Transaction chip incorporating a contact interface

US11669842B2 · kind B2 · utility

Assignee

• Block, Inc. · US

Inventors

• Afshin Rezayee · King City, CA
• Malcolm Smith · Toronto, CA
• Yue Yang · Chengdu, CN
• Jeremy Wade · San Francisco, US
• Max Guise · San Francisco, US
• Kamran Sharifi · Toronto, CA

Key dates

• Filing date: Jul 2, 2021
• Grant date: Jun 6, 2023
• Expiry date: Jul 2, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G07F7/0873
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

A transaction chip can exchange information with a chip card during a payment transaction. The transaction chip can incorporate a processing unit, a memory device, a contact interface and power and communication circuitry. The transaction chip can acquire payment information from the chip card when the EMV chip of the chip card is interfaced with the power and communication circuitry of the transaction chip via the contact interface. The transaction chip can also process the acquired payment information and transmit the processed payment information to a point-of-sale application of a merchant device via a wireless