US 12,405,670 B2
Tactile presentation device and control method
Hiroshi Haga, Kanagawa (JP); and Daisuke Sugimoto, Kanagawa (JP)
Assigned to TIANMA MICROELECTRONICS CO., LTD., Shenzhen (CN)
Filed by TIANMA MICROELECTRONICS CO., LTD., Shenzhen (CN)
Filed on Oct. 13, 2023, as Appl. No. 18/486,285.
Application 18/486,285 is a division of application No. 17/661,968, filed on May 4, 2022, granted, now 11,822,725.
Application 17/661,968 is a division of application No. 17/247,816, filed on Dec. 23, 2020, granted, now 11,353,961, issued on Jun. 7, 2022.
Application 17/247,816 is a division of application No. 15/789,122, filed on Oct. 20, 2017, granted, now 10,908,688, issued on Feb. 2, 2021.
Claims priority of application No. 2016-207062 (JP), filed on Oct. 21, 2016; and application No. 2017-155769 (JP), filed on Aug. 10, 2017.
Prior Publication US 2024/0045507 A1, Feb. 8, 2024
Int. Cl. G06F 3/01 (2006.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/016 (2013.01) [G06F 3/0416 (2013.01); G06F 3/04166 (2019.05); G06F 3/044 (2013.01); G06F 3/0446 (2019.05)] 4 Claims
OG exemplary drawing
 
1. A tactile presentation device comprising:
a contact face; and
a plurality of electrodes arranged in parallel, wherein
at least one of the plurality of the electrodes is used for detecting a contact or approach of an object toward the contact face and for presenting a tactile sense to the contact face,
a first voltage signal for detecting a contact or approach of an object toward the contact face is applied one after another to the electrodes not adjacent to each other according to elapse of time,
a time interval for changing the electrode that the first voltage signal is applied to is shorter than 10 ms, and
a second voltage signal for presenting a tactile sense to the contact face is applied continuously to the electrode for which applying of the first voltage signal is finished.