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A speaker apparatus in a wireless communication device

A technology for wireless communication equipment and speakers, applied in the field of wireless communication equipment, sound quality enhancement, and computer programs for sound quality enhancement, can solve problems such as reducing sound quality, achieve sound quality enhancement, save important space, and improve bass response. Effect

Inactive Publication Date: 2008-06-25
NOKIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, it is a known fact that a small movable diaphragm element requires greater movement to keep the sound pressure level high enough
In turn, greater movement reduces acceptable sound quality

Method used

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  • A speaker apparatus in a wireless communication device
  • A speaker apparatus in a wireless communication device
  • A speaker apparatus in a wireless communication device

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Embodiment Construction

[0024] Headphone speaker with subwoofer as hands-free speaker

[0025] In various embodiments, the general principle related to headphones as subwoofers as hands-free speakers is to use the back volume for the headphone speaker, as opposed to conventional Reflex tube. Close to Helmholtz resonance, speaker membrane displacement is very small, and low-end performance can thus be increased to sustain the main speakers without overloading the headphone speakers.

[0026] A further embodiment of FIG. 1 shows a headphone speaker 101 configured to boost an IHF speaker 102 as a subwoofer. Alternatively, the earphone speaker 101 may be referred to as an earphone transducer or simply as an earphone.

[0027] A further embodiment shows an example of how the sound quality can be made better by using the headphone speaker 101 as a subwoofer for the IHF 102, eg wider bass response and / or sound level generation of a single IHF speaker. Preferably, the basic characteristics of the headset ...

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PUM

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Abstract

In the invention there is being combined the back cavities of two speakers so that one speaker (102) is used as a general speaker and the other one (101) provides a boosting effect to the general speaker. For example, the other speaker (101) can act as a subwoofer to the general speaker (102). The back cavity (104) of the speaker (101) is extended by a tubular cavity (103). The tubular cavity (103) can extend to either the front or back panel of the mobile phone, thereby boosting the other speaker (102) located at the respective panel.

Description

technical field [0001] The present invention relates to a loudspeaker arrangement, and further to a wireless communication device comprising a loudspeaker arrangement. The invention still further relates to a method for enhancing sound quality. The invention still further relates to a computer program for enhancing sound quality. Background technique [0002] Portable handheld devices such as mobile phones include speaker arrangements. Acoustic audio technology plays an important role for the user of this device. A mobile phone may have a headset speaker and an integrated hands-free (IHF) speaker. The headphone speaker and the IHF speaker are basically driven relatively independently of each other. Possibilities to achieve good and clear speaker volume are limited. Therefore, the sound quality of the mobile phone may be poor. For example, bass or treble response may be compromised, and it may not be good enough. Also, sound distortion from the environment can be a dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/28H04M1/03H04R1/02H04R
CPCH04M1/035H04R1/2842
Inventor A·弗克斯特罗姆L·M·卡尔克凯南T·阿维凯南
Owner NOKIA CORP