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:
Mar. 27, 2018
Filed:
Nov. 16, 2016
Maxim Integrated Products, Inc., San Jose, CA (US);
Cheng-Hsien Hung, Dallas, TX (US);
Shiau Chwun George Pwu, Frisco, TX (US);
Thomas Michael Maguire, Plano, TX (US);
Haiyu Huang, Dallas, TX (US);
Maxim Integrated Products, Inc., San Jose, CA (US);
Abstract
An adaptive dual mode card emulation system (in Card Emulation Mode or PICC design) within an NFC device is disclosed to solve the strong field power delivering issue and also achieve longer communication range. The NFC device may be a NFC tag or an electronic device (such as a smartphone) operated in a card emulation mode. The NFC device comprises an antenna used for wireless communication. The adaptive dual mode card emulation system comprises a passive load modulation (PLM) module, an active load modulation (ALM) module and an automatic power control (APC) module. The APC module couples to both the ALM and PLM modules and selectably enables the ALM or PLM module depending on the strength of received carrier signal sent from an NFC reader.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile