| 摘要 |
An illegal use prevention method of a pattern band of an embroidery machine, a computerized embroidery machine using a pattern band has a unique private key and a public key, the private key is stored in an electronic control device of the computerized embroidery machine in an encrypted manner, and the public key along with the machine is provided to a user; the computerized embroidery machine user provides the unique public key to a pattern band owner. The pattern band owner writes the pattern band into production restriction data and uses the public key to encrypt and send to the computerized embroidery machine user. The computerized embroidery machine user reads the pattern band to a designated machine after receiving the encrypted pattern band data; the electronic control device of the computerized embroidery machine performs embroidery by use of the private key after decrypting the pattern band. The designed pattern band cannot be illegally and freely copied and used, and the using times corresponding to the authorization price can be set in an authorized legal using process. |
