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Touch pad operable with multi-objects and method of operating same

a multi-object, touch pad technology, applied in the field of touch pads, can solve the problem of not being able to operate the touch pad or touch panel with only one finger,

Inactive Publication Date: 2009-07-23
ELAN MICROELECTRONICS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventionally, by simply touching the surface of the touch sensing interface with a finger, the user can make selections and move a cursor Nowadays, with increasing demand of using the touch sensing interface as a control unit, operating the touch pads or touch panels with only one finger is not satisfied.
Although the iPhone interface makes it easy to zoom in or out of images by spreading two fingers farther apart or closer together, there are still some drawbacks.

Method used

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  • Touch pad operable with multi-objects and method of operating same
  • Touch pad operable with multi-objects and method of operating same
  • Touch pad operable with multi-objects and method of operating same

Examples

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Embodiment Construction

[0030]The present invention will now be described more specifically with reference to the following embodiments. It is to be noted that the following descriptions of preferred embodiments of this invention are presented herein for purpose of illustration and description only. It is not intended to be exhaustive or to be limited to the precise form disclosed.

[0031]Hereinafter, an embodiment of operating a touch pad according to a first preferred embodiment of the present invention will be illustrated with reference to the flowchart of FIG. 1 and the two-dimensional coordinate diagrams of FIGS. 2A˜2D.

[0032]When a first object (e.g. a first finger F1) is placed on a touch position of the touch pad 10 (Step A1), the coordinate of the touch point is detected so as to assert a first position coordinate (X1, Y1), as is shown in FIG. 2A and Step A2 of FIG. 1.

[0033]Next, as shown in FIG. 2B and Step A3 of FIG. 1, when a second object (e.g. a second finger F2) is placed on another touch point...

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Abstract

The present invention provides a touch pad operable with multi-objects and a method of operating such a touch pad. The touch pad includes a touch structure for sensing touch points of a first and a second object and a controller for generating corresponding touching signals and related position coordinates. Moreover, the controller calculates at least two movement amount indexes according to coordinate differences between these position coordinates, thereby generating a movement amount control signal to control behaviors of a software object.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority under 35 U.S.C. § 119 to Taiwan Patent Application No. 097102211, filed on Jan. 21, 2008, in the Taiwan Intellectual Property Office, the entire contents of which are hereby incorporated by reference.FIELD OF THE INVENTION[0002]The present invention relates to a touch pad, and more particularly to a touch pad operable with multi-objects. The present invention also relates to a method of operating such a touch pad.BACKGROUND OF THE INVENTION[0003]Nowadays, consumable electronic products with touch pads or touch panels are becoming increasingly popular because of their ease and versatility of operation. A representative electronic product with a touch panel is for example an iPhone, which is a mobile phone designed and marketed by Apple Inc. For helping the user well operate the electronic products, the touch sensing interfaces of the electronic products are developed in views of humanization and user-friendl...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F3/041
CPCG06F3/04845G06F2203/04808G06F3/04883G06F3/04855
Inventor YANG, WEI-WENLIU, CHUH-MINCHENG, CHIEN-WEI
Owner ELAN MICROELECTRONICS CORPORATION
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