Invention Grant
- Patent Title: Integrated force sensing method for haptic function
-
Application No.: US17969589Application Date: 2022-10-19
-
Publication No.: US11842003B1Publication Date: 2023-12-12
- Inventor: Wu Chin-Chung , Yong-Teng Lin , Chun-Kai Tzeng , Bradford Edward Vier
- Applicant: DELL PRODUCTS L.P.
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agency: Larson Newman, LLP
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G01L1/12 ; G06F3/046 ; G06F3/01

Abstract:
A touch panel device includes a face plate, a bracket, and a PCB. The face plate receives a contact. The bracket includes a permanent magnet affixed to a surface of the bracket. The PCB is positioned proximate to the bracket such that a surface of the PCB is adjacent to the bracket. The PCB includes a Hall sensor collocated proximate to the permanent magnet. The touch panel circuit is coupled to the Hall sensor. When the contact is received at the face plate, the PCB moves closer to the bracket. In response, the touch panel circuit receives a voltage from the Hall sensor, determines a force associated with the contact based upon the voltage, and triggers a haptic feedback response in the bracket.
Information query