Electro-active cradle circuits for the detection of access or penetration
US5353350A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1992 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Jun 2, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S257/922
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic circuit or device is protected from tamper and/or theft of data contained therein by encapsulation in a hosing and a polymer cradle. The cradle comprises a transducer capable of generating a voltage, detection means to detect said voltage, and protection means associated therewith to destroy and/or alter said circuit, device and/or information and/or record said voltage, characterized in that said transducer is a polymeric pressure/voltage and/or temperature/voltage transducer associated with said detection means such that on alteration of pressure or temperature applied to said transducer beyond pre-set limits, said voltage is sensed by said detection means thereby activating said protection means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.