公开(公告)号：EP2491480A4

公开(公告)日：2014-07-30

申请号：EP10825283

申请日：2010-10-13

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  BRYBORN KRUS MATTIAS ,  WASSVIK OLA ,  FÅHRAEUS CHRISTER ,  WALL HENRIK

IPC: G06F3/042 ,  G06F3/041

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

公开(公告)号：SE534244C2

公开(公告)日：2011-06-14

申请号：SE0901145

申请日：2009-09-02

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

公开(公告)号：SE0802531A1

公开(公告)日：2010-06-06

申请号：SE0802531

申请日：2008-12-05

Applicant: FLATFROG LAB AB

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

IPC: G06F3/042

公开(公告)号：AU2009272921A1

公开(公告)日：2010-01-21

申请号：AU2009272921

申请日：2009-06-22

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  WASSVIK OLA

IPC: G06F3/042

Abstract: An apparatus is controlled to detect locations of a plurality of objects on a touch surface of a panel. An input scanner arrangement introduces at least three beams of radiation into the panel for propagation by internal reflection, and sweeps the beams inside the panel across a sensing area, preferably in at least two different principal directions. At least one radiation detector is arranged to receive the beams from the input scanner arrangement while they are swept across the sensing area. A data processor is connected to the radiation detector(s) and operated to identify the locations based on an attenuation of the beams caused by the objects touching the touch surface within the sensing area, the attenuation being identifiable from an output signal of the radiation detector(s). Each output signal may be further processed to generate a transmission signal, by dividing the output signal by a background signal which represents the output signal without any object on the touch surface.

公开(公告)号：SE0901145A1

公开(公告)日：2011-03-03

申请号：SE0901145

申请日：2009-09-02

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

公开(公告)号：SE533704C2

公开(公告)日：2010-12-07

申请号：SE0802531

申请日：2008-12-05

Applicant: FLATFROG LAB AB

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

IPC: G06F3/042

公开(公告)号：CA2728030A1

公开(公告)日：2010-01-21

申请号：CA2728030

申请日：2009-06-22

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

Abstract: An apparatus is controlled to detect locations of a plurality of objects on a touch surface of a panel (1). An input scanner arrangement introduces at least three beams (B1- B6) of radiation into the panel (1) for propagation by internal reflection, and sweeps the beams (B1-B6) inside the panel across a sensing area, preferably in at least two different principal directions (R1, R2). At least one radiation detector is arranged to receive the beams (B1-B6) from the input scanner arrangement while they are swept across the sensing area. A data processor is connected to the radiation detector(s) and operated to identify the locations based on an attenuation of the beams (B1-B6) caused by the objects touching the touch surface within the sensing area, the attenuation being identifiable from an output signal of the radiation detector(s). Each output signal may be further processed to generate a transmission signal, by dividing the output signal by a background signal which represents the output signal without any object on the touch surface.

公开(公告)号：CA2772830A1

公开(公告)日：2011-03-10

申请号：CA2772830

申请日：2010-09-01

Applicant: FLATFROG LAB AB

Inventor： CHRISTIANSSON TOMAS ,  WASSVIK OLA

IPC: G06F3/042

Abstract: A touch-sensitive system comprises a light transmissive panel (1) defining a touch surface and an opposite surface; an illumination arrangement (3) comprising emitters (2) configured to introduce light into the panel (1) for propagation in the panel (1) in an emission pattern; a light detection arrangement (5) comprising detectors (4) configured to receive the light propagating in the panel (1). A control unit (6) is arranged to control the operation of the touch-sensitive system. The control unit (6) executes a control method to monitor the light received in the light detecting arrangement (5) for detection of touches on the touch surface, the touches attenuating the light propagating in the panel (1). The control method also selects a mode for the emission pattern in dependence of the occurrence of touches on the touch surface and controls the emission pattern in accordance with the selected mode.

公开(公告)号：CA2728034A1

公开(公告)日：2010-01-21

申请号：CA2728034

申请日：2009-06-22

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

Abstract: An apparatus is operated to determine the location of at least one object on a touch surface of a light transmissive panel (1). In the apparatus, an illumination arrangement introduces radiation into the panel (1) for propagation by internal reflection between the touch surface and the opposite surface, so as to generate a grid of intersecting radiation paths in a sensing area, and a detection arrangement measures the transmitted energy in the radiation paths. A data processor (8) then determines, based on the transmitted energy, the location based on an attenuation of two or more radiation paths caused by the object (01) touching the touch surface within the sensing area. In the apparatus, the illumination arrangement generates at least a subset of the radiation paths by sweeping at least one beam (B1, B2) of radiation along the touch surface. The detection arrangement comprises a fixed re-directing device (12A, 12B) which receives and re-directs the beam (B1, B2) onto a common detection point (D1, D2) while the beam (B1, B2) is swept along the touch surface, and a radiation detector (RD1, RD2) which is located at the common detection point (D1, D2) to measure the energy of the beam(s) (B1, B2).

公开(公告)号：AU2009272923A1

公开(公告)日：2010-01-21

申请号：AU2009272923

申请日：2009-06-22

Applicant: FLATFROG LAB AB

Inventor： WASSVIK OLA ,  CHRISTIANSSON TOMAS

IPC: G06F3/042

Abstract: An apparatus is operated to determine the location of at least one object on a touch surface of a light transmissive panel. In the apparatus, an illumination arrangement introduces radiation into the panel for propagation by internal reflection between the touch surface and the opposite surface, so as to generate a grid of intersecting radiation paths in a sensing area, and a detection arrangement measures the transmitted energy in the radiation paths. A data processor then determines, based on the transmitted energy, the location based on an attenuation of two or more radiation paths caused by the object touching the touch surface within the sensing area. In the apparatus, the illumination arrangement generates at least a subset of the radiation paths by sweeping at least one beam of radiation along the touch surface. The detection arrangement comprises a fixed re-directing device which receives and re-directs the beam onto a common detection point while the beam is swept along the touch surface, and a radiation detector which is located at the common detection point to measure the energy of the beam(s).