Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Chang-Byung Park

Sung-Soo Park

Byung-Hoon Kang

Sang-Wook Kwon

Gyu-Hyeong Cho

Byung-jik Kim

Sang-ho Kim

Seung-jin Oh

Ki-Duk Kim

Kang-Nam Kim

Yeun-hee Huh

A touch sensing device determines a contact location of a pen by using a first electrode signal generated from a first electrode of the pen, determines additional information related to the pen by using a second electrode signal generated from a second electrode of the pen, and can determine tilt information of the pen and/or rotation information of the pen by using a profile of the first electrode signal and a profile of the second electrode signal.

Touch sensing device for determining information related to pen, control method therefor, and pen

A touch pad is provided. The touch pad includes a transparent piezoelectric film layer configured to generate an electrical signal varying according to a touch pressure, and an electrode layer including a plurality of transparent electrodes disposed in a plurality of areas of the transparent piezoelectric film layer and configured to sense a voltage of the electrical signal generated from the plurality of areas.

Touch pad and electronic apparatus using the same, and method of producing touch pad

A coordinate measurement device and method for hover sensing are disclosed. According to the present invention, the coordinate measurement device comprises: a channel electrode unit including a plurality of electrodes, wherein a capacitance of at least one of the plurality of electrodes variably changes by the approach of a contact object; a driving unit for applying a positive voltage to a first electrode group among the plurality of electrodes and applying a negative voltage to a second electrode group among the plurality of electrodes; a reception unit for receiving reception signals from a plurality of electrodes in the first electrode group and a plurality of electrodes in the second electrode group, respectively; and a processor for determining the position of the contact object on the basis of the received signals. Therefore, the coordinate measurement device can detect an accurate position of the contact object approaching the coordinate measurement device, through a conventional sensing element and circuit process.

Coordinate measurement device and method for hover sensing

Growing community of inventors

Suwon-si, South Korea

Chang-Byung Park