Imaging device, imaging cartridge, and verification method
US9335695B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2015 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Mar 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/1892
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An imaging device, an imaging cartridge, and a verification method are disclosed. The method comprises storing a first slave address of the imaging cartridge and configuring a first indexing rule in the imaging device. The method further comprises: an indexing step, including sending an indexing command to the imaging cartridge, generating a predicated address for the imaging cartridge based on the first indexing rule and the indexing command, and updating the first slave address of the imaging cartridge based on the predicated address; and a verification step, including judging whether a second slave address of the imaging cartridge is correct according to answer data sent by the imaging cartridge, or according to the answer data sent by the imaging cartridge as well as the first slave address of the imaging cartridge. The answer data comprise indexing feedback data that include the second slave address of the imaging cartridge, or response data with respect to an addressing command that includes the first slave address of the imaging cartridge. A counterfeit imaging cartridge which steals a slave address via the bus can be verified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.