Identification criteria of icon infringement: 1. The act of using an icon identical with or similar to a registered trademark on the same commodity or similar commodity without the permission of the icon registrant is also called infringement. The second is the act of selling goods that infringe the exclusive right to use registered icons, that is, icon infringement in the circulation field, also known as sales infringement. 3. The act of forging or making other people's registered icon marks without authorization or selling forged or made registered icon marks without authorization is also called icon mark infringement. Fourth, the act of changing the registered icon without the consent of the icon registrant and putting the goods with changed trademarks into the market is called reverse counterfeiting abroad. Fifth, the act of causing other damage to the exclusive right of others to register icons.

Baidu (English name: Baidu, Inc Baidu Collection _ Co., Ltd.) is an Internet company mainly engaged in search engine services. It was founded by Li Yanhong and Xu Yong in Zhongguancun, Beijing on June 30th, 2000. "Baidu" originated from a sentence by Xin Qiji, a poet in the Southern Song Dynasty, which described the poet's persistent pursuit of ideals. The company's business scope covers search, artificial intelligence, cloud computing, big data and other aspects, and it is one of the top three Internet companies in China.