Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PEN INPUT DEVICE COMPRISING CAPACITOR CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2019/212212
Kind Code:
A1
Abstract:
Embodiments disclosed in the present document relate to a pen input device comprising a variable capacitor circuit. An electronic device (100) according to various embodiments of the present invention comprises: a housing (110) including an opening (121) and an internal space connected to the opening (121); a first battery (350) in the housing (110); and a pen input device (120) formed to be inserted in the internal space through the opening (121), wherein the pen input device (120) comprises a coil (423), a variable capacitor circuit (540) and a control circuit, and the control circuit can be configured to apply a first signal to the coil when the pen input device is present in the internal space, sense a second signal outputted from the coil as a result of the application of the first signal, and change the variable capacitor circuit on the basis of at least a part of the second signal.

Inventors:
CHO, Yonglak (129 Samsung-ro, Yeongtong-guSuwon-si, Gyeonggi-do, 16677, KR)
KIM, Sungjun (129 Samsung-ro, Yeongtong-guSuwon-si, Gyeonggi-do, 16677, KR)
Application Number:
KR2019/005144
Publication Date:
November 07, 2019
Filing Date:
April 29, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SAMSUNG ELECTRONICS CO., LTD. (129 Samsung-ro, Yeongtong-guSuwon-si, Gyeonggi-do, 16677, KR)
International Classes:
G06F3/0354; G06F3/038; H02J7/00
Domestic Patent References:
WO2013165466A12013-11-07
Foreign References:
KR20160023163A2016-03-03
KR20160088655A2016-07-26
KR20140035726A2014-03-24
US20180101272A12018-04-12
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (Mihwa Bldg, 16 Daehak-ro 9-gil,Chongro-gu, Seoul, 03079, KR)
Download PDF: