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Electrodynamic transducer in ultrasonic mode

A transducer, ultrasonic technology, used in proximity sensor systems, mobile phones

Inactive Publication Date: 2017-11-28
SOUND SOLUTIONS INTERNATIONAL COMPANY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the components required for all the new features and capabilities require more and more space within the phone housing

Method used

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  • Electrodynamic transducer in ultrasonic mode
  • Electrodynamic transducer in ultrasonic mode
  • Electrodynamic transducer in ultrasonic mode

Examples

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Embodiment Construction

[0043]Different embodiments of different devices are described herein. Numerous specific details are set forth to provide a thorough understanding of the overall structure, function, manufacture and use of the embodiments described in the specification and illustrated in the drawings. However, it will be understood by those skilled in the art that these embodiments may be practiced without these specific details. In other instances, well-known operations, components and elements have not been described in detail so as not to obscure the embodiments described in the specification. Those of ordinary skill in the art will understand that the embodiments described and illustrated herein are non-limiting examples, and therefore it can be appreciated that the specific structural and functional details disclosed herein may be representative and do not necessarily limit the scope of the embodiments, The scope of the embodiments is limited only by the appended claims.

[0044] Refere...

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PUM

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Abstract

An electrodynamic transducer having a coil, a membrane, and a plate is disclosed, wherein the transducer is adapted to generate a sound pressure level in the human-audible acoustic range and the ultrasonic range so that the transducer may be used as a speaker and an ultrasonic proximity sensor. The transducer may be adapted to generate a sound pressure level above about 88 dB between 20 kHz and 70 kHz. Additionally, the transducer may be adapted to generate a sound pressure level of between about 90 dB and 95 dB between 20 kHz and 70 kHz. The plate may include a structural rigidity increasing feature such as a domed portion or a population of ribs, which may increase the generated sound pressure level in the ultrasonic range. The transducer may also include a front resonator which may be used to further tune and / or increase the generated sound pressure level in the ultrasonic range.

Description

technical field [0001] The present invention relates to electrodynamic transducers, in particular transducers used as loudspeakers and capable of sound transmission in the audible and ultrasonic frequency ranges. The invention also relates to a proximity sensor system utilizing a loudspeaker capable of sound transmission in the audible and ultrasonic frequency ranges and a microphone capable of receiving speech signals and ultrasonic frequency signals. The invention also relates to a mobile phone comprising such a proximity sensor. Background technique [0002] Although mobile phones have become smaller and / or thinner in size, the demand for more features and capabilities has increased. However, the components required for all the new features and capabilities require more and more space within the phone housing. The industry wishes to shrink the size of the space required for various components. In some cases, the functions of two or more components have been combined in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R1/28H04R7/04
CPCH04R1/2803H04R7/04H04R9/06H04R2499/11H04R7/18H04R9/025H04R31/003H04R31/006
Inventor C·伦巴赫F·瑞宁M·富洛克A·泰美尔C·克劳保夫H·鲍尔S·桑格尔A·辛藤纳切
Owner SOUND SOLUTIONS INTERNATIONAL COMPANY LTD
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