The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2017
Filed:
Aug. 18, 2014
Stmicroelectronics Asia Pacific Pte Ltd, Singapore, SG;
Praveesh Chandran, Singapore, SG;
Baranidharan Karuppusamy, Singapore, SG;
Giuseppe Noviello, Singapore, SG;
Chee Weng Cheong, Singapore, SG;
Leonard Dinu, Dolj, RO;
Dianbo Guo, Singapore, SG;
Kien Beng Tan, Singapore, SG;
Chaochao Zhang, Singapore, SG;
STMICROELECTRONICS ASIA PACIFIC PTE LTD, Singapore, SG;
Abstract
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.