CN107659681A - Drive circuit and driving method for metal rear shell mobile phone - Google Patents
Drive circuit and driving method for metal rear shell mobile phone Download PDFInfo
- Publication number
- CN107659681A CN107659681A CN201710891955.4A CN201710891955A CN107659681A CN 107659681 A CN107659681 A CN 107659681A CN 201710891955 A CN201710891955 A CN 201710891955A CN 107659681 A CN107659681 A CN 107659681A
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- metal parts
- mobile phone
- metal
- signal
- drive circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Set Structure (AREA)
- Telephone Function (AREA)
Abstract
The embodiment of the present application discloses a kind of drive circuit and driving method for metal rear shell mobile phone.One embodiment of the drive circuit includes：First metal parts, the second metal parts and capacitor；The reference ground of first metal parts and drive circuit connects；Second metal parts electrically connects with the control processor of mobile phone, for controlling the transmission of mobile phone signal, receiving；Wherein, the metal rear shell of mobile phone includes the first metal parts and the second metal parts, and the first metal parts and the second metal parts mutually insulated；The first end of capacitor electrically connects with the first metal parts, and the second end of capacitor electrically connects with the second metal parts.The embodiment is realizing that the second metal parts can be used as antenna, can also be by detecting the capacitance variations between the first metal parts and the second metal parts, to realize other functions while receiving, send mobile phone signal.
Description
Technical field
The application is related to communication technical field, and in particular to drive circuit and driving method for metal rear shell mobile phone.
Background technology
At present, it is most of to regard the part parting category of rear shell as antenna for metal rear shell mobile phone, so as to realize mobile phone and
Signal transmission between base station.Specifically as shown in Figure 1a, metal parts 11 is the upper end of mobile phone battery cover, is mainly used in mobile phone
Integrated support.Metal parts 12 is the lower end of mobile phone battery cover, is used as antenna.Meanwhile in metal parts 11 and metal parts 12
Between be provided with plastic strip 13, to play connection function.
Now, in order to realize the antenna function of metal parts 12, often it is internally provided with metal connection in plastic strip 13
Bridge 14.One end of metal connecting bridge 14 is connected with metal parts 11, and the other end of metal connecting bridge 14 connects with metal parts 12
Connect.In order to preferably protect metal connecting bridge 14, and make mobile phone battery cover more attractive in appearance, as shown in Figure 1 b, plastic strip 13 is towards hand
Surface on the outside of machine is flat surfaces, and the outer surface of mobile phone battery cover is collectively forming with metal parts 11,12.
However, the mobile phone battery cover of this structure, because metal parts 11 is connected by metal connecting bridge 14 with metal parts 12,
So the capacitance variations between metal parts 11 and metal parts 12 can not be obtained, also it cannot realize that other are more using it
Function.
The content of the invention
In view of drawbacks described above of the prior art, the embodiment of the present application, which provides, a kind of improved is used for metal rear shell mobile phone
Drive circuit and driving method, to solve the technical problem that background section above is mentioned.
In a first aspect, the embodiment of the present application provides a kind of drive circuit for metal rear shell mobile phone, the drive circuit
Including：First metal parts, the second metal parts and capacitor；The reference ground of first metal parts and drive circuit connects；The
Two metal parts electrically connect with the control processor of mobile phone, for controlling the transmission of mobile phone signal, receiving；Wherein, the gold of mobile phone
Category rear shell includes the first metal parts and the second metal parts, and the first metal parts and the second metal parts mutually insulated；Electricity
The first end of container electrically connects with the first metal parts, and the second end of capacitor electrically connects with the second metal parts.
In certain embodiments, the second end of capacitor and the link position of the second metal parts, to the second metal parts
Both ends distance, the wavelength positive correlation with mobile phone signal.
In certain embodiments, drive circuit also includes sensor, for detecting the first metal parts and the second metal portion
Capacitance between part.
In certain embodiments, the first end of sensor electrically connects with the second metal parts, the second end and the control of sensor
Processor electrical connection processed.
In certain embodiments, when the capacitance between the first metal parts and the second metal parts exceeds preset range value
When, sensor sends the first signal to control processor；Control processor adjusts the transmitting of mobile phone under the control of the first signal
Power.
Second aspect, the embodiment of the present application provide a kind of driving method for metal rear shell mobile phone, set on the mobile phone
Control processor and drive circuit are equipped with, drive circuit includes：First metal parts, the second metal parts and with the first metal portion
Part, the capacitor of the second metal parts electrical connection, wherein, the metal rear shell of mobile phone includes the first metal parts and the second metal portion
The reference ground connection of part, the first metal parts and drive circuit, the driving method include：Control processor is to the second metal parts
Transmitting cell-phone signal, and/or receive the second metal portion and transmit to the mobile phone signal of control processor；Capacitor is in mobile phone signal
Effect is lower to be turned on；Second metal parts sends mobile phone signal, and/or receives mobile phone signal to transmit to control processor.
In certain embodiments, drive circuit also includes the sensor electrically connected with the second metal parts, and method is also
Including：Control processor receives the first signal that sensor is sent；Under the control of the first signal, the transmitting work(of mobile phone is adjusted
Rate.
In certain embodiments, under the control of the first signal, the transmission power of mobile phone is adjusted, including：Obtain base station
Signal intensity, determine the scope of the transmission power of mobile phone；Scope based on determination, under the control of the first signal, adjust mobile phone
Transmission power.
In certain embodiments, when the capacitance between the first metal parts and the second metal parts exceeds preset range value
When, sensor sends the first signal.
The third aspect, the embodiment of the present application provide a kind of electronic equipment of metal rear shell, and the electronic equipment includes such as the
Drive circuit in one side described by any embodiment.
The drive circuit and driving method for metal rear shell mobile phone that the embodiment of the present application provides, by setting electric capacity
Device, the first metal parts of the metal rear shell of mobile phone can be electrically connected with the second metal parts.Meanwhile first metal parts with
The reference ground connection of drive circuit, and the second metal parts electrically connects with the control processor of mobile phone.So, when capacitor turns on
Afterwards, it is possible to achieve the conducting of the first metal parts and the second metal parts, so as to so that mobile phone is connect by the second metal parts
Mobile phone signal is sent in sending and receiving.Realize the antenna function of the second metal parts.In addition, the drive circuit of this structure can also obtain
The capacitance variations between the first metal parts and the second metal parts are taken, so as to realize more functions using it.And then
Abundant cell-phone function, improves Consumer's Experience.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other
Feature, objects and advantages will become more apparent upon：
Fig. 1 a are existing metal rear shells towards the surface texture schematic diagram on the inside of mobile phone；
Fig. 1 b are existing metal rear shells towards the surface texture schematic diagram on the outside of mobile phone；
Fig. 2 is a kind of structural representation of the embodiment for the drive circuit that the application provides；
Fig. 3 a are a kind of structural representations of embodiment of metal rear shell；
Fig. 3 b are the structural representations of another embodiment of metal rear shell；
Fig. 4 is the structural representation of another embodiment of the drive circuit that the application provides；
Fig. 5 is a kind of flow chart of the embodiment for the driving method that the application provides；
Fig. 6 is a kind of structural representation of the embodiment for the electronic equipment that the application provides.
Embodiment
The principle and feature of the application are described in further detail with reference to the accompanying drawings and examples.It is appreciated that
It is that specific embodiment described herein is used only for explaining related invention, rather than the restriction to the invention.Further need exist for
It is bright, for the ease of description, the part related to invention is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 2 is referred to, a kind of embodiment of the drive circuit for metal rear shell mobile phone provided it illustrates the application
Structural representation.As shown in Fig. 2 the drive circuit can include the first metal parts 21, the second metal parts 22 and electric capacity
Device 24.
In the present embodiment, the first metal parts 21 can be connected with the reference ground of drive circuit.Here reference ground is led to
Often refer to the zero-potential point of drive circuit, using the basic point position as other electronic components on mobile phone.Second metal parts 22 can be with
The control processor 23 of mobile phone electrically connects.Here control processor 23 can be CPU (central processing unit, the Central of mobile phone
Processing Unit).Wherein, the metal rear shell of the mobile phone can include the first metal parts 21 and the second metal parts 22,
And first metal parts 21 and the second metal parts mutually insulated.That is, the first metal parts 21 and the second metal parts
22 can be as a part for metal rear shell.
In the present embodiment, the first end of capacitor 24 can electrically connect with the first metal parts 21, and capacitor 24
Second end can electrically connect with the second metal parts 22.So, (radiofrequency signal is such as provided it) after capacitor 24 turns on, i.e.,
The conducting of the first metal parts 21 and the second metal parts 22 can be realized, so as in the first metal parts 21, the second metal portion
Loop is formed between part 22 and mobile phone, and then the second metal parts 22 can be made to receive, send mobile phone signal.That is, work as
After capacitor 24 turns on, the second metal parts 22 can realize antenna for mobile phone function, so as to realize the radio communication of mobile phone.
Further, since the first metal parts 21 and the second metal parts 22 are the electrical connections realized by capacitor 24, and
First metal parts 21 is the reference ground of mobile phone, so capacitor 24 can make the first metal parts 21 and the second metal parts 22
Between capacitance be maintained in certain range intervals and be not zero.So, capacitance between the two can also be carried out
Detection, to realize other functions.Such as after human body is held or contacts the metal rear shell of mobile phone, due to the conductive characteristic of human body,
The capacitance between the first metal parts 21 and the second metal parts 22 can be made to change.That is, now between the two
Capacitance can exceed above-mentioned range intervals.When capacitance changes, illustrate that user picks up mobile phone, now can be with
The screen of driving mobile phone brightens.
It is understood that the model of capacitor 24, position can be configured according to demand, it is in this application and unlimited
System.In addition, size, shape and relative position of the first metal parts 21 and the second metal parts 22 etc. is in this application equally not
Limitation.
As shown in Fig. 2 the first metal parts 21 can be the upper end of metal rear shell, and the second metal parts 22 can be gold
Belong to the lower end of rear shell.And in order to improve the support strength of the first metal parts 21, the size of the first metal parts 21 can be big
In the size of the second metal parts 22.And the size of the first metal parts 21 of increase, be advantageous to increase by the first metal parts 21
Contact area between human body.So as to increase the change of capacitance between the first metal parts 21 and the second metal parts 22
Change, be easy to detect.
As an example, as shown in Figure 3 a, the first metal parts 21 can be the lower end of metal rear shell, the second metal parts 22
The upper end of metal rear shell can be located at.Alternatively, as shown in Figure 3 b, the first metal parts 21 can be the middle part of metal rear shell,
Second metal parts 22 can be the top and bottom of metal rear shell.Further, in order to realize the firm stable of metal rear shell,
Connector 25 can be provided between first metal parts 21 and the second metal parts 22.Connector 25 can (but not limiting) as
Plastic strip, for realizing being fixedly connected between the first metal parts 21 and the second metal parts 22, and play insulating effect.Together
When, the structure of the metal rear shell in the application is simpler, is advantageous to simplify production technology, reduces production cost.
It should be noted that the working frequency of antenna generally can be divided into low frequency, intermediate frequency and high frequency.Wherein, working frequency is
Refer to all frequencies in the range of the beamwidth of antenna.The bandwidth of antenna typically refers to meet that antenna all refers to target frequency band range.And day
The working frequency of line is often relevant with the factor such as the size of antenna, i.e. the working frequency of antenna is higher, and the wavelength of induction signal is got over
Short, then the length of antenna is also shorter.Therefore, the link position of the second end of capacitor 24 and the second metal parts 22 is (in such as Fig. 2
Shown A points), to the distance (L1 and L2 as shown in Figure 2) at the both ends of the second metal parts 22, the wavelength with mobile phone signal
Positive correlation.That is, according to the difference of the size of the second metal parts of existing metal rear shell and the difference of mobile phone signal, can
To adjust position of the A points on the second metal parts 22.
The drive circuit that the embodiment of the present application provides, can be by the first of the metal rear shell of mobile phone by setting capacitor
Metal parts electrically connects with the second metal parts.Meanwhile first the reference ground of metal parts and drive circuit connect, and the second gold medal
Category part electrically connects with the control processor of mobile phone.So, after capacitor turns on, it is possible to achieve the first metal parts and second
The conducting of metal parts, so as to so that mobile phone is received by the second metal parts, sends mobile phone signal.Realize the second metal
The antenna function of part.In addition, the drive circuit of this structure can also obtain the first metal parts and the second metal parts it
Between capacitance variations, so as to realize more functions using it.And then abundant cell-phone function, improve Consumer's Experience.
With continued reference to Fig. 4, another reality of the drive circuit for metal rear shell mobile phone provided it illustrates the application
Apply the structural representation of example.It is that the drive circuit in the present embodiment can equally include with the drive circuit identical shown in Fig. 2
First metal parts 21, the second metal parts 22 and capacitor 24.Structural relation between three may refer in Fig. 2 embodiments
Associated description, here is omitted.
Unlike the drive circuit shown in Fig. 2, the drive circuit in the present embodiment can also include sensor 26, use
Capacitance between the first metal parts 21 of detection and the second metal parts 22.Here sensor can be grip sensor
(grip sensor)。
As shown in figure 4, the first end of sensor 26 can electrically connect with the second metal parts 22, and the second of sensor 26
End can electrically connect with the control processor 23 of mobile phone.So, when sensor 26 detects the first metal parts 21 and the second gold medal
When capacitance between category part 22 exceeds preset range value, sensor 26 can send first to the control processor 23 of mobile phone
Signal.Now, control processor 23 can adjust the transmission power of mobile phone under the control of the first signal.Here default model
Enclosing value can be set according to actual conditions.
For example, after the first metal parts 21 of the metal rear shell of human contact's mobile phone, the first metal parts 21 and the second gold medal
Capacitance between category part 22 may exceed preset range value.When sensor 26 detects that the capacitance exceeds preset range
During value, the first signal can be sent to control processor 23.So, control processor 23 is after the first signal is received, can be with
The transmission power of mobile phone is reduced, so as to reduce SAR (Specific Absorption Ratio, specific absorption rate) value, with reduction pair
The influence of health.Here SAR is often referred to the electromagnetic radiation energy of the material absorbing of unit mass in the unit interval.It is international
It is upper to weigh the fuel factor of terminal radiation usually using SAR value.
It is pointed out that while the transmission power of control processor adjustment mobile phone, it should to ensure that mobile phone can be with
Proper communication between base station, other electronic equipments.That is, on the premise of mobile phone proper communication is ensured, when detecting
Capacitance exceeds preset range value (i.e. human testing), and control processor can suitably reduce the transmission power of mobile phone.
The embodiment of the present application additionally provides a kind of driving method for metal rear shell mobile phone.It can be provided with the mobile phone
Control processor and drive circuit.The drive circuit can include：First metal parts, the second metal parts and with the first metal
Part, the capacitor of the second metal parts electrical connection.Wherein, the metal rear shell of mobile phone can include the first metal parts and second
Metal parts.And first the reference ground of metal parts and drive circuit connect.Fig. 5 specifically is may refer to, it illustrates the application
A kind of flow chart of embodiment of the driving method of offer.The driving method may comprise steps of：
Step 501, control processor is to the second metal parts transmitting cell-phone signal, and/or receives the transmission of the second metal portion
To the mobile phone signal of control processor.
In the present embodiment, the control processor of mobile phone or control processor control other electronic components (to be driven as integrated
Dynamic IC circuit) can be to the second metal parts transmitting cell-phone signal.And/or control processor can receive the second metal parts biography
The mobile phone signal that defeated mobile phone signal, i.e. base station or other electronic equipments are transmitted by the second metal parts to the mobile phone.Here
Mobile phone signal be the signal transmitted between the mobile phone and base station or other electronic equipments.
Step 502, capacitor turns in the presence of mobile phone signal.
In the present embodiment, because the reference ground of the first metal parts and drive circuit connects, and the second metal parts connects
The mobile phone signal of receipts is high-frequency signal.So, can be turned on the capacitor that both electrically connect.
Step 503, the second metal parts sends mobile phone signal, and/or receives mobile phone signal to transmit to control processor.
In the present embodiment, in the case where capacitor is in the conduction state, the second metal parts and the first metal parts can be made
Between turn on electrical connection.Such second metal parts can be for use as antenna.Now, the second metal parts can be by control process
Device or control processor control the mobile phone signal that other electronic components transmit to it, are sent to base station or other electronic equipments.And
The mobile phone signal that second metal parts can also receive base station or other electronic equipments are sent, and the mobile phone signal is transferred to this
The control processor of mobile phone or other electronic components, to be communicated.
In the present embodiment, control processor or other electronic components can also detect the first metal parts and the second metal
Capacitance between part.And by the change of capacitance, further to realize the control of other functions.If capacitance is beyond steady
When determining scope, illustrate that current phone may can control mobile phone with human contact, control processor, so that the screen point of mobile phone
It is bright.
In some optional implementations of the present embodiment, drive circuit can also include being electrically connected with the second metal parts
The sensor connect.Sensor can electrically connect with the second metal parts, for detecting the first metal parts and the second metal parts
Between capacitance.Now, this method can also include：Control processor receives the first signal that sensor is sent；First
Under the control of signal, the transmission power of mobile phone is adjusted.
As an example, the first signal here can be the capacitance between the first metal parts and the second metal parts.
Control processor is after first signal is received, it can be determined that whether it is in preset range value (when i.e. not with human contact
Stability range).And when it is determined that first signal exceeds preset range value, illustrate mobile phone and human contact, control process
Device can adjust the transmission power of mobile phone, to reduce mobile phone radiation, reduce the influence to health.
Alternatively, the first signal here can also be feedback signal.Now, sensor can in real time or periodically be sentenced
Capacitance is powered off whether in preset range value.When it is determined that the capacitance exceeds preset range, sensor can be to control process
Device sends the first signal, to trigger the transmission power of control processor adjustment mobile phone.
Further, in order to ensure the proper communication of mobile phone, control processor, first can be with after the first signal is received
Obtain the signal intensity of base station.Then according to the signal intensity of base station, it may be determined that the scope of the transmission power of current phone.I.e.
The signal intensity of base station is weaker, and the transmission power of mobile phone can be higher.So, the scope of the transmission power based on current phone, control
Processor processed under the control of the first signal, can adjust the transmission power of mobile phone.
It is understood that the capacitance variation between the first metal parts and the second metal parts is bigger, illustrate current
Contact distance of the mobile phone with human body is nearer.At this point it is possible to according to the variable quantity of capacitance, to determine the tune of the transmission power of mobile phone
Whole amount.
In application scenes, when the capacitance between the first metal parts and the second metal parts is recovered to default model
When enclosing in value, illustrate current phone and human body not in contact with.Now, sensor can stop sending the first signal.So that control
Processor stops the transmission power of adjustment mobile phone, so that the intensity of mobile phone signal recovers the intensity to adjustment.Or sensor
Secondary signal can be sent to control processor.So, control processor adjusts again in the case where receiving secondary signal
The transmission power of mobile phone.Such as increase the transmission power of mobile phone, improve the signal intensity of mobile phone.
The driving method that the embodiment of the present application provides, by that to the second metal parts transmitting cell-phone signal, can make and two
The capacitor conducting of person's (the first metal parts and the second metal parts) electrical connection, and then can be carried out by the second metal parts
The reception and transmission of mobile phone signal.Realize the antenna function of the second metal parts.In addition, the driving method of this application is also
The capacitance variations between the first metal parts and the second metal parts can be obtained, so as to realize more work(using it
Energy.And then abundant cell-phone function, improve Consumer's Experience.
The embodiment of the present application additionally provides a kind of electronic equipment of metal rear shell.The electronic equipment can include above-mentioned each reality
Apply the drive circuit described by example.The electronic equipment can be provided with metal rear shell and utilization part metals rear shell reality to be various
The electronic equipment of existing antenna function, such as tablet personal computer, wearable device, mobile phone.As an example, the electronic equipment can be such as
Shown in Fig. 6, a kind of structural representation of embodiment of the electronic equipment of the application offer is gone out in fact.
As shown in fig. 6, the electronic equipment is by setting capacitor, it is possible to achieve the day of the second metal parts of metal rear shell
Line function.So electronic equipment can carry out radio communication by the second metal parts and other electronic equipments, so as to
Content of Communication is shown in the display screen 601 installed thereon.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, carried out by above-mentioned technical characteristic or its equivalent feature
The other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (10)
1. a kind of drive circuit for metal rear shell mobile phone, it is characterised in that the drive circuit includes：First metal portion
Part, the second metal parts and capacitor；
First metal parts is connected with the reference ground of the drive circuit；
Second metal parts electrically connects with the control processor of the mobile phone, for controlling the transmission of mobile phone signal, receiving；
Wherein, the metal rear shell of the mobile phone includes first metal parts and second metal parts, and described first
Metal parts and the second metal parts mutually insulated；
The first end of the capacitor electrically connects with first metal parts, the second end of the capacitor and second gold medal
Belong to part electrical connection.
2. drive circuit according to claim 1, it is characterised in that the second end of the capacitor and second metal
The link position of part, to the distance at the both ends of second metal parts, the wavelength positive correlation with the mobile phone signal.
3. drive circuit according to claim 1, it is characterised in that the drive circuit also includes sensor, for examining
The capacitance surveyed between first metal parts and second metal parts.
4. drive circuit according to claim 3, it is characterised in that the first end of the sensor and second metal
Part electrically connects, and the second end of the sensor electrically connects with the control processor.
5. drive circuit according to claim 4, it is characterised in that when first metal parts and second metal
When capacitance between part exceeds preset range value, the sensor sends the first signal to the control processor；
The control processor adjusts the transmission power of the mobile phone under the control of first signal.
6. a kind of driving method for metal rear shell mobile phone, its feature exists, and control processor and drive are provided with the mobile phone
Dynamic circuit, the drive circuit include：First metal parts, the second metal parts and with first metal parts, described
The capacitor of two metal parts electrical connection, wherein, the metal rear shell of the mobile phone includes first metal parts and described the
Two metal parts, first metal parts are connected with the reference ground of the drive circuit, and the driving method includes：
The control processor is to the second metal parts transmitting cell-phone signal, and/or receives the second metal portion transmission
To the mobile phone signal of the control processor；
The capacitor turns in the presence of the mobile phone signal；
Second metal parts sends the mobile phone signal, and/or receives the mobile phone signal to transmit to the control
Manage device.
7. driving method according to claim 6, it is characterised in that the drive circuit also includes and second metal
The sensor of part electrical connection, and methods described also include：
The control processor receives the first signal that the sensor is sent；
Under the control of first signal, the transmission power of the mobile phone is adjusted.
8. driving method according to claim 7, it is characterised in that described under the control of first signal, adjustment
The transmission power of the mobile phone, including：
The signal intensity of base station is obtained, determines the scope of the transmission power of the mobile phone；
Scope based on determination, under the control of first signal, adjust the transmission power of the mobile phone.
9. driving method according to claim 7, it is characterised in that when first metal parts and second metal
When capacitance between part exceeds preset range value, the sensor sends the first signal.
10. a kind of electronic equipment of metal rear shell, it is characterised in that the electronic equipment is included such as one of claim 1-5 institutes
The drive circuit stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891955.4A CN107659681B (en) | 2017-09-27 | 2017-09-27 | Drive circuit and drive method for metal back shell mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710891955.4A CN107659681B (en) | 2017-09-27 | 2017-09-27 | Drive circuit and drive method for metal back shell mobile phone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107659681A true CN107659681A (en) | 2018-02-02 |
| CN107659681B CN107659681B (en) | 2020-07-28 |
Family
ID=61116241
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710891955.4A Active CN107659681B (en) | 2017-09-27 | 2017-09-27 | Drive circuit and drive method for metal back shell mobile phone |
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| CN (1) | CN107659681B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982896A (en) * | 2010-09-28 | 2011-03-02 | 圆刚科技股份有限公司 | Antenna device |
| US20130040712A1 (en) * | 2010-04-27 | 2013-02-14 | Panasonic Corporation | Wireless terminal |
| CN103311671A (en) * | 2012-03-13 | 2013-09-18 | 宏碁股份有限公司 | Adjustable slot antenna |
| CN106887677A (en) * | 2017-02-28 | 2017-06-23 | 北京小米移动软件有限公司 | Antenna and terminal |
| CN106972237A (en) * | 2017-04-14 | 2017-07-21 | 深圳市信维通信股份有限公司 | Ultrawide band high performance NFC antenna system based on shell after metal |
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2017
- 2017-09-27 CN CN201710891955.4A patent/CN107659681B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130040712A1 (en) * | 2010-04-27 | 2013-02-14 | Panasonic Corporation | Wireless terminal |
| CN101982896A (en) * | 2010-09-28 | 2011-03-02 | 圆刚科技股份有限公司 | Antenna device |
| CN103311671A (en) * | 2012-03-13 | 2013-09-18 | 宏碁股份有限公司 | Adjustable slot antenna |
| CN106887677A (en) * | 2017-02-28 | 2017-06-23 | 北京小米移动软件有限公司 | Antenna and terminal |
| CN106972237A (en) * | 2017-04-14 | 2017-07-21 | 深圳市信维通信股份有限公司 | Ultrawide band high performance NFC antenna system based on shell after metal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107659681B (en) | 2020-07-28 |
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