Wireless Device With Touch-Based Stylus

摘要

Often times, a touch-sensitive area of a touch-screen of a communication device is touched by a finger or a hand of a user. In some instances, a touch-based stylus of the present disclosure is available to the user. The user touches the touch-sensitive area of the communication device with the touch-based stylus. The communication device induces a current within the touch-based stylus. This induced current causes a voltage to accumulate within the passive object when touched by the user. This accumulated voltage transfers to the touch-sensitive area when the touch-based stylus touches the touch-sensitive area of the communication device. Thereafter, the communication device compares signal metrics of various regions of the touch-sensitive area to detect an instance and/or a location of the touch from the touch-based stylus.

主权项

1. A communication device, comprising:
a communication module configured to provide an excitation signal to cause a touch-based stylus to resonate; a touch-screen, having a touch-sensitive area, configured to receive a first interface signal at a first region within the touch-sensitive area and a second interface signal at a second region within the touch-sensitive area when the touch-based stylus is resonating; and a touch-screen controller configured to compare a first signal metric of the first received interface signal and a second signal metric of the second received interface signal to determine a location of the touch-based stylus.