公开(公告)号：EP0749108B1

公开(公告)日：2000-09-06

申请号：EP96108986.9

申请日：1996-06-05

申请人： MAGNETI MARELLI S.p.A.

发明人： Corino, Silvio ,  Cotignoli, Giuseppe ,  Mezzadri, Vittorio Antonio Domenico

IPC分类号： G10K11/178 ,  G10L15/06 ,  G01R33/385

CPC分类号： G10L15/063 ,  G01R33/3854 ,  G10K11/178 ,  G10K2210/12 ,  G10K2210/1282 ,  G10K2210/30232 ,  G10K2210/3029 ,  G10K2210/3033

摘要： The equipment (1) comprises first acoustic-electric transducers (2) for providing electrical signals indicative of the noise in a space in the motor vehicle, second electric-acoustic transducers (4), and an electronic unit (6) which, in a first operating mode, can pilot the second transducers (4) in dependence on the signals provided by the first (2) so as to cause the generation of pressure waves (anti-noise) which can cancel out the noise waves. The unit (6) can also selectively implement a second operating mode, alternative to the first, in which it pilots the second transducers (4) so as to cause the generation of pressure waves of predetermined characteristics in said space (3), it detects the signals correspondingly provided by the first transducers (2), it compares predetermined characteristics of these signals with those of reference signals or data previously stored, and it generates alarm and/or locking signals when the characteristics of the signals provided by the first transducers (2) differ from those of the reference signals or data so that, in the second operating mode, the equipment (1) operates as an alarm system against intrusions into said space (3).

公开(公告)号：EP0749108A1

公开(公告)日：1996-12-18

申请号：EP96108986.9

申请日：1996-06-05

申请人： MAGNETI MARELLI S.p.A.

发明人： Corino, Silvio ,  Cotignoli, Giuseppe ,  Mezzadri, Vittorio Antonio Domenico

IPC分类号： G10L3/02 ,  G01R33/385 ,  G10L3/00

CPC分类号： G10L15/063 ,  G01R33/3854 ,  G10K11/178 ,  G10K2210/12 ,  G10K2210/1282 ,  G10K2210/30232 ,  G10K2210/3029 ,  G10K2210/3033

摘要： The equipment (1) comprises

first acoustic-electric transducers (2) for providing electrical signals indicative of the noise in a space in the motor vehicle,
second electric-acoustic transducers (4), and
an electronic unit (6) which, in a first operating mode, can pilot the second transducers (4) in dependence on the signals provided by the first (2) so as to cause the generation of pressure waves (anti-noise) which can cancel out the noise waves.

The unit (6) can also selectively implement a second operating mode, alternative to the first, in which

it pilots the second transducers (4) so as to cause the generation of pressure waves of predetermined characteristics in said space (3),
it detects the signals correspondingly provided by the first transducers (2),
it compares predetermined characteristics of these signals with those of reference signals or data previously stored, and
it generates alarm and/or locking signals when the characteristics of the signals provided by the first transducers (2) differ from those of the reference signals or data so that, in the second operating mode, the equipment (1) operates as an alarm system against intrusions into said space (3).

摘要翻译： 设备（1）包括用于提供指示机动车辆中的空间中的噪声的电信号的第一声电传感器（2），第二电声换能器（4）和电子单元（6） 第一操作模式，可以根据由第一（2）提供的信号引导第二换能器（4），从而产生可抵消噪声波的压力波（抗噪声）。 单元（6）还可以选择性地实现第二操作模式，替代第一操作模式，其中它引导第二换能器（4），以便在所述空间（3）中产生预定特性的压力波，从而检测 由第一换能器（2）相应地提供的信号，它将这些信号的预定特性与预先存储的参考信号或数据的特性进行比较，并且当由第一换能器（2）提供的信号的特性时产生报警和/或锁定信号 2）与参考信号或数据不同，使得在第二操作模式中，设备（1）作为防止入侵到所述空间（3）的报警系统运行。