US 11,669,842 B2
Transaction chip incorporating a contact interface
Afshin Rezayee, Richmond Hill (CA); Malcolm Smith, Toronto (CA); Yue Yang, Toronto (CA); Jeremy Wade, San Francisco, CA (US); Max Guise, San Francisco, CA (US); and Kamran Sharifi, Toronto (CA)
Assigned to Block, Inc., Oakland, CA (US)
Filed by Block, Inc., San Francisco, CA (US)
Filed on Jul. 2, 2021, as Appl. No. 17/366,891.
Application 16/810,700 is a division of application No. 15/439,685, filed on Feb. 22, 2017, granted, now 10,621,590, issued on Apr. 14, 2020.
Application 17/366,891 is a continuation of application No. 16/810,700, filed on Mar. 5, 2020, granted, now 11,113,698.
Prior Publication US 2021/0334807 A1, Oct. 28, 2021
Int. Cl. G06Q 20/40 (2012.01); G06Q 20/10 (2012.01); G06Q 20/34 (2012.01)
CPC G06Q 20/409 (2013.01) [G06Q 20/102 (2013.01); G06Q 20/341 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A transaction chip to exchange information with a chip card, the transaction chip comprising:
a processing unit;
at least one memory device connected to the processing unit, the at least one memory device including computer readable instructions;
a contact interface connected to the processing unit, the contact interface comprising a plurality of pins, wherein the plurality of pins includes an input/output pin, a power supply pin, a reset pin, a clock pin, a ground pin, and a programming voltage pin;
power and communication circuitry connected to the plurality of pins, the power and communication circuitry configured to interface with an EMV chip of the chip card;
the processing unit, the at least one memory device, the contact interface and the power and communication circuitry being incorporated in the transaction chip;
a wireless interface connected to the processing unit, the wireless interface comprising circuitry to interface with a wireless communication device; and
the computer readable instructions, when interpreted by the processing unit, cause the processing unit to:
acquire payment information from the chip card when the EMV chip is interfaced with the power and communication circuitry;
process the acquired payment information; and
transmit the processed payment information to a point-of-sale application of a merchant device via the wireless communication device.