Samsung Electronics Co., Ltd.

Cheolyoon Chung

Chihyun Cho

Hyunseok Kim

Kyungmin Lee

Eunseok Hong

Kisun Lee

Jaehwan Lee

Hangseok Choi

Kuchul Jung

Hoyeong Lim

Yongseung Yi

Sangmoo Hwangbo

Incheol Baek

Kyungwoo Lim

Hyunseok Park

Gyounghwan Park

Choongsun Shim

Hyunseok Seo

Disclosed is an electronic device including: a USB connector connected to a USB plug of an external device; a high-speed interface; a voltage source for supplying a voltage to the high-speed interface; a first circuit portion connected to a ground portion, and has a second impedance higher than a first impedance of the high-speed interface; and a processor. The processor is configured to monitor the external device by using the high-speed interface in a first interval of a first frame, form a disconnection sensing path by forming a connection between the first circuit portion and a second circuit portion of the external device, and use the disconnection sensing path to determine whether the connection between the USB connector and the USB plug has been disconnected. The second circuit portion may have a fourth impedance higher than a third impedance of an external high-speed interface. Various other embodiments are also possible.

Electronic device comprising connector and method for sensing disconnection

According to various embodiments, a printed circuit board may include: a first wiring layer including at least one first signal line and at least one first dummy line; and a second wiring layer arranged on the first wiring layer and including at least one second signal line and at least one second dummy line, wherein when the printed circuit board is viewed from above, the at least one first signal line may be arranged to overlap, at least in part, the at least one second dummy line, and the at least one second signal line may be arranged to overlap, at least in part, the at least one first dummy line.

Printed circuit board and electronic device including same

An electronic device for controlling voltage and a method therefor are provided. The electronic device includes a power regulator, a connector including one or more signal terminals and one or more power terminals electrically connected to the power regulator, and a control circuit electrically connected to the one or more signal terminals. The control circuit is configured to identify a type of an external electronic device connected through the connector, identify detected values for at least some of the one or more signal terminals based at least on the identified type corresponding to a predetermined type, and output, through the power regulator, a predetermined voltage to the external electronic device through the one or more power terminals based at least on the detected value being within a first predetermined range.

Method and electronic device for controlling voltage output to external electronic device according to size of voltage detected at signal terminal connected to external electronic device

Various embodiments relate to an electronic device and a method for outputting an alert, and a system comprising a locking device coupled to the electronic device. To this end, the electronic device, according to various embodiments, comprises: a connection terminal; and a processor, wherein the processor is configured to: detect a connection with a locking device via the connection terminal; receive an identifier of the locking device from the locking device; identify the received identifier to set the electronic device in an alert mode; detect a disconnection between the electronic device and the locking device; and output an alert in response to the detected disconnection. Other embodiments may be possible.

Electronic device and method for outputting alert, and system comprising locking device coupled to electronic device

Growing community of inventors

Suwon-si, South Korea

Cheolyoon Chung