MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202541087228 A) filed by Dr. Devendiran V, Vellore, Tamil Nadu, on Sept. 13, for 'assistive pen system for real-time handwriting correction using motion sensors and machine learning.'
Inventor(s) include Dr. Devendiran V.
The application for the patent was published on Nov. 21, under issue no. 47/2025.
According to the abstract released by the Intellectual Property India: "An assistive pen system for real-time handwriting correction is disclosed, designed to aid individuals with Specific Learning Disabilities (SLDs) such as dyslexia and dysgraphia. The system includes a writing instrument equipped with an inertial motion sensor (e.g., a six-axis sensor comprising a three-axis accelerometer and a three-axis gyroscope) to capture acceleration and angular velocity data during handwriting strokes. A processing unit analyzes the motion data using a machine learning module, such as a bidirectional long short-term memory (Bi-LSTM) neural network, to predict handwritten letters and compare them to predetermined target letter formations. Upon detecting deviations, the system provides immediate multisensory feedback through a vibration motor for haptic cues, a user interface module for visual feedback, and optionally an audio output device for auditory guidance. This real-time corrective feedback enhances handwriting accuracy and confidence, making the system suitable for educational and therapeutic applications."
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