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1. (WO2014208897) APPARATUS AND METHOD FOR DETECTING TOUCH
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/208897 International Application No.: PCT/KR2014/004694
Publication Date: 31.12.2014 International Filing Date: 27.05.2014
IPC:
G06F 3/044 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
041
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044
by capacitive means
Applicants: CRUCIALTEC CO., LTD.[KR/KR]; 20,Hoseo-ro 79beon-gil, Baebang-eup Asan-si Chungcheongnam-do 336-795, KR
Inventors: JEONG, Byung Chul; KR
KIM, Dong Woon; KR
Agent: HANA INTELLECTUAL PROPERTY LAW; HANA INTELLECTUAL PROPERTY LAW 6F, 52, Seochojungang-ro Seocho-gu Seoul 137-070, KR
Priority Data:
10-2013-007479827.06.2013KR
10-2013-007479927.06.2013KR
Title (EN) APPARATUS AND METHOD FOR DETECTING TOUCH
(FR) APPAREIL ET PROCÉDÉ DE DÉTECTION DE TOUCHER
(KO) 터치 검출 장치 및 방법
Abstract:
(EN) One embodiment of the present invention provides an apparatus for detecting a touch, the apparatus comprising: a sensor pad for forming touch capacitance in relation to a touch input tool; an operation amplifier for outputting different signals according to whether there is a touch on the sensor pad, the operation amplifier having a first input end connected to the sensor pad and a second input end receiving a reference voltage; a first switch for controlling potentials of both ends of driving capacitance connected between the first input end and an output end of the operation amplifier; a second switch for switching a connection between the sensor pad and the first input end, the second switch being turned on and off alternately with the first switch; and a parasitic capacitance compensation circuit for supplying an electric charge to at least one of the touch capacitance and parasitic capacitance that shares a charge amount of the touch capacitance when the second switch is in an on state.
(FR) La présente invention, selon un mode de réalisation, concerne un appareil de détection de toucher, l'appareil comprenant : un pavé capteur de formation de capacité de toucher en liaison avec un outil d'entrée de toucher ; un amplificateur opérationnel destiné à sortir différents signaux conformément au fait que le pavé capteur fait, ou non, l'objet d'un toucher, l'amplificateur opérationnel comportant une première extrémité d'entrée connectée au pavé capteur et une seconde extrémité d'entrée recevant une tension de référence ; un premier commutateur destiné à commander les potentiels des deux extrémités de capacité de commande connectée entre la première extrémité d'entrée et une extrémité de sortie de l'amplificateur opérationnel ; un second commutateur destiné à commuter une connexion entre le pavé capteur et la première extrémité d'entrée, le second commutateur étant en alternance mis en et hors circuit avec le premier commutateur ; et un circuit de compensation de capacité parasite destiné à délivrer une charge électrique à la capacité de toucher et/ou la capacité parasite qui partage une quantité de charge de la capacité de toucher lorsque le second commutateur est en circuit.
(KO) 본 발명의 일 실시예에 따르면, 터치 입력 도구와의 관계에서 터치 정전용량을 형성하는 센서패드; 상기 센서패드와 연결된 제1 입력단 및 기준전압을 수신하는 제2 입력단을 가지며, 상기 센서패드에의 터치 여부에 따라 서로 다른 신호를 출력하는 연산 증폭기; 상기 제1 입력단과 상기 연산 증폭기의 출력단 사이에 연결된 구동 정전용량 양단의 전위를 제어하는 제1 스위치; 상기 제1 스위치와 교번하여 온-오프(ON-OFF)되며, 상기 센서패드와 상기 제1 입력단 간의 연결을 스위칭하는 제2 스위치; 및 상기 제2 스위치가 온(ON) 상태일 때 상기 터치 정전용량 또는 상기 터치 정전용량의 전하량을 공유하는 기생 정전용량 중 적어도 하나에 전하를 공급하는 기생 정전용량 보상 회로를 포함하는, 터치 검출 장치가 제공된다.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)