Audio apparatus for vehicle
US4558460A · kind A · utility
58Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1984 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Jun 12, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62J45/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An audio apparatus for a vehicle is disclosed having an audio signal generator, an amplifier operatively connected to the generator for amplifying an audio signal received from the generator, a speaker for emitting sounds and which is driven by the amplifier, a vehicle speed detector, and a gain control operatively connected to the speed detector for generating a control signal and providing it to the amplifier, such that the control signal increases the gain of the amplifier according to an increase in the output of the vehicle speed detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.