Detecting device for a cash drawer and a point of sales system
US8224701B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 2, 2008 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Mar 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07G3/006
- WIPO fieldControl
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.