CN101026385A - Mobile communication devices - Google Patents
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- CN101026385A CN101026385A CNA2006101645964A CN200610164596A CN101026385A CN 101026385 A CN101026385 A CN 101026385A CN A2006101645964 A CNA2006101645964 A CN A2006101645964A CN 200610164596 A CN200610164596 A CN 200610164596A CN 101026385 A CN101026385 A CN 101026385A
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Abstract
A mobile communication device comprises an internal antenna device for receiving low-band signals of operating frequency band below 1 GHz, and the internal antenna device can be connected in series or parallel with an external antenna such as an earphone. The mobile communication device of the invention uses the internal antenna device for receiving low-band signals, enabling radio alarm function and timed recording of radio programs without plugging in an external earphone.
Description
Technical field
The invention relates to a kind of device for mobile communication, particularly have inside antenna and need not the extrapolation external headphones, promptly can receive the device for mobile communication of low band signal relevant for a kind of.
Background technology
The design of personal mobile communication device or wireless terminal device all is conceived to make product can have the external form of light weight, slim, exquisite (short and small), and takes into account excellent communication quality.With mobile phone (mobile phone) is example, and the outward appearance of streamline and small and exquisite external form add multi-functional application and cheap price, is the design focal point that is much accounted of most at present.
Need the antenna more than in the wireless telecommunications system, be able to by this a plurality of communication systems are integrated and used.Therefore, how in wireless telecommunications system, the size dimension of arranging a plurality of antennas and determining a plurality of antennas is set, becomes very important design problem then.A plurality of communication systems, the for example gsm system of 850/900/1800/1900MHz, WCDMA or CDMA200 system, Bluetooth system and 2400 or the WLAN (WLAN) of 5200/5800MHz, may need to be integrated in single mobile phone or the mobile phone, so the antenna of needs more than 3.Fortunately, GSM, WCDMA, CDMA2000, bluetooth and wlan system, the equal frequency band of operational applications more than 1GHz, if with the antenna that present 1/4 the most frequently used wavelength antennas comes designing institute to need, still can simultaneously a plurality of antennas be implemented on the inside of mobile phone (or mobile phone) device reluctantly.
Fig. 1 shows a wireless communication apparatus, and its internal integration has a plurality of radio communication units (or system).Among Fig. 1, wireless communication apparatus 100, for example be a mobile phone or mobile phone, comprise one transmitter and receiver/radio frequency (Transceiver/RF) unit 101, in order to the communication of processing with the radio base interstation, a fundamental frequency unit 102, one frequency modulation/amplitude modulation (FM/AM) unit 103,104, one bluetooth units, 105, one WiFi unit 106, one Digital Television (DTV) unit and a GPS unit 107.What be careful is high frequency (HF) unit, superfrequency (VHF) unit, and hyperfrequency (UHF) unit of picture FM/AM unit 103 and DTV unit 104 etc., its frequency of operation all is lower than 1GHz, therefore when adopting the design of 1/4 wavelength antennas, can need antenna than length and large-size.Because the length of FM/AM unit 103 or DTV unit 104 used antennas is oversize, so that be difficult to the casing inside of aerial integration to mobile phone or mobile phone.Usually, the manufacturer of mobile phone is if it were not for being arranged at the hand set machine shell outside with HF, VHF or UHF antenna, and the casing size with mobile phone strengthens the antenna that holds HF, VHF or UHF with coating exactly; Therefore, can influence the outward appearance of mobile phone or mobile phone unavoidablely, also increase manufacturing cost.
Fig. 2 shows the conventional mobile phone (or mobile phone) 200 with FM/AM unit 201.External headphones 202, when inserting earphone base 203, but double as is for receiving the antenna of FM/AM signal.The FM/AM signal is input to an antenna end 204 of above-mentioned FM/AM unit 201, and above-mentioned FM/AM unit 201 output stereophonic signal Ste_R and Ste_L be above-mentioned external headphones 202 extremely, or is sent to loudspeaker Sp_R and Sp_L by amplifier 205.Yet, must prepare earphone and just can listen to FM/AM broadcasting, quite inconvenience of user.In addition, if do not insert external headphones, the function that also can't use and set the FM/AM alarm clock, reaches timed recording FM program.
Summary of the invention
The invention relates to a kind of device for mobile communication, it has an inside antenna device in order to receiving the low band signal that frequency of operation is lower than 1GHz, and above-mentioned inside antenna device then is serial connection or and connects an exterior antenna that for example earphone constituted.
The present invention also is relevant to a kind of device for mobile communication, and it has an inside antenna device in order to reception low band signal (for example broadcast singal), and a low-band circuitry; By this, above-mentioned device for mobile communication can drive above-mentioned low-frequency channel need not to insert under the situation of an external headphones, carries out the function of setting the broadcasting alarm clock.
The present invention also is relevant to a kind of device for mobile communication, and it has an inside antenna device in order to reception low band signal (for example broadcast singal), and a low-band circuitry; By this, above-mentioned device for mobile communication can need not to insert under the situation of an external headphones, can carry out the function of timing recording to above-mentioned broadcast singal.
For reaching above-mentioned purpose, a device for mobile communication proposed by the invention, comprise: an earphone socket, comprise at least one first, second and third end, this first and second end is coupled to an external headphones of inserting this earphone socket with audio signal, the predetermined pilot wire that connects in this external headphones of the 3rd end; One low frequency band cells is handled low band signal to produce this audio signal, has an antenna end and couples the 3rd end; And, an inside antenna device, it is arranged in this device for mobile communication, has a signal feed side that couples this antenna end.
For reaching above-mentioned purpose, another device for mobile communication proposed by the invention, comprise: an earphone socket, comprise at least one first, second and third end, this first and second end is coupled to an external headphones of inserting this earphone socket, the predetermined pilot wire that connects in this external headphones of the 3rd end with audio signal; One low frequency band cells is handled low band signal to produce this audio signal, has an antenna end; And, an inside antenna device, it is arranged in this device for mobile communication, has a signal feed side and a link, is coupled to this antenna end and the 3rd end respectively.
Description of drawings
Fig. 1 shows a wireless communication apparatus, and its internal integration has a plurality of radio communication units (or system).
Fig. 2 shows the conventional mobile phone (or mobile phone) with FM/AM unit.
Fig. 3 represents the circuit block diagram of the mobile phone (or mobile phone) according to one embodiment of the invention.
Fig. 4 represents the line block diagram according to the mobile phone of another embodiment of the present invention.
Fig. 5 represents the line block diagram according to the mobile phone of another embodiment of the present invention.
Fig. 6 represents the line block diagram according to the mobile phone of another embodiment of the present invention.
Fig. 7 represents the line block diagram according to the mobile phone of another embodiment of the present invention.
Fig. 8 shows the circuit block diagram according to the mobile phone of one embodiment of the invention, and this mobile phone need not to insert an external headphones promptly can set the FM/AM alarm clock.
Fig. 9 shows the circuit block diagram according to the mobile phone of another embodiment of the present invention, and this mobile phone need not to insert an external headphones promptly can carry out timing recording (taped broadcast program) function.
Figure 10 shows the circuit block diagram according to the mobile phone of another embodiment of the present invention, and this mobile phone utilizes bluetooth unit transmit audio signals to a bluetooth earphone.
Drawing reference numeral:
100-600,800,900,950～mobile phone;
101～transmitter and receiver/radio frequency unit; 102,802～fundamental frequency unit;
103,201,302～frequency modulation/amplitude modulation unit;
104～Digital Television unit; 105,904～bluetooth unit;
106～WiFi unit; 107～GPS unit;
202,306～external headphones; 203,301～earphone socket;
204,307～antenna end; 303,603～inside antenna device;
304,309,808～amplifier; 305, SP R, SP L～loudspeaker;
308, T1～signal feed side;
The link of T2～inside antenna device;
First to the 3rd end of A, B, C～earphone socket;
Ste_R, Ste_L～stereo audio signal;
401,601～inductor; 402,602～match circuit;
501～switching device; Sc～control signal;
804～real-time clock timer; 806～GPIO port;
902～record device.
Embodiment
Following embodiment is with reference to appended graphic so that the present invention will be described in more detail.
Below to the description of embodiment of the present invention, all may bestly implement the sample attitude based on of the present invention, only in order to illustrating generic principles of the present invention, and be not in order to restriction the present invention.Claim of the present invention is when defining with appended claim.
For for purpose of brevity, hereinafter be to be example, to describe device for mobile communication of the present invention with mobile phone (or mobile phone).Yet application of the present invention is not limited only to mobile phone or mobile phone, and any wireless device all can be used technology of the present invention.Following graphic in, similar or identical part or unit are with identical number or symbolic representation.
Fig. 3 represents the circuit block diagram of the mobile phone (or mobile phone) according to one embodiment of the invention.Mobile phone 300 comprises an earphone socket 301, one low-band circuitry 302, one inside antenna devices 303, amplifier 304 and 309, and loudspeaker 305.For for purpose of brevity,, in Fig. 3, do not illustrate in order to allow mobile phone be able to radio frequency (RF) module and main antenna with the base station communication.Earphone socket 301 has at least one first end A, one second end B and one the 3rd end C; Wherein, the first end A and the second end B, will be by the stereo audio signal Ste_R and the Ste_L of amplifier 304 outputs, being coupled to an external headphones 306, the three end C that are inserted in earphone base 301 then is a pilot wire (being not illustrated in Fig. 3) that will couple in advance in the said external earphone 306.This pilot wire can be the earth connection of this external headphones 306, also can be other holding wire that is not used in this external headphones 306.
This low frequency band cells 302 is handled the low band signal that operational frequency bands are lower than 1GHz, and for example HF, VHF and UHF signal are to produce this stereo audio signal Ste_L and Ste_R.This stereo audio signal Ste_L and Ste_R are sent to this external headphones 306 and this loudspeaker 305 respectively after amplifier 304 and 309 amplifies.In this embodiment, this low frequency band cells 302 is FM/AM unit (or DTV unit), has the 3rd end C that an antenna end 307 is coupled to this earphone socket 301.Insert this earphone socket 301 when this external headphones 306, the pilot wire of external headphones 306 is then given this FM/AM single nothing 302 as an exterior antenna with reception FM/AM signal.
This inside antenna device 303 has a signal feed side 308 and couples this antenna end 307, and when this external headphones 306 was inserted this earphone socket 301, this inside antenna device 303 was to be state in parallel with this pilot wire (also being exterior antenna).Be noted that the dimensions length of inside antenna device 303 far is shorter than the dimensions length of pilot wire (exterior antenna) usually; Therefore, the input impedance meeting of inside antenna device is far above the input impedance of pilot wire, so when external headphones 306 was inserted earphone socket 301, pilot wire remained the main antenna that FM/AM unit 302 receives as the FM/AM signal.At this, inside antenna device 303 makes under FM/AM unit 302 situation that externally earphone 306 does not insert, and still can receive the FM/AM signal.
Fig. 4 represents the line block diagram according to the mobile phone of another embodiment of the present invention.Mobile phone 400 comprises that also the 3rd end C and that an inductor (or inductive means) 401 is connected in this earphone socket 301 is with reference between the ground connection, to provide ground signalling to this external headphones 306.This mobile phone 400 comprises that also a match circuit 402 couples between the antenna end 307 of the signal feed side 308 of this inside antenna device 303 and this FM/AM unit 302, in order to promote this inside antenna device 303 and this FM/AM unit 302 impedance matching between the two.
Fig. 5 represents the line block diagram according to the mobile phone of another embodiment of the present invention.Mobile phone 500 also comprises a switching device 501, couples the antenna end 307 of this FM/AM unit, the signal feed side 308 of this inside antenna device 303 and the 3rd end C of this earphone socket 301.This switching device 501 according to a control signal Sc, and optionally is coupled to this antenna end 307 with signal feed side 308 or the 3rd end C.This control signal Sc, can react the insertion of this external headphones 306 and give this switching device 501 suitable action, for example when this external headphones 306 is not inserted this earphone socket 301, then drive this switching device 501 signal feed side 308 is connected to antenna end 307; Otherwise, when this external headphones 306 is inserted these earphone sockets 301, then drive this switching device 501 the 3rd end C of earphone socket 301 be connected to antenna end 307.
Fig. 6 represents the line block diagram according to the mobile phone of another embodiment of the present invention.Mobile phone 600 shown in Fig. 6 except the configuration of inside antenna device 603, comprises almost the part identical with mobile phone 300 among Fig. 3.In this embodiment, inside antenna device 603 has the antenna end 307 that signal feed side T1 is coupled to FM/AM unit 302, and a link T2 is coupled to the 3rd end C of earphone socket 301.Therefore, when this external headphones 306 was inserted this earphone socket 301, this inside antenna device 603 was to constitute the kenel that is connected in series with the pilot wire (exterior antenna) of external headphones 306.When external headphones 306 was inserted this earphone socket 301, exterior antenna (pilot wire) and inside antenna device 603 were to operate together to receive the FM/AM signal.Again, when external headphones 306 was not inserted this earphone socket 301,603 in this inside antenna device made this FM/AM unit 302 can receive the FM/AM signal.
Fig. 7 represents the line block diagram according to the mobile phone of another embodiment of the present invention.Among the figure, mobile phone 600 also comprises an inductor (or inductive means) 601, is connected signal feed side T1 and with reference between the ground connection, provide one with reference to ground connection to this external headphones 306.Mobile phone 600 comprises that also a match circuit 602 is coupled between the antenna end 307 of the signal feed side T1 of this inside antenna device 603 and this FM/AM unit 302, to promote this inside antenna device 603 and this FM/AM unit 302 impedance matching between the two.
In Fig. 3 and embodiment shown in Figure 7, the length of each inside antenna device is 1/4 operative wavelength that is shorter than this inside antenna device itself, so is able to the inside antenna device is placed in the inside of mobile phone or mobile phone.Above-mentioned inside antenna device can be the antenna assembly that is disclosed as United States Patent (USP) (US patent US6,970,140); Or another U. S. application case of the present inventor: application case No.11/424,041,2006/06/14, denomination of invention " Antenna apparatus and mobile communication device usingthe same ", the antenna assembly that is disclosed.Yet, being noted that the inside antenna device that the present invention uses not is the antenna assembly that only can use above-mentioned two patent cases to disclose for being subject to, other inside antenna device also can be applicable to the present invention.
The present invention can facilitate multiple application function to be able to implement on mobile phone.Fig. 8 to Figure 10 represents to adopt the present invention and implement some embodiment of multiple application function on mobile phone.
Fig. 8 shows the circuit block diagram according to the mobile phone of one embodiment of the invention, and this mobile phone need not to insert an external headphones promptly can set the FM/AM alarm clock.Mobile phone 800 comprises an earphone socket 301, a FM/AM unit (low frequency band cells) 302, an inside antenna device 303, one first amplifier 309, loudspeaker 305 and a fundamental frequency unit 802.The 3rd end C of earphone socket 301 couples the antenna end 307 of FM/AM unit 302 and the signal feed side T1 of inside antenna device 303.Any selection of configuration (not icon) is that the signal feed side T1 of inside antenna device 303 and T2 end thereof are coupled the antenna end 307 of this FM/AM unit 302 and the 3rd end C of this earphone socket 301 respectively, and the 3rd end C is not connected to this antenna end 307.
Fig. 9 shows the circuit block diagram according to the mobile phone of another embodiment of the present invention, and this mobile phone need not to insert an external headphones promptly can carry out timing recording (for example, taped broadcast program) function.With reference to Fig. 9, the fundamental frequency unit 802 in the mobile phone 900 comprises that also a record device 902 couples GPIO port 806 and stereo audio signal Ste_R and Ste_L.The time of pre-recording can be set in the RTC timer 804, when RTC timer 804 arrives the time that sets, RTC timer 804 is sent a control signal by GPIO port 806, receives the FM/AM signals to activate FM/AM unit 302 when 302 un-activations of FM/AM unit (if) by inside antenna device 303.This record device 902 is recorded stereo audio signal Ste_R and Ste_L by GPIO port 806, therefore reaches the function of timing recording.
Device for mobile communication of the present invention has the inside antenna device in order to receiving the low band signal that operational frequency bands is lower than 1GHz, this inside antenna device can with as an external headphones of exterior antenna with serial connection or and the mode that connects be connected.Therefore, the device for mobile communication of the invention described above (having low frequency band cells) can not need use external headphones, only also can receive low-frequency band broadcast program (for example FM/AM or DTV program) against this inside antenna device.
Device for mobile communication of the present invention more can not use external headphones to be used as exterior antenna, and receives low band signal (for example FM/AM signal) with the inside antenna device.Above-mentioned device for mobile communication can drive its inner low frequency band cells that is provided with, and is not inserting under the situation of external headphones, carries out with radio broadcasting as alarm clock, and the function of timed recording broadcast program.
In addition, device for mobile communication of the present invention can also be equipped with bluetooth unit, and by this, the user is able to use bluetooth earphone to listen to the FM/AM broadcast program.
The present invention has disclosed preferred embodiment as above; only be used for helping to understand enforcement of the present invention; non-in order to limit spirit of the present invention; its scope of patent protection when on accompanying Claim and etc. same domain decide; and be familiar with this field skill person after comprehension spirit of the present invention; change retouching of being done and the variation that is equal to are replaced, and still do not break away from technical scope of the present invention.
Claims (31)
1. device for mobile communication comprises:
One earphone socket comprises at least one first, second and third end, and this first and second end is coupled to an external headphones of inserting described earphone socket with audio signal, the predetermined pilot wire that connects in this external headphones of the 3rd end;
One low frequency band cells is handled low band signal to produce described audio signal, comprises that an antenna end couples described the 3rd end; And
One inside antenna device is arranged in the described device for mobile communication, comprises that one couples the signal feed side of described antenna end.
2. device for mobile communication as claimed in claim 1 comprises that also an inductive means is coupled to described the 3rd end and with reference between the ground connection.
3. device for mobile communication as claimed in claim 2 comprises that also a match circuit is coupled between described signal feed side and the described antenna end.
4. device for mobile communication as claimed in claim 1, comprise that also a switching unit couples described the 3rd end, described signal feed side and described antenna end, in order to optionally to connect the 3rd end or this signal feed side according to a control signal to this antenna end.
5. device for mobile communication as claimed in claim 1, wherein when described external headphones was not inserted described earphone socket, described low frequency band cells received described low band signal by described inside antenna device.
6. device for mobile communication as claimed in claim 5, the operational frequency bands of wherein said inside antenna device is lower than 1GHz.
7. device for mobile communication as claimed in claim 6, wherein said low frequency band cells are frequency modulation/amplitude modulation unit or Digital Television unit.
8. device for mobile communication as claimed in claim 7 comprises that also one has the fundamental frequency unit of at least one real-time clock timer; Wherein when this real-time clock timer arrived a given time, the described frequency modulation/amplitude modulation of this fundamental frequency unit activating unit was to export described audio signal as the alarm clock signal.
9. device for mobile communication as claimed in claim 8, described fundamental frequency unit comprises that also a record device couples described audio signal; When described real-time clock timer arrived described given time, this record device then was actuated to this audio signal is carried out timed recording.
10. device for mobile communication as claimed in claim 7 comprises that also a bluetooth unit couples described audio signal, to transmit this audio signal to one bluetooth earphone.
11. device for mobile communication as claimed in claim 1, wherein when described external headphones was inserted described earphone socket, described pilot wire was as an exterior antenna.
12. a device for mobile communication comprises:
One earphone socket comprises at least one first, second and third end, and this first and second end is coupled to an external headphones of inserting this earphone socket, the predetermined pilot wire that connects in this external headphones of the 3rd end with audio signal;
One low frequency band cells is handled low band signal to produce described audio signal, has an antenna end; And
One inside antenna device is arranged in the described device for mobile communication, comprises that one couples the signal feed side of described antenna end, and a link that couples described the 3rd end.
13. device for mobile communication as claimed in claim 12 comprises that also an inductive means is coupled to described antenna end and with reference between the ground connection.
14. device for mobile communication as claimed in claim 13 comprises that also a match circuit is coupled between described signal feed side and the described antenna end.
15. device for mobile communication as claimed in claim 12, wherein when described external headphones was not inserted described earphone socket, described low frequency band cells received described low band signal by described inside antenna device.
16. device for mobile communication as claimed in claim 15, the operational frequency bands of wherein said inside antenna device is lower than 1GHz.
17. device for mobile communication as claimed in claim 16, wherein said low frequency band cells are a frequency modulation/amplitude modulation unit or Digital Television unit.
18. device for mobile communication as claimed in claim 17 also comprises a fundamental frequency unit; This fundamental frequency unit comprises at least one real-time clock timer, and when this real-time clock timer arrived a given time, the described low frequency cell of this fundamental frequency unit activating was with output audio signal.
19. device for mobile communication as claimed in claim 18, wherein said fundamental frequency unit comprises that also a record device couples described audio signal, when described real-time clock timer arrived described given time, this record device was actuated to this audio signal is carried out timed recording.
20. device for mobile communication as claimed in claim 17 comprises that also a bluetooth unit couples described audio signal, so that this audio signal is sent to a bluetooth earphone.
21. a device for mobile communication comprises:
One can be in order to connect the earphone socket of an external antenna device;
One inside antenna device is connected to described earphone socket; And
One low frequency band cells comprises an antenna end, and wherein said earphone socket and described inside antenna device all are coupled to this antenna end directly or indirectly.
22. device for mobile communication as claimed in claim 21, wherein said inside antenna device and described earphone socket are to be connected in series mutually or and to connect.
23. device for mobile communication as claimed in claim 21 also comprises an inductive means.
24. device for mobile communication as claimed in claim 21 comprises that also a match circuit is coupled between described inside antenna device and the described antenna end.
25. device for mobile communication as claimed in claim 21, comprise that also a switching unit is coupled to described inside antenna device, described earphone socket and described antenna end, in order to optionally this inside antenna device or this earphone socket are connected to this antenna end according to a control signal.
26. device for mobile communication as claimed in claim 21, wherein when described exterior antenna device did not insert described earphone socket, described low frequency band cells received low band signal by described inside antenna device.
27. device for mobile communication as claimed in claim 21, the operational frequency bands of wherein said inside antenna device is lower than 1GHz.
28. device for mobile communication as claimed in claim 21, wherein said low frequency band cells are a frequency modulation/amplitude modulation unit or Digital Television unit.
29. device for mobile communication as claimed in claim 28 also comprises a fundamental frequency unit, this fundamental frequency unit comprises at least one real-time clock timer; Wherein when this real-time clock timer arrives a scheduled time, the described frequency modulation/amplitude modulation of described fundamental frequency unit activating unit with output audio signal as the alarm clock signal.
30. device for mobile communication as claimed in claim 29, wherein said fundamental frequency unit comprises that also a record device couples described audio signal; Wherein when described real-time clock timer arrived described given time, this record device was activated so that this audio signal is carried out timed recording.
31. device for mobile communication as claimed in claim 29 comprises that also a bluetooth unit couples described audio signal to transmit this audio signal to one bluetooth earphone.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77557506P | 2006-02-22 | 2006-02-22 | |
| US60/775,575 | 2006-02-22 | ||
| US60/780,007 | 2006-03-07 | ||
| US11/424,032 | 2006-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101026385A true CN101026385A (en) | 2007-08-29 |
Family
ID=38744298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101645964A Pending CN101026385A (en) | 2006-02-22 | 2006-12-08 | Mobile communication devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101026385A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262428A (en) * | 2010-12-17 | 2013-08-21 | 泰景系统公司 | Whip antenna for mobile communication devices |
| CN103379402A (en) * | 2012-04-26 | 2013-10-30 | 深圳富泰宏精密工业有限公司 | Headphone jack circuit and portable electronic device with same |
| CN106027127A (en) * | 2015-03-26 | 2016-10-12 | 英特尔公司 | Antenna system |
| CN106207443A (en) * | 2016-07-14 | 2016-12-07 | 乐视控股（北京）有限公司 | Terminal signaling auxiliary antenna device, control method and terminal unit |
-
2006
- 2006-12-08 CN CNA2006101645964A patent/CN101026385A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262428A (en) * | 2010-12-17 | 2013-08-21 | 泰景系统公司 | Whip antenna for mobile communication devices |
| CN103262428B (en) * | 2010-12-17 | 2015-06-10 | 泰景系统公司 | Whip antenna for mobile communication devices |
| CN103379402A (en) * | 2012-04-26 | 2013-10-30 | 深圳富泰宏精密工业有限公司 | Headphone jack circuit and portable electronic device with same |
| CN106027127A (en) * | 2015-03-26 | 2016-10-12 | 英特尔公司 | Antenna system |
| CN106027127B (en) * | 2015-03-26 | 2019-09-24 | 英特尔公司 | Antenna system |
| CN106207443A (en) * | 2016-07-14 | 2016-12-07 | 乐视控股（北京）有限公司 | Terminal signaling auxiliary antenna device, control method and terminal unit |
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Open date: 20070829 |