Consumable chip, consumable and consumable communication method
AssigneeHangzhou Chipjet Technology Co., Ltd.
InventorsZhiye Chen, Zhengdong Zhang
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Abstract
The present invention relates to the technical field of printer consumables, and particularly relates to a consumable chip, a consumable and a consumable communication method. A session key for communication authentication is determined based on a communication session chip count which is selected by the consumable chip and stored in a storage device. The calculation process of the communication session chip count is avoided, thereby increasing the response speed of the consumable chip for a read request of an imaging device, and reducing the error rate.
Claims13
A consumable chip, comprising:
- a communication circuit for receiving a communication session chip count request of an imaging device,
- a storage circuit for storing consumable information and a plurality of communication session chip counts, and
- a logic circuit for generating a consumable session key based on one of the communication session chip counts,
- wherein the consumable chip selects one of the plurality of communication session chip counts stored in the storage circuit and supplies the selected one of the plurality of communication session chip counts to the imaging device in response to the communication session chip count request, and generates and stores the consumable session key based on the selected one of the plurality of communication session chip counts by means of the logic circuit.
A consumable, comprising:
- a consumable chip for storing consumable information and a plurality of communication session chip counts, and
- a communication link for communicating the consumable chip with an imaging device when the consumable is mounted on the imaging device,
- wherein the consumable chip receives a communication session chip count request of the imaging device by means of the communication link;
- and
- the consumable chip selects one of the plurality of communication session chip counts stored therein and supplies the selected on of the plurality of communication session chip counts to the imaging device in response to the communication session chip count request, and generates and stores a consumable session key based on the selected communication session chip count.
A consumable communication method, comprising:
- Sc-1, receiving a communication session chip count request from an imaging device;
- and
- Sc-2, selecting one of a plurality of communication session chip counts stored in the consumable chip and supplying the selected one of the plurality of communication session chip counts to the imaging device in response to the communication session chip count request, and generating and storing a consumable session key based on the selected one of the plurality of communication session chip counts.
Dependencies are inferred from the claim text.