Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-04-10
2007-04-10
Nguyen, Tai (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S568100, C340S568600, C340S571000, C257S679000, C257S922000
Reexamination Certificate
active
10911176
ABSTRACT:
The present invention provides an apparatus and method for detecting if a person has attempted to tamper with an integrated circuit (IC). The apparatus is located on the IC and comprises detection circuitry that detects a build up of electrical charge on the IC and disablement circuitry that disables the IC when the detection circuitry detects a build up of electrical charge on the IC. The method comprises detecting if a build up of electrical charge on the IC has occurred and disabling the IC when a build up of electrical charge on the IC has been detected.
REFERENCES:
patent: 5353350 (1994-10-01), Unsworth et al.
patent: 2001/0033012 (2001-10-01), Kommerling et al.
Azimi Kouros
Berthoud Charles W.
Cargo James T.
Hooghan Kultaransingh N.
McLellan Scott W.
Agere Systems Inc.
Nguyen Tai
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