CN201374734Y - Compass device of mobile terminal - Google Patents
Compass device of mobile terminal Download PDFInfo
- Publication number
- CN201374734Y CN201374734Y CN200820153781U CN200820153781U CN201374734Y CN 201374734 Y CN201374734 Y CN 201374734Y CN 200820153781 U CN200820153781 U CN 200820153781U CN 200820153781 U CN200820153781 U CN 200820153781U CN 201374734 Y CN201374734 Y CN 201374734Y
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- compass device
- portable terminal
- mobile terminal
- compass
- needle
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Abstract
The utility model discloses a compass device of a mobile terminal, which comprises a magnetic needle and a middle axis. The compass device is arranged on a confirmation key in the middle of upper, lower, left and right navigation keys of the mobile terminal, and the middle axis of the compass device is positioned at the center of the confirmation key; the upper, lower, left and right navigation keys of the mobile terminal are used for indicating the directions of east, south, west and north. The distance between the circumference periphery that the magnetic needle in the compass device rotates around an axis and an RF antenna of the mobile terminal is more than 2.5cm, and the distance between the circumference periphery that the magnetic needle in the compass device rotates around an axis and a speaker or a handset is more than 1cm. The compass device of the mobile terminal avoids the electromagnetic interference, has low cost, and convenient and effective use, and can meet the requirements of daily use requirements of users.
Description
Technical field
The utility model relates to portable terminal, particularly a kind of physics compass device that is installed on the portable terminal.
Background technology
Compass is all having crucial effects aspect daily life and outdoor activities, the work etc. a lot.As a kind of instrument commonly used, all integrated compass functional on many portable terminals.
Compass on the portable terminal mainly comprises three kinds on software guideline pin, digital compass, physics compass.Wherein the software guideline pin distinguishes that according to watch hand and solar direction the principle in orientation makes, and has certain limitation in the use.The general employing of digital compass two magnetic strengths (mangneto inductance) transducer adds the measurement change-over circuit and finishes, and precision is higher, and cost is also higher.The physics compass directly adopts needle, and cost is very low, but the electromagnetic interference (EMC) that portable terminal is caused is bigger, and how reducing electromagnetic interference is the problem that needs solution.
The utility model content
For overcoming the deficiency of above-mentioned prior art, the technical problems to be solved in the utility model provides a kind of low-cost physics compass device that is used for portable terminal.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of compass device of portable terminal, comprise needle and axis, described compass device is arranged on " affirmation " key in the middle of the navigation key of direction up and down of portable terminal, the axis of described compass device is positioned at the central authorities of " affirmation " key, and the navigation key up and down of portable terminal is used for direction indication north Nan Xidong.
The circumference extension that needle in the described compass device pivots apart from the radio-frequency antenna distance of portable terminal more than 2.5cm.
Circumference extension that needle in the described compass device pivots and the distance between loud speaker or the receiver are more than 1cm.
Described portable terminal is straight-plate-type, sliding cover type, folding mobile terminal.
Compared with prior art, the beneficial effects of the utility model are:
The utility model discloses a kind of physics compass device that is installed on the portable terminal.This device has taken into full account the electromagnetic interference problem of popular at present straight-plate-type, sliding cover type, folding mobile terminal, and compass device is placed on " affirmation " key in the middle of the navigation key of direction up and down of portable terminal.For eliminate electromagnetic interference as far as possible, the circumference extension that the needle in the compass device pivots has enough distances apart from radio-frequency antenna, loud speaker and the receiver of portable terminal.This portable terminal compass device has been avoided electromagnetic interference problem, and cost is low, and is easy to use effective, can satisfy the daily use of user substantially.
Description of drawings
Fig. 1 is the typical result figure of the compass device of the utility model portable terminal.
Fig. 2 be the utility model compass device and mobile terminal antenna apart from schematic diagram.
The parts that dotted portion is represented among Fig. 1, Fig. 2 are positioned at the portable terminal reverse side.
Embodiment
Below in conjunction with drawings and Examples embodiment of the present utility model is further described in detail, but should limit protection range of the present utility model with this.
To be that example is described the utility model with straight plate portable terminal below, certainly, the utility model be not limited thereto, and goes for the portable terminal of any other types.
The compass device of the utility model portable terminal, comprise needle and axis, described compass device is arranged on " affirmation " key in the middle of the navigation key of direction up and down of portable terminal, the axis of described compass device is positioned at the central authorities of " affirmation " key, the navigation key up and down of portable terminal is used for direction indication north Nan Xidong, to increase the vision area of compass.
The circumference extension that needle in the described compass device pivots apart from the radio-frequency antenna distance of portable terminal more than 2.5cm, in order to avoid itself bigger electromagnetic interference is brought influence to the radio-frequency performance of portable terminal.
In addition, because loud speaker and receiver on the portable terminal contain magnetic element more, circumference extension that the needle in the compass device pivots and the distance between loud speaker or the receiver are more than 1cm, otherwise it is inaccurate to cause compass device to point to.
This novel portable terminal can also be sliding cover type, folding mobile terminal.
Be illustrated in figure 1 as a novel design sketch that contains the portable terminal of compass device, as shown in the figure, compass device marks " N " " S " " W " " E " respectively simultaneously directly as the affirmation button in the middle of the navigation key up and down of portable terminal on four navigation keys.Do like this and be convenient to determining of direction, during use, as long as portable terminal is set level, rotate fuselage, the black one end points upwards that makes needle is to key " N ", and then the sensing of four navigation keys is exactly correct direction at this moment.According to shown in Figure 1, the distance between loud speaker 2 and receiver 1 and the compass is far away, and its magnetic can be ignored to the sensing influence of compass.
Fig. 2 dotted line is depicted as the radio-frequency antenna 3 of this portable terminal, and antenna is enough far away from the minimum range of compass device, and greater than 2.5cm, like this, the magnetic disturbance that the needle of compass device produces can be ignored to the influence of radio-frequency antenna.Experiment finds that if needle is closer from the distance of antenna, the receiving sensitivity of portable terminal and transmitting power have certain influence, and table 1 is original aerial radiation effect table, has only listed the usefulness that the result on the both direction compares in order to simplify; Table 2 is the aerial radiation effect tables when placing needle apart from the nearer position of antenna.The placement angle of mobile phone is shown in first tabulation in following the tabulation; The radiant power (dBm of unit) of next three row front numeral mobile phones maximum power level on this position; The receiving sensitivity of back numeral mobile phone (dBm of unit) is meant and is satisfying the minimum signal level that the mobile phone input need be imported under certain bit error rate performance condition.With table 1 is example, and expression is when mobile phone places 90 to spend, and 1,62, the power on 124 3 channels is respectively 32.7,33.6,34.0, and sensitivity is respectively-108 ,-107 ,-106.
Table 1
| GSM | 1 | 62 | 124 |
| 90 | 32.7/-108 | 33.6/-107 | 34.0/-106 |
| 180 | 34.1/-109 | 33.5/-108 | 33.7/-109 |
| DCS | 512 | 698 | 885 |
| 90 | 30.4/-104 | 29.1/-105 | 28.4/-104 |
| 180 | 29.4/-102 | 28.6/-104 | 28.7/-105 |
Table 2
| GSM | 1 | 62 | 124 |
| 90 | 30.0/-106 | 31.6/-103 | 32.0/-104 |
| 180 | 32.2/-106 | 33.2/-104 | 33.0/-104 |
| DCS | 512 | 698 | 885 |
| 90 | 24.6/-100 | 24.0/-102 | 23.1/-101 |
| 180 | 23.59/-100 | 22.2/-99 | 20.4/-100 |
Contrast table 1 can be reached a conclusion with table 2: when needle during from the close together of antenna, GSM and DCS (Distributed Control System, GSM 1800Hz) power of two frequency ranges and the sensitivity radiation event of antenna when not adding needle is compared, all descend to some extent, especially comparatively serious in the influence of DCS frequency range.
And among this embodiment, compass device is pressed Fig. 1 position handle, the radio frequency parameter that records is as shown in table 3.
Table 3
| GSM | 1 | 62 | 124 |
| 90 | 32.8/-107 | 33.2/-104 | 33.5/-105 |
| 180 | 33.1/-108 | 33.2/-107 | 33.4/-108 |
| DCS | 512 | 698 | 885 |
| 90 | 30.1/-104 | 28.9/-104 | 28.1/-104 |
| 180 | 29.0/-102 | 28.1/-104 | 28.7/-105 |
Contrast table 1 can be reached a conclusion with table 3: after compass device is pressed the processing of Fig. 1 position, because needle must be apart from far away apart from antenna, and not on the radiation direction of antenna, so little to the influence of antenna performance, the faint influence of the reception of portable terminal and emitting performance can be accepted.
By the utility model, compass device cheaply is provided on a kind of portable terminal effectively, easy to use and avoided electromagnetic interference problem.
The above is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be technology category of the present utility model.
Claims (4)
1, a kind of compass device of portable terminal, comprise needle and axis, it is characterized in that: described compass device is arranged on " affirmation " key in the middle of the navigation key of direction up and down of portable terminal, the axis of described compass device is positioned at the central authorities of " affirmation " key, and the navigation key up and down of portable terminal is used for direction indication north Nan Xidong.
2, compass device according to claim 1 is characterized in that: the circumference extension that the needle in the described compass device pivots apart from the radio-frequency antenna distance of portable terminal more than 2.5cm.
3, compass device according to claim 1 is characterized in that: circumference extension that the needle in the described compass device pivots and the distance between loud speaker or the receiver are more than 1cm.
4, compass device according to claim 1 is characterized in that: described portable terminal is straight-plate-type, sliding cover type, folding mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820153781U CN201374734Y (en) | 2008-10-08 | 2008-10-08 | Compass device of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820153781U CN201374734Y (en) | 2008-10-08 | 2008-10-08 | Compass device of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201374734Y true CN201374734Y (en) | 2009-12-30 |
Family
ID=41500815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820153781U Expired - Fee Related CN201374734Y (en) | 2008-10-08 | 2008-10-08 | Compass device of mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201374734Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101352A (en) * | 2016-05-30 | 2016-11-09 | 努比亚技术有限公司 | A kind of compass or electronic compass fixed structure and mobile terminal |
| CN106323258A (en) * | 2016-08-11 | 2017-01-11 | Tcl移动通信科技（宁波）有限公司 | Stabilizing system and method for mobile terminal dynamic magnetic field and mobile terminal |
-
2008
- 2008-10-08 CN CN200820153781U patent/CN201374734Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106101352A (en) * | 2016-05-30 | 2016-11-09 | 努比亚技术有限公司 | A kind of compass or electronic compass fixed structure and mobile terminal |
| CN106323258A (en) * | 2016-08-11 | 2017-01-11 | Tcl移动通信科技（宁波）有限公司 | Stabilizing system and method for mobile terminal dynamic magnetic field and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WINGTECH COMMUNICATION CO., LTD. Free format text: FORMER OWNER: WENTAI COMMUNICATION SCIENCE + TECHNOLOGY CO., LTD., JIAXING CITY Effective date: 20111228 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111228 Address after: 314006, No. 777, South Middle Road, Nanhu District, Jiaxing (Jiaxing science and technology city) Patentee after: Wingtech Communication Co., Ltd. Address before: 314006, Jiaxing, Zhejiang on the north side of South Central Road, two West Road Patentee before: Wentai Communication Science & Technology Co., Ltd., Jiaxing City |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20161008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |