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Using Side Touch with Stylus

IP.com Disclosure Number: IPCOM000245800D
Publication Date: 2016-Apr-08
Document File: 2 page(s) / 92K

Publishing Venue

The IP.com Prior Art Database

Related People

Sushil Anand: INVENTOR [+2]

Abstract

Typically when someone is using a stylus to write on a phone, they are gripping the phone with one hand and then writing with the other. Grip rejection and detection of side finger touches can be used to ensure that there are no false side touches or normal touches. The information on whether the stylus has been used in combination with side touch can be sent to the host. Finally, the host can use this information to allow the user to do a variety of actions such as opening an application or taking a picture. In addition, stylus gestures, such as tap, double tap, and swipe, may be detected to perform certain actions.

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Using Side Touch with Stylus

1. Inventor(s): Sushil Anand and Kerry Chin


2. Synaptics Incorporated, San Jose, CA, USA


3. Short Summary

Side touch with a stylus to do an action on a device.


4. Some Problems Solved

Examples of some of the problems addressed by the invention include:

The advantage to using stylus with capacitive side touch on a device is that that people using stylus will probably be gripping their device, such as a smartphone, with their hands, and holding a stylus with their other hand. If a capacitive sensor can distinguish between stylus and finger, the stylus could perform alternative actions/shortcuts on the phone such as opening an application.


5. General Description

This invention does not require any extra work on the touch chip side. All the work can be done by the firmware and host side. Using the existing features of stylus and side touch, the two can be combined to create a new feature. In some embodiments, side touch is only used to detect normal finger response, but stylus detection can also be added. Stylus will naturally have a smaller response than a typical finger, so this can used to set thresholds and distinguish between stylus and finger.

Typically when someone is using a stylus to write on a phone, they are gripping the phone with one hand and then writing with the other. Grip rejection and detection of side finger touches can be used to ensure that there are no false side touches or normal touches. The information on whether the stylus has been used in combination with side touch can be sent to the host. Finally, the host can use this information to allow the user to do a variety of actions such as opening an application or taking a picture. In addition, stylus gestures, such as tap, double tap, and swipe, may be detected to perform c...