Patents by Inventor Yen-Yi Wei

Yen-Yi Wei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Detecting device for a cash drawer and a point of sales system
    Patent number: 8224701
    Abstract: A detecting device for a cash drawer is used for detecting a status of the cash drawer. The detecting device includes an operation logic circuit and a switch element. The operation logic circuit has a first input terminal, a second input terminal and an output terminal. The first input terminal and the second input terminal are respectively coupled with a micro switch. The first input terminal and the second input terminal are respectively inputted with a high level voltage. When the first input terminal and the second input terminal have the same logic voltage levels, the operation logic circuit outputs a first logic level to the output terminal. When the first input terminal and the second input terminal have different logic voltage levels, the operation logic circuit outputs a second logic level to the output terminal. The switch element is coupled between an electromagnetic switch and the first input terminal.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: July 17, 2012
    Assignees: Universal Scientific Industrial (Shanghai) Co., Ltd., Universal Global Scientific Industrial Co., Ltd.
    Inventors: Yu-Feng Chien, Yen-Yi Wei, Yi-Ming Lin, Meng-Yuan Tsai
  • Detecting device for a cash drawer and a point of sales system
    Publication number: 20090299866
    Abstract: A detecting device for a cash drawer is used for detecting a status of the cash drawer. The detecting device includes an operation logic circuit and a switch element. The operation logic circuit has a first input terminal, a second input terminal and an output terminal. The first input terminal and the second input terminal are respectively coupled with a micro switch. The first input terminal and the second input terminal are respectively inputted with a high level voltage. When the first input terminal and the second input terminal have the same logic voltage levels, the operation logic circuit outputs a first logic level to the output terminal. When the first input terminal and the second input terminal have different logic voltage levels, the operation logic circuit outputs a second logic level to the output terminal. The switch element is coupled between an electromagnetic switch and the first input terminal.
    Type: Application
    Filed: June 2, 2008
    Publication date: December 3, 2009
    Inventors: Yu-Feng Chien, Yen-Yi Wei, Yi-Ming Lin, Meng-Yuan Tsai