Invention Application
- Patent Title: MECHANISMS FOR DETECTING TAMPERING OF AN ELECTRONIC DEVICE
- Patent Title (中): 用于检测电子设备篡改的机制
-
Application No.: US12721211Application Date: 2010-03-10
-
Publication No.: US20110031985A1Publication Date: 2011-02-10
- Inventor: Timothy M. Johnson
- Applicant: Timothy M. Johnson
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Main IPC: G01R27/26
- IPC: G01R27/26
Abstract:
An electronic device has a chassis, and a printed wiring board (PWB) having a hole. A fastener is installed in the hole thereby securing the PWB to the chassis. A pair of conductive traces is formed in the PWB. A cap, being an amount of conductive glue, covers a part of the fastener and fills an electrically insulating gap between the two traces, to thereby form a conductive path that connects the two traces. A sensing circuit is coupled to the traces, to detect a change in impedance of the path and signal a tamper event alert. Other embodiments are also described and claimed.
Public/Granted literature
- US08278948B2 Mechanisms for detecting tampering of an electronic device Public/Granted day:2012-10-02
Information query
