MUMBAI, India, Feb. 13 -- Intellectual Property India has published a patent application (202521134683 A) filed by National Institute Of Technology, Raipur, Chattisgarh, on Dec. 31, 2025, for 'non-invasive hall effect current sensing smart charging adapter system with auditory and haptic feedback for visually impaired users.'
Inventor(s) include Dr. Suman Kumar Saha.
The application for the patent was published on Feb. 13, under issue no. 07/2026.
According to the abstract released by the Intellectual Property India: "A non-invasive Hall effect current sensing smart charging adapter system (100) is disclosed for assisting visually impaired users during charging of a mobile phone. The system is housed in a portable adapter interposed inline between a standard charger and the phone, with an electrically continuous power conductor (15). A core-type Hall effect current sensing module (6) clamps around the power conductor without cutting the conductor and, with a pre-amplifier (7), offset/level shift circuit (8), low-pass filter (9), ADC buffer (10) and ADC (11), produces digital samples representative of charging current. A microcontroller subsystem (2) calibrates and filters the samples, classifies charging states (pre-charge, constant-current, constant-voltage, full-charge, disconnection), estimates state-of-charge percentage, and computes a battery health index. A user feedback subsystem (3) provides spoken messages via a voice feedback module (12) and speaker (14) and provides tactile vibration patterns via a haptic actuator (13). In preferred embodiments, an internal rechargeable power supply (16) powers the adapter electronics while maintaining isolation from the charging line."
Disclaimer: Curated by HT Syndication.
