US 12,468,803 B2
Control circuit unit, electromagnetic detection method and digital circuit design method
Rui-Chang Huang, Miaoli (TW)
Assigned to PHISON ELECTRONICS CORP., Miaoli (TW)
Filed by PHISON ELECTRONICS CORP., Miaoli (TW)
Filed on Jan. 23, 2024, as Appl. No. 18/420,743.
Claims priority of application No. 113100478 (TW), filed on Jan. 4, 2024.
Prior Publication US 2025/0225235 A1, Jul. 10, 2025
Int. Cl. G06F 21/55 (2013.01)
CPC G06F 21/554 (2013.01) [G06F 2221/034 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A control circuit unit for detecting an electromagnetic attack, comprising:
one or more target circuit units;
a plurality of detection circuit units respectively disposed in a plurality of local areas of a target area within the control circuit unit, wherein the target area encompasses the one or more target circuit units, wherein the plurality of detection circuit units are disposed to send a first signal in response to a determination of receiving the electromagnetic attack;
a plurality of local counters respectively corresponding to the plurality of local areas, wherein the plurality of local counters are coupled to the plurality of detection circuit units belonging to the corresponding local areas, and update the number of recorded localized attacks in response to receiving the first signal, wherein the number of the localized attack reflects a total number of the electromagnetic attack on the corresponding local area;
a global counter corresponding to the target area and coupled to the plurality of local counters, and accumulating the number of the localized attacks to update the number of recorded globalized attacks, wherein the number of the globalized attacks reflects a total number of the electromagnetic attack on the target area; and
a management circuit unit coupled to the global counter and the plurality of local counters, wherein the management circuit unit issues a warning notification based on the number of the globalized attacks and the number of the localized attacks.