Sound reproduction device, method for adapting a sound reproduction device, diving goggles, and communication device

• US 10,547,958 B2
• Filed: 04/26/2018
• Issued: 01/28/2020
• Est. Priority Date: 10/30/2015
• Status: Active Grant

• Current Assignee: Peiker Acustic GmbH & Co. KG
• Original Assignee: Peiker Acustic GmbH & Co. KG
• Inventors: Klose, Michael
• Primary Examiner(s): Kim, Paul
• Application Number:
  US15/963,127
• Publication Number:
  US 20180343530A1
• Time in Patent Office: 642 Days
• Field of Search: 381 59
• CPC Class Codes: B63C 11/12 Diving masks
• CPC Class Codes: B63C 11/26 Communication means, e.g. means for signalling the presence of diverselectric communication in general H04
• CPC Class Codes: G01R 27/16 Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
• CPC Class Codes: H04B 11/00 Transmission systems employing sonic, ultrasonic or infrasonic waves
• CPC Class Codes: H04B 13/02 Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
• CPC Class Codes: H04R 29/001 for loudspeakers H04R29/007 takes precedence
• CPC Class Codes: H04R 7/04 Plane diaphragms

Abstract

The invention relates to a sound reproduction device which comprises a signal source, a power source, an amplifier, and a loudspeaker. The sound reproduction device further comprises an impedance measuring device and an analysis device. The impedance measuring device is connected to loudspeaker leads of the loudspeaker in order to measure impedance values, and the impedance measuring device is connected to the analysis device in order to forward the measurement results. The analysis device is also connected to the signal source and/or to the amplifier in order to adapt a signal fed to the loudspeaker.

Claims

1. A method for adapting a sound reproduction device, which comprises a signal source, a power source, an amplifier and a loudspeaker, to different environmental media such as air and water,

wherein by means of an impedance measuring device a measurement of at least one impedance value of the loudspeaker is performed,

wherein a measurement result is forwarded to an analysis device,

wherein from the measurement result the medium, in which the loudspeaker is located, is determined by the analysis device,

wherein at least one of the signal source or the amplifier is controlled by the analysis device in such a manner that at least one of reproduction volume or frequency response is adapted to the detected medium in such a way that regardless of the medium in which the loudspeaker is operated, a consistent listening experience is ensured for a user.

2. The method as claimed in claim 1, wherein the at least one impedance value is measured by the impedance measuring device continuously, or the at least one impedance value is measured by the impedance measuring device at intervals, or the at least one impedance value is measured by the impedance measuring device in an event-driven manner.

3. The method as claimed in claim 1, wherein the measurement of the at least one impedance value by the impedance measuring device is performed in a region of a resonance of the loudspeaker.

4. The method as claimed in claim 1, wherein a test signal is generated by a tone generator of the sound reproduction device and transmitted to the loudspeaker, and at the same time the measurement of the at least one impedance value is carried out with the impedance measuring device.

5. The method as claimed in claim 4, wherein the test signal is generated during a communication pause.

6. The method as claimed in claim 4, wherein the test signal is generated in a frequency range which is not perceptible by the user.