US 11,900,196 B2
Radio frequency identification integrated circuit for reducing pin counts and rfid providing method thereof
Hsin Chou Lee, Zhubei (TW); Li Sheng Lo, Hsinchu (TW); and Hsien-Yao Li, Hsinchu (TW)
Assigned to GENERALPLUS TECHNOLOGY INC., Hsinchu (TW)
Filed by GENERALPLUS TECHNOLOGY INC., Hsinchu (TW)
Filed on Aug. 24, 2021, as Appl. No. 17/410,537.
Claims priority of application No. 109129492 (TW), filed on Aug. 28, 2020.
Prior Publication US 2022/0067472 A1, Mar. 3, 2022
Int. Cl. G06K 19/07 (2006.01)
CPC G06K 19/0723 (2013.01) 16 Claims
OG exemplary drawing
 
1. A radio frequency identification integrated circuit for reducing pin counts, adapted for RFID circuit, wherein the RFID circuit at least comprises a resonant coil and a resonant capacitor, wherein the radio frequency identification integrated circuit for reducing pin counts comprises:
a first input/output pin;
a second input/output pin; and
a third input/output pin,
wherein, when the radio frequency identification integrated circuit is enabled, it is respectively determined whether the first input/output pin, the second input/output pin and the third input/output pin are coupled to a resonant coil,
wherein ID of the radio frequency identification integrated circuit for reducing pin counts is determined according to the voltage states of the first input/output pin, the second input/output pin and the third input/output pin which are respectively coupled to the resonant coil or not.