Patent · US Active

Radio transmitter apparatus with cryptographic engine

US12177341B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

Nordic Semiconductor ASA · NO

Inventors

Marko Winblad · Trondheim, NO
Hannu Talvitie · Oulu, FI

Key dates

Filing date	Mar 9, 2021
Grant date	Dec 24, 2024
Priority date	—
Expiry date	Feb 1, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/80
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

An integrated-circuit radio transmitter chip comprises a transmitter, a cryptographic engine and control circuitry for the cryptographic engine. The cryptographic engine performs a cryptographic operation by receiving input data, performing a first process to generate first result data and a second process to generate second result data. The first and second result data are used to generate output data. In response to determining that the transmitter is active, the control circuity controls the cryptographic engine to perform the first process and prevents the cryptographic engine from performing the second process while the transmitter is active. The control circuitry controls the cryptographic engine to perform the second process in response to determining that the transmitter is not active.

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