公开(公告)号：US20190278358A1

公开(公告)日：2019-09-12

申请号：US16423886

申请日：2019-05-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Hyoung JEON ,  Hark-Sang KIM ,  Seok-Hyo PARK

IPC: G06F1/3234 ,  G06F3/0354 ,  G06F1/3287 ,  G06F1/3203

Abstract: An apparatus for driving a touchpad of a portable terminal including a second control unit controlling the touchpad in an active mode is provided. The apparatus includes a sensor unit for generating interrupt signals when pressure on the touchpad is sensed, a first control unit for outputting activating signals to activate the second control unit when the interrupt signals are input and a switching unit for transmitting the interrupt signals generated from the sensor unit to the first control unit when the second control unit is in an inactive mode. Accordingly, even though the multimedia processor embedded in the portable terminal is in an inactive mode, the multimedia processor is activated when a user presses the touchpad, thereby making it possible to process signals input by touching the touchpad, particularly, to keep the user interface. Furthermore, the multimedia processor embedded in the portable terminal can reduce the consumption of battery power required to maintain the user interface, as compared with multimedia processors maintaining operating in a conventional polling method.

公开(公告)号：US20190011974A1

公开(公告)日：2019-01-10

申请号：US16132034

申请日：2018-09-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Hyoung JEON ,  Hark-Sang KIM ,  Seok-Hyo PARK

IPC: G06F1/32 ,  G06F3/0354

CPC classification number: G06F1/3262 ,  G06F1/3203 ,  G06F1/3287 ,  G06F3/03547 ,  Y02D10/171 ,  Y02D50/20

Abstract: An apparatus for driving a touchpad of a portable terminal including a second control unit controlling the touchpad in an active mode is provided. The apparatus includes a sensor unit for generating interrupt signals when pressure on the touchpad is sensed, a first control unit for outputting activating signals to activate the second control unit when the interrupt signals are input and a switching unit for transmitting the interrupt signals generated from the sensor unit to the first control unit when the second control unit is in an inactive mode. Accordingly, even though the multimedia processor embedded in the portable terminal is in an inactive mode, the multimedia processor is activated when a user presses the touchpad, thereby making it possible to process signals input by touching the touchpad, particularly, to keep the user interface. Furthermore, the multimedia processor embedded in the portable terminal can reduce the consumption of battery power required to maintain the user interface, as compared with multimedia processors maintaining operating in a conventional polling method.

公开(公告)号：US20200159309A1

公开(公告)日：2020-05-21

申请号：US16748237

申请日：2020-01-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jae-Hyoung JEON ,  Hark-Sang KIM ,  Seok-Hyo PARK

IPC: G06F1/3234 ,  G06F3/0354 ,  G06F1/3287 ,  G06F1/3203

Abstract: An apparatus for driving a touchpad of a portable terminal including a second control unit controlling the touchpad in an active mode is provided. The apparatus includes a sensor unit for generating interrupt signals when pressure on the touchpad is sensed, a first control unit for outputting activating signals to activate the second control unit when the interrupt signals are input and a switching unit for transmitting the interrupt signals generated from the sensor unit to the first control unit when the second control unit is in an inactive mode. Accordingly, even though the multimedia processor embedded in the portable terminal is in an inactive mode, the multimedia processor is activated when a user presses the touchpad, thereby making it possible to process signals input by touching the touchpad, particularly, to keep the user interface. Furthermore, the multimedia processor embedded in the portable terminal can reduce the consumption of battery power required to maintain the user interface, as compared with multimedia processors maintaining operating in a conventional polling method.