CN1247650A - PDA antenna system - Google Patents
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- CN1247650A CN1247650A CN97181943A CN97181943A CN1247650A CN 1247650 A CN1247650 A CN 1247650A CN 97181943 A CN97181943 A CN 97181943A CN 97181943 A CN97181943 A CN 97181943A CN 1247650 A CN1247650 A CN 1247650A
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Abstract
A PDA antenna system which is provided with a first antenna used for a first case for application, a second antenna used for a second case for application, a control section which discriminates the first and second cases for application each other and outputs a discriminated signal, and an antenna selecting device which selects either the first or second antenna as an antenna for application based on the discriminated signal of the control section and connects the seleccted antenna to a radio circuit so that the optimum antenna can be selected for each case for application. Therefore, the case for application can be discriminated easily and, at the same time, an excellent stable antenna characteristic can be secured easily.
Description
Technical field
The present invention relates to can be applicable to be called the antenna assembly that the PDA on PDA (personal digital assistant's) the portable information terminal uses.
Technical background
In the past, as carrying various portable information terminals usefulness, more small-sized formation, that be called PDA practicability.This PDA can handle literal, image, sound digital information, possesses: wireless data communication function, call function, so-called touch-input function or an input function etc.
Fig. 9 is the perspective view that the PDA that possesses the antenna assembly that existing PDA uses is shown, Figure 10 is the end view that the PDA that possesses the antenna assembly that existing PDA uses is shown, Figure 11 is the end view of the PDA when being illustrated in conversation, Figure 12 is the perspective view of the PDA when being illustrated in data communication, and Figure 13 is a perspective view of having adorned the PDA of coil antenna in illustrating.
In Fig. 9～Figure 13,31 is the framework of PDA, and 32 for possessing the display frame of so-called touch-input function and display text and image, and 33 is the microphone of sound import, and 34 is the loud speaker of output sound.Display frame 32, microphone 33 and loud speaker 34 are configured on the front side of framework 31.
The 35th, when when conversation and data communication, use and pull out the harvesting antenna what framework 31 can be pulled out and receive and keep, L1 pulls out the central shaft of harvesting antenna 35 and the formed distance in front of framework 31, L2 pulls out the central shaft of harvesting antenna 35 and the formed distance in back of framework 31, forms L1＞L2.Why forming like this, is because as shown in Figure 11, must make to pull out harvesting antenna 35 and leave human body head as the electric wave barrier as far as possible, to guarantee the gain of antenna.
37 for because the existence of electric wave barrier etc. is pulled out under the situation that the gain of harvesting antenna 35 significantly reduced, and keeps the built-in antenna of the compensation usefulness of high-gain.
Also have, the not shown electrostatic capacitance sensor that the electric wave barrier is detected, and pull out not shown antenna change-over switch that the mutual antenna of harvesting antenna 35 and built-in antenna 37 switches etc. and also be arranged in the framework 31.For example, can be used for above-mentioned relative assembly open the technology of using in the radiophone that discloses in the flat 6-21863 communique the spy.
Also have, among Figure 12 and Figure 13,38 be when data communication etc. under the situation, the electric wave barriers such as desk of placement framework 31.
Also have, among Figure 13,39 for having formed the coil antenna of above-mentioned built-in antenna 37 with ring-type.
Secondly, relevant work is described.
When conversation, as shown in Figure 11, the framework 31 of the hand-held PDA of user is facing to microphone 33 sounding, from the sound of 34 tins of receptions of loud speaker.At that time, in framework 31, pull out given length pulling out harvesting antenna 35, to guarantee best communications status, meanwhile, since the existence of electric wave barrier etc. pull out under the situation that the gain of harvesting antenna 35 significantly reduced, automatically switch on built-in antenna 37 or the coil antenna 39 by not shown antenna change-over switch, to guarantee best communications status.
On the other hand, when data communication, as shown in Figure 12 and Figure 13, the user is placed on the framework 31 of PDA on the electric wave barriers 38 such as desk.Then, carry out given data input and affirmation, carry out data communication by display frame 32.
Because the antenna assembly that existing PDA uses does not constitute as described above, though so when conversation, guarantee given antenna gain easily, but, when data communication, if framework 31 is placed on the electric wave barrier 38, the distance of then pulling out harvesting antenna 35 and this electric wave barrier 38 is varied down to L2, exists this gain of pulling out harvesting antenna 35 and reduces, and reliability of data communication such as also reduces at problem.
Also have, owing to should compensate the relevant built-in antenna 37 of harvesting antenna 35 gain declines or the characteristic of coil antenna 39 of pulling out, the material that depends on electric wave barrier 38 (for example, whether be that metal is made) or with the distance of this electric wave barrier 38 etc., so guarantee that enough antenna performances are difficult, meanwhile because the sniffer of this electric wave barrier 38 also depends on the material of this electric wave barrier 38 etc., so exist be used for judgment standard that antenna switches become complexity etc. problem.
The present invention produces in order to solve problem as described above, and its purpose is, no matter use in the form in conversation or data communication etc., all obtains easily guaranteeing the antenna assembly that the PDA of good and stable antenna performance uses.
Disclosure of an invention
The present invention possesses: the 1st uses the 1st antenna that uses in the form; The 2nd uses the 2nd antenna that uses in the form; Control part uses form to differentiate to above-mentioned the 1st use form and the above-mentioned the 2nd, and the output judgment signal; And antenna selection apparatus, based on the judgment signal of above-mentioned control part, some in above-mentioned the 1st antenna that selection should be used or above-mentioned the 2nd antenna is connected to radio circuit; The present invention uses in the form at each, selects and use best antenna.Because this point can easily be made the differentiation of using form, meanwhile, no matter be which kind of uses form can both easily guarantee good and stable antenna performance.
Also have, the present invention possesses: use form and the 2nd to use the antenna that uses in the form the 1st; Realize the above-mentioned the 1st the 1st match circuit of coupling when using form; Realize the above-mentioned the 2nd the 2nd match circuit of coupling when using form; Control part uses form to differentiate to above-mentioned the 1st use form and the above-mentioned the 2nd, and the output judgment signal; And the match circuit choice device, based on the judgment signal of above-mentioned control part, some in above-mentioned the 1st match circuit that selection should be used or above-mentioned the 2nd match circuit is connected to above-mentioned antenna on the radio circuit by this selecteed match circuit; The present invention uses in the form at each, selects best match circuit and uses antenna.Because this point can easily be made the differentiation of using form, meanwhile, use the matching condition that can easily guarantee the best in the form at each, can easily guarantee good and stable antenna performance.
Also have, the use form of PDA of the present invention is made of following part at least: data communication, conversation, carry out the data communication/conversation of above-mentioned data communication and above-mentioned conversation, and the data processing of before above-mentioned data communication or above-mentioned data communication/conversation, carrying out given data processing, above-mentioned conversation is decided to be the 1st uses form, above-mentioned data communication and above-mentioned data communication/conversation are decided to be the 2nd use form, above-mentioned data processing are decided to be the 1st use form or the 2nd to use form.Because this point can obtain optimum antenna characteristic according to various use forms.
Also have, the 2nd antenna of the present invention is with bar-shaped formation, and it is to having at least one can regulate in the distance of electric wave barrier or the angle.Because this point can utilize simple structure to guarantee the good and stable properties of the 2nd antenna.
Also have, the 2nd dwi hastasana of the present invention becomes and can receive and keep in the framework.Because this point, can prevent from that when carrying PDA the 2nd antenna from stretching out in the framework to wait and situation that obstruction is carried.
Also have, the present invention places antenna lid is set on framework, and this antenna is provided with lid can change its orientation to the electric wave barrier arbitrarily, and the 2nd antenna is arranged in the surface or inside that this antenna is provided with lid.Because this point by at random changing the posture that antenna is provided with lid, can easily be guaranteed the best posture of the 2nd antenna to the electric wave barrier, can guarantee good and stable antenna performance.
Also have, in the present invention, antenna is provided with lid utilizes a certain method in printing, spraying plating, the transfer to form the 2nd antenna.Because this point can easily form the 2nd antenna as thin as a wafer, can help miniaturization and the weight reduction of PDA.
Also have, in the present invention, the 2nd antenna is arranged on changes arbitrarily on its part the framework of the orientation of electric wave barrier.Because this point, because utilizing on the PDA function originally, the part with regard to indispensable framework is provided with the 2nd antenna, so do not need to be used to be provided with the other member of this antenna, can help the minimizing of other part number of packages, meanwhile, the structure of PDA itself can be simplified, weight reduction can be helped.
Also have, in the present invention, utilize a certain method in printing, spraying plating, the transfer to form the 2nd antenna the part of framework.Because this point can easily form the 2nd antenna as thin as a wafer, can help miniaturization and the weight reduction of PDA.
Also have, the present invention uses form and the 2nd to use the differentiation of form in order to carry out the 1st, is provided with the attitude sensor that detects the framework posture in control part.Because this point can automatically be used the differentiation of form.
The simple declaration of accompanying drawing
Fig. 1 is the block diagram that the antenna assembly that the PDA of the invention process form 1 uses is shown; Fig. 2 is the perspective view of the user mode of the antenna assembly used of the PDA when being illustrated in data communication; Fig. 3 is the perspective view that the user mode of antenna assembly when data communication that the PDA of the invention process form 2 uses is shown; Fig. 4 be illustrate the antenna assembly that the PDA that has used the invention process form 3 is used the PDA closure the perspective view of state; Fig. 5 is the perspective view that the user mode of antenna assembly when data communication that PDA uses is shown; Fig. 6 is the block diagram that the antenna assembly that the PDA of the invention process form 4 uses is shown; Fig. 7 is the perspective view that is illustrated in the user mode of the antenna assembly that the PDA in when conversation uses; Fig. 8 is the perspective view of the user mode of the antenna assembly used of the PDA when being illustrated in data communication; Fig. 9 is the perspective view that the PDA that possesses the antenna assembly that existing PDA uses is shown; Figure 10 is the end view that the PDA that possesses the antenna assembly that existing PDA uses is shown, and Figure 11 is the end view of the PDA when being illustrated in conversation, and Figure 12 is the perspective view of the PDA when being illustrated in data communication; And Figure 13 is a perspective view of having adorned the PDA of coil antenna in illustrating.
The optimal morphology that is used to carry out an invention
Below, in order to illustrate in greater detail the present invention,, the relevant optimal morphology of the present invention that is used to implement is described according to accompanying drawing.
Example 1
Fig. 1 is the block diagram that the antenna assembly that the PDA of the invention process form 1 uses is shown, and Fig. 2 is the perspective view of the user mode of the antenna assembly used of the PDA when being illustrated in data communication.
At first, with reference to Fig. 2, begin to be illustrated from having used PDA overall structure of the present invention.Among Fig. 2,1 is the framework of PDA, and 2 for possessing the display frame of so-called touch-input function or an input function and display text and image, and 3 is the microphone of sound import, and 4 is the loud speaker of output sound.Display frame 2, microphone 3 and loud speaker 4 are configured on the front side of framework 1.
The 5th, when conversation (the 1st use form), use and framework 1 pulling out of can pulling out and take in taken in antenna (the 1st antenna).
The 6th, when data communication (the 2nd use form), use and with the whip antenna (the 2nd antenna) of bar-shaped formation, its distance and angle to electric wave barrier 8 described later can be regulated.That is, this whip antenna 6 is supported like this, its root is rotated freely be supported on this sidepiece of 1 of frame, and, it can be got off so that free position is static.And then, this whip antenna 6 can not received and not kept in the sidepiece of framework 1 when using.This can realize by following, and the slot part or the space of harvesting whip antenna 6 is set on the sidepiece of framework 1.
The 8th, place the desk of framework 1 or people's electric wave barriers such as knee when data communication etc.
Secondly, with reference to Fig. 1, the structure of major part of the present invention is described.
Among Fig. 1,9 is control part, use forms such as conversation or data communication are differentiated, and the output judgment signal.That is, the user is conversing or during data communication, is being necessary to select this call mode or data communication mode in advance based on the demonstration of display frame 2, and usually, this touch input or input operation by the user is carried out.Its structure is by this input signal is differentiated, to differentiate user mode easily.
10 is antenna selection apparatus, pulls out some in harvesting antenna 5 or the whip antenna 6 based on what the judgment signal of control part 9 was selected to use, and is connected on the radio circuit 11.That is, form this antenna selection apparatus 10 like this, make and when conversation, select to pull out harvesting antenna 5, be connected on the radio circuit 11, when data communication, select whip antenna 6, be connected on the radio circuit 11.Control part 9, antenna selection apparatus 10 and radio circuit 11 are arranged in the framework 1.
Moreover, be used to reach as the call function of PDA basic function or the device of data communication function, realize by known, conventional techniques.
Secondly, relevant work is described.
The user is conversing or during data communication, is selecting this call mode or data communication mode in advance based on the demonstration of display frame 2.This selection is undertaken by touching an input or an input operation.
Thereby, to using form to differentiate, meanwhile, use the antenna of selecting and use the best in the form easily at each, can easily guarantee good and stable antenna performance.
As mentioned above, can the following effect that arrive according to this example 1, can easily make the differentiation of using form, meanwhile, no matter be which kind of uses form can both easily guarantee good and stable antenna performance.
Also have,,, can utilize simple structure to guarantee good and stable antenna performance so can obtain following effect owing to can regulate the distance and the angle of 6 pairs of electric wave barriers 8 of whip antenna arbitrarily.
And then, because whip antenna 6 forms and can receive and keep in the framework 1,, can prevent that when carrying PDA whip antenna 6 from stretching out in the framework 1 etc. and situation that obstruction is carried so can obtain following effect.
Moreover, in above-mentioned example 1, use form as conversation being decided to be the 1st, data communication is decided to be the 2nd uses the situation of form to be illustrated, still, be not limited thereto.That is,, except data communication and conversation, can take into account the data communication/conversation of row data communication and conversation at least as the use form of PDA, and the data processing etc. of before data communication or data communication/conversation, carrying out given data processing.
Thereby, also can be decided to be the 2nd to this data communication/conversation and use form, data processing is decided to be the 1st uses form or the 2nd to use form, under these circumstances, also because the reason same with above-mentioned reason, can obtain following effect, can easily make the differentiation of using form, can easily guarantee good and stable antenna performance.
Also have, the situation of using the differentiation of form as the input signal that is produced based on user's input operation more than has been described, but, be not limited thereto, for example, also can automatically use the differentiation of form according to the posture of framework 1 in control part 9 by the not shown angular transducer (attitude sensor) of the posture that detects framework 1 is set.
Example 2
Fig. 3 is the perspective view that the user mode of antenna assembly when data communication that the PDA of the invention process form 2 uses is shown.Moreover, in the following description,, attachedly omit its explanation with identical symbol for the member and identical member that have illustrated.
Among Fig. 3,12 for there to be tabular antenna that lid is set, and this antenna is provided with lid can change its orientation to electric wave barrier 8 arbitrarily.That is, form this antenna setting like this and cover 12, the one end is rotated by framework 1 freely be supported, and, it can be gone up at an arbitrary position can keep static.
13 for to cover 12 inside antenna setting, and for example, by the surface antenna (the 2nd antenna) that a certain method in printing, spraying plating, the transfer is used with the plane data communication that forms, it is the antenna that uses when data communication.
Because other structure is identical with the situation of above-mentioned example 1, its explanation of Therefore, omited.
Secondly, relevant work is described.
Under the situation of carrying out data communication, by placing framework 1, open antenna setting and cover 12 and at random change its posture, regulate the distance of 13 pairs of electric wave barriers 8 of surface antenna that data communication uses and angle, guarantee good and stable antenna performance to guarantee best posture.
Because other work is identical with the situation of above-mentioned example 1, its explanation of Therefore, omited.
As mentioned above, according to this example 2, cover 12 posture by at random changing antenna setting, can obtain following effect, the best posture of 13 pairs of electric wave barriers 8 of surface antenna that data communication is used can be easily guaranteed, good and stable antenna performance can be guaranteed.
Owing to cover 12 inside antenna setting, utilize a certain method in printing, spraying plating, the transfer to form the surface antenna 13 that data communication is used with plane, so can obtain following effect, can easily form antenna as thin as a wafer, can help miniaturization and the weight reduction of PDA.
Moreover, in above-mentioned example 2, illustrated as the situation of the surface antenna 13 that covers 12 internal setting data communication usefulness antenna setting, still, be not limited thereto, also it can be arranged on this antenna setting and cover on 12 the surface.
Also have, in this example 2, use form neither only be defined in conversation and data communication, equally also can be applicable in data communication/conversation or the data processing.
And then, utilize not shown angular transducer (attitude sensor) can make the situation of the differentiation of using form, identical with the situation of above-mentioned example 1.
Example 3
Fig. 4 be illustrate the antenna assembly that the PDA that has used the invention process form 3 is used the PDA closure the perspective view of state, Fig. 5 is the perspective view that the user mode of antenna assembly when data communication that PDA uses is shown.
In Fig. 4 and Fig. 5,1a is preceding side frame body (part of framework), and 1b is the back side frame body, utilizes not shown hinge etc. that both are tied.That is, form this preceding side frame body 1a like this, the one end is rotated by back side frame body 1b freely be supported, and, it can be gone up at an arbitrary position can keep static.Should before side frame body 1a with in above-mentioned example 2 for surface antenna 13 that data communication uses is set the antenna setting of setting cover 12 differently, preceding side frame body 1a constitutes possesses display frame 2, and be PDA on function originally with regard to indispensable member.
14 is in the inside of preceding side frame body 1a, near the periphery of display frame 2, and the framework antenna (the 2nd antenna) that for example utilizes a certain method in printing, spraying plating, the transfer to use with the data communication of wire configuration, it is the antenna that uses when data communication.
Like this, the inside of side frame body 1a before this example 3 is arranged on by the framework antenna 14 that this data communication is used does not just need to be provided for the member of antenna setting in addition.
Because other structure is identical with the situation of above-mentioned example 1, its explanation of Therefore, omited.
Secondly, relevant work is described.
Under the situation of carrying out data communication, by placing back side frame body 1b, side frame body 1a and at random change its posture before opening regulates the distance of 14 pairs of electric wave barriers 8 of framework antenna that data communication uses and angle to guarantee best posture, guarantees good and stable antenna performance.
Because other work is identical with the situation of above-mentioned example 1, its explanation of Therefore, omited.
As mentioned above, according to this example 3,, can obtain following effect by the posture of side frame body 1a before changing at random, the best posture of 14 pairs of electric wave barriers 8 of framework antenna that data communication is used can be easily guaranteed, good and stable antenna performance can be guaranteed.
Particularly, because utilize and on the PDA function, be provided with the framework antenna 14 that data communication is used with regard to side frame body 1a before indispensable originally, so do not need to be used to the other member of this antenna has been set, can obtain following effect, can help the minimizing of other part number of packages, meanwhile, the structure of PDA itself can be simplified, weight reduction can be helped.
Also have, owing to, utilize a certain method in printing, spraying plating, the transfer to form the framework antenna 14 that data communication is used, so can obtain following effect with wire in the inside of preceding side frame body 1a, antenna as thin as a wafer can be easily formed, miniaturization and the weight reduction of PDA can be helped.
Moreover, in above-mentioned example 3, the situation of conduct at the framework antenna 14 of the internal setting data communication usefulness of preceding side frame body 1a has been described, still, be not limited thereto, also it can be arranged on the surface of this preceding side frame body 1a.
Also have, in this example 3, use form neither only be defined in conversation and data communication, also can be applicable in data communication/conversation or the data processing.
And then, utilize not shown angular transducer (attitude sensor) can make the situation of the differentiation of using form, identical with the situation of above-mentioned example 1.
Example 4
Fig. 6 is the block diagram that the antenna assembly that the PDA of the invention process form 4 uses is shown, and Fig. 7 is the perspective view of the user mode of the antenna assembly used of the PDA when being illustrated in conversation, and Fig. 8 is the perspective view of the user mode of the antenna assembly used of the PDA when being illustrated in data communication.
In Fig. 6～Fig. 8, the 15th, use when conversation (the 1st use form) and during data communication (the 2nd uses form) and pull out harvesting antenna (antenna) what framework 1 can be pulled out and receive and keep.16 match circuits (the 1st match circuit) for the conversation usefulness of the impedance matching that realizes pulling out harvesting antenna 15 in when conversation, 17 match circuits of using for the data communication of the impedance matching that when data communication, realizes pulling out harvesting antenna 15 (the 2nd match circuit).Constitute these match circuits 16,17 by known, conventional techniques, become best matching condition in form so that use at each.
18 is the match circuit choice device, it is based on using form, promptly select some in the match circuit 16 of the conversation usefulness that use or the data communication match circuit 17, be connected on the radio circuit 11 pulling out harvesting antenna 15 by this match circuit of having selected based on the judgment signal of control part 9.
The 20th, detect the angular transducer (attitude sensor) of the posture of framework 1 for the differentiation of using form, it is arranged in the control part 9.That is, convention is, when conversation, as shown in Figure 7, framework 1 uprightly used, and when data communication, as shown in Figure 8, framework 1 accumbency used.Thereby it constitutes by the difference of utilizing angular transducer 20 to detect this framework 1 posture differentiates the use form, and this judgment signal is exported to match circuit choice device 18.
Secondly, relevant work is described.
By utilizing angular transducer 20 to detect the difference of framework 1 posture, automatically carry out the differentiation of the use form of so-called conversation or data communication.Then, this judgment signal is exported to match circuit choice device 18.
Match circuit choice device 18 is selected some in the match circuit 16 of the conversation usefulness that use or the match circuit 17 that data communication is used based on this judgment signal, be connected on the radio circuit 11 pulling out harvesting antenna 15 by this match circuit of having selected.On the other hand, if judge when using form as data communication, the match circuit 17 of then selecting data communication to use is pulled out harvesting antenna 15 following of its matching condition and is connected on the radio circuit 11.
Like this, pull out harvesting antenna 15 owing in each use form, use under the matching condition in the best, so the result is easily to guarantee good and stable antenna performance.
As mentioned above, according to this example 4, utilize angle to pass device 20 and can easily make the differentiation of using form, meanwhile, can obtain following effect, can easily guarantee to use matching condition best in the form, can easily guarantee good and stable antenna performance at each.
Moreover, in above-mentioned example 4, the situation of having used angular transducer 20 as the discriminating gear that uses form has been described, still, be not limited thereto, as long as can detect the posture of framework 1, then no matter its checkout gear.Also have,, also can use the differentiation of form based on user's the input signal that input operation produced as having illustrated in the above-mentioned example.
Also have, as having illustrated in the above-mentioned example 1, using form is not only to be defined in conversation and data communication, equally can be applicable in data communication/conversation or the data processing yet.
The possibility of industrial utilization
As mentioned above, no matter the antenna assembly used of the PDA relevant with the present invention is conversation or data Communication waits the use state, can both easily guarantee good and stable antenna performance, as usefulness In the antenna assembly that the PDA that improves the PDA reliability uses, be practical.
Claims (10)
1. PDA antenna assembly is arranged on and possesses data communication function and call function at least, and has among the PDA of framework, and it is characterized in that possessing: the 1st uses the 1st antenna that uses in the form; Second uses the 2nd antenna that uses in the form; Control part uses form to differentiate to above-mentioned the 1st use form and the above-mentioned the 2nd, and the output judgment signal; And antenna selection apparatus, based on the judgment signal of above-mentioned control part, some in above-mentioned the 1st antenna that selection should be used or above-mentioned the 2nd antenna is connected on the radio circuit.
2. PDA antenna assembly is arranged on and possesses data communication function and call function at least, and has among the PDA of framework, it is characterized in that possessing: use form and the 2nd to use the antenna that uses in the form the 1st; Realize the above-mentioned the 1st the 1st match circuit of coupling when using form; Realize the above-mentioned the 2nd the 2nd match circuit of coupling when using form; Control part uses form to differentiate to above-mentioned the 1st use form and the above-mentioned the 2nd, and the output judgment signal; And the match circuit choice device, based on the judgment signal of above-mentioned control part, some in above-mentioned the 1st match circuit that selection should be used or above-mentioned the 2nd match circuit is connected to above-mentioned antenna on the radio circuit by this selecteed match circuit.
3. the antenna assembly that PDA according to claim 1 uses, it is characterized in that, the use form of PDA has at least: data communication, conversation, carry out the data communication/conversation of above-mentioned data communication and above-mentioned conversation, and the data processing of before above-mentioned data communication or above-mentioned data communication/conversation, carrying out given data processing, above-mentioned conversation is decided to be the 1st uses form, above-mentioned data communication and above-mentioned data communication/conversation are decided to be the 2nd use form, above-mentioned data processing are decided to be the 1st use form or the 2nd to use form.
4. the wireless device that PDA according to claim 3 uses is characterized in that: the 2nd antenna is with bar-shaped formation, and it is to having at least one can regulate in the distance of electric wave barrier or the angle.
5. the antenna assembly that PDA according to claim 4 uses is characterized in that: the 2nd dwi hastasana becomes and can receive and keep to framework.
6. the antenna assembly that PDA according to claim 3 uses, it is characterized in that: antenna is set on framework lid is set, this antenna is provided with lid can change its orientation to the electric wave barrier arbitrarily, and the 2nd antenna is arranged in the surface or inside that this antenna is provided with lid.
7. the antenna assembly that PDA according to claim 6 uses is characterized in that: antenna is provided with lid utilizes a certain method in printing, spraying plating, the transfer to form the 2nd antenna.
8. the antenna assembly that PDA according to claim 3 uses is characterized in that: the 2nd antenna is arranged on can changes arbitrarily on its part to the framework of the orientation of electric wave barrier.
9. the antenna assembly that PDA according to claim 8 uses is characterized in that: utilize a certain method in printing, spraying plating, the transfer to form the 2nd antenna to the part of framework.
10. the antenna assembly that PDA according to claim 1 uses is characterized in that: use form and the 2nd to use the differentiation of form in order to carry out the 1st, be provided with the attitude sensor that detects the framework posture in control part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971819432A CN1138349C (en) | 1997-12-24 | 1997-12-24 | PDA antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971819432A CN1138349C (en) | 1997-12-24 | 1997-12-24 | PDA antenna system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1247650A true CN1247650A (en) | 2000-03-15 |
| CN1138349C CN1138349C (en) | 2004-02-11 |
Family
ID=5178241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971819432A Expired - Fee Related CN1138349C (en) | 1997-12-24 | 1997-12-24 | PDA antenna system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1138349C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320415C (en) * | 2004-01-16 | 2007-06-06 | 宏碁股份有限公司 | Antenna dynamic configuration system |
| CN102386950A (en) * | 2010-09-06 | 2012-03-21 | 宏碁股份有限公司 | Portable electronic device and antenna switching method |
-
1997
- 1997-12-24 CN CNB971819432A patent/CN1138349C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320415C (en) * | 2004-01-16 | 2007-06-06 | 宏碁股份有限公司 | Antenna dynamic configuration system |
| CN102386950A (en) * | 2010-09-06 | 2012-03-21 | 宏碁股份有限公司 | Portable electronic device and antenna switching method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1138349C (en) | 2004-02-11 |
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