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1. WO2010028139 - CURVED SURFACE INPUT DEVICE WITH NORMALIZED CAPACITIVE SENSING

Publication Number WO/2010/028139
Publication Date 11.03.2010
International Application No. PCT/US2009/055875
International Filing Date 03.09.2009
IPC
H03K 17/96 2006.1
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and -breaking
94characterised by the way in which the control signals are generated
96Touch switches
G06F 3/033 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input 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
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
033Pointing devices displaced or positioned by the user; Accessories therefor
CPC
G06F 3/03547
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input 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
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
033Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
0354with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
03547Touch pads, in which fingers can move on a surface
H03K 17/9622
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and –breaking
94characterised by the way in which the control signals are generated
96Touch switches
962Capacitive touch switches
9622using a plurality of detectors, e.g. keyboard
H03K 2217/96031
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
2217Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
94characterised by the way in which the control signal is generated
96Touch switches
96031Combination of touch switch and LC display
H03K 2217/96066
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
2217Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
94characterised by the way in which the control signal is generated
96Touch switches
96066Thumbwheel, potentiometer, scrollbar or slider simulation by touch switch
H03K 2217/960725
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
2217Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
94characterised by the way in which the control signal is generated
96Touch switches
9607Capacitive touch switches
96071characterised by the detection principle
960725Charge-transfer
H03K 2217/960755
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
2217Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
94characterised by the way in which the control signal is generated
96Touch switches
9607Capacitive touch switches
960755Constructional details of capacitive touch and proximity switches
Applicants
  • APPLE INC. [US]/[US] (AllExceptUS)
  • FISHER, Joseph [US]/[US] (UsOnly)
  • KOCALAR, Erturk [TR]/[US] (UsOnly)
Inventors
  • FISHER, Joseph
  • KOCALAR, Erturk
Agents
  • CHARTOVE, Alex
Priority Data
12/205,77005.09.2008US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CURVED SURFACE INPUT DEVICE WITH NORMALIZED CAPACITIVE SENSING
(FR) DISPOSITIF D'ENTRÉE À SURFACE INCURVÉE AVEC DÉTECTION CAPACITIVE NORMALISÉE
Abstract
(EN) A curved surface input device with normalized capacitive sensing is disclosed. The input device can normalize capacitive sensing through an overlay having a varying thickness, such as an overlay with a curved surface. The capacitive sensing normalization can be implemented in software, hardware or a combination of software and hardware. A software implementation for normalizing capacitive sensing can comprise adjusting the sensitivity of a sensing operation associated with different sensor elements of the input device. A hardware implementation for normalizing capacitive sensing can comprise adjusting a hardware configuration of the input device associated with one or more physical parameters that can influence the capacitive sensitivity of the sensor elements, such as an area of the sensor elements, a distance between the sensor elements and other conductive input device elements (such as a ground plane), and a dielectric constant associated with the overlay.
(FR) L'invention porte sur un dispositif d'entrée de surface incurvée avec détection capacitive normalisée. Le dispositif d'entrée peut normaliser une détection capacitive par un recouvrement ayant une épaisseur variable, tel qu'un recouvrement avec une surface incurvée. La normalisation de détection capacitive peut être mise en œuvre dans un logiciel, un matériel ou une combinaison de logiciel et de matériel. Une mise en œuvre par logiciel pour normaliser une détection capacitive peut comprendre l'ajustement de la sensibilité d'une opération de détection associée à différents éléments détecteurs du dispositif d'entrée. Une mise en œuvre par matériel pour normaliser une détection capacitive peut comprendre l'ajustement d'une configuration matérielle du dispositif d'entrée associé à un ou plusieurs paramètres physiques qui peuvent influencer la sensibilité capacitive des éléments détecteurs, telle qu'une aire des éléments détecteurs, une distance entre les éléments détecteurs et d'autres éléments de dispositif d'entrée conducteurs (tels qu'un plan de sol), et une constante diélectrique associée au recouvrement.
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