CN1549551A - Structural configuration for radio communication apparatus - Google Patents
Structural configuration for radio communication apparatus Download PDFInfo
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- CN1549551A CN1549551A CNA031234380A CN03123438A CN1549551A CN 1549551 A CN1549551 A CN 1549551A CN A031234380 A CNA031234380 A CN A031234380A CN 03123438 A CN03123438 A CN 03123438A CN 1549551 A CN1549551 A CN 1549551A
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- microphone
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- antenna radiator
- shell
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Abstract
A device cosists of a multisound microphone placed in resonant cavity related to antenna radiator and an acoustic mouth placed in wall of cavity chamber for limit resonant cavity. The said antenna radiator has a hole being able to align with the said acoustic mouth in order to let at least a partial microphone pass through hole of antenna radiator. Acoustic absorption media is lined in cavity chamber for absorbing undesirable high and low frequency sound signal sent out from microphone to provide hi-fi sound for listener.
Description
Technical field
The present invention relates to the structural arrangements of wireless device, it can make the actual size of this class device reduce to minimum.The present invention be more particularly directed to, but be not limited to, a kind of radio telecommunication device with the difunctional resonant cavity that is used for antenna and multitone microphone.
Background technology
In recent years, the use of Pertable raido communication device increases very fast.Along with the growth of this use, people wish to operate these devices easily and easily.Because Pertable raido communication device has become more ripe aspect functional, so claimed apparatus is lighter and compacter so that carry more easily simultaneously for the user.Therefore, the manufacturer of Pertable raido communication device is faced with and promptly wants the compact requirement that increases function again.
Function in the current Pertable raido communication device of seeking is to transmit the ability of musical sound and voice.In general, the less microphone of sensitivity that frequency range enough produces the only suitable voice playback of multitone microphone ratio of hi-fi music playback has bigger actual size, and up to now, proved already that it was very difficult that this class multitone microphone is effectively packed in a kind of shell of radio telecommunication device of compactness.
In a kind of typical prior art radio telecommunication device, the bottom of shell is divided into three zones, a resonant cavity that is used for antenna, a chamber and a zone of laying big electronic component of laying battery, as sim card socket, vibrator leads to upward various circuit elements of printed circuit board (PCB) (PCB) with providing, as earphone, and the electrical outlets assembly of the connector of external power source etc.In these prior-art devices, each resonant cavity that is used for antenna and microphone is separated, normally in the opposite two ends of crust of the device.Owing to antenna is placed the sensitivity that can seriously reduce antenna near the position of electronic component, so general way is not place any other element in the antenna resonance chamber.This need again with the multitone microphone be arranged on crust of the device opposite end place by in the occupied zone of big electronic component, reduce and to require the expansion instrument shell in addition a kind of compromise so that provide a tone chamber that separates that it is sought between working in the best condition to the multitone words in the hope of microphone sound performance in this environment.
United States Patent (USP) 6,239,765 have described a kind of cellular phone with a kind of asymmetric dipolar antenna, and above-mentioned antenna is set up in the zone that the other end in the enclosure do not occupy in addition by other electron component.
United States Patent (USP) 6,448,936 have introduced a kind ofly for the reconfigurable resonant cavity that uses with the flute profile radiator, and wherein the effective dimensions of resonant cavity can change selectively.
United States Patent (USP) 6,493,456 have described a kind of confession is contained in the thin microphone assembly of cellular phone in renovating.Invention described in this patent manages to overcome frequency response distribution problem bad in the very important frequency range of voice communication, especially, if user's ear is not being pasted basically in case the problem that leak-stopping sound is produced in the surface of renovating.It is said tuning resonant cavity volume by means of the first and second selected frequency ranges, and the sound dampening of the resonator volume that obtains of the cloth by selected covering speaking terminal, the voice response that in about 300-3400Hz scope, is improved.
Summary of the invention
According to an aspect of the present invention, provide a kind of radio communications set that comprises the multitone microphone, said apparatus comprises:
A shell, this shell has a resonant cavity relevant with antenna radiator, described resonant cavity has a multitone microphone that is arranged at wherein, and this multitone microphone is communicated by letter with a speaking terminal, and above-mentioned speaking terminal runs through a wall and hole of aiming at of above-mentioned shell in above-mentioned antenna radiator.
Described resonant cavity can comprise the chamber of above-mentioned shell one end of vicinity.
If necessary, described chamber can be arranged on the rear portion of above-mentioned shell.
Above-mentioned microphone is preferably disposed in the groove shaped installed part, and described installed part stretches in the above-mentioned chamber.
Suitable is that above-mentioned chamber comprises two and microphone 14 equidistant high frequency sound absorbing elements.
Above-mentioned chamber preferably includes a low frequency absorption element that covers the microphone rear surface.
If necessary, each of above-mentioned each high frequency sound absorbing element all has the surface of a spill.
If necessary, above-mentioned acoustic absorbing medium can be shaped, so that increase the sound absorption efficiency in the above-mentioned chamber.
Chamber can be by some wall sealings of the sidewall that comprises shell.
Antenna radiator can place on the outer surface of above-mentioned wall.
Alternatively, antenna radiator can be arranged on the inner surface of above-mentioned wall.
Above-mentioned radiator preferably is suitable for allowing the multiband of said apparatus functional.
Description of drawings
For the ease of understanding various aspects of the present invention more fully and trying out, now with reference to preferred embodiment is described in the accompanying drawing, wherein:
Fig. 1 is a kind of radio communications set according to configuration of the present invention, as: the decomposing schematic representation of the part of cellular phone;
Fig. 2 is the schematic diagram of a cellular phone shell part that has a kind of acoustic absorbing medium of form;
Fig. 3 is the schematic diagram with cellular phone shell part of multi-form acoustic absorbing medium;
Fig. 4 is the view of seeing below the assembly of Fig. 2 and Fig. 3;
Fig. 5 shows configuration and is used for antenna radiator of the present invention;
In the accompanying drawings, identical label is used to represent identical parts.
Embodiment
In Fig. 1, schematically show the rear casing part 1 of a kind of cellular phone of configuration with the form of exploded view according to the present invention.
By two sidewalls 3, end wall 4 and the chamber 12 that partition wall 5 is limited are resonant cavitys relevant with near-end antenna radiator 13 and multitone microphone 14. Wall 2,3 and 4 around chamber 12 has the thickness of minimizing, so that antenna radiator 13 is placed on the outer surface of housing parts 1.Microphone 14 is arranged in a groove shaped fixture 15, and described fixture 15 extends to the hollow interior of chamber 12, thereby the outer surface 14a of microphone 14 aims at the hole 13a of antenna radiator 13 and part runs through this hole 13a.The rear surface 14b of microphone 14 is arranged in the speaking terminal 15a that is surrounded by groove shaped fixture 15.In addition, can be arranged in the chamber 12 is the sound absorbing element 16 and 17 that material well-known in the art is made.The character of acoustic absorbing medium does not constitute a part of the present invention.Printed circuit board (PCB) 18 forms the upper wall of the remainder of chamber 12 and housing parts 1, and be fixed on the housing parts 1 by some securing member (not shown), above-mentioned securing member runs through the hole 19,20 that lays respectively in printed circuit board (PCB) 18 and the housing parts 1 interior erection column 21.
In use, chamber 12 plays the resonant cavity of antenna radiator 13 and multitone microphone 14.By microphone 14 being arranged in the hole 13a of radiator 13, antenna sensitivity is not loss basically all, and basic overhead chamber provides one to compare the bigger operatic tunes so that utilize the frequency range of multitone microphone 14 fully with the prior art radio communications set.In general, because the antenna system of radio communications set is in 900MHz work, and microphone is to work below 10KHz, therefore, does not have electrical Interference between these elements basically.For the multitone microphone provides bigger sound chamber, meaning has enough big volume capacity that the acoustic absorbing medium element is packed in sound chamber or the acoustic resonance cavity 12 now, produces high-fidelity sound so that improve the acoustic frequency response characteristic of microphone 14 yet importantly.
Fig. 2 shows the assembly that does not have sound absorbing element 17 and do not have Fig. 1 of PCB 18.
As shown in Figure 2, microphone 14 is installed in the groove shaped fixture 15 by the speaking terminal of fixture 15 central authorities, and its back 14b is in chamber 12.The sizable high frequency absorption element 16 of chamber 12 volumes is processed to be fit to the internal geometry of chamber 12, and is used for optionally absorbing the undesired audio frequency in audio spectrum higher-end place.Sound absorbing element 16 usefulness binders etc. are fixed on one or more surfaces of chamber 12, and its physical composition does not influence antenna sensitivity.High frequency sound absorbing element 16 is two thin similar elements, and each element all has a concave surface, and these two elements 16 are arranged in the chamber 12 symmetrically with respect to microphone 14.Therefore, high frequency sound absorbing element 16 is equidistant and is fixed on the surface of sidewall 3 with microphone 14.
Fig. 3 is the view similar to Fig. 2, but Fig. 3 does not illustrate high frequency sound absorbing element 16.
In Fig. 3, can see a kind of molded low frequency absorption element 17, element 17 is fixed on the groove shaped fixture 15 so that cover the rear surface 14b (the two is all not shown) of microphone 14.A kind of well-known medium of sound absorbing element 17 usefulness forms, and this medium optionally absorbs audio spectrum than the undesired audio frequency of lower end.Upwardly extending from element 17 is the pillar-shaped bossing made from identical compressible sound-absorbing material 22.When the assembling cell phone, the surface engaged of bossing 22 and PCB, and promote the inner surface 14b firm engagement that sound absorbing element 17 is pasting installed part 15 and microphone 14, so that low frequency absorption element 17 covers rear surface 14a.High frequency sound absorbing element 16 or low frequency absorption element 17 whichevers can be used in the chamber 12.Yet, preferably sound absorbing element 16 or 17 is used together, so that the acoustic fidelity maximum of this configuration.
Fig. 4 shows the view that the assembly of Fig. 2 and 3 is seen from below.
Fig. 4 shows antenna radiator 13 and is installed to situation on the housing parts 1, and wherein the outer surface 14a of multitone microphone 14 runs through hole 13a wherein.Be provided with an access hatch 23 in the rear wall 2, be used for leading to Fig. 1, the sim card socket 10 shown in 2 and 3.
Fig. 5 schematically shows the antenna radiator 30 that is fit to be installed in the chamber 12.
Advantageously, the present invention provides a good solution to a kind of like this requirement of vying each other, and promptly in radio communications set high-fidelity multitone microphone is installed suitably and is not sacrificed the compactedness of device.In addition, the multitone microphone can be arranged in the scope of antenna resonance chamber and make and in bigger antenna/microphone resonant cavity, to use acoustic absorbing medium that compare with the prior-art devices of same-type, this has improved the tonequality of sound greatly.
Above-mentioned detailed description only provides preferred exemplary embodiment, the scope that is not intended to limit the present invention, practicality or configuration.On the contrary, the detailed description of preferred illustrative embodiment provides the explanation that can implement preferred illustrative embodiment of the present invention to those skilled in the art.Should be appreciated that, under the situation of the spirit and scope of the present invention that do not break away from appended claims and limited, can carry out various changes the function and the configuration aspect of each element.
Claims (12)
1. radio telecommunication device that comprises a multitone microphone, this device comprises:
A shell, described shell have a resonant cavity relevant with antenna radiator, are provided with a multitone microphone of communicating by letter with a speaking terminal in the described resonant cavity, and described speaking terminal runs through the wall of above-mentioned shell and aims at the hole in the above-mentioned antenna radiator.
2. according to the device of claim 1, wherein resonant cavity comprises the chamber of above-mentioned shell one end of vicinity.
3. according to the device of claim 1, wherein said chamber is positioned at the rear portion of described shell.
4. according to the device of claim 1, wherein said microphone is arranged in the groove shaped fixture that stretches into above-mentioned chamber.
5. according to the device of claim 2, wherein said chamber comprises two and the equidistant high frequency sound absorbing element of microphone.
6. according to the device of claim 5, wherein said chamber comprises a low frequency absorption element that covers the microphone rear surface.
7. according to the device of claim 6, wherein said high frequency sound absorbing element respectively has a concave surface.
8. according to the device of claim 7, wherein said sound absorbing element is processed to improve the shape of above-mentioned indoor sound absorption efficiency.
9. according to the device of claim 2, wherein said chamber can be sealed with the wall that comprises above-mentioned side wall of outer shell.
10. according to the device of claim 1, wherein said antenna radiator is positioned on the outer surface of above-mentioned wall.
11. according to the device of claim 1, wherein said antenna radiator is positioned on the inner surface of above-mentioned wall.
12. according to the device of claim 1, wherein said antenna radiator is fit to allow the multiband of said apparatus functional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031234380A CN1549551A (en) | 2003-05-08 | 2003-05-08 | Structural configuration for radio communication apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031234380A CN1549551A (en) | 2003-05-08 | 2003-05-08 | Structural configuration for radio communication apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1549551A true CN1549551A (en) | 2004-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031234380A Pending CN1549551A (en) | 2003-05-08 | 2003-05-08 | Structural configuration for radio communication apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1549551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921508B (en) * | 2005-08-24 | 2012-01-11 | Lg电子株式会社 | Mobile terminal with internal antenna structure having a sound resonance chamber |
-
2003
- 2003-05-08 CN CNA031234380A patent/CN1549551A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1921508B (en) * | 2005-08-24 | 2012-01-11 | Lg电子株式会社 | Mobile terminal with internal antenna structure having a sound resonance chamber |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |