  H01H2215/05 ,  H01L41/193

Abstract: Electromechanical polymer (EMP) actuators are used to create haptic effects on a user interface deface, such as a keyboard. The keys of the keyboard may be embossed in a top layer to provide better key definition and to house the EMP actuator. Specifically, an EMP actuator is housed inside an embossed graphic layer that covers a key of the keyboard. Such a keyboard has a significant user interface value. For example, the embossed key provides the tactile effect of the presence of a key with edges, while allowing for the localized control of haptic vibrations. For such applications, an EMP transducer provides high strains, vibrations or both under control of an electric field. Furthermore, the EMP transducer can generate strong vibrations. When the frequency of the vibrations falls within the acoustic range, the EMP transducer can generate audible sound, thereby functioning as an audio speaker.