US Patent Issued to STMICROELECTRONICS (CHINA) INVESTMENT on May 20 for "System and method for distinguishing between active and passive NFC devices" (Chinese Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,898, issued on May 20, was assigned to STMICROELECTRONICS (CHINA) INVESTMENT Co. LTD (Shanghai).

"System and method for distinguishing between active and passive NFC devices" was invented by Tianhao Xiong (Shanghai) and Gang Wu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A near field communication (NFC) reader detects whether NFC devices are passive NFC devices or active NFC devices. The NFC reader outputs an interrogation signal and a carrier signal. When the NFC reader receives a response signal from an NFC device responsive to the interrogation signal, the NFC reader interrupts the carrier signal before the end of the response signal...