Digital vehicle microphone system and method
US6522754B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1998 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Aug 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R27/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to the present disclosure, a digital vehicle microphone system for recording and playback of announcements pertaining to vehicle stops and route information is provided for use over public address systems installed on public transportation vehicles. The system includes a microphone apparatus for digitally pre-recording the announcements. The microphone apparatus includes a microphone, a mute switch, a radio mode switch, a record switch and a record indicator. The system also includes a control circuit for recording and storing at least two separate announcements onto memory storage devices. The control circuit further includes a delayed playback feature for delayed playback of the announcements through the vehicle's public address system. The microphone apparatus further includes a “hands free” microphone including hand and foot actuated recording switches. The hand actuated record switch is used to record the vehicle's route information and the foot actuated record switch is used to record the vehicle's upcoming stop announcements. A method of operating a vehicle public address system is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.