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    METHODS AND DEVICES FOR HAPTIC COMMUNICATION
    3.
    发明申请
    METHODS AND DEVICES FOR HAPTIC COMMUNICATION 审中-公开

    公开(公告)号：US20180212137A1

    公开(公告)日：2018-07-26

    申请号：US15880907

    申请日：2018-01-26

    申请人： THE TRUSTEES OF DARTMOUTH COLLEGE ,  FACEBOOK, INC.

    发明人： Zi Chen ,  John X.J. Zhang ,  Frances Lau ,  Ali Israr

    IPC分类号： H01L41/047 ,  H01L41/08 ,  H01L41/083 ,  H01L41/09 ,  A61B5/00

    摘要： A haptic stimulator includes a multilayer sheet with a piezoelectric or electroactive polymer layer adapted to mechanically deform upon application of voltage, the multilayer sheet secured to a substrate, and a source of electrical stimulation coupled to drive electrodes on the polymer layer with an AC signal to vibrate the polymer layer. In particular embodiments, the polymer contains polyvinylidene fluoride, and electrodes are patterned to control local electric fields. Another haptic stimulator has first and second electrodes with an air gap and an insulating sheet between first and second electrodes, with an AC voltage driver connecting to the electrodes. In a method of providing haptic stimulation to skin an alternating current supply drives first and second electrodes, the electrodes disposed upon either a piezoelectric or electroactive polymer sheet, vibrating the polymer layer by driving the electrodes; and coupling vibrations of the polymer layer to the sensate skin.

    ENVELOPE ENCODING OF SPEECH SIGNALS FOR TRANSMISSION TO CUTANEOUS ACTUATORS
    9.
    发明申请
    ENVELOPE ENCODING OF SPEECH SIGNALS FOR TRANSMISSION TO CUTANEOUS ACTUATORS 审中-公开

    公开(公告)号：US20180301140A1

    公开(公告)日：2018-10-18

    申请号：US15949392

    申请日：2018-04-10

    申请人： Facebook, Inc.

    发明人： Robert Turcott ,  Ali Israr ,  Brian Alexander Knott ,  Freddy Abnousi

    IPC分类号： G10L13/04 ,  G10L15/22 ,  G10L21/0272 ,  G10L15/02 ,  G10L21/02 ,  G09B21/04 ,  G09B21/00

    摘要： A haptic communication device includes a speech signal generator configured to receive speech sounds or a textual message and generate speech signals corresponding to the speech sounds or the textual message. An envelope encoder is operably coupled to the speech signal generator to extract a temporal envelope from the speech signals. The temporal envelope represents changes in amplitude of the speech signals. Carrier signals having a periodic waveform are generated. Actuator signals are generated by encoding the changes in the amplitude of the speech signals from the temporal envelope into the carrier signals. One or more cutaneous actuators are operably coupled to the envelope encoder to generate haptic vibrations representing the speech sounds or the textual message using the actuator signals.

    HAPTIC COMMUNICATION USING INTERFERENCE OF HAPTIC OUTPUTS ON SKIN
    10.
    发明申请
    HAPTIC COMMUNICATION USING INTERFERENCE OF HAPTIC OUTPUTS ON SKIN 审中-公开

    公开(公告)号：US20180301001A1

    公开(公告)日：2018-10-18

    申请号：US15949844

    申请日：2018-04-10

    申请人： Facebook, Inc.

    发明人： Brian Alexander Knott ,  Robert Turcott ,  Ali Israr

    IPC分类号： G08B6/00

    摘要： Embodiments relate to enhancing haptic communication by using two or more cutaneous actuators to create constructive or destructive interference patterns on the receiving user's skin. The actuator signals for the two or more cutaneous actuators are shaped and generated so that the two or more cutaneous actuators cause vibrations on the receiving user's patch of skin to increase or decrease. In this way, various enhancement to haptic communication can be achieved.