Electronic horn for trains
US10399582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2016 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jan 17, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L25/021
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electronic horn for a train includes a microcontroller and a horn configured to provide an audible output sound, the microcontroller configured to provide one or more signals to the horn indicative of a desired audible output sound from the horn. The microcontroller is configured to vary an intensity of the audible output sound from the horn as a function of a speed of the vehicle. The microcontroller is also configured to vary an intensity of the audible output sound from the horn as a function of a period of time within a calendar. Also, the horn includes a horn body and a compression driver, the horn body being mechanically connected with the compression driver. A feedback loop circuit includes the microcontroller and the compression driver, the feedback loop circuit being configured to control an intensity of the audible output sound from the horn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.