Identification of desired clock rate for an externally-driven processing device
US10002268B1 · kind B1 · utility
10Cited by
5References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2017 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Jan 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/0873
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A device such as a payment terminal may connect to an externally-driven processing device such as an EMV chip of an EMV chip card, providing signals such as a clock signal to the EMV chip. The payment terminal may obtain information about the EMV chip card or a transaction, and based on that information, modify the clock rate of the clock signal that is provided to the EMV chip. The payment terminal may monitor the operation of the EMV chip at the modified clock rate, in order to determine whether the modified clock rate causes errors in the processing of the EMV chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.