Patents Assigned to Eye Plus Plus, Inc.
  • Patent number: 8920174
    Abstract: An electro-tactile display includes an electrode substrate provided with a plurality of stimulation electrodes, a conductive gel layer positioned between the stimulation electrodes and the skin of a wearer, a switching circuit section electrically connected to the stimulation electrodes, a stimulation pattern generating section electrically connected to the switching circuit, and means for alleviating a sensation experienced by the wearer as a result of the stimulation electrodes. In one aspect, the means for alleviating a sensation is configured from the conductive gel layer. The conductive gel layer has a resistance value equivalent to that of the horny layer of the skin. In another aspect, the means for alleviating a sensation is configured from the stimulation determination means and the threshold value adjustment means.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: December 30, 2014
    Assignees: The University of Tokyo, Eye Plus Plus, Inc.
    Inventors: Susumu Tachi, Hiroyuki Kajimoto, Yonezo Kanno
  • Patent number: 8330729
    Abstract: An electro-tactile display comprises at least one current source, arrayed electrodes, and a switching circuit for connecting each electrode to the current source or to ground. The electro-tactile display is characterized by selecting one or a plurality of electrodes from the arrayed electrodes and connecting the selected electrodes to the current source to provide current source electrodes, alternately connecting neighboring electrodes in the vicinity of said current source electrodes to the current source and to ground, connecting a plurality of remaining electrodes other than the neighboring electrodes to ground to provide ground electrodes, and providing electrical stimulation from the current source electrodes wherein the current source electrodes are spaced apart from the ground electrodes via the neighboring electrodes. Tactile sensations are presented by switching over the current source electrodes at a predetermined time interval.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: December 11, 2012
    Assignees: The University of Tokyo, Eye Plus Plus, Inc.
    Inventors: Susumu Tachi, Hiroyuki Kajimoto, Yonezo Kanno
  • Publication number: 20100151426
    Abstract: An electro-tactile display includes an electrode substrate provided with a plurality of stimulation electrodes, a conductive gel layer positioned between the stimulation electrodes and the skin of a wearer, a switching circuit section electrically connected to the stimulation electrodes, a stimulation pattern generating section electrically connected to the switching circuit, and means for alleviating a sensation experienced by the wearer as a result of the stimulation electrodes. In one aspect, the means for alleviating a sensation is configured from the conductive gel layer. The conductive gel layer has a resistance value equivalent to that of the horny layer of the skin. In another aspect, the means for alleviating a sensation is configured from the stimulation determination means and the threshold value adjustment means.
    Type: Application
    Filed: December 7, 2006
    Publication date: June 17, 2010
    Applicant: EYE PLUS PLUS, INC.
    Inventors: Susumu Tachi, Hiroyuki Kajimoto, Yonezo Kanno
  • Publication number: 20090174671
    Abstract: An electro-tactile display comprises at least one current source, arrayed electrodes, and a switching circuit for connecting each electrode to the current source or to ground. The electro-tactile display is characterized by selecting one or a plurality of electrodes from the arrayed electrodes and connecting the selected electrodes to the current source to provide current source electrodes, alternately connecting neighboring electrodes in the vicinity of said current source electrodes to the current source and to ground, connecting a plurality of remaining electrodes other than the neighboring electrodes to ground to provide ground electrodes, and providing electrical stimulation from the current source electrodes wherein the current source electrodes are spaced apart from the ground electrodes via the neighboring electrodes. Tactile sensations are presented by switching over the current source electrodes at a predetermined time interval.
    Type: Application
    Filed: March 9, 2006
    Publication date: July 9, 2009
    Applicants: The University of Tokyo, Eye Plus Plus, Inc.
    Inventors: Susumu Tachi, Hiroyuki Kajimoto, Yonezo Kanno