Patent · US Active

Secure mechanism for finite provisioning of an integrated circuit

US10289872B2 · kind B2 · utility

0Cited by

1References

17Claims

0Family size

Assignee

MENTOR GRAPHICS CORPORATION · US

Inventors

Joseph P. Skudlarek · Lake Oswego, US
Eugene M. Kishinevsky · Hillsboro, US
Michael Chen · Tainan, TW

Key dates

Filing date	May 11, 2016
Grant date	May 14, 2019
Priority date	—
Expiry date	Feb 4, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/10
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

This application discloses an electronic system including active circuitry configured to be selectively enabled for authorized number of times. The electronic system also includes security circuitry to detect an enablement event associated with the electronic system. The enablement event can correspond to reception of a reset signal associated with the electronic system, a lapse of a predetermined time period, or the like. In response to the detection of the enablement event, the security circuitry can determine a number of times the security circuitry has previously enabled the active circuitry. The security circuitry can generate the enablement signals capable of enabling the active circuitry when the determined number of times the security circuitry has previously enabled the active circuitry is fewer than the authorized number of times.

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