Patent · US Active

Devices with removable smart cards

US11815975B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

Nordic Semiconductor ASA · NO

Inventors

Hannu Talvitie · Oulu, FI
Marko Winblad · Trondheim, NO
Veli-Pekka Junttila · Oulu, FI

Key dates

Filing date	Mar 22, 2019
Grant date	Nov 14, 2023
Priority date	—
Expiry date	Jun 27, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02D30/70
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method of controlling an electronic device including a memory and a removable smart card. The method involves the device sending a request for context data to the smart card. The smart card sends context data to the device in response to the request and stores this data in the memory and power to the smart card is reduced. Power to the smart card is then increased or restored, and the data is written back to the smart card.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.