Touch panel system

• US 9,639,208 B2
• Filed: 01/30/2014
• Issued: 05/02/2017
• Est. Priority Date: 03/29/2013
• Status: Active Grant

• Current Assignee: Wacom Co Limited (Wacom)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Yumoto, Manabu, Nagasawa, Shunsuke, Yamaguchi, Masayuki
• Primary Examiner(s): Sasinowski, Andrew
• Assistant Examiner(s): Castiaux, Brent D
• Application Number:
  US14/779,804
• Publication Number:
  US 20160048265A1
• Time in Patent Office: 1,188 Days
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 2203/04808 Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment

Abstract

A touch panel system (1) includes a touch panel (3) and a touch position detecting section (5) for detecting a touch position on the touch panel (3). The touch position detecting section (5) includes a touch start determining section (56) for (i) setting a determining region based on a touch start position candidate which is a touch position that has been detected relatively earliest and (ii) determining that touches have been started from the touch start position candidate in a case where the touches whose starting point is at the touch start position candidate have been successively detected within the determining region a predetermined number of times or more.

Claims

1. A touch panel system comprising:

a touch panel; and

a touch position detecting section for detecting a touch position on the touch panel,

the touch position detecting section including;

a touch start determining section for (i) setting a determining region based on a touch start position candidate which is a touch position that has been detected relatively earliest and (ii) determining that touches have been started from the touch start position candidate in a case where the touches whose starting point is at the touch start position candidate have been successively detected within the determining region a predetermined number of times or more,

the touch start determining section setting the determining region so that an area of the determining region is proportional to at least two successive touches after the touch at the touch start position candidate.

2. The touch panel system as set forth in claim 1, wherein:

in a case where touches whose starting point is at the touch start position candidate have not been successively detected within the determining region the predetermined number of times or more, the touch start determining section does not output, as a touch, the touches whose starting point is at the touch start position candidate.

3. The touch panel system as set forth in any one of claim 1, wherein:

the touch start determining section sets the determining region based on at least one of a scanning cycle of the touch panel, an area of the touch panel, and the predetermined number of times.

4. The touch panel system as set forth claims 1, wherein:

the touch start determining section sets the determining region so that the determining region has a circular shape whose center is at the touch start position candidate.

5. The touch panel system as set forth in claim 2, wherein:

the touch start determining section sets the determining region based on at least one of a scanning cycle of the touch panel, an area of the touch panel, and the predetermined number of times.

6. The touch panel system as set forth in claim 2, wherein:

the touch start determining section sets the determining region so that the determining region has a circular shape whose center is at the touch start position candidate.

7. The touch panel system as set forth in claim 3, wherein:

the touch start determining section sets the determining region so that the determining region has a circular shape whose center is at the touch start position candidate.