CN106612377B - A kind of circuit, mobile terminal and method controlling dual camera - Google Patents
A kind of circuit, mobile terminal and method controlling dual camera Download PDFInfo
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- CN106612377B CN106612377B CN201710020866.2A CN201710020866A CN106612377B CN 106612377 B CN106612377 B CN 106612377B CN 201710020866 A CN201710020866 A CN 201710020866A CN 106612377 B CN106612377 B CN 106612377B
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- camera
- power supply
- connect
- control unit
- source
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/65—Control of camera operation in relation to power supply
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/52—Details of telephonic subscriber devices including functional features of a camera
Abstract
The embodiment of the present invention provides a kind of circuit, mobile terminal and method for controlling dual camera, the circuit can include: the first camera, second camera, the first power supply, second source and control unit, wherein: the first power supply is the power supply of the first camera, and second source is second camera power supply；The first end of first camera and the first end of control unit connect, and the first end of second camera and the second end of control unit connect, and control unit is used for the synchronous signal transmission between the first camera and second camera；For detecting, whether only one camera works control unit in the first camera and second camera, if so, the circuit between the first end and second end of control control unit disconnects.In this way, disconnecting the circuit of synchronous signal transmission between two cameras when the work of only one camera, such synchronization signal would not leak electricity to idle camera, eliminate security risk.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of circuit, mobile terminal and methods for controlling dual camera.
Background technique
With the rapid development of mobile terminal, more and more mobile terminals be equipped with dual camera with support 3D take pictures or
Other effects of person are taken pictures, and are equipped with the mobile terminal of dual camera increasingly by the welcome of user.But dual camera it
Between need a synchronization signal to keep the synchronization of dual camera, which can be by the same power supply power supply, can also be with
By different power supply power supplies.When dual camera is by different power supply power supplies, if only one camera works in dual camera,
Synchronization signal electric leakage be will lead to idle camera, there are security risks.
Summary of the invention
The embodiment of the present invention provides a kind of circuit, mobile terminal and method for controlling dual camera, to solve when double camera shootings
When head is by different power supply power supplies, if only one camera works in dual camera, synchronization signal electric leakage will lead to not
, there is security risk in the camera of work.
In a first aspect, the embodiment of the present invention provides a kind of circuit for controlling dual camera, comprising: the first camera, second
Camera, the first power supply, second source and control unit, in which:
First power supply is first camera power supply, and the second source is second camera power supply；
The first end of first camera and the first end of described control unit connect, and the first of the second camera
End is connect with the second end of described control unit, and described control unit is used in first camera and the second camera
Between synchronous signal transmission；
For detecting, whether only one is imaged described control unit in first camera and the second camera
Head work, if so, the circuit between the first end and second end of control described control unit disconnects.
Second aspect, the embodiment of the present invention also provide a kind of mobile terminal, including control pair provided in an embodiment of the present invention
The circuit of camera.
The third aspect, the embodiment of the present invention also provide a kind of method for controlling dual camera, are applied to mobile terminal, packet
It includes:
When the mobile terminal the first camera work and second camera do not work when, will first camera and
The circuit of synchronous signal transmission disconnects between the second camera；
And when the second camera of the mobile terminal works and the first camera does not work, described first is imaged
The circuit of synchronous signal transmission disconnects between head and the second camera.
In this way, controlling the circuit of dual camera in the embodiment of the present invention, comprising: the first camera, second camera,
One power supply, second source and control unit, in which: first power supply is first camera power supply, the second source
For second camera power supply；The first end of the first end of first camera and described control unit connects, and described the
The second end of the first ends of two cameras and described control unit connects, described control unit be used for first camera with
Synchronous signal transmission between the second camera；Described control unit is taken the photograph for detecting first camera and described second
Whether only one camera works in picture head, if so, the electricity between the first end and second end of control described control unit
Road disconnects.In this way, disconnect the circuit of synchronous signal transmission between two cameras when the work of only one camera, this
Sample synchronization signal would not leak electricity to idle camera, eliminate security risk.
Detailed description of the invention
Fig. 1 is a kind of electrical block diagram for controlling dual camera provided in an embodiment of the present invention；
Fig. 2 is the electrical block diagram of another control dual camera provided in an embodiment of the present invention；
Fig. 3 is the electrical block diagram of another control dual camera provided in an embodiment of the present invention；
Fig. 4 is the electrical block diagram of another control dual camera provided in an embodiment of the present invention；
Fig. 5 is the electrical block diagram of another control dual camera provided in an embodiment of the present invention；
Fig. 6 is the electrical block diagram of another control dual camera provided in an embodiment of the present invention；
Fig. 7 is the electrical block diagram of another control dual camera provided in an embodiment of the present invention；
Fig. 8 is a kind of flow chart of method for controlling dual camera provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
First embodiment
Refering to fig. 1, Fig. 1 is a kind of structural schematic diagram of circuit for controlling dual camera provided in an embodiment of the present invention, such as
Shown in Fig. 1, the circuit 100 for controlling dual camera includes: the first camera 101, second camera 102, the first power supply 103,
Two power supplys 104 and control unit 105, in which:
First power supply 103 is first camera 101 power supply, and the second source 104 is second camera shooting
First 102 power supply；
The first end of first camera 101 is connect with the first end of described control unit 105, the second camera
102 first end is connect with the second end of described control unit 105, and described control unit 105 is used in first camera
The synchronous signal transmission between the second camera；
Described control unit 105 is for detecting in first camera and the second camera whether only one is taken the photograph
As head work, if so, the circuit between the first end and second end of control described control unit disconnects.
In the embodiment of the present invention, above-mentioned first camera and second camera can be two postpositions camera shooting of mobile terminal
Head, or it is also possible to the front camera and rear camera of mobile terminal.Above-mentioned first camera 101 and second camera
102 by control unit 105 come synchronous signal transmission, which can keep same between two cameras of mobile terminal
Step.
In the embodiment of the present invention, the circuit between the first end and second end of above-mentioned control described control unit 105 is disconnected,
It can be the control for being also possible to be carried out by certain several switch co- controlling by a switch, naturally it is also possible to be in control list
The control that face has the circuit of switching function to carry out, such as the control that triode or metal-oxide-semiconductor carry out.
In the embodiment of the present invention, above-mentioned mobile terminal can be mobile phone, tablet computer (Tablet with dual camera
Personal Computer), laptop computer (Laptop Computer), personal digital assistant (personal digital
Assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) or wearable device
(Wearable Device) etc..
One kind of the embodiment of the present invention controls the circuit of dual camera, comprising: the first camera 101, second camera
102, the first power supply 103, second source 104 and control unit 105, in which: first power supply 103 is first camera
101 power supplies, the second source 104 are the second camera 102 power supply；The first end of first camera 101 and institute
State the first end connection of control unit 105, the first end of the second camera 102 and the second end of described control unit 105
Connection, described control unit 105 are used for the synchronous signal transmission between first camera and the second camera；It is described
For detecting, whether only one camera works control unit 105 in first camera and the second camera, if
It is that the circuit then controlled between the first end and second end of described control unit disconnects.In this way, when only one camera works
When, the circuit of synchronous signal transmission between two cameras is disconnected, such synchronization signal, which would not leak electricity to idle, to be taken the photograph
As head, security risk is eliminated.
Second embodiment
Referring to Fig.2, Fig. 2 is the structural schematic diagram of the circuit of another control dual camera provided in an embodiment of the present invention,
As shown in Fig. 2, the circuit 100 of control dual camera includes:
First camera 101, second camera 102, the first power supply 103, second source 104, third power supply the 1051, the 4th
Power supply 1052, diode 1053 and the first NMOS tube 1054；
First power supply 103 is first camera 101 power supply, and the second source 104 is second camera shooting
First 102 power supply；
Wherein, the first end of first camera 101 is connect with the source electrode of first NMOS tube 1054, and described second
The first end of camera 102 is connect with the drain electrode of first NMOS tube 1054, and the third power supply 1051 is taken the photograph with described first
As first 101 second end connection, the 4th power supply 1052 is connect with the second end of the second camera 102, the third
Power supply 1051 is connect with the grid of first NMOS tube 1054, and is connect with the anode of the diode 1053, described two
The cathode of pole pipe 1053 is connect with the 4th power supply 1052；
First NMOS tube is in first power supply and the third power supply power supply, the second source and the described 4th
When power supply is not powered, source electrode and drain electrode are disconnected；
And first NMOS tube is in the second source and the 4th power supply power supply, first power supply and described
When third power supply is not powered, source electrode and drain electrode are disconnected.
In the embodiment of the present invention, the working principle of above-mentioned NMOS tube is understood that.When the grid voltage of NMOS tube is big
When source voltage, the source electrode and drain electrode of NMOS tube is turned on；When the grid voltage of NMOS tube is not more than source voltage, NMOS
The source electrode and drain electrode of pipe just disconnects, popular understanding it is considered that controlled by the grid for controlling NMOS tube NMOS tube source electrode with
Conducting and disconnection between drain electrode.
In the embodiment of the present invention, when the first camera 101 and second camera 102 work at the same time, need to believe by synchronous
It number synchronizes, the source electrode of the first NMOS tube 1054 can be 1.8V at this time, and third power supply and the 4th power supply can export 2.8V
Power supply, i.e. the grid of the first NMOS tube 1054 is 2.8V at this time, since the voltage of grid is greater than the voltage of source electrode, grid and drain electrode
Conducting, the synchronization signal of two cameras links together at this time.
When the work of only the first camera 101, third power supply 1051 can be 2.8V, and the 4th power supply 1052 is 0V, this
When diode 1053 be connected, at this time the grid voltage of the first NMOS tube 1054 be diode 1053 conducting voltage, about 0.7V, source
Pole tension 1.8V, the voltage of grid are less than the voltage of source electrode, and source electrode and drain electrode disconnects at this time, so that synchronization signal will not be from first
Second camera 102 is arrived in the electric leakage of camera 101.
When only second camera 102 works, third power supply 1051 is 0V, and the 4th power supply 1052 can be 2.8V, two
Pole pipe 1053 is reversely ended, and grid voltage 0V, source electrode 0V, the first NMOS tube 1054 is not turned at this time, thus synchronization signal
It will not leak electricity from second camera to the first camera.
Optionally, as shown in figure 3, the circuit 100 further includes first resistor 1055, the third power supply 1051 with it is described
The first end of first resistor 1055 connects, and the second end of the first resistor 1055 is connect with the anode of the diode 1053,
And it is connect with the grid of first NMOS tube 1054.
In the embodiment of the present invention, above-mentioned first resistor 1055 can be understood as a pull-up resistor, play the role of current limliting.
3rd embodiment
It is the structural schematic diagram of the circuit of another control dual camera provided in an embodiment of the present invention refering to Fig. 4, Fig. 4,
As shown in figure 4, the circuit 100 of control dual camera includes:
First camera 101, second camera 102, the first power supply 103, second source 104, the first PMOS tube 1056,
Two PMOS tube 1057, the second NMOS tube 1058 and the 5th power supply 1059；
First power supply 103 is first camera 101 power supply, and the second source 104 is second camera shooting
First 102 power supply；
Wherein, the first end of first camera 101 is connect with the source electrode of second PMOS tube 1057, and described second
The first end of camera 102 is connect with the drain electrode of second PMOS tube 1057, the grid of second PMOS tube 1057 and institute
The drain electrode for stating the first PMOS tube 1056 is connected with the drain electrode of second NMOS tube 1058, the source electrode of first PMOS tube 1056
It is connect with the 5th power supply 1059, the source electrode ground connection of second NMOS tube 1058, the second source 104 and described first
The grid of PMOS tube 1056 is connected with the grid of second NMOS tube 1058；
Second PMOS tube is in first power supply and the 5th power supply power supply, when the second source is not powered,
Source electrode and drain electrode disconnect；
And second PMOS tube, in the second source and the 5th power supply power supply, first power supply is not powered
When, source electrode and drain electrode disconnect.
In the embodiment of the present invention, the working principle of above-mentioned PMOS tube is understood that.When the grid voltage of PMOS tube is small
When source voltage, the source electrode and drain electrode of PMOS tube is turned on；When the grid voltage of PMOS tube is not less than source voltage, PMOS
The source electrode and drain electrode of pipe just disconnects, popular understanding it is considered that controlled by the grid for controlling PMOS tube PMOS tube source electrode with
Conducting and disconnection between drain electrode.
In the embodiment of the present invention, when the first camera 101 and second camera 102 work at the same time, due to being taken the photograph to first
As first 101 power on, the source of the second PMOS tube 1057 can have the voltage of 1.8V, to the electricity of 1.8V on second source, at this time second
The grid voltage of NMOS tube 1058 has 1.8V, and the source electrode of the second NMOS tube 1058 is grounded, voltage 0V, so the second NMOS tube
1058 conductings, the drain voltage of the second NMOS tube 1058 conducting are 0V, and the grid of such second PMOS tube 1057 is 0V.At this time by
It is less than source voltage in the grid voltage of the second PMOS tube 1057, so the second PMOS tube 1057 is connected, 101 He of the first camera
Second camera 102 is linked together by synchronization signal.
When the work of only the first camera 101, second source 104 is 0V, and the first PMOS tube 1056 is connected at this time, first
The drain electrode of PMOS tube 1056 has 1.8V voltage, so that the grid of the second PMOS tube 1057 also has 1.8V voltage, and the second PMOS tube
1057 source electrode also has 1.8V voltage, and the source electrode of the second PMOS tube 1057 and drain electrode disconnect at this time, and synchronization signal would not be from the
One camera 101 flows to second camera 102, ensure that safety.
When only second camera 102 works, second source 104 is 1.8V, and the second NMOS tube 1058 is connected at this time, the
The drain voltage of two NMOS tubes 1058 is 0V, so that the grid voltage of the second PMOS tube 1057 is also 0V, due to the first camera
101 do not work, so the source voltage of the second PMOS tube 1057 is 0V, the second PMOS tube 1057 is not turned at this time, synchronization signal
The first camera will not be flowed to from second camera 102, ensure that safety.
Optionally, as shown in figure 5, the circuit 100 further includes second resistance 10510, the 5th power supply 1059 passes through
The second resistance 10510 is connect with the source electrode of first PMOS tube 1056.
In the embodiment of the present invention, above-mentioned second resistance 10510 can be understood as a pull-up resistor, it plays current limliting
Effect, can protect circuit.
Optionally, as shown in fig. 6, described control unit 105 further includes 3rd resistor 10511, second NMOS tube
1058 source electrode is grounded by the 3rd resistor 10511.
In the embodiment of the present invention, above-mentioned 3rd resistor 10511 can be understood as a pull down resistor, it plays current limliting
Effect, can protect circuit.
Fourth embodiment
It is the structural schematic diagram of the circuit of another control dual camera provided in an embodiment of the present invention referring to Fig. 7, Fig. 7,
As shown in fig. 7, the circuit 100 of control dual camera includes:
First camera 101, second camera 102, the first power supply 103, second source 104, control unit 105, first
Serial time clock line 106, the first serial data line 107, the second serial time clock line 108 and the second serial data line 109；
Wherein, first power supply 103 is connect with the third end of first camera 101, and first power supply 103 is logical
It crosses first serial time clock line 106 to connect with the 4th end of first camera 101, and passes through first serial number
It is connect according to line 107 with the 5th end of first camera 101；
The second source 104 is connect with the third end of the second camera 102, passes through second serial time clock line
108 connect with the 4th end of the second camera 102, and are taken the photograph by second serial data line 109 with described second
As first 102 the 5th end connects；
The first end of first camera 101 is connect with the first end of described control unit 105, the second camera
102 first end is connect with the second end of described control unit 105, and described control unit 105 is used in first camera
The synchronous signal transmission between the second camera；
Described control unit 105 is for detecting in first camera and the second camera whether only one is taken the photograph
As head work, if so, the circuit between the first end and second end of control described control unit disconnects.
In the embodiment of the present invention, above-mentioned serial time clock line and serial data line are generally collectively referred to as I2C (Inter-
Integrated Circuit) bus for connecting microcontroller and its peripheral equipment is that microelectronics communication control field is extensive
A kind of bus standard used.It is a kind of special shape of synchronous communication, has interface line few, control mode is simple, device
The advantages that packing forms are small, and traffic rate is higher, through serial data line and serial time clock line between being connected to the device of bus
Transmit information.
It should be noted that serial time clock line and serial data line in the present embodiment, i.e. I2C bus, can also use
In circuit to such as Fig. 2 to Fig. 6.
The embodiment of the present invention also provides a kind of mobile terminal, which includes any one implementation in the embodiment of the present invention
The circuit of the control dual camera of mode.
5th embodiment
It is a kind of flow chart of method for controlling dual camera provided in an embodiment of the present invention refering to Fig. 8, Fig. 8, is applied to
Mobile terminal, as shown in Figure 8, comprising the following steps:
801, when the first camera of the mobile terminal works and second camera does not work, described first is imaged
The circuit of synchronous signal transmission disconnects between head and the second camera.
In the embodiment of the present invention, above-mentioned camera can be front camera or rear camera, above-mentioned control first
The circuit of synchronous signal transmission disconnects between camera and the second camera, can be a switch, is also possible to multiple
Switch, or be also possible to realize a circuit of switching function.
802 and when the mobile terminal second camera work and the first camera do not work when, by described first
The circuit of synchronous signal transmission disconnects between camera and the second camera.
In the embodiment of the present invention, the electricity of synchronous signal transmission between above-mentioned the first camera of control and the second camera
Road disconnects, and can be a switch, is also possible to multiple switch, or is also possible to realize a circuit of switching function.
In addition, it is necessary to which explanation, this method can be applied to any embodiment provided in the embodiment of the present invention
Mobile terminal, specific implementation process can be to be carried out using the circuit of the control dual camera provided in the embodiment of the present invention
It realizes, does not repeat herein.
The embodiment of the present invention, when the first camera of the mobile terminal works and second camera does not work, by institute
The circuit for stating synchronous signal transmission between the first camera and the second camera disconnects；And when the of the mobile terminal
It is when two cameras work and the first camera does not work, transmission between first camera and the second camera is synchronous
The circuit of signal disconnects.In this way when only one camera works, synchronization signal will not leak electricity idle camera, eliminate
Security risk.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit
It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program code
Medium.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (9)
1. it is a kind of control dual camera circuit characterized by comprising the first camera, second camera, the first power supply,
Second source and control unit, in which:
First power supply is first camera power supply, and the second source is second camera power supply；
The first end of the first end of first camera and described control unit connects, the first end of the second camera with
The second end of described control unit connects, and described control unit is used between first camera and the second camera
Synchronous signal transmission；
Described control unit for detect in first camera and the second camera whether only one camera work
Make, if so, the circuit between the first end and second end of control described control unit disconnects；
First camera and the second camera are two rear cameras of mobile terminal, or are respectively mobile whole
The front camera and rear camera at end.
2. circuit according to claim 1, which is characterized in that described control unit, comprising:
Third power supply, the 4th power supply, diode and the first NMOS tube；
Wherein, the first end of first camera is connect with the source electrode of first NMOS tube, and the of the second camera
One end is connect with the drain electrode of first NMOS tube, and the third power supply is connect with the second end of first camera, described
4th power supply is connect with the second end of the second camera, and the third power supply is connect with the grid of first NMOS tube,
And it is connect with the anode of the diode, the cathode of the diode is connect with the 4th power supply；
First NMOS tube is in first power supply and the third power supply power supply, the second source and the 4th power supply
When not powering, source electrode and drain electrode are disconnected；
And first NMOS tube is in the second source and the 4th power supply power supply, first power supply and the third
When power supply is not powered, source electrode and drain electrode are disconnected.
3. circuit according to claim 2, which is characterized in that described control unit further includes first resistor, the third
Power supply is connect with the first end of the first resistor, and the second end of the first resistor is connect with the anode of the diode, and
And it is connect with the grid of first NMOS tube.
4. circuit according to claim 1, which is characterized in that described control unit, comprising:
First PMOS tube, the second PMOS tube, the second NMOS tube and the 5th power supply；
Wherein, the first end of first camera is connect with the source electrode of second PMOS tube, and the of the second camera
One end is connect with the drain electrode of second PMOS tube, the drain electrode of the grid of second PMOS tube and first PMOS tube and institute
The drain electrode connection of the second NMOS tube is stated, the source electrode of first PMOS tube is connect with the 5th power supply, second NMOS tube
Source electrode ground connection, the second source connect with the grid of the grid of first PMOS tube and second NMOS tube；
Second PMOS tube is in first power supply and the 5th power supply power supply, when the second source is not powered, source electrode
It is disconnected with drain electrode；
And second PMOS tube is in the second source and the 5th power supply power supply, when first power supply is not powered,
Source electrode and drain electrode disconnect.
5. circuit according to claim 4, which is characterized in that described control unit further includes second resistance, and the described 5th
Power supply is connect by the second resistance with the source electrode of first PMOS tube.
6. circuit according to claim 5, which is characterized in that described control unit further includes 3rd resistor, and described second
The source electrode of NMOS tube is grounded by the 3rd resistor.
7. circuit according to any one of claim 1 to 6, which is characterized in that the circuit further include:
First serial time clock line, the first serial data line, the second serial time clock line and the second serial data line；
Wherein, first power supply is connect with the third end of first camera, and first power supply is gone here and there by described first
Row clock line is connect with the 4th end of first camera, and passes through first serial data line and first camera shooting
The 5th end connection of head；
The second source is connect with the third end of the second camera, passes through second serial time clock line and described second
4th end of camera connects, and is connect by second serial data line with the 5th end of the second camera.
8. a kind of mobile terminal, which is characterized in that including the circuit as described in any one of claims 1 to 7.
9. a kind of method for controlling dual camera, is applied to mobile terminal according to any one of claims 8 characterized by comprising
When the mobile terminal the first camera work and second camera do not work when, by first camera with it is described
The circuit of synchronous signal transmission disconnects between second camera；
And when the mobile terminal second camera work and the first camera do not work when, will first camera and
The circuit of synchronous signal transmission disconnects between the second camera.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710020866.2A CN106612377B (en) | 2017-01-12 | 2017-01-12 | A kind of circuit, mobile terminal and method controlling dual camera |
| PCT/CN2017/118271 WO2018130065A1 (en) | 2017-01-12 | 2017-12-25 | Circuit for controlling dual cameras, mobile terminal, and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710020866.2A CN106612377B (en) | 2017-01-12 | 2017-01-12 | A kind of circuit, mobile terminal and method controlling dual camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106612377A CN106612377A (en) | 2017-05-03 |
| CN106612377B true CN106612377B (en) | 2019-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710020866.2A Active CN106612377B (en) | 2017-01-12 | 2017-01-12 | A kind of circuit, mobile terminal and method controlling dual camera |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106612377B (en) |
| WO (1) | WO2018130065A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612377B (en) * | 2017-01-12 | 2019-09-27 | 维沃移动通信有限公司 | A kind of circuit, mobile terminal and method controlling dual camera |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480592A (en) * | 2010-11-30 | 2012-05-30 | 比亚迪股份有限公司 | Double-camera control circuit and double-camera mobile terminal |
| CN103024272A (en) * | 2012-12-14 | 2013-04-03 | 广东欧珀移动通信有限公司 | Double camera control device, method and system of mobile terminal and mobile terminal |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7116357B1 (en) * | 1995-03-20 | 2006-10-03 | Canon Kabushiki Kaisha | Camera monitoring system |
| WO2005024642A2 (en) * | 2003-09-09 | 2005-03-17 | Thomson Licensing S.A. | Active pull up apparatus for a data bus |
| KR101607918B1 (en) * | 2010-01-22 | 2016-04-12 | 삼성전자주식회사 | Circuit apparatus for preventing radiation emission in dual camera portable terminal |
| CN202068501U (en) * | 2011-04-28 | 2011-12-07 | 比亚迪股份有限公司 | High-definition multimedia interface circuit and portable electronic device applying same |
| CN103199693A (en) * | 2013-02-18 | 2013-07-10 | 广东欧珀移动通信有限公司 | Power supply circuit for two cameras of mobile terminal |
| CN106612377B (en) * | 2017-01-12 | 2019-09-27 | 维沃移动通信有限公司 | A kind of circuit, mobile terminal and method controlling dual camera |
-
2017
- 2017-01-12 CN CN201710020866.2A patent/CN106612377B/en active Active
- 2017-12-25 WO PCT/CN2017/118271 patent/WO2018130065A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480592A (en) * | 2010-11-30 | 2012-05-30 | 比亚迪股份有限公司 | Double-camera control circuit and double-camera mobile terminal |
| CN103024272A (en) * | 2012-12-14 | 2013-04-03 | 广东欧珀移动通信有限公司 | Double camera control device, method and system of mobile terminal and mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018130065A1 (en) | 2018-07-19 |
| CN106612377A (en) | 2017-05-03 |
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