Browse Prior Art Database

INTERACTIVE TOUCH-LIGHT STYLUS

IP.com Disclosure Number: IPCOM000009170D
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2002-Aug-12
Document File: 1 page(s) / 57K

Publishing Venue

Motorola

Related People

Sea Tee Yang: AUTHOR [+2]

Abstract

A stylus is widely used as an input tool for portable electronic devices with handwriting and touch interfaces. The stylus facilitates application of handwriting input user interface for touch screens of such portable electronic devices. Contact on the surface of the touch screens provides a pressure to trigger electrical signals. Typically, such a stylus is a separate piece of plastic molded material which can be retained with a slot disposed on a main hous- ing of a portable electronic device.

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MOTOROLA Technical Developments

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INTERACTIVE TOUCH-LIGHT STYLtiS

by Sea Tee Yang and Gao Qi

  A stylus is widely used as an input tool for portable electronic devices with handwriting and touch interfaces. The stylus facilitates application of handwriting input user interface for touch screens of such portable electronic devices. Contact on the surface of the touch screens provides a pressure to trigger electrical signals. Typically, such a stylus is a separate piece of plastic molded material which can be retained with a slot disposed on a main hous- ing of a portable electronic device.

  This article describes a stylus system that inte- grates a light source, an optical system and a retain- er. The stylus system provides an interactive feature to a touch screen of a portable electronic device to thereby enhance the application of a stylus.

  Referring to Figure 1; components of the stylus system includes circuitry for signal feedback and light control, a light source, an optical fiber and mechanical support. The optical fiber is embedded into the stylus as a light iguide and preferably pro- tected by the mechanical support for enhanced relia- bility. Protected as such!' the optical fiber also acts as a retainer or lanyard for the portable electronic device. Light signals in the stylus are triggered by signals from the touch screen. These light signals are then converted by the circuitry for light control to thereby control the light source. The optical fiber can be...