Method for the creation of an electronic signal box replacing an existing signal box
US9783215B2 · kind B2 · utility
0Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2010 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Dec 6, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L2019/065
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
According to one aspect of the invention, the circuit logic of an existing relay interlocking system is mapped onto a functionally equivalent circuit of electronic components. Semiconductor components that are functionally identical to the components of the relay circuit are thus preferably used. The circuit logic is created, for example, by transforming an interlocking table or track diagram into a logic circuit by means of an automatic compiler according to predefined rules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.