公开(公告)号：EP2712435A4

公开(公告)日：2015-03-18

申请号：EP12785105

申请日：2012-05-14

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  JUHLIN PETER ,  WALLANDER MATS PETTER ,  WASSVIK OLA

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0418 ,  G06F3/0421 ,  G06F2203/04109

公开(公告)号：EP2433204A4

公开(公告)日：2014-07-23

申请号：EP10778006

申请日：2010-05-14

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/0421 ,  G06F3/0418 ,  G06F2203/04109

公开(公告)号：EP2936221A4

公开(公告)日：2016-08-31

申请号：EP13865732

申请日：2013-12-17

Applicant: FLATFROG LAB AB

Inventor： CRAVEN-BARTLE THOMAS ,  BERGSTRÖM HÅKAN ,  KARLSSON IVAN ,  WASSVIK OLA ,  SERNELIUS DAVID

IPC: G06F3/042 ,  F21V8/00 ,  G02B5/00 ,  G02B6/00

CPC classification number: G06F3/0421 ,  G02B5/00 ,  G02B5/005 ,  G02B6/0038 ,  G02B6/0053 ,  G06F3/0416 ,  G06F2203/04103 ,  G06F2203/04109

公开(公告)号：EP2473906A4

公开(公告)日：2014-01-15

申请号：EP10814031

申请日：2010-09-01

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  WASSVIK OLA

IPC: G06F3/042 ,  G06F1/32

CPC classification number: G06F3/0421 ,  G06F1/3262 ,  G06F2203/04109

公开(公告)号：EP2212763A4

公开(公告)日：2012-06-20

申请号：EP08837005

申请日：2008-10-10

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA

IPC: G06F3/042

CPC classification number: G06F3/0423 ,  G06F3/0418 ,  G06F2203/04109

公开(公告)号：EP2370884A4

公开(公告)日：2012-05-23

申请号：EP09830665

申请日：2009-12-02

Applicant: FLATFROG LAB AB

Inventor： FAAHRAEUS CHRISTER ,  WALL HENRIK ,  WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

CPC classification number: G06F3/0325 ,  G06F3/0421 ,  G06F3/0428 ,  G06F2203/04104 ,  G06F2203/04109

公开(公告)号：EP2588942A4

公开(公告)日：2017-01-25

申请号：EP11801248

申请日：2011-06-29

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  WASSVIK OLA ,  FÅHRAEUS CHRISTER

IPC: G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/041 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/04883 ,  G06F2203/04104 ,  G06F2203/04808

Abstract: A device obtains a signal representative of objects on a touch surface of a multi-touch sensing apparatus and executes a method for extracting touch data from the signal. The method operates in a sequence of detection frames. Each detection frame comprises the steps of: obtaining (300) the signal; processing (301) the signal for identifying touches; determining (302) a set of identified touches and touch data for the set of identified touches; and outputting (303) the touch data. At least one of the steps of processing (301) and determining (302) includes a prioritization that actively favors certain touches to be identified and included in the set of identified touches, respectively. Temporal prioritization favors a touch that corresponds to a previous touch, which is identified in one or more preceding detection frames. Spatial prioritization favors a touch that is located within at least one predefined subarea on the touch surface. The and prioritization enables the touch data to be generated in way that is predictable, consistent and in accordance with user expectations within a general or specific context.

公开(公告)号：EP2473905A4

公开(公告)日：2014-07-09

申请号：EP10814030

申请日：2010-09-01

Applicant: FLATFROG LAB AB

Inventor： FÅHRAEUS CHRISTER ,  CHRISTIANSSON TOMAS ,  WALL HENRIK ,  WASSVIK OLA

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/0418 ,  G06F2203/04109

Abstract: An apparatus, method and computer-readable medium for determining a location of at least one object on a touch surface of a light transmissive panel. The method comprises the steps of: introducing light into the panel for propagation by internal reflection between the touch surface and an opposite surface; receiving the light propagating in the panel; and iteratively i) determining a current signal profile of light received by the light detection arrangement, ii) updating, when a condition is met, a background signal profile of light received by the light detection arrangement, iii) calculating a current compensated signal profile as a function of the background signal profile and the current signal profile and iv) determining, when the object touches the touch surface and thereby attenuates the light propagating in the panel, the location as a function of the compensated signal profile.

公开(公告)号：EP2356551A4

公开(公告)日：2012-05-02

申请号：EP09826361

申请日：2009-11-12

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/042 ,  G02B6/429 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/0428 ,  G06F2203/04109