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:
May. 23, 2017
Filed:
Aug. 19, 2011
Viktor Kremin, Lviv, UA;
Roman Ogirko, Lviv, UA;
Oleksandr Pirogov, Lviv, UA;
Andriy Ryshtun, Lviv, UA;
Darrin Vallis, San Jose, CA (US);
Viktor Kremin, Lviv, UA;
Roman Ogirko, Lviv, UA;
Oleksandr Pirogov, Lviv, UA;
Andriy Ryshtun, Lviv, UA;
Darrin Vallis, San Jose, CA (US);
PARADE TECHNOLOGIES, LTD., Santa Clara, CA (US);
Abstract
A system comprising a sensing device and a capacitive sense array configured to detect a presence of a passive touch object and a stylus where the capacitive sense array receives a transmit signal from the stylus via capacitive coupling. The system further comprising a processing device configured to determine the stylus location on the capacitive sense array based on the transmit signal and to synchronize the stylus to the capacitive sense array. A system further comprises a demodulation block to extract additional data that is modulated into the transmit signal by the stylus. The demodulation block is configured to extract the additional data by amplitude shift keying. The additional data comprises at least one of an applied force value of the stylus tip, a button status data, a battery status data, or a stylus acceleration data.