# US 2013/0154989 A1 · System and method for touch screen

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- Number: US 2013/0154989 A1
- Document ID: US20130154989A1
- Status: Published application
- Kind: A1
- Application number: 13/818,968
- Filed: 2010-08-30
- Published: 2013-06-20
- Earliest claimed: 2010-08-30
- Assignees: Hewlett-Packard Development Company, L.P.
- Inventors: Robert Campbell
- Web page: https://patentgrep.com/patent/US20130154989A1

## CPC

- G06F 3/0416: {Control or interface arrangements specially adapted for digitisers}
- G06F 1/1601: {Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64)}
- G06F 3/041: Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F 3/0428: {by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual (sensing beam interruptions in a planar beam grid of an optical touch-screen G06F3/0421)}
- G06F 2203/04105: Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
- G06F 2203/04106: Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
- G06F 2203/04108: Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

An embodiment of the present invention provides a touch screen. The touch screen includes a touch detector configured to determine a location of an object proximate to a front surface of a screen, and a force detector configured to determine a force that the object places on the screen.

## Claims

### Claim 1

A touch input system, comprising:
a screen;
a stand attached to a case holding the screen;
a detector is configured to determine a location of an object proximate to the front surface of the screen; and
a force sensor disposed proximately to the stand, wherein the force sensor is configured to determine a force that the object places on the screen.

### Claim 2 (depends on 1)

The touch input system of claim 1, comprising an all-in-one computer.

### Claim 3 (depends on 1)

The touch input system of claim 1, comprising a monitor.

### Claim 4 (depends on 3)

The touch input system of claim 3, comprising a force sensor system configured to report the force to an external computer system.

### Claim 5 (depends on 3)

The touch input system of claim 3, comprising a signal system to report the location, the force, or both to the computer system.

### Claim 6 (depends on 5)

The touch input system of claim 5, wherein the signal system comprises a universal serial bus (USB) system.

### Claim 7 (depends on 1)

The touch screen system of claim 1, comprising:
a processor; and
a storage system comprising code configured to direct the processor to display an item on the screen at the location of the object.

### Claim 8 (depends on 7)

The touch screen system of claim 7, wherein the storage system comprises code configured to size the item based, at least in part, on the force applied to the screen.

### Claim 9 (depends on 7)

The touch screen system of claim 7, wherein the storage system comprises code configured to direct the processor to register a touch on the screen at the location of the object once a force is detected.

### Claim 10

A method for operating a touch screen system, comprising:
monitoring a touch detector to determine a location of an object proximate to a front surface of a screen; and
measuring a force that the object places on the screen by reading a force sensor in a stand supporting the touch screen system.

### Claim 11 (depends on 10)

The method of claim 10, comprising confirming that the object is touching the screen based, at least in part, on the force.

### Claim 12 (depends on 10)

The method of claim 10, comprising changing a feature of an item shown on the screen, based, at least in part, on the size, the location, or the force, or any combinations thereof.

### Claim 13 (depends on 12)

The method of claim 12, wherein the feature is a virtual brush size, a line size, a text size, or any combinations thereof.

### Claim 14 (depends on 12)

The method of claim 12, wherein the feature is an item on a layer selected based, at least in part, on the force applied to the screen.

### Claim 15 (depends on 10)

The method of claim 10, comprising changing an operation of a program, based, at least in part, on a size, the location, or the force, or any combinations thereof.