Imaging device, imaging cartridge, and verification method
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United States of America Patent
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May 10, 2016
Grant Date -
Sep 10, 2015
app pub date -
Mar 4, 2015
filing date -
Mar 4, 2014
priority date (Note) -
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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.
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