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Consumable chip and a communication method thereof, and system and method for communication between consumable chip and imaging device

A technology of consumable chips and imaging equipment, applied in transmission systems, printing, instruments, etc., can solve the problems of complex authentication process and long calculation time, and achieve the effect of simple encrypted communication

Active Publication Date: 2018-11-16
HANGZHOU CHIPJET TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The authentication is realized through the interaction between the printer and the consumable chip. Although the problem of reverse analysis of the communication waveform is solved, the authentication process is complicated and the calculation time is long.

Method used

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  • Consumable chip and a communication method thereof, and system and method for communication between consumable chip and imaging device

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Embodiment Construction

[0097] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0098] An existing imaging system includes an imaging device and consumables that can be installed in the imaging device. The consumables are capable of being installed in the imaging device to provide imaging materials for the imaging device, and can be replaced after the imaging material is exhausted. For example, inkjet cartridges or inkjet cartridges with inkjet and printhead assemblies, toner cartridges, ink supply cartridges, and the like. The consumables include a consumable container and a consumable chip mounted on the consumable container. The communication and interaction between the consumable and the imaging device is realized through the consumable chip and the imaging device.

[0099] Generally, after the ...

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Abstract

The invention, which belongs to the technical field of printer consumables, provides a consumable chip and a communication method thereof, and a system and method for communication between a consumable chip and an imaging device. The communication method comprises: command encrypted data sent by an imaging device are decrypted and restored into command data; command processing is carried out basedon the command data and command feedback data are generated; and the command feedback data are encrypted to generate command feedback encrypted data and the command feedback encrypted data are sent to the imaging device, wherein the command feedback encrypted data are decrypted in the imaging device to restore the command feedback data. The consumable chip comprises a decryption unit for carryingout decryption and restoration on command encrypted data sent by an imaging device, an execution chip for carrying out command processing based on the command data and generating command feedback data, and an encryption unit for encrypting the command feedback data, generating command feedback encrypted data, and sending the command feedback encrypted data to the imaging device. The encrypted communication is simple; and a phenomenon of cracking the communication data by reverse analysis of the communication waveform is avoided.

Description

technical field [0001] The invention relates to the technical field of printer consumables, in particular to a consumable chip and a communication method thereof, a communication system and method between the consumable chip and an imaging device. Background technique [0002] At present, consumables generally use consumable chips as a medium for information and consumption of consumables. The consumable chip and the imaging device are connected through interfaces such as I2C and single wire. During the working process of the imaging device, there is communication between the consumable chip and the imaging device. During the use of consumables, consumable chips and imaging devices need to communicate and authenticate interactively. The existing authentication process uses encrypted data and encrypted algorithms, such as a method for encrypting, decrypting and rewriting an external data storage disclosed in the invention patent CN200710027429.X. The encryption method compr...

Claims

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Application Information

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IPC IPC(8): B41J2/175G06F21/71G06F21/60H04L29/06
CPCB41J2/17543B41J2/17546G06F21/602G06F21/71H04L63/0428H04L63/0876
Inventor 王敏郭伟欣孙云
Owner HANGZHOU CHIPJET TECH
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