Replaceable item authentication
US9770915B1 · kind B1 · utility
6Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2017 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0094
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A replaceable item for a host device includes a non-volatile memory and logic. The non-volatile memory stores passwords or authentication values, and/or a cryptographic key. The logic satisfactorily responds to requests for passwords a maximum permitted number of times to authenticate the replaceable item within the host device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.