Tone code identification system
US4999621A · kind A · utility
19Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1989 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Jul 27, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/88
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A tone code identification system identifies a stolen computer every time the same is turned on. Police, on recovering a stolen computer, can call a central registry and transmit the tone code to reveal the identity of the rightful owner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.