CN103384025A - Electronic device and control method thereof - Google Patents
Electronic device and control method thereof Download PDFInfo
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- CN103384025A CN103384025A CN2012101334918A CN201210133491A CN103384025A CN 103384025 A CN103384025 A CN 103384025A CN 2012101334918 A CN2012101334918 A CN 2012101334918A CN 201210133491 A CN201210133491 A CN 201210133491A CN 103384025 A CN103384025 A CN 103384025A
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- adjustable antenna
- human body
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Abstract
Provided is an electronic device and a control method thereof. The electronic device comprises a sensor plate, a proximity sensor, a controller and an adjustable antenna element. The proximity sensor is coupled to the sensor plate and is used for detecting a capacitance value between the human body and the sensor plate. The controller is coupled to the proximity sensor and generates a first control signal according to the capacitance value. The adjustable antenna element is coupled to the controller and comprises a main radiating part, a plurality of adjusting parts and a plurality of switchers. The switchers are respectively coupled between the adjusting parts and the main radiating part, and selectively connect or do not connect the adjusting parts and the main radiating part according to the control signal so as to correct an operation frequency band of the adjustable antenna element. When the human body is close to the electronic device, the electronic device can correct the operation frequency band according to the position of the human body so as to maintain good communication quality.
Description
Technical field
The present invention relates to a kind of electronic installation and control method thereof, relate in particular to and to proofread and correct the electronic installation of (Retune) operational frequency bands according near the position of human body.
Background technology
The embedded Antenna Design of the normal employing of traditional panel computer or smart mobile phone.Because the inner space of mobile device is limited, some manufacturers adopt concealed antenna, and other manufacturers utilize the casing of mobile device to be used as the part of antenna.
Yet the impact of human body contact mobile device is difficult to avoid really., just changed antenna resonance mode and radiation characteristic originally fully, thereby caused communication quality to descend during to the radiant body of antenna when people's palm or finger contact.
Summary of the invention
In order to overcome the above problems, the invention provides a kind of electronic installation and control method thereof.When the human body proximity electronic installation, electronic installation can come the correct operation frequency band according to the position of human body, to keep good communication quality.
The invention provides a kind of electronic installation, comprising: a sensory panel; One closes on sensor, is coupled to this sensory panel, and in order near the human body detecting and the capacitance between this sensory panel; One controller is coupled to this and closes on sensor, and produces a control signal according to this capacitance; And an adjustable antenna element, be coupled to this controller, and comprise: a primary radiation part; A plurality of adjustment parts; And a plurality of switchs, be respectively coupled between described a plurality of adjustment part and this primary radiation part, and according to optionally conducting or the not conducting respectively of this control signal, to proofread and correct an operational frequency bands of this adjustable antenna element.
In addition, the invention provides the method for an adjustable antenna element of a kind of control one electronic installation, comprise the following steps: to provide this adjustable antenna element, this adjustable antenna element comprises a primary radiation part, a plurality of adjustment part, and a plurality of switchs, wherein said a plurality of switchs are respectively coupled between described a plurality of adjustment part and this primary radiation part; Near detecting a human body and the capacitance between this adjustable antenna element; And distinguish optionally conducting or the described a plurality of switchs of not conducting according to this capacitance, to proofread and correct an operational frequency bands of this adjustable antenna element.
When the human body proximity electronic installation, the present invention can come the correct operation frequency band according to the position of human body, to keep good communication quality.
Description of drawings
Fig. 1 shows the schematic diagram of electronic installation described according to one embodiment of the invention and near human body;
Fig. 2 shows the schematic diagram that close on sensor and controller described according to one embodiment of the invention;
Fig. 3 shows the schematic diagram of adjustable antenna element described according to one embodiment of the invention;
Fig. 4 shows the schematic diagram of adjustable antenna element described according to another embodiment of the present invention;
Fig. 5 A shows the schematic diagram according to the described Circuit tuning of one embodiment of the invention;
Fig. 5 B shows the schematic diagram according to the described Circuit tuning of another embodiment of the present invention;
Fig. 6 shows the flow chart according to the control method of the adjustable antenna element of the described electronic installation of one embodiment of the invention.
Wherein, description of reference numerals is as follows:
100~electronic installation;
110~sensory panel;
120~close on sensor;
122~universal I/O Interface;
130~controller;
150~adjustable antenna element;
152~primary radiation part;
154~switch;
156~adjustment part;
310~diode;
320~sheet metal;
420~Circuit tuning;
421~inductor;
422~capacitor;
C1~capacitance;
HB~human body;
SC~control signal;
VSS~earthing potential.
Embodiment
Fig. 1 shows the schematic diagram of electronic installation 100 described according to one embodiment of the invention and near human body HB.Within electronic installation 100 can be arranged at a mobile device, for example: smart mobile phone, panel computer, or notebook computer.As shown in Figure 1, electronic installation 100 comprises: a sensory panel (SensingPad) 110, closes on sensor (Proximity Sensor) 120, one controller 130, and an adjustable antenna element 150.Sensory panel 110 available metals are made.Because human body HB can be considered a conductor, therefore sensory panel 110 and near human body HB can form a virtual capacitor, wherein a capacitance C1 of this virtual capacitor determines according to the distance between sensory panel 110 and human body HB.When human body HB near or during away from sensory panel 110, the radiation characteristic of the adjustable antenna element 150 of electronic installation 100 may change.Therefore, be necessary the operational frequency bands of the adjustable antenna element 150 of electronic installation 100 is proofreaied and correct.
Close on sensor 120 and be electrically coupled to sensory panel 110, and in order to the capacitance C1 between human body HB and sensory panel 110.Controller 130 is electrically coupled to and closes on sensor 120, and produces a control signal SC according to capacitance C1.Adjustable antenna element 150 is electrically coupled to controller 130.In one embodiment, adjustable antenna element 150 comprises: a primary radiation part 152, a plurality of switch 154, and a plurality of adjustment part 156.Primary radiation part 150 can be a large-area metallic plate.Described a plurality of switch 154 is electrically coupled to respectively between described a plurality of adjustment part 156 and primary radiation part 152, and according to control signal SC optionally conducting (Closed) or not conducting (Open) respectively, to proofread and correct an operational frequency bands of adjustable antenna element 150.
In the preferred embodiment of the present invention, electronic installation 100 operates in the following manner.As human body HB away from sensory panel 110, or when the capacitance C1 that detects descends, controller 130 makes the whole conductings of described a plurality of switch 154 (for example: have 5 switchs 154, wherein 5 equal conductings of order), makes the operational frequency bands of adjustable antenna element 150 toward the low frequency skew.On the contrary, when the close sensory panel 110 of human body HB, or when the capacitance C1 that detects rises, part or all not conducting that controller 130 makes described a plurality of switch 154 (for example: have 5 switchs 154, wherein 3 or 5 not conductings of order), make the operational frequency bands of adjustable antenna element 150 toward high frequency offset.Via controlling described a plurality of switchs 154, electronic installation 100 of the present invention can be according to the diverse location of human body HB near and correct operation frequency band automatically, to keep good communication quality.
Fig. 2 shows the schematic diagram that close on sensor 120 and controller 130 described according to one embodiment of the invention.In the present embodiment, close on sensor 120 and comprise a universal input and output (General PurposeInput/Output, GPIO) interface 122, and controller 130 is obtained capacitance C1 by universal I/O Interface 122, and for example: the form with voltage signal obtains.
Fig. 3 shows the schematic diagram of adjustable antenna element 150 described according to one embodiment of the invention.In the present embodiment, described a plurality of switchs 154 of adjustable antenna element 150 are a plurality of diodes (Diode) 310, and described a plurality of adjustment parts of adjustable antenna element 150 are a plurality of sheet metals 320.Described a plurality of diode 310 can be electrically coupled to respectively controller 130, and according to control signal SC optionally conducting or not conducting respectively.In other embodiments, described a plurality of switchs 154 of adjustable antenna element 150 also can be a plurality of mos field effect transistor (Metal-Oxide-SemiconductorField-Effect Transistor, MOSFET), and described a plurality of mos field effect transistor have respectively a grid that is coupled to controller 130.
Fig. 4 shows the schematic diagram of adjustable antenna element 150 described according to another embodiment of the present invention.In the present embodiment, described a plurality of switchs of adjustable antenna element 150 are a plurality of diodes 310, and described a plurality of adjustment parts of adjustable antenna element 150 are a plurality of Circuit tunings 420.Described a plurality of Circuit tuning 420 can comprise respectively one or more capacitor or (and) inductor.
Fig. 5 A shows the schematic diagram of Circuit tuning 420 described according to one embodiment of the invention.As shown in Fig. 5 A, each Circuit tuning 420 can comprise an inductor 421 and a capacitor 422, and it is coupled in parallel, and also is electrically coupled to an earthing potential VSS.Fig. 5 B shows the schematic diagram of Circuit tuning 420 described according to another embodiment of the present invention.As shown in Fig. 5 B, each Circuit tuning 420 can comprise an inductor 421 and a capacitor 422, and it is coupled in series, and also is electrically coupled to an earthing potential VSS.It should be noted that although Fig. 5 A, Fig. 5 B only show single inductor 421 and Single Capacitance device 422, in fact each Circuit tuning 420 can comprise more inductor or (and) capacitor.
Fig. 6 shows the flow chart according to the control method of the adjustable antenna element of the described electronic installation of one embodiment of the invention.At first begin, at step S610, provide an adjustable antenna element, this adjustable antenna element comprises a primary radiation part, a plurality of adjustment part, and a plurality of switch, and wherein said a plurality of switchs are electrically coupled to respectively between described a plurality of adjustment part and this primary radiation part.At step S620, near the human body detecting and the capacitance between this adjustable antenna element.At last, at step S630, distinguish optionally conducting or the described a plurality of switchs of not conducting according to this capacitance, to proofread and correct an operational frequency bands of this adjustable antenna element.
In certain embodiments, this control method also comprises the following steps.During away from this adjustable antenna element, with the whole conductings of described a plurality of switchs, make this operational frequency bands of this adjustable antenna element toward the low frequency skew when this human body.On the contrary, when this adjustable antenna element of this human body approach, with part or all not conducting of described a plurality of switchs, make this operational frequency bands of this adjustable antenna element toward high frequency offset.All the other features of this control method are not repeated with described electronic installation and adjustable antenna element thereof are similar before.
Though the present invention discloses as above with preferred embodiment; so it is not to limit scope of the present invention; any those of ordinary skills; without departing from the spirit and scope of the present invention; when can do a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the scope that claim defines.
Claims (10)
1. electronic installation comprises:
One sensory panel;
One closes on sensor, is coupled to this sensory panel, and in order near the human body detecting and the capacitance between this sensory panel;
One controller is coupled to this and closes on sensor, and produces a control signal according to this capacitance; And
One adjustable antenna element is coupled to this controller, and comprises:
One primary radiation part;
A plurality of adjustment parts; And
A plurality of switchs are respectively coupled between described a plurality of adjustment part and this primary radiation part, and according to optionally conducting or the not conducting respectively of this control signal, to proofread and correct an operational frequency bands of this adjustable antenna element.
2. electronic installation as claimed in claim 1, wherein this vicinity sensor comprises a universal I/O Interface, and this controller is obtained this capacitance by this universal I/O Interface.
3. electronic installation as claimed in claim 1, wherein said a plurality of switchs are a plurality of diodes or a plurality of mos field effect transistor.
4. electronic installation as claimed in claim 1, wherein said a plurality of adjustment parts are a plurality of sheet metals.
5. electronic installation as claimed in claim 1, wherein said a plurality of adjustment parts are a plurality of Circuit tunings, and described a plurality of Circuit tuning comprises respectively one or more capacitors or inductor.
6. electronic installation as claimed in claim 1, wherein:
During away from this sensory panel, the whole conductings of described a plurality of switchs make this operational frequency bands of this adjustable antenna element toward the low frequency skew when this human body; And
When this sensory panel of this human body approach, part or all not conducting of described a plurality of switchs makes this operational frequency bands of this adjustable antenna element toward high frequency offset.
7. a method of controlling an adjustable antenna element of an electronic installation, comprise the following steps:
This adjustable antenna element is provided, and this adjustable antenna element comprises a primary radiation part, a plurality of adjustment part, and a plurality of switch, and wherein said a plurality of switchs are respectively coupled between described a plurality of adjustment part and this primary radiation part;
Near detecting a human body and the capacitance between this adjustable antenna element; And
Distinguish optionally conducting or the described a plurality of switchs of not conducting according to this capacitance, to proofread and correct an operational frequency bands of this adjustable antenna element.
8. control method as claimed in claim 7, wherein said a plurality of adjustment parts are a plurality of sheet metals.
9. control method as claimed in claim 7, wherein said a plurality of adjustment parts are a plurality of Circuit tunings, and described a plurality of Circuit tuning comprises respectively one or more capacitors or inductor.
10. control method as claimed in claim 7 also comprises:
During away from this adjustable antenna element, with the whole conductings of described a plurality of switchs, make this operational frequency bands of this adjustable antenna element toward the low frequency skew when this human body; And
When this adjustable antenna element of this human body approach, with part or all not conducting of described a plurality of switchs, make this operational frequency bands of this adjustable antenna element toward high frequency offset.
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CN2012101334918A CN103384025A (en) | 2012-05-02 | 2012-05-02 | Electronic device and control method thereof |
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CN2012101334918A CN103384025A (en) | 2012-05-02 | 2012-05-02 | Electronic device and control method thereof |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104811177A (en) * | 2015-04-17 | 2015-07-29 | 威海市泓淋电子有限公司 | Proximity sensing device and working band adjusting radio frequency system with self adaptability |
CN105991152A (en) * | 2015-03-06 | 2016-10-05 | 神讯电脑(昆山)有限公司 | Electronic device |
WO2019184748A1 (en) * | 2018-03-31 | 2019-10-03 | Oppo广东移动通信有限公司 | Electronic device |
CN112073072A (en) * | 2019-06-10 | 2020-12-11 | 三星电子株式会社 | Electronic device including frequency selection circuit connected to antenna and control method thereof |
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JP2011055428A (en) * | 2009-09-04 | 2011-03-17 | Murata Mfg Co Ltd | Antenna device |
TW201214864A (en) * | 2010-09-14 | 2012-04-01 | Compal Electronics Inc | Electronic device and control method thereof |
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CN1232325A (en) * | 1998-02-09 | 1999-10-20 | 日本电气株式会社 | Portable radio device |
KR20050067297A (en) * | 2003-12-27 | 2005-07-01 | 엘지전자 주식회사 | Method and apparatus of minimize body effect for mobile phone antenna |
US7477198B2 (en) * | 2006-02-15 | 2009-01-13 | Fujitsu Limited | Antenna apparatus and radio communication apparatus |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105991152A (en) * | 2015-03-06 | 2016-10-05 | 神讯电脑(昆山)有限公司 | Electronic device |
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CN104811177A (en) * | 2015-04-17 | 2015-07-29 | 威海市泓淋电子有限公司 | Proximity sensing device and working band adjusting radio frequency system with self adaptability |
WO2019184748A1 (en) * | 2018-03-31 | 2019-10-03 | Oppo广东移动通信有限公司 | Electronic device |
CN112073072A (en) * | 2019-06-10 | 2020-12-11 | 三星电子株式会社 | Electronic device including frequency selection circuit connected to antenna and control method thereof |
US11374319B2 (en) | 2019-06-10 | 2022-06-28 | Samsung Electronics Co., Ltd | Electronic device including frequency-selective circuit connected to antenna and control method thereof |
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Application publication date: 20131106 |