Analog and digital speed display device
US5136516A · kind A · utility
27Cited by
9References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1989 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Dec 28, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K35/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An analog and digital display device for use with railroad vehicles which comprises: a host processor which transmits operational data received from a digital overspeed controller (DOC), such as actual speed, allowable speed, profile speed, distance to profile, messages and an indication of overspeed; a central processing unit (CPU) which receives and interprets operational data transmitted by the host processor; and an analog and digital display which displays the operational data in both analog and digital formats.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.