公开(公告)号：US20170160859A1

公开(公告)日：2017-06-08

申请号：US15230278

申请日：2016-08-05

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Chia-Yi CHU ,  Song Sheng LIN

IPC: G06F3/041 ,  G06F3/0488 ,  G06F3/038 ,  G06F3/0354

CPC classification number: G06F3/0416 ,  G06F3/03545 ,  G06F3/0383 ,  G06F3/04883 ,  G06F2203/0384 ,  G06F2203/04104 ,  G06F2203/04106

Abstract: A dual-mode touch sensing method adapted for a stylus and a touch panel comprising N first signal lines and M second signal lines. The method comprises: sequentially controlling the N first signal lines to emit N corresponding pulse signals in N gesture periods in a scanning period, receiving M gesture feedback signals corresponding to the pulse signals via the M second signal lines in each among the N gesture periods, selectively generating a gesture signal based on the gesture feedback signals, determining a stylus period other than the N gesture periods in the scanning period by the stylus, generating a stylus signal in the stylus period by the stylus, and receiving the stylus signal and generating a stylus touching signal accordingly by the touch panel.

公开(公告)号：US20240388114A1

公开(公告)日：2024-11-21

申请号：US18665138

申请日：2024-05-15

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Song Sheng LIN ,  Keng-Nan CHEN

IPC: H02J7/00 ,  G05F3/16

Abstract: A constant current charging device is configured to charge a device to be charged and includes: a reference current source; a current mirror electrically coupled to the reference current source and configured to output a mirror current; a current adjustment control unit electrically coupled to the current mirror and the device to be charged; and a current compensation unit electrically coupled to the current mirror and the current adjustment control unit. The current adjustment control unit includes a control transistor and a control contact connected to an output terminal of the current compensation unit and the control transistor, wherein the current adjustment control unit controls the control transistor according to a charging voltage to reduce current flows through the control contact.

公开(公告)号：US20240388113A1

公开(公告)日：2024-11-21

申请号：US18664966

申请日：2024-05-15

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Song Sheng LIN ,  Keng-Nan CHEN

IPC: H02J7/00

Abstract: A constant current charging device is configured to charge a device to be charged and includes: a reference current source configured to provide a reference current; a current mirror electrically coupled to the reference current source and configured to output a mirror current; a current adjustment control unit electrically coupled to the current mirror and the device to be charged wherein the current adjustment control unit is configured to output a charging current according to the mirror current to charge the device to be charged; and a current compensation unit electrically coupled to the current mirror and the current adjustment control unit. The current adjustment control unit includes a voltage follower unit, and the current adjustment control unit tracks a charging voltage through the voltage follower unit to stabilize the charging current.