Control and protection of loudspeakers

A loudspeaker and protection technology, applied to the remaining service life of the system, the implementation of predicting its service life, the field of nonlinear digital control and protection systems

Active Publication Date: 2015-11-25
CIRRUS LOGIC INT SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Additionally, product rework rates, often associated with failure and lifetime issues involving loudspeakers, are a major industry concern

Method used

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  • Control and protection of loudspeakers
  • Control and protection of loudspeakers
  • Control and protection of loudspeakers

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Embodiment Construction

[0090] Specific embodiments of the present disclosure are described below with reference to the accompanying drawings; however, the disclosed embodiments are merely examples of the present disclosure and may be embodied in various forms. Well-known functions and constructions are not described in detail to avoid obscuring the disclosure in unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and merely as a teaching method for one skilled in the art to variously embody the present disclosure in almost any suitably detailed structure. representative basis. Like reference numbers may refer to similar or identical elements throughout the description of the figures.

[0091] The term consumer electronic device is meant to include, but is not limited to, cellular phones (such as smartphones), tablets, notebooks, portable media players, televisions, portable game consol...

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Abstract

A nonlinear control system and a loudspeaker protection system. In particular, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream therefrom. An active loudspeaker with an integrated amplifier is disclosed. A loudspeaker protection system and a quality control system are disclosed. More particularly, a system for clamping the input to a loudspeaker dependent upon a bank of representative models is disclosed.

Description

technical field [0001] The present disclosure relates to digital control and protection of loudspeakers, and in particular to non-linear digital control and protection systems suitable for implementation in audio signal processing. The disclosure further relates to protection of speakers, earphones, headphones, and other electro-acoustic transducer systems, and embodiments for predicting their service life. The present disclosure further relates to systems and methods for predicting the remaining useful life of loudspeaker elements in use. Background technique [0002] Mobile technologies and consumer electronic devices (CEDs) continue to expand in application and scope throughout the world. While mobile technology and CED continue to grow, there are rapid technological advances in device hardware and components, resulting in increased computing power and incorporation of new peripheral on-board devices, as well as reductions in device size, power consumption, etc. Most de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCH04R3/007H04R3/002
Inventor 帕尔·贡纳斯·里斯贝里埃里克·林达尔马库斯·阿维德松丹尼尔·卡尔松兰迪·托特
Owner CIRRUS LOGIC INT SEMICON
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