CN108540697A - It is double before and after one kind to take the photograph circuit structure and its mobile terminal - Google Patents

It is double before and after one kind to take the photograph circuit structure and its mobile terminal Download PDF

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Publication number
CN108540697A
CN108540697A CN201810395780.2A CN201810395780A CN108540697A CN 108540697 A CN108540697 A CN 108540697A CN 201810395780 A CN201810395780 A CN 201810395780A CN 108540697 A CN108540697 A CN 108540697A
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CN
China
Prior art keywords
mipi
camera end
mobile terminal
camera
works
Prior art date
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Withdrawn
Application number
CN201810395780.2A
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Chinese (zh)
Inventor
王璟
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Nubia Technology Co Ltd
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Nubia Technology Co Ltd
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Application filed by Nubia Technology Co Ltd filed Critical Nubia Technology Co Ltd
Priority to CN201810395780.2A priority Critical patent/CN108540697A/en
Publication of CN108540697A publication Critical patent/CN108540697A/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/2257Mechanical and electrical details of cameras or camera modules for embedding in other devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0264Details of the structure or mounting of specific components for a camera module assembly
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/222Studio circuitry; Studio devices; Studio equipment ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/225Television cameras ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
    • H04N5/232Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor

Abstract

The present invention disclose it is double before and after one kind taking the photograph circuit structure and its mobile terminal, belong to terminal camera field of circuit technology.Taking the photograph circuit structure for this front and back pair includes:Front camera end, the front for being set to mobile terminal, to carry out preposition camera shooting or take pictures;Rear camera end, the back side for being set to mobile terminal, to carry out postposition camera shooting or take pictures;The ends CPU carry out data transmission communicating for passing through MIPI interfaces with front camera end or rear camera end;MIPI control terminals are used for when front camera end works, and switching preamplifier images the MIPI interfaces at the ends head end connection CPU, and when rear camera end works, the MIPI interfaces at the ends switching rear camera connection CPU.Technical scheme of the present invention, to realize sharing for MIPI cablings, greatlys save cabling area, reduces design and cabling cost, promote the utilization rate of PCB space by designing a MIPI control terminal.

Description

It is double before and after one kind to take the photograph circuit structure and its mobile terminal
Technical field
Circuit structure and its movement are taken the photograph the present invention relates to double before and after terminal camera field of circuit technology more particularly to one kind Terminal.
Background technology
Mobile terminal on the market at present is generally the design using front and back dual camera, to meet taking pictures for user Demand, and with the progress for science and technology of taking pictures, also gradually develop it is double after take the photograph or double proactive designs.In existing camera circuit In structure, by MIPI interfaces, (Mobile Industry Processor Interface, mobile Industry Processor connect CPU Mouthful) carry out data transmission with camera, MIPI interfaces are transmitted using differential signal, and a general camera needs 4 logarithms To communicate with CPU according to differential signal, as shown in figure 3, after mobile terminal is respectively provided with preceding camera and rear camera, then need Eight pairs are wanted to communicate with CPU to data differential signals, so, as camera is more and more, then MIPI differential signals To also more and more, and MIPI cablings need to wrap the key designs protection such as ground, isolation, equidistant, isometric, then need to occupy more Cabling space and PCB surface product, so, be easy to bring many problems to the spatial design of mobile terminal.
Invention content
It is a primary object of the present invention to propose double before and after one kind to take the photograph circuit structure and its mobile terminal, it is intended to pass through design One MIPI control terminal greatlys save cabling area, reduces design and cabling cost, promoted to realize sharing for MIPI cablings The utilization rate of PCB space.
To achieve the above object, double before and after one kind provided by the invention to take the photograph circuit structure, described front and back pair is taken the photograph circuit structure Including:Front camera end, the front for being set to mobile terminal, to carry out preposition camera shooting or take pictures;Rear camera end, The back side for being set to mobile terminal, to carry out postposition camera shooting or take pictures;The ends CPU, for by MIPI interfaces with it is described before It sets camera shooting head end or the rear camera end carries out data transmission communicating;MIPI control terminals, in the front camera When holding work, switch the MIPI interfaces that the front camera end connects the ends CPU, or sets camera shooting head end work in the rear When, switch the MIPI interfaces that the rear camera connects the ends CPU.
Optionally, the MIPI interfaces at the ends CPU are connected by one end of four pairs of differential data lines and the MIPI control terminals It connects, the other end of the MIPI control terminals is separately connected the front camera end and the rear camera end.
Optionally, the MIPI control terminals include:First detection module, for detect the front camera end whether work Make, and the first switch-over control signal is sent out when the front camera end works;Second detection module, for detect it is described after The second switch-over control signal is sent out when setting whether camera shooting head end works, and setting camera shooting head end work in the rear;Handover module is used In under first switch-over control signal, switching the MIPI interfaces that the front camera end connects the ends CPU, or in institute It states under the second switch-over control signal, switches the MIPI interfaces that the rear camera connects the ends CPU.
Optionally, the first detection module by be powered detect or detect the open instructions at the front camera end come Judge whether the front camera end works.
Optionally, second detection module by be powered detect or detect the open instructions at the rear camera end come Judge whether the rear camera end works.
In addition, to achieve the above object, the present invention also proposes that a kind of mobile terminal, the mobile terminal include front and back pair and take the photograph Circuit structure, taking the photograph circuit structure for described front and back pair includes:Front camera end, the front for being set to the mobile terminal, To carry out preposition camera shooting or take pictures;Rear camera end, the back side for being set to the detection mobile terminal, to carry out postposition It images or takes pictures;The ends CPU, for carrying out data by MIPI interfaces and the front camera end or the rear camera end Transmission communication;MIPI control terminals, for when the front camera end works, switching described in the front camera end connection The MIPI interfaces at the ends CPU, or in the rear set camera shooting head end work when, switch the rear camera and connect the ends CPU MIPI interfaces.
Optionally, the MIPI interfaces at the ends CPU are connected by one end of four pairs of differential data lines and the MIPI control terminals It connects, the other end of the MIPI control terminals is separately connected the front camera end and the rear camera end.
Optionally, the MIPI control terminals include:First detection module, for detect the front camera end whether work Make, and the first switch-over control signal is sent out when the front camera end works;Second detection module, for detect it is described after The second switch-over control signal is sent out when setting whether camera shooting head end works, and setting camera shooting head end work in the rear;Handover module is used In under first switch-over control signal, switching the MIPI interfaces that the front camera end connects the ends CPU, or in institute It states under the second switch-over control signal, switches the MIPI interfaces that the rear camera connects the ends CPU.
Optionally, the first detection module by be powered detect or detect the open instructions at the front camera end come Judge whether the front camera end works.
Optionally, second detection module by be powered detect or detect the open instructions at the rear camera end come Judge whether the rear camera end works.
Front and back pair proposed by the present invention is taken the photograph circuit structure and its mobile terminal, and it includes preposition take the photograph that front and back pair, which is taken the photograph circuit structure, As head end, rear camera end, the ends CPU and MIPI control terminals, with the data transmission link between the ends CPU and camera shooting head end One MIPI control terminal of upper increase, so, when work, when detecting that front camera end is opened, MIPI controls The MIPI interfaces connection front camera end at the ends end control CPU processed carries out data transmission;And works as and detect that rear camera end is beaten When opening, the MIPI interfaces connection rear camera end at the ends MIPI control terminals control CPU carries out data transmission.As it can be seen that this Front and back pair of invention takes the photograph circuit structure and its mobile terminal, can be by designing a MIPI control terminal, to realize MIPI cablings Share, greatly save cabling area, reduce design and cabling cost, promote the utilization rate of PCB space.
Description of the drawings
The hardware architecture diagram of Fig. 1 mobile terminals of each embodiment to realize the present invention.
Fig. 2 is the communications network system Organization Chart that mobile terminal as shown in Figure 1 is based on.
Fig. 3 is double structural schematic diagrams for taking the photograph circuit structure before and after the prior art.
Fig. 4 is front and back double structural schematic diagrams for taking the photograph circuit structure that the embodiment of the present invention one provides.
Fig. 5 is the structural schematic diagram of front and back double MIPI control terminals for taking the photograph circuit structure shown in Fig. 4.
Fig. 6 is the structural schematic diagram of mobile terminal provided by Embodiment 2 of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In subsequent description, using for indicating that the suffix of such as " module ", " component " or " unit " of element is only The explanation for being conducive to the present invention, itself does not have a specific meaning.Therefore, " module ", " component " or " unit " can mix Ground uses.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as mobile phone, tablet electricity Brain, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable matchmaker Body player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer etc. are mobile The fixed terminals such as terminal, and number TV, desktop computer.
It will be illustrated by taking mobile terminal as an example in subsequent descriptions, it will be appreciated by those skilled in the art that in addition to special Except element for moving purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, a kind of hardware architecture diagram of its mobile terminal of each embodiment to realize the present invention, the shifting Moving terminal 100 may include:RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit 103, A/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, the components such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 1 Mobile terminal structure does not constitute the restriction to mobile terminal, and mobile terminal may include components more more or fewer than diagram, Either combine certain components or different components arrangement.
The all parts of mobile terminal are specifically introduced with reference to Fig. 1:
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station Downlink information receive after, to processor 110 handle;In addition, the data of uplink are sent to base station.In general, radio frequency unit 101 Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating Frequency unit 101 can also be communicated with network and other equipment by radio communication.Above-mentioned wireless communication can use any communication Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency division duplex long term evolution) and TDD-LTE (Time Division Duplexing-Long Term Evolution, time division duplex long term evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102 Sub- mail, browsing webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 1 shows Go out WiFi module 102, but it is understood that, and it is not belonging to must be configured into for mobile terminal, it completely can be according to need It to be omitted in the range for the essence for not changing invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100 When under the isotypes such as formula, speech recognition mode, broadcast reception mode, it is that radio frequency unit 101 or WiFi module 102 are received or The audio data stored in memory 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103 The relevant audio output of specific function executed with mobile terminal 100 can also be provided (for example, call signal receives sound, disappears Breath receives sound etc.).Audio output unit 103 may include loud speaker, buzzer etc..
A/V input units 104 are for receiving audio or video signal.A/V input units 104 may include graphics processor (Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode Or the image data of the static images or video obtained by image capture apparatus (such as camera) in image capture mode carries out Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042 Quiet down sound (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case of telephone calling model. Microphone 1042 can implement various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition) The noise generated during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear Display panel 1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general For three axis) size of acceleration, size and the direction of gravity are can detect that when static, can be used to identify the application of mobile phone posture (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.; The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, The other sensors such as hygrometer, thermometer, infrared sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode may be used Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generate the use with mobile terminal Family is arranged and the related key signals input of function control.Specifically, user input unit 107 may include touch panel 1071 with And other input equipments 1072.Touch panel 1071, also referred to as touch screen collect user on it or neighbouring touch operation (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 1071 or in touch panel 1071 Neighbouring operation), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touch detection Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band The signal come, transmits a signal to touch controller;Touch controller receives touch information from touch detecting apparatus, and by it It is converted into contact coordinate, then gives processor 110, and order that processor 110 is sent can be received and executed.In addition, can To realize touch panel 1071 using multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel 1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating lever etc. It is one or more, do not limit herein specifically.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel 1061 be to realize the function that outputs and inputs of mobile terminal as two independent components, but in certain embodiments, can The function that outputs and inputs of mobile terminal is realized so that touch panel 1071 and display panel 1061 is integrated, is not done herein specifically It limits.
Interface unit 108 be used as at least one external device (ED) connect with mobile terminal 100 can by interface.For example, External device (ED) may include wired or wireless headset port, external power supply (or battery charger) port, wired or nothing Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end Mouth, video i/o port, headset port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with For the transmission data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storing software program and various data.Memory 109 can include mainly storing program area And storage data field, wherein storing program area can storage program area, application program (such as the sound needed at least one function Sound playing function, image player function etc.) etc.;Storage data field can store according to mobile phone use created data (such as Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, can also include non-easy The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection A part by running or execute the software program and/or module that are stored in memory 109, and calls and is stored in storage Data in device 109 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place Reason device 110 may include one or more processing units;Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply 111 Can be logically contiguous by power-supply management system and processor 110, to realize management charging by power-supply management system, put The functions such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
Embodiment to facilitate the understanding of the present invention, below to the communications network system that is based on of mobile terminal of the present invention into Row description.
Referring to Fig. 2, Fig. 2 is a kind of communications network system Organization Chart provided in an embodiment of the present invention, the communication network system System is the LTE system of universal mobile communications technology, which includes communicating UE (User Equipment, the use of connection successively Family equipment) (the lands Evolved UMTS Terrestrial Radio Access Network, evolved UMTS 201, E-UTRAN Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation 204。
Specifically, UE201 can be above-mentioned terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning Journey (backhaul) (such as X2 interface) is connect with other eNodeB2022, and eNodeB2021 is connected to EPC203, ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 may include MME (Mobility Management Entity, mobility management entity) 2031, HSS (Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way, Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and The control node of signaling, provides carrying and connection management between EPC203.HSS2032 is all to manage for providing some registers Such as the function of home location register (not shown) etc, and some are preserved in relation to use such as service features, data rates The dedicated information in family.All customer data can be sent by SGW2034, and PGW2035 can provide the IP of UE 201 Address is distributed and other functions, and PCRF2036 is strategy and the charging control strategic decision-making of business data flow and IP bearing resources Point, it selects and provides available strategy and charging control decision with charge execution function unit (not shown) for strategy.
IP operation 204 may include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia System) or other IP operations etc..
Although above-mentioned be described by taking LTE system as an example, those skilled in the art it is to be understood that the present invention not only Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with And the following new network system etc., it does not limit herein.
Based on above-mentioned mobile terminal hardware configuration and communications network system, each embodiment of the method for the present invention is proposed.
Embodiment one
As shown in figure 3, the embodiment of the present invention one propose it is double before and after one kind taking the photograph circuit structure 300, this is front and back double to take the photograph circuit knot Structure 300 includes front camera end 310, rear camera end 320, the ends CPU 330 and MIPI control terminals 340.
Wherein, which is mainly used for being set to the front of mobile terminal, to carry out preposition camera shooting or bat According to.The rear camera end 320 is mainly used for being set to the back side of mobile terminal, to carry out postposition camera shooting or take pictures.The ends CPU 330 are mainly used for carrying out data transmission leading to by MIPI interfaces and the front camera end 310 or the rear camera end 320 Letter.The MIPI control terminals 340 are mainly used for when the front camera end 310 works, and switch the front camera end 310 connection The MIPI interfaces at the ends CPU 330, or when the rear camera end 320 works, switch the rear camera 320 and connect the CPU The MIPI interfaces at end 310.
In the present embodiment, as shown in figure 4, the MIPI interfaces at the ends CPU 330 pass through four pairs of differential data lines and the MIPI One end of control terminal 340 connects, and the other end of the MIPI control terminals 340 is separately connected the front camera end 310 and postposition is taken the photograph As head end 320.Specifically, as shown in figure 4, four pairs of differential data lines are followed successively by MIPI_CSI0_LAN0_P and MIPI_CSI0_ LAN0_M, MIPI_CSI0_LAN1_P and MIPI_CSI0_LAN1_M, MIPI_CSI0_LAN2_P and MIPI_CSI0_LAN2_M, MIPI_CSI0_LAN3_P and MIPI_CSI0_LAN3_M, it is double before and after sheet to take the photograph by the switching control of the MIPI control terminals 340 When circuit structure 300 works, this four pairs of differential data lines preposition can both be taken the photograph when the front camera end 310 works as this As the MIPI cablings of data transfer communications between head end 310 and the ends CPU 330, can also work at the rear camera end 320 When, the MIPI cablings as data transfer communications between the rear camera end 320 and the ends CPU 330.
As shown in figure 5, the MIPI control terminals 340 specifically include first detection module 341, the second detection module 342 and Handover module 343, wherein whether the first detection module 341 works mainly for detection of the front camera end 310, and The front camera end 310 sends out the first switch-over control signal when working.Second detection module 342 is mainly for detection of the postposition Whether camera shooting head end 320 works, and sends out the second switch-over control signal when the rear camera end 320 works.Handover module 343 are mainly used under first switch-over control signal, and the MIPI for switching the front camera end 310 connection ends CPU 330 connects Mouthful, or under second switch-over control signal, switch the MIPI interfaces that the rear camera 320 connects the ends CPU 330.Specifically Ground, first detection module 341 detect or detect the open instructions at the front camera end 310 by being powered and preposition taken the photograph to judge this As whether head end 310 works, i.e., first detection module 341 is by detecting whether the operating circuit at the front camera end 310 leads to Electricity works to judge whether the front camera end 310 works, or sent out to the front camera end 310 by detecting system Open instructions judges whether the front camera end 310 works.Likewise, the second detection module 342 is detected by being powered Or detect the open instructions at the rear camera end 320 to judge whether the rear camera end 320 works, i.e., second detects mould Block 342 judges that the rear camera end 320 is by detecting the operating circuit at the rear camera end 320 and whether being powered on No work, or the rear camera end is judged by open instructions that detecting system is sent out to the rear camera end 320 Whether 320 work.
When work, if as shown in figure 4, system detectio opens work, the MIPI control terminals to front camera end 310 340 carry out data transmission at MIPI cablings connection front camera end 310 with the ends CPU 330.If system detectio is to rear camera Work is opened at end 320, then MIPI cablings are connected rear camera end 320 and the ends CPU 330 into line number by the MIPI control terminals 340 According to transmission;So, it can realize that front camera end 310 and the MIPI data transmission links at rear camera end 320 are total With, cabling and PCB surface product are saved significantly, it is cost-effective, promote PCB space utilization rate.
To those skilled in the art, the technical program can also be applied and double is taken the photograph and postposition is double takes the photograph including preposition Four take the photograph in circuit structure, and since preposition double two cameras taken the photograph work at the same time, double two cameras taken the photograph of postposition are also It works at the same time, the same time, preposition double two cameras taken the photograph can only occur and work at the same time or occur double two taken the photograph of postposition Camera works at the same time, i.e., only needs that eight pairs of difference numbers are arranged between the MIPI interfaces at the ends CPU 330 and the MIPI control terminals 340 According to line, preposition double MIPI data transmission chains taken the photograph and postposition pair is taken the photograph can be realized by the switching control of the MIPI control terminals 340 Road shares, and saves cabling and PCB surface product significantly, cost-effective, promotes PCB space utilization rate.
Embodiment two
As shown in fig. 6, the embodiment of the present invention two proposes a kind of mobile terminal 400, which includes such as Fig. 4 institutes Front and back pair shown takes the photograph circuit structure 300, which includes front camera end 310, rear camera end 320, the ends CPU 330 and MIPI control terminals 340.
Wherein, which is mainly used for being set to the front of mobile terminal 400, to carry out preposition camera shooting Or it takes pictures.The rear camera end 320 is mainly used for being set to the back side of mobile terminal 400, to carry out postposition camera shooting or take pictures. The ends CPU 330 are mainly used for carrying out data by MIPI interfaces and the front camera end 310 or the rear camera end 320 Transmission communication.The MIPI control terminals 340 are mainly used for, when the front camera end 310 works, switching the front camera end 310 connect the MIPI interfaces at the ends CPU 330, or when the rear camera end 320 works, and switch the rear camera 320 company Connect the MIPI interfaces at the ends CPU 310.
In the present embodiment, as shown in figure 4, the MIPI interfaces at the ends CPU 330 pass through four pairs of differential data lines and the MIPI One end of control terminal 340 connects, and the other end of the MIPI control terminals 340 is separately connected the front camera end 310 and postposition is taken the photograph As head end 320.Specifically, as shown in figure 4, four pairs of differential data lines are followed successively by MIPI_CSI0_LAN0_P and MIPI_CSI0_ LAN0_M, MIPI_CSI0_LAN1_P and MIPI_CSI0_LAN1_M, MIPI_CSI0_LAN2_P and MIPI_CSI0_LAN2_M, MIPI_CSI0_LAN3_P and MIPI_CSI0_LAN3_M, it is double before and after sheet to take the photograph by the switching control of the MIPI control terminals 340 When circuit structure 300 works, this four pairs of differential data lines preposition can both be taken the photograph when the front camera end 310 works as this As the MIPI cablings of data transfer communications between head end 310 and the ends CPU 330, can also work at the rear camera end 320 When, the MIPI cablings as data transfer communications between the rear camera end 320 and the ends CPU 330.
As shown in figure 5, the MIPI control terminals 340 specifically include first detection module 341, the second detection module 342 and Handover module 343, wherein whether the first detection module 341 works mainly for detection of the front camera end 310, and The front camera end 310 sends out the first switch-over control signal when working.Second detection module 342 is mainly for detection of the postposition Whether camera shooting head end 320 works, and sends out the second switch-over control signal when the rear camera end 320 works.Handover module 343 are mainly used under first switch-over control signal, and the MIPI for switching the front camera end 310 connection ends CPU 330 connects Mouthful, or under second switch-over control signal, switch the MIPI interfaces that the rear camera 320 connects the ends CPU 330.Specifically Ground, first detection module 341 detect or detect the open instructions at the front camera end 310 by being powered and preposition taken the photograph to judge this As whether head end 310 works, i.e., first detection module 341 is by detecting whether the operating circuit at the front camera end 310 leads to Electricity work judges whether the front camera end 310 works, or by detecting the system of mobile terminal 400 to the preposition camera shooting The open instructions that head end 310 is sent out judges whether the front camera end 310 works.Likewise, the second detection module 342 Judge whether the rear camera end 320 works by being powered to detecting or detect the open instructions at the rear camera end 320, That is the second detection module 342 judges the postposition by detecting the operating circuit at the rear camera end 320 and whether being powered on Whether camera shooting head end 320 works, or the opening that the system by detecting mobile terminal 400 is sent out to the rear camera end 320 Instruction judges whether the rear camera end 320 works.
When work, if as shown in figure 4, the system detectio of mobile terminal 400 to front camera end 310 open work, The MIPI control terminals 340 carry out data transmission at MIPI cablings connection front camera end 310 with the ends CPU 330;If mobile terminal 400 system detectio opens work to rear camera end 320, then the MIPI control terminals 340 take the photograph MIPI cablings connection postposition As the ends head end 320 and CPU 330 carry out data transmission.So, front camera end 310 and rear camera can be realized The MIPI data transmission links at end 320 share, and save cabling and PCB surface product significantly, cost-effective, promote PCB space utilization rate.
To those skilled in the art, the technical program can also be applied and double is taken the photograph and postposition is double takes the photograph including preposition Four take the photograph in circuit structure, and since preposition double two cameras taken the photograph work at the same time, double two cameras taken the photograph of postposition are also It works at the same time, the same time, preposition double two cameras taken the photograph can only occur and work at the same time or occur double two taken the photograph of postposition Camera works at the same time, i.e., only needs that eight pairs of difference numbers are arranged between the MIPI interfaces at the ends CPU 330 and the MIPI control terminals 340 According to line, preposition double MIPI data transmission chains taken the photograph and postposition pair is taken the photograph can be realized by the switching control of the MIPI control terminals 340 Road shares, and saves cabling and PCB surface product significantly, cost-effective, promotes PCB space utilization rate.
Front and back pair of it is proposed of the embodiment of the present invention takes the photograph circuit structure and its mobile terminal, takes the photograph circuit structure for front and back pair and includes Front camera end, rear camera end, the ends CPU and MIPI control terminals are passed with the data between the ends CPU and camera shooting head end Increase a MIPI control terminal on transmission link, so, when work, when detecting that front camera end is opened, The MIPI interfaces connection front camera end at the ends MIPI control terminals control CPU carries out data transmission;And works as and detect that postposition images When head end is opened, the MIPI interfaces connection rear camera end at the ends MIPI control terminals control CPU carries out data transmission.It can See, of the invention front and back pair is taken the photograph circuit structure and its mobile terminal, can be by designing a MIPI control terminal, to realize MIPI Sharing for cabling, greatlys save cabling area, reduces design and cabling cost, promotes the utilization rate of PCB space.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that process, method, article or device including a series of elements include not only those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this There is also other identical elements in the process of element, method, article or device.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, computer, clothes Be engaged in device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills Art field, is included within the scope of the present invention.

Claims (10)

1. double before and after one kind taking the photograph circuit structure, which is characterized in that taking the photograph circuit structure for described front and back pair includes:
Front camera end, the front for being set to mobile terminal, to carry out preposition camera shooting or take pictures;
Rear camera end, the back side for being set to mobile terminal, to carry out postposition camera shooting or take pictures;
The ends CPU carry out data transmission leading to for passing through MIPI interfaces with the front camera end or the rear camera end Letter;
MIPI control terminals connect the ends CPU for when the front camera end works, switching the front camera end MIPI interfaces, or when setting camera shooting head end work in the rear, switch the rear camera and connect the MIPI at the ends CPU and connect Mouthful.
2. front and back pair as described in claim 1 is taken the photograph circuit structure, which is characterized in that the MIPI interfaces at the ends CPU pass through four Differential data line is connect with one end of the MIPI control terminals, the other ends of the MIPI control terminals is separately connected described preposition Image head end and the rear camera end.
3. circuit structure is taken the photograph as described in claim 1 front and back double, which is characterized in that the MIPI control terminals include:
First detection module, for detecting whether the front camera end works, and when the front camera end works Send out the first switch-over control signal;
Second detection module, for detecting whether the rear camera end works, and in the rear set camera shooting head end work when Send out the second switch-over control signal;
Handover module, under first switch-over control signal, switching the front camera end and connecting the ends CPU MIPI interfaces, or under second switch-over control signal, switch the rear camera and connect the MIPI at the ends CPU and connect Mouthful.
4. front and back pair as claimed in claim 3 is taken the photograph circuit structure, which is characterized in that the first detection module, which passes through to be powered, to be examined The open instructions at the front camera end is surveyed or detected to judge whether the front camera end works.
5. front and back pair as claimed in claim 3 is taken the photograph circuit structure, which is characterized in that second detection module, which passes through to be powered, to be examined The open instructions at the rear camera end is surveyed or detected to judge whether the rear camera end works.
6. a kind of mobile terminal, which is characterized in that the mobile terminal includes front and back pair and takes the photograph circuit structure, and described front and back pair is taken the photograph electricity Line structure includes:
Front camera end, the front for being set to the mobile terminal, to carry out preposition camera shooting or take pictures;
Rear camera end, the back side for being set to the detection mobile terminal, to carry out postposition camera shooting or take pictures;
The ends CPU carry out data transmission leading to for passing through MIPI interfaces with the front camera end or the rear camera end Letter;
MIPI control terminals connect the ends CPU for when the front camera end works, switching the front camera end MIPI interfaces, or when setting camera shooting head end work in the rear, switch the rear camera and connect the MIPI at the ends CPU and connect Mouthful.
7. mobile terminal as claimed in claim 6, which is characterized in that the MIPI interfaces at the ends CPU pass through four pairs of difference numbers It is connect with one end of the MIPI control terminals according to line, the other end of the MIPI control terminals is separately connected the front camera end And the rear camera end.
8. mobile terminal as claimed in claim 6, which is characterized in that the MIPI control terminals include:
First detection module, for detecting whether the front camera end works, and when the front camera end works Send out the first switch-over control signal;
Second detection module, for detecting whether the rear camera end works, and in the rear set camera shooting head end work when Send out the second switch-over control signal;
Handover module, under first switch-over control signal, switching the front camera end and connecting the ends CPU MIPI interfaces, or under second switch-over control signal, switch the rear camera and connect the MIPI at the ends CPU and connect Mouthful.
9. mobile terminal as claimed in claim 8, which is characterized in that the first detection module is detected or detected by being powered The open instructions at the front camera end judges whether the front camera end works.
10. mobile terminal as claimed in claim 8, which is characterized in that second detection module is detected or examined by being powered The open instructions at the rear camera end is surveyed to judge whether the rear camera end works.
CN201810395780.2A 2018-04-27 2018-04-27 It is double before and after one kind to take the photograph circuit structure and its mobile terminal Withdrawn CN108540697A (en)

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CN201810395780.2A CN108540697A (en) 2018-04-27 2018-04-27 It is double before and after one kind to take the photograph circuit structure and its mobile terminal

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CN110300221A (en) * 2019-05-20 2019-10-01 努比亚技术有限公司 MIPI control circuit and system, circuit control and circuit system control method
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CN112751995A (en) * 2019-10-30 2021-05-04 维沃移动通信有限公司 Camera module and electronic equipment

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