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. 25, 2025
Filed:
Jun. 25, 2021
Block, Inc., San Francisco, CA (US);
Matthew Maibach, Berkeley, CA (US);
Abhishek Das, Mississauga, CA;
Yujia Zhang, San Carlos, CA (US);
Alice Wang, San Francisco, CA (US);
Eldon Rivers, San Francisco, CA (US);
Hayford Peprah, Toronto, CA;
Edward Tan, York, CA;
Stefan Filipek, Novi, MI (US);
Oscar Reparaz, Berkeley, CA (US);
Block, Inc., Oakland, CA (US);
Abstract
Techniques described herein enable wireless payment reader to transition between lower-power and higher-power states while still performing cryptographic operations for securing payment data without undue latency caused by the transition between sleep and awake power states. For instance, a wireless payment reader may store information associated with cryptographic operations performed by the wireless payment reader in persistent memory of the wireless payment reader so that this information may be retained when the wireless payment reader enters a low-power, sleep state. Thus, when the wireless payment reader awakens from the low-power state, the wireless payment reader may read the cryptographic information from the local persistent memory rather than needing to request this information from a payment service.