Acoustic-signal emitting device for vehicles
First Claim
1. An acoustic-signal emitting device (100) for vehicles, comprising an electronic control circuit (50) for generating driving signals and a loudspeaker (LDSK), the loudspeaker including:
- a transducer device (1) connected electrically to the electronic control circuit (50) in order to receive the driving signals and to convert them into acoustic radiation, the transducer device (1) being a moving-coil device with a compression chamber and having dimensions such that the transducer device generates acoustic radiation characteristic of an alarm siren in a first operative condition and acoustic radiation characteristic of an acoustic warning device in a second operative condition, and a twisted horn (2) coupled acoustically with the transducer device (1) in order to propagate the acoustic radiation emitted in the two operative conditions outside the emitting device (100).
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Accused Products
Abstract
An acoustic-signal emitting device for vehicles comprises an electronic control circuit (50) for generating driving signals and a loudspeaker (LDSK). The loudspeaker includes a transducer device (1) connected electrically to the electronic control circuit (50) in order to receive the driving signals and to convert them into acoustic radiation. The transducer device (1) being a moving-coil device with a compression chamber and having dimensions such that it can generate acoustic radiation characteristic of an alarm siren in a first operative condition and acoustic radiation characteristic of an acoustic warning device in a second operative condition. A twisted horn (2) is coupled acoustically with the transducer device (1) in order to propagate the acoustic radiation emitted in the two operative conditions, outside the emitting device (100).
38 Citations
30 Claims
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1. An acoustic-signal emitting device (100) for vehicles, comprising an electronic control circuit (50) for generating driving signals and a loudspeaker (LDSK), the loudspeaker including:
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a transducer device (1) connected electrically to the electronic control circuit (50) in order to receive the driving signals and to convert them into acoustic radiation, the transducer device (1) being a moving-coil device with a compression chamber and having dimensions such that the transducer device generates acoustic radiation characteristic of an alarm siren in a first operative condition and acoustic radiation characteristic of an acoustic warning device in a second operative condition, and a twisted horn (2) coupled acoustically with the transducer device (1) in order to propagate the acoustic radiation emitted in the two operative conditions outside the emitting device (100). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification