公开(公告)号：US20250028400A1

公开(公告)日：2025-01-23

申请号：US18224655

申请日：2023-07-21

Applicant: Dell Products L.P.

Inventor： Wu Chin-Chung ,  Che-Jung Chang ,  Yueh-Ching Lu ,  Yong-Teng Lin

IPC: G06F3/038 ,  G06F3/0354

Abstract: An information handling system includes a touchpad that accepts touch inputs to move a cursor on a display and that deflects at a front side to accept button inputs. A bracket is disposed between a touch detection surface and circuit board of the touchpad to bias the touch detection surface up and deflect in response to a push down as a button input. Conical spring ground devices coupled to the circuit board on opposing sides of the bracket interface with an ohmmeter included on the circuit board that detects a resistance from a first ground device through the system ground to a second ground device. Resistance across ground is applied by the touchpad processor to adjust touch detection sensitivity and avoid ghost inputs.

公开(公告)号：US11991859B2

公开(公告)日：2024-05-21

申请号：US17812193

申请日：2022-07-13

Applicant: Dell Products L.P.

Inventor： Chin-Chung Wu ,  Chun-Han Lin ,  Che-Jung Chang ,  Yueh Ching Lu

IPC: H05K7/20 ,  G06F1/20

CPC classification number: H05K7/20336 ,  G06F1/206

Abstract: An apparatus may include a heat pipe with a first portion residing in a first plane, a second portion residing in the first plane and a third portion positioned between the first portion and the second portion, the third portion residing in a second plane spaced-apart from the first plane. The apparatus further includes a base plate including an opening and a clip plate having a first region, a second region and a third region positioned between the first and the second regions. The third portion of the heat pipe is positioned within the opening, and the clip plate is coupled to the base plate such that i) the third region of the clip plate is in superimposition with the third portion of the heat pipe and ii) third region of the clip plate resides in the first plane.