Nanjing elderly anti-peeping keyboard is willing to provide the patent free of charge

Enter your password on a bank ATM machine or a mall POS machine. Under the eyes of the public, are you worried about being spied on and your password leaked? Nanjing citizen Li Boolei did not mind. At the scene, it can be seen that Li Boolet, a 60-year-old retired employee of the Radio and Television Bureau of Jiangsu Province, entered 12 digits on the anti-peeping password input keyboard designed by him and then removed the bezel on the computer screen and only showed 9 digits. Why is that?

Originally, Lee Booley designed a small button on the back of the coded keyboard to control the power of the number key. When the left hand quietly presses the small button, the key input of the right hand is actually invalid, and the input is valid only when the left hand releases the small button. In this way, with the quiet cooperation of the left hand, the entered numbers will become true or false, even if people stare at the keyboard input, it is impossible to know the valid password you entered. "If there is a bank or business in Chongqing, I can offer this patent free of charge," Lee Burr said.