Stmicroelectronics Asia Pacific Pte Limited

Leonard Dinu

Kien Beng Tan

Dianbo Guo

Chee Weng Cheong

Praveesh Chandran

Giuseppe Noviello

Chaochao Zhang

Baranidharan Karuppusamy

An active stylus is capacitively coupled to a capacitive touch panel for communication. The active stylus operates in a wait mode to receive initial communications from the panel. In response to such receipt, the active stylus synchronizes to a repeating communications frame implementing time division multiplexing. Communications from the active stylus to the panel include: information communications; synchronization communications and communications specific for columns and/or rows of the panel. Communications from the panel to the active stylus may be addressed uniquely to the stylus or commonly to a group of styluses.

System and method of communication between a capacitive touch screen and an active stylus

Growing community of inventors

Dolj, Romania

Leonard Dinu