Acoustic warning system for motor-vehicle subsystem

Details Acoustic warning system for motor-vehicle subsystem Acoustic warning system for motor-vehicle subsystem

1998-06-24

2000-03-21

Lefkowitz, Edward

Communications: electrical

Land vehicle alarms or indicators

340426, 340573, 73646, 381 86, B60Q 100

Patent

active

060407611

ABSTRACT:
A motor vehicle having a remotely operable subsystem provided with an acoustic emitter has a system having a microphone on the vehicle, a signal processor connected to the microphone for determining an ambient sound level at the microphone, and a controller connected between the signal-processor and the acoustic emitter for controlling an output volume of the emitter in accordance with the determined ambient sound level at the microphone.

REFERENCES:
patent: 4342023 (1982-07-01), Tsunoda et al.
patent: 4641937 (1987-02-01), Suzuki
patent: 4809338 (1989-02-01), House
patent: 4904992 (1990-02-01), Grothause
patent: 5365219 (1994-11-01), Wong et al.
patent: 5471527 (1995-11-01), Ho et al.

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