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Acoustic device

A technology of acoustic devices and sound output devices, which is applied in the direction of selection devices, sound channel transducers, and spatial/structural arrangements of loudspeakers, which can solve problems such as sound interference and difficulty in providing stereo effects, and achieve the effect of reducing sound interference

Inactive Publication Date: 2006-06-07
KYOCERA CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the casing of this portable electronic device is formed very small so as to reduce its size, two speakers are closely arranged on the casing, and the sound output holes for the speakers are also arranged very close, which has disadvantageously Acoustic interference, especially in the high-frequency vocal cords is prone to this, making it difficult to provide a stereo effect

Method used

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Embodiment Construction

[0017] Preferred embodiments of the present invention are described below with reference to the accompanying drawings.

[0018] figure 1 with figure 2 is an outline perspective view of an embodiment of a cellular phone as an example of the acoustic device according to the present invention. figure 1 shows the status of the cellular phone on, while the figure 2 shows its closed state.

[0019] The cellular phone 1 is equipped with a first housing 2 and a second housing 3 . The end 2a of the first housing 2 and the end 3a of the second housing 3 are rotationally coupled by a coupling unit (hinge unit) 4 so that the two housings can be opened and closed.

[0020] The first casing 2 and the second casing 3 are provided with front side casings 2c and 3c on their surface (front) sides, which face each other in a closed state, and rear side casings 2d and 3d on their back sides, respectively. Those positive side casings 2c and 3c are formed so that the other casing side can al...

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Abstract

The acoustic device can provide sound exhibiting stereophonic effects even in a compact housing, wherein, inside the first surface of the second housing, the sound output surface of the speaker, the front side cabinet, and the sound output surface of the speaker and the front side cabinet The inner walls formed between the shells define each sound guide space (sound resonance space) for each speaker, and in addition, are equipped with a first sound output hole for outputting high frequency vocal cord sound, and a second sound output hole for outputting middle frequency vocal cord sound and low frequency vocal cord sound. Two sound output holes, so that they can communicate with their respective sound guiding spaces (sound resonance spaces).

Description

technical field [0001] The present invention relates to an acoustic device such as a portable phone (cellular phone or mobile phone), a personal digital assistant (PDA), or a digital camera that has two speakers built in and can provide stereo sound. Background technique [0002] For example, Japanese Laid-Open Patent Publication (Kokai) No. 2004-32352 discloses a portable electronic device, such as a cellular phone, a PDA, or a digital camera, in which two speakers are equipped, and each speaker outputs an independent sound to form a stereo sound. . [0003] However, since the casing of this portable electronic device is formed very small so as to reduce its size, two speakers are closely arranged on the casing, and the sound output holes for the speakers are also arranged very close, which has disadvantageously Acoustic interference, especially in the high-frequency vocal cords, is prone to this situation, making it difficult to provide a stereo effect. Contents of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/03H04M1/62H04Q7/32
CPCH04M1/0214H04M1/035H04R5/02H04R2205/022H04R2499/11
Inventor 石田裕司
Owner KYOCERA CORP
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