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Renesas Electronics Corporation

Smart Pen

Overview

Description

This smart pen system records handwritten notes and stores them in a digital format, allowing users to easily access and manage their notes digitally. An infrared light-emitting diode (IR LED) illuminates the paper, while an LED sensor detects the reflected light to precisely track and record pen movement. By combining natural pen-and-paper writing with digital storage and connectivity, this design enables efficient and intuitive digital note-taking without changing the user's writing experience.

System Benefits​:

  • Precise handwriting capture is achieved using an IR LED for illumination and an LED sensor to track pen movement in real time.
  • Invisible IR operation preserves a natural writing experience, avoiding visual distractions while enabling continuous tracking.
  • Bluetooth® Low Energy (LE) enables wireless transfer of handwritten data from the pen to PCs, tablets, or mobile phones.
  • An integrated button supports audio recording and power control, providing enhanced usability.

Comparison

Applications

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