CN105959589A - Mobile terminal and exposure method thereof - Google Patents

Mobile terminal and exposure method thereof Download PDF

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Publication number
CN105959589A
CN105959589A CN201610371059.0A CN201610371059A CN105959589A CN 105959589 A CN105959589 A CN 105959589A CN 201610371059 A CN201610371059 A CN 201610371059A CN 105959589 A CN105959589 A CN 105959589A
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CN
China
Prior art keywords
electronics
exposure
mobile terminal
black card
data
Prior art date
Application number
CN201610371059.0A
Other languages
Chinese (zh)
Inventor
谢书勋
Original Assignee
努比亚技术有限公司
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Application filed by 努比亚技术有限公司 filed Critical 努比亚技术有限公司
Priority to CN201610371059.0A priority Critical patent/CN105959589A/en
Publication of CN105959589A publication Critical patent/CN105959589A/en

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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
    • H04N5/235Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
    • 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
    • H04N5/235Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
    • H04N5/2353Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by influencing the exposure time, e.g. shutter
    • 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
    • H04N5/235Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor
    • H04N5/238Circuitry or methods for compensating for variation in the brightness of the object, e.g. based on electric image signals provided by an electronic image sensor by influencing the optical part of the camera, e.g. diaphragm, intensifier, fibre bundle
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/30Transforming light or analogous information into electric information
    • H04N5/335Transforming light or analogous information into electric information using solid-state image sensors [SSIS]
    • H04N5/351Control of the SSIS depending on the scene, e.g. brightness or motion in the scene
    • H04N5/353Control of the integration time

Abstract

The embodiment of the invention discloses a mobile terminal and an exposure method thereof. The mobile terminal comprises a CCD (charge coupled device) image sensing unit. A light incoming side of the CCD imaging sensing unit is provided with an electronic black card. The electronic black card is transparent in a power-off state, and is not transparent in a power-on state. The mobile terminal also comprises a control unit and a data reading unit. The control unit is used for controlling the CCD image sensing unit to carry out global exposure when the CCD image sensing unit carries out the collection of image data, and controlling the electronic black card to be electrically connected when the exposure time reaches a preset threshold value. The data reading unit is used for carrying out progressive scanning or interlaced scanning on data when the control unit controls the power-on of the electronic black card. According to the technical scheme of the invention, the mobile terminal can iron out the defects of a mechanical shutter in service life and turn-off delay.

Description

A kind of mobile terminal and exposure method thereof
Technical field
The present invention relates to shooting technology field, be specifically related to a kind of mobile terminal and exposure method thereof.
Background technology
Apply many CCD (Charge-coupled Device, electric charge coupling at digital camera and mobile phone at present Close element) in imageing sensor, have and very use ITCCD (Interline Transfer more Charge-coupled Device, interline transfer charge coupling element) imageing sensor.ITCCD has 2 kinds, A kind of is the ITCCD (Progressive Scan ITCCD) progressively scanned, and another is interleaved ITCCD(Interlace Scan ITCCD).Use on slr camera and general camera at present is substantially The ITCCD of progressive scan;It is mechanical shutter ability of must arranging in pairs or groups for this interleaved ITCCD Carry out correct exposure.The exposure process of interleaved ITCCD can be as shown in Fig. 1 a to Fig. 1 e.In order to Avoid, after ITCCD carries out overall situation exposure, striped occurs in the transfer process of data parity row, need use machine Tool shutter blocks light, it is to avoid occur that parity rows exposes the uneven situation causing horizontal stripe of taking pictures.In exposure After end, the electric charge of all odd-numbered lines in photosensitive area accumulation can first transfer to the vertical electric charge depositor of shading region (VCCD), on, the most every a line is transferred on horizontal charge depositor (HCCD), then Export after the electric charge of each pixel being amplified and carries out analog digital conversion again.When the electric charge of all odd-numbered lines has processed The most just the electric charge of all for photosensitive area even number lines is carried out same process, by whole for the electric charge of all of even number line Export after process, above during this, it is necessary to allow mechanical shutter remain off, block light, Make CCD be in the state of not light, thus ensure all row of whole CCD (odd-numbered line and even number line) all Obtain same amount of exposure, it is to avoid the situation that exposure is uneven occurs.Under normal circumstances, mechanical shutter due to Being frame for movement, there will be abrasion condition during opening and closing, due to this abrasion, machinery is fast Door has the restriction in service life.Generally on slr camera, mechanical shutter common service life is 15~200,000 Secondary.Additionally mechanical shutter is because being the closedown being controlled mechanical blade by electromagnetic valve, from the electromagnetic valve that powers on Adhesive blade completely closes and needs a period of time, so when processing machinery shutter close action, needing to calculate Lead operates, as in figure 2 it is shown, mechanical shutter from power on (T1 moment) to completely closing (T2 Moment) need a period of time, CCD after reaching default time of exposure (T0 to T2 is during this period of time), Mechanical shutter must completely close (before the T2 moment) before odd-numbered line starts reading out data, i.e. at odd number Row needs to ensure that CCD is in not by light state when reading data, otherwise cannot ensure the even number line of CCD Exposure time is consistent.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides a kind of mobile terminal and exposure side thereof Method, with solve exposure that the mobile terminal using CCD in prior art causes due to mechanical shutter uneven with And the problem that service life is short.
For reaching above-mentioned purpose, the technical scheme of the embodiment of the present invention is achieved in that
Embodiments providing a kind of mobile terminal, described mobile terminal includes that ccd image sensing is single Unit;The incident side of described ccd image sensing unit is provided with the black card of electronics;Described electronics is black is stuck in power down shape It is pellucidity under state, so that light enters described ccd image sensing unit through the black card of described electronics;Institute Stating black being stuck under power-up state of electronics is alternatively non-transparent state, enters described ccd image sensing unit to block Light;
Described mobile terminal also includes: control unit and data-reading unit;Wherein,
Described control unit, when described ccd image sensing unit gathers view data, controls to carry out entirely Office's exposure;And when exposure time reaches predetermined threshold value, control the black card of described electronics and power on;
Described data-reading unit, is used for when the described control unit control black card of described electronics powers on, line by line/ Interlacing scan exposure data.
In such scheme, described control unit, be additionally operable to when described data-reading unit line by line/interlacing scan expose After light data complete, control the black card power down of described electronics.
In such scheme, described data-reading unit, for controlling the black card of described electronics when described control unit When powering on, scan and shift the exposure data of odd-numbered line, the exposure data of the described odd-numbered line after transfer is entered Row amplifies and exports after analog digital conversion;Scan and shift the exposure data of even number line, by the described idol after transfer The exposure data of several rows is amplified after analog digital conversion exporting.
In such scheme, described control unit, for described data-reading unit by the exposure data of odd-numbered line After changing output with the exposure data of even number line, control the black card power down of described electronics.
In such scheme, described mobile terminal also includes acquiring unit, when being used for detecting image capture instruction, Obtain the state of the black card of described electronics;
Described control unit, is additionally operable to, when the state of the black card of described electronics is power-up state, control described electricity The black card power down of son, to carry out overall situation exposure.
In such scheme, described control unit, it is additionally operable to detect when shutter close instructs, controls described electricity The black card of son powers on;Or, when detecting that shutter opening instructs, control the black card power down of described electronics.
The embodiment of the present invention additionally provides a kind of exposure method, is applied in mobile terminal;Described mobile terminal Including ccd image sensing unit;The incident side of described ccd image sensing unit is provided with the black card of electronics; Black being stuck under power-down state of described electronics is pellucidity, so that light enters described through the black card of described electronics Ccd image sensing unit;Black being stuck under power-up state of described electronics is alternatively non-transparent state, to block entrance institute State the light of ccd image sensing unit;Described method includes:
When described ccd image sensing unit gathers view data, control to carry out overall situation exposure;
Detection exposure time;
When described exposure time reaches predetermined threshold value, control the black card of described electronics and power on, and line by line/interlacing Scan exposure data.
In such scheme, described method also includes: after line by line/interlacing scan exposure data completes, and controls described Electronics black card power down.
In such scheme, the black card of the described electronics of described control powers on, and line by line/interlacing scan exposure data, Including: control the black card of described electronics power on time, scan and shift the exposure data of odd-numbered line, by transfer after The exposure data of described odd-numbered line is amplified after analog digital conversion exporting;Scan and shift the exposure of even number line Data, are amplified the exposure data of the described even number line after transfer after analog digital conversion exporting.
In such scheme, after the exposure data of described odd-numbered line and the exposure data conversion output of even number line, institute Method of stating also includes: control the black card power down of described electronics.
The mobile terminal of embodiment of the present invention offer and exposure method thereof, described mobile terminal includes ccd image Sensing unit;The incident side of described ccd image sensing unit is provided with the black card of electronics;Described electronics is black to be stuck in It is pellucidity under power-down state, so that light enters described ccd image sensing list through the black card of described electronics Unit;Black being stuck under power-up state of described electronics is alternatively non-transparent state, to block entrance described ccd image sensing The light of unit;Described mobile terminal also includes: control unit and data-reading unit;Wherein, described control Unit processed, when described ccd image sensing unit gathers view data, controls to carry out overall situation exposure;With And when exposure time reaches predetermined threshold value, control the black card of described electronics and power on;Described data-reading unit, For when described control unit control the black card of described electronics power on time, line by line/interlacing scan exposure data.So, Use the technical scheme of the embodiment of the present invention, block entrance ccd image sensing list by powering on of the black card of electronics The light of unit, with the digital independent of the pixel after being exposed, owing to electronics black card power up is the fastest Speed switching duration is negligible, so the black card of the electronics of the embodiment of the present invention can overcome mechanical shutter to make By life-span shortcoming above and in terms of closedown delay, use and replace traditional mechanical shutter completely, relative to machine Tool shutter substantially prolongs service life.
Accompanying drawing explanation
Fig. 1 a to Fig. 1 e is the exposure process schematic diagram of ITCCD in prior art;
Fig. 2 is the control process schematic that in prior art, mechanical shutter carries out overall situation exposure;
Fig. 3 is the hardware architecture diagram of the mobile terminal realizing each embodiment of the present invention;
Fig. 4 is the wireless communication system schematic diagram of mobile terminal as shown in Figure 3;
Fig. 5 is the electrical structure block diagram of camera in Fig. 3;
Fig. 6 is a kind of composition structural representation of the mobile terminal of the embodiment of the present invention;
Fig. 7 is the control process schematic of the mobile terminal of the embodiment of the present invention;
Fig. 8 is the another kind of composition structural representation of the mobile terminal of the embodiment of the present invention;
Fig. 9 is a kind of schematic flow sheet of the exposure method of the embodiment of the present invention;
Figure 10 is the another kind of schematic flow sheet of the exposure method of the embodiment of the present invention;
Figure 11 is the test control device a kind of schematic diagram as hardware entities of the embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do furtherly referring to the drawings Bright.
Detailed description of the invention
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit The present invention.
The mobile terminal realizing each embodiment of the present invention is described referring now to accompanying drawing.In follow-up description, Use the suffix of such as " module ", " parts " or " unit " for representing element only for being conducive to this The explanation of invention, itself does not has specific meaning.Therefore, " module " and " parts " can be mixedly Use.
Mobile terminal can be implemented in a variety of manners.Such as, the terminal described in the present invention can include all As mobile phone, smart phone, notebook computer, digit broadcasting receiver, PDA (personal digital assistant), The mobile terminal of PAD (panel computer), PMP (portable media player), guider etc. and The such as fixed terminal of numeral TV, desk computer etc..Hereinafter it is assumed that terminal is mobile terminal.But, It will be appreciated by those skilled in the art that in addition to the element except being used in particular for mobile purpose, according to the present invention The structure of embodiment can also apply to the terminal of fixed type.
Fig. 3 is the hardware configuration signal realizing each one mobile terminal of embodiment of the present invention.
Mobile terminal 100 can include wireless communication unit 110, A/V (audio/video) input block 120, User input unit 130, ultrasonic unit 140, output unit 150, memorizer 160, interface unit 170, Controller 180 and power subsystem 190 etc..Fig. 3 shows the mobile terminal with various assembly, but It it should be understood that, it is not required that implement all assemblies illustrated.Can alternatively implement more or less of group Part.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assembly, and it allows mobile terminal 100 with wireless Radio communication between communicator or network.Such as, wireless communication unit can include broadcast reception mould At least one in block 111 and mobile communication module 112.
Broadcast reception module 111 via broadcast channel from external broadcasting management server receive broadcast singal and/or Broadcast related information.Broadcast channel can include satellite channel and/or terrestrial channel.Broadcast management server can Be generate and send broadcast singal and/or the server of broadcast related information or receive before generate wide Broadcast signal and/or broadcast related information and send it to the server of terminal.Broadcast singal can include TV broadcast singal, radio signals, data broadcasting signal etc..And, broadcast singal can enter one Step includes the broadcast singal combined with TV or radio signals.Broadcast related information can also be via shifting Dynamic communication network provides, and in this case, broadcast related information can be by mobile communication module 112 Receive.Broadcast singal can exist in a variety of manners, and such as, it can be with DMB (DMB) Electronic program guides (EPG), the electronic service guidebooks (ESG) etc. of digital video broadcast-handheld (DVB-H) Form and exist.Broadcast reception module 111 can receive signal by using various types of broadcasters Broadcast.Especially, broadcast reception module 111 can by use such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), DVB-hand-held (DVB-H), forward link media The numeral of the data broadcaster of (MediaFLO@), received terrestrial digital broadcasting integrated service (ISDB-T) etc. Broadcaster receives digital broadcasting.Broadcast reception module 111 may be constructed such that and is adapted to provide for broadcast singal Various broadcasters and above-mentioned digital broadcast apparatus.The broadcast singal received via broadcast reception module 111 And/or broadcast related information can be stored in memorizer 160 (or other type of storage medium).
Mobile communication module 112 send radio signals to base station (such as, access point, node B etc.), In exterior terminal and server at least one and/or receive from it radio signal.Such aerogram Number can include voice call signal, video calling signal or send according to text and/or Multimedia Message And/or the various types of data received.
A/V input block 120 is used for receiving audio or video signal.A/V input block 120 can include Camera 121 and mike 122, camera 121 in Video Capture pattern or image capture mode by image Still image or the view data of video that acquisition equipment obtains process.Picture frame after process can show Show on display unit 151.Picture frame after camera 121 processes can be stored in memorizer 160 (or its Its storage medium) in or be transmitted via wireless communication unit 110, can be according to the structure of mobile terminal Two or more cameras 121 are provided.Mike 122 can be at telephone calling model, logging mode, voice Recognition mode etc. operational mode receives sound (voice data) via mike, and can be by such Acoustic processing is voice data.Audio frequency (voice) data after process can be in the case of telephone calling model Be converted to be sent to the form output of mobile communication base station via mobile communication module 112.Mike 122 Various types of noise elimination (or suppression) algorithm can be implemented and receiving and transmission audio frequency to eliminate (or suppression) The noise produced during signal or interference.
It is mobile whole to control that user input unit 130 can generate key input data according to the order of user's input The various operations of end.User input unit 130 allows user to input various types of information, and can wrap Include keyboard, metal dome, touch pad (such as, detection due to touched and cause resistance, pressure, electric capacity etc. Deng the sensitive component of change), roller, rocking bar etc..Especially, it is superimposed upon as a layer when touch pad Time on display unit 151, touch screen can be formed.
The black card of electronics 140 is arranged at the incident side of magazine cmos sensor, and this electronics is black is stuck in power down Time be in pellucidity and make light can enter cmos image sensor, be in nontransparent shape when powering on State, blocks the light entering cmos image sensor, then only needs when mobile terminal carries out overall situation exposure Card power down black to electronics, and when end exposure, card black to electronics powers on, with the pixel number after being exposed According to reading, the black card of this electronics can be realized by liquid crystal panel or transparent electron thin film.
Output unit 150 is configured to provide output signal (such as, with vision, audio frequency and/or tactile manner Audio signal, video signal, alarm signal, vibration signal etc.).Output unit 150 can include display Unit 151 and dio Output Modules 152 etc..
Display unit 151 may be displayed on the information processed in mobile terminal 100.Such as, mobile terminal is worked as 100 when being in telephone calling model, display unit 151 can show and call or other communicate (such as, civilian This information receiving and transmitting, multimedia file download etc.) relevant user interface (UI) or graphic user interface (GUI). When mobile terminal 100 is in video calling pattern or image capture mode, display unit 151 can show Show the image of capture and/or the image of reception, UI or GUI etc. of video or image and correlation function is shown Deng.
Meanwhile, when display unit 151 and touch pad the most superposed on one another to form touch screen time, aobvious Show that unit 151 can serve as input equipment and output device.Display unit 151 can include liquid crystal display (LCD), thin film transistor (TFT) LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexibility show Show at least one in device, three-dimensional (three-dimensional) display etc..Some in these display can be constructed For transparence to allow user to watch from outside, this is properly termed as transparent display, typical transparent display Can for example, TOLED (transparent organic light emitting diode) display etc..According to the specific embodiment party wanted Formula, mobile terminal 100 can include two or more display units (or other display device), such as, move Dynamic terminal can include outernal display unit (not shown) and inner display unit (not shown).Touch screen can be used for Detect touch input pressure and touch input position and touch input area.
Dio Output Modules 152 can be in call signal at mobile terminal and receive pattern, call mode, note Time under the isotypes such as record pattern, speech recognition mode, broadcast reception mode, wireless communication unit 110 is connect Receive or in memorizer 160 storage voice data transducing audio signal and be output as sound.And, Dio Output Modules 152 can provide the audio frequency output (example relevant to the specific function of mobile terminal 100 execution As, call signal receives sound, message sink sound etc.).Dio Output Modules 152 can include pickup Device, buzzer etc..
Memorizer 160 can store the process performed by controller 180 and the software program controlling operation etc., Or can temporarily store data (such as, telephone directory, message, the static map that oneself maybe will export through output Picture, video etc.).And, memorizer 160 can store about the output when touch is applied to touch screen The vibration of various modes and the data of audio signal.
Memorizer 160 can include the storage medium of at least one type, storage medium include flash memory, hard disk, Multimedia card, card-type memorizer (such as, SD or DX memorizer etc.), random access storage device (RAM), Static random-access memory (SRAM), read only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory (PROM), magnetic storage, disk, CD etc..And, Mobile terminal 100 can be connected the network storage device of the storage function performing memorizer 160 with by network Cooperation.
Interface unit 170 is used as at least one external device (ED) and is connected, with mobile terminal 100, the interface that can pass through. Such as, external device (ED) can include wired or wireless head-band earphone port, external power source (or battery charger) Port, wired or wireless FPDP, memory card port, for connecting the end of device with identification module Mouth, audio frequency input/output (I/O) port, video i/o port, ear port etc..Identification module can be Storage is for verifying that user uses the various information of mobile terminal 100 and can include subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) etc..It addition, have identification The device (hereinafter referred to as " identification device ") of module can be to take the form of smart card, therefore, identifies device Can be connected with mobile terminal 100 via port or other attachment means.Interface unit 170 may be used for connecing Receive from external device (ED) input (such as, data message, electric power etc.) and will receive input transmission One or more elements in mobile terminal 100 or may be used between mobile terminal and external device (ED) Transmission data.
It addition, when mobile terminal 100 is connected with external base, interface unit 170 can serve as allowing to lead to Cross it provide the path of mobile terminal 100 by electric power from base or can serve as allowing from base input Various command signals are transferred to the path of mobile terminal by it.From various command signals or the electricity of base input Power may serve as identifying whether mobile terminal is accurately fitted within the signal on base.
Controller 180 generally controls the overall operation of mobile terminal.Such as, controller 180 performs and voice Control that call, data communication, video calling etc. are relevant and process.It addition, controller 180 can wrap Including the multi-media module 181 for reproducing (or playback) multi-medium data, multi-media module 181 can construct In controller 180, or it is so structured that separate with controller 180.Controller 180 can perform pattern Identifying processing, is identified as character or figure the handwriting input performed on the touchscreen or image rendering to be inputted Picture.
Power subsystem 190 receives external power or internal power under the control of controller 180 and provides behaviour Make the suitable electric power needed for each element and assembly.
Various embodiment described herein can be to use such as computer software, hardware or its any combination Computer-readable medium implement.Implementing for hardware, embodiment described herein can be by using Application-specific IC (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, control Device processed, microcontroller, microprocessor, it is designed to perform in the electronic unit of function described herein extremely Few one is implemented, and in some cases, such embodiment can be implemented in controller 180.Right Implementing in software, the embodiment of such as process or function can perform at least one function or operation with permission Single software module implement.Software code can be by the software write with any suitable programming language Application program (or program) is implemented, and software code can be stored in memorizer 160 and by controller 180 perform.
So far, oneself is through describing mobile terminal according to its function.Below, for the sake of brevity, will describe all In various types of mobile terminals of folded form, board-type, oscillating-type, slide type mobile terminal etc. Slide type mobile terminal is as example.Therefore, the present invention can be applied to any kind of mobile terminal, and And it is not limited to slide type mobile terminal.
As shown in Figure 3 mobile terminal 100 may be constructed such that and utilizes via frame or packet transmission data The most wired and wireless communication system and satellite-based communication system operate.
The communication system being wherein operable to according to the mobile terminal of the present invention is described referring now to Fig. 4.
Such communication system can use different air interfaces and/or physical layer.Such as, by communication system The air interface used includes such as frequency division multiple access (FDMA), time division multiple acess (TDMA), CDMA (CDMA) and UMTS (UMTS) (especially, Long Term Evolution (LTE)), the whole world Mobile communication system (GSM) etc..As non-limiting example, explained below relates to CDMA and leads to Communication system, but such teaching is equally applicable to other type of system.
With reference to Fig. 4, cdma wireless communication system can include multiple mobile terminal 100, multiple base station (BS) 270, base station controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is constructed For forming interface with Public Switched Telephony Network (PSTN) 290.MSC280 be also structured to can be through The BSC275 being couple to base station 270 by back haul link forms interface.If back haul link can be known according to Ganji Interface in any one construct, described interface includes such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL.It will be appreciated that system as shown in Figure 4 can include multiple BSC275。
Each BS270 can service one or more subregion (or region), by multidirectional antenna or point to specific Each subregion that the antenna in direction covers is radially away from BS270.Or, each subregion can be by being used for Two or more antennas of diversity reception cover.Each BS270 may be constructed such that support multiple frequencies distribution, And the distribution of each frequency has specific frequency spectrum (such as, 1.25MHz, 5MHz etc.).
Intersecting that subregion and frequency are distributed can be referred to as CDMA Channel.BS270 can also be referred to as base station Transceiver subsystem (BTS) or other equivalent terms.In this case, term " base station " is permissible For broadly representing single BSC275 and at least one BS270.Base station can also be referred to as " cellular station ". Or, each subregion of specific BS270 can be referred to as multiple cellular station.
As shown in Figure 4, broadcast singal is sent in system operation by broadcsting transmitter (BT) 295 Mobile terminal 100.Broadcast reception module 111 as shown in Figure 4 is arranged on mobile terminal 100 and sentences Receive the broadcast singal sent by BT295.In fig. 4 it is shown that several global positioning systems (GPS) Satellite 300.Satellite 300 helps to position at least one in multiple mobile terminals 100.
In the diagram, depict multiple satellite 300, it is understood that be, it is possible to use any number of defend Star obtains useful location information.GPS module 115 is generally configured to and satellite 300 as shown in Figure 4 Coordinate the location information wanted with acquisition.Substitute GPS tracking technique or outside GPS tracking technique, Other technology of the position that can follow the tracks of mobile terminal can be used.It addition, at least one gps satellite 300 Can optionally or additionally process satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives from various mobile terminals 100 Reverse link signal.Mobile terminal 100 generally participates in call, information receiving and transmitting communicates with other type of.Special The each reverse link signal determining base station 270 reception is processed in specific BS270.The data obtained It is forwarded to the BSC275 being correlated with.BSC provides call resource distribution and the soft handover included between BS270 The mobile management function of the coordination of process.The data received also are routed to MSC280 by BSC275, and it carries For the extra route service for forming interface with PSTN290.Similarly, PSTN290 and MSC280 Forming interface, MSC Yu BSC275 forms interface, and BSC275 correspondingly controls BS270 with will just It is sent to mobile terminal 100 to link signal.
With reference to the electrical structure block diagram that Fig. 5, Fig. 5 are camera in Fig. 3.
Photographic lens 1211 is made up of the multiple optical lens for forming shot object image, for single-focus lens or Zoom lens.Photographic lens 1211 can move under the control of lens driver 1221 in the direction of the optical axis, Lens driver 1221, according to the control signal from lens driving control circuit 1222, controls photographic lens The focal position of 1211, in the case of zoom lens, it is possible to control focal length.Lens driving controls electricity Road 1222 carries out the driving control of lens driver 1221 according to the control command from microcomputer 1217 System.
Near the position of the shot object image formed on the optical axis of photographic lens 1211, by photographic lens 1211 It is configured with imaging apparatus 1212.Imaging apparatus 1212 is for imaging shot object image and obtaining photographed images number According to.On imaging apparatus 1212 two dimension and be arranged in a matrix the photodiode constituting each pixel.Each light Electric diode produces the opto-electronic conversion electric current corresponding with light income, this opto-electronic conversion electric current by with each photoelectricity two pole The capacitor that pipe connects carries out charge accumulation.The front surface of each pixel is configured with the RGB colour filter of Bayer arrangement Device, is photo-sensitive cell such as cmos image sensor and ccd image sensor in this imaging apparatus 1212.
Imaging apparatus 1212 is connected with imaging circuit 1213, and this imaging circuit 1213 is at imaging apparatus 1212 In carry out charge accumulation control and picture signal read control, the picture signal (analog picture signal) to this reading Reduce to reset and carry out waveform shaping after noise, and then carry out gain raising etc. to become suitable signal level.
Imaging circuit 1213 is connected with A/D converter 1214, and this A/D converter 1214 is to analog image Signal carries out analog digital conversion, to bus 1227 output digital image signal (hereinafter referred to as view data).
Bus 1227 is the transmission path for being transmitted in the various data that the inside of camera reads or generates.? Bus 1227 is connected to above-mentioned A/D converter 1214, is additionally connected to image processor 1215, JPEG Processor 1216, microcomputer 1217, SDRAM (Synchronous Dynamic random access Memory, SDRAM (Synchronous dynamic random access memory)) 1218, memory interface (hereinafter referred to as memorizer I/F) 1219, LCD (Liquid Crystal Display, liquid crystal display) driver 1220.
Image processor 1215 carries out OB to the view data of output based on imaging apparatus 1212 and subtracts each other place Reason, blank level adjustment, color matrix computing, gamma conversion, colour difference signal process, noise removal process, The various image procossing such as change process simultaneously, edge treated.Jpeg processor 1216 is by Imagery Data Recording In time recording medium 1225, compress the view data read from SDRAM1218 according to JPEG compression mode. Additionally, jpeg processor 1216 carries out the decompression of jpeg image data to carry out image reproducing to show Contracting.When decompressing, read record file in record medium 1225, at jpeg processor 1216 In implement decompression after, the view data of decompression is temporarily stored in SDRAM1218 and Show on LCD1226.It addition, in the present embodiment, decompress mode as compression of images and use Be JPEG mode, but compressed and decompressed mode is not limited to this, it is of course possible to use MPEG, TIFF, H.264 other compressed and decompressed mode is waited.
Microcomputer 1217 plays the function in the control portion overall as this camera, is uniformly controlled each of camera Plant and process sequence.Microcomputer 1217 is connected to operating unit 1223 and flash memory 1224.
Operating unit 1223 includes but not limited to physical button or virtual key, and this entity or virtual key can Think power knob, key of taking pictures, edit key, dynamic image button, reproduction button, menu button, ten The operation controls such as various load buttons and various input keys such as keyboard, OK button, deletion button, large buttons Part, detects the mode of operation of these operational controls.
Testing result is exported to microcomputer 1217.Additionally, the LCD1226's as display Front surface is provided with touch panel, and the touch location of detection user, by this touch location to microcomputer 1217 Output.Microcomputer 1217, according to the testing result of the operating position from operating unit 1223, performs The various process sequences corresponding with the operation of user.
Flash memory 1224 storage is for performing the program of the various process sequences of microcomputer 1217.Microcomputer Calculation machine 1217 carries out, according to this program, the control that camera is overall.Additionally, flash memory 1224 stores the various of camera Adjusted value, microcomputer 1217 reads adjusted value, carries out the control of camera according to this adjusted value.
SDRAM1218 is can the electric volatile storage rewritten for temporarily store view data etc. Device.This SDRAM1218 temporarily store from A/D converter 1214 output view data and at image at Reason device 1215, jpeg processor 1216 etc. have carried out the view data after processing.
Memory interface 1219 is connected with record medium 1225, carries out view data and is attached to picture number File first-class data write record medium 1225 according to and the control of reading from record medium 1225.Note Recording medium 1225 for example, can on camera main-body the record such as the memory card of disassembled and assembled freely medium, but not It is limited to this, it is also possible to be the hard disk etc. being built in camera main-body.
Lcd driver 1210 is connected with LCD1226, the image after being processed by image processor 1215 Data are stored in SDRAM1218, when needing display, read the view data of SDRAM1218 storage also LCD1226 shows, or, the compressed view data of jpeg processor 1216 is stored in SDRAM1218, when needs show, jpeg processor 1216 reads the compressed of SDRAM1218 View data, then decompress, the view data after decompressing is shown by LCD1226.
LCD1226 is arranged in the back side of camera main-body to carry out image and shows.This LCD1226LCD), but It is not limited to this, it would however also be possible to employ the various display floater such as organic EL (LCD1226), but is not limited to this, The various display floaters such as organic EL can also be used.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the inventive method is proposed.
Embodiment one
Embodiments provide a kind of mobile terminal.Fig. 6 is the one of the mobile terminal of the embodiment of the present invention Plant composition structural representation;As shown in Figure 6, described mobile terminal includes ccd image sensing unit 41; The incident side of described ccd image sensing unit 41 is provided with the black card of electronics 42;The black card of described electronics 42 exists It is pellucidity under power-down state, passes so that light enters described ccd image through the black card of described electronics 42 Sense unit 41;The black card of described electronics 42 is alternatively non-transparent state under power-up state, to block the described CCD of entrance The light of image sensing cell 41;
Described mobile terminal also includes: control unit 43 and data-reading unit 44;Wherein,
Described control unit 43, when described ccd image sensing unit 41 gathers view data, controls Carry out overall situation exposure;And when exposure time reaches predetermined threshold value, control the black card of described electronics 42 and power on;
Described data-reading unit 44, for powering on when described control unit 43 controls the black card of described electronics 42 Time, line by line/interlacing scan exposure data.
In the present embodiment, it is portable that described mobile terminal is specifically as follows mobile phone, panel computer, intelligent glasses etc. Intelligent terminal.The ccd image sensing unit 41 of described mobile terminal can be understood as the shooting unit in Fig. 5 Part;Described ccd image sensing unit 41 has overall exposure mode.
In the present embodiment, described mobile terminal is provided with the black card of electronics 42;The black card of described electronics 42 can be arranged Surface in ccd image sensing unit 41 incident side, it is possible to be fixed on ccd image by fixing device The incident side of sensing unit 41, or it is arranged at the inside of ccd image sensing unit 41, art technology Personnel can the position of card 42 black to electronics as required be configured.
The black card of described electronics 42 can be liquid crystal panel or transparent electron thin film, described liquid crystal panel or transparent electron Thin film may be disposed at the surface of ccd image sensing unit 41 incident side, it is possible to is fixed on by fixing device The incident side of ccd image sensing unit 41.Can be by change liquid crystal panel or the transparent electron thin film of powering on Array of display so that liquid crystal panel or transparent electron thin film are in non-transparent state.It is understood that The black card of described electronics 42 may be used without other light transmissive material, to realize printing opacity under power-down state, and is powering on State is light tight.Further, the different size of current being carried on the black card of described electronics 42 is corresponding The light transmittance of the black card of described electronics 42 is different;It is to be understood that the electric current being carried on the black card of electronics 42 is more Little, the light transmittance of the black card of described electronics 42 is the highest, and the black card of described electronics 42 more levels off to transparent;It is carried in Electric current on the black card of electronics 42 is the biggest, and the light transmittance of the black card of described electronics 42 is the lowest, the black card of described electronics 42 More level off to opaque.
In the present embodiment, described control unit 43 is for gathering image at described ccd image sensing unit 41 During data, control to carry out overall situation exposure, so that described ccd image sensing unit 41 is in overall situation exposure mould Formula.And when exposure time reaches predetermined threshold value, control the black card of described electronics 42 and power on, to block entrance The light of described ccd image sensing unit 41.When described control unit 43 controls the black card of described electronics 42 When powering on, described data-reading unit 44 line by line/interlacing scan exposure data.Accordingly, described control is single Unit 43, be additionally operable to when described data-reading unit 44 line by line/after interlacing scan exposure data completes, control institute State electronics black card 42 power down.
As a kind of embodiment, as a example by described data-reading unit 44 interlacing scan exposure data, described Data-reading unit 44, for when described control unit 43 control the black card of described electronics 42 power on time, scanning And shift the exposure data of odd-numbered line, the exposure data of the described odd-numbered line after transfer is amplified and modulus Export after conversion;Scan and shift the exposure data of even number line, by the impression of the described even number line after transfer According to be amplified with analog digital conversion after export.
Concrete, Fig. 7 is the control process schematic of the mobile terminal of the embodiment of the present invention;In conjunction with Fig. 7 institute Showing, ccd image sensing unit 41 All Datarows (including odd-numbered line and even number line) starts simultaneously at exposure, Time of exposure is from the beginning of the T0 moment.Reach predetermined threshold value, i.e. time of exposure between upon exposure and reach the T1 moment Time, described control unit 43 controls the black card of electronics 42 and carries out power on operation, now, the black card of described electronics 42 Black shading status, the luminous flux of the most described ccd image sensing unit 41 is converted to from pellucidity It is zero.Wherein, T0 to T1 is the exposure time of ccd image sensing unit 41 during this period of time, when this section Between the exposure time of all row of ccd image sensing unit consistent.
In the T1 moment, the odd-numbered line exposure data of described ccd image sensing unit 41 proceeds by The transfer of electric charge, transfers to the electric charge of the accumulation of photosensitive area in vertical electric charge depositor (VCCD);Will Electric charge in vertical electric charge depositor (VCCD) is transferred in horizontal charge depositor (HCCD) also line by line It is amplified after analog digital conversion exporting.After odd-numbered line exposure data all shifts and changes output, i.e. T2 In the moment, antithesis several rows exposure data carries out electric charge transfer, transfers to hang down by the electric charge of the accumulation of photosensitive area In straight electric charge depositor (VCCD);Electric charge in vertical electric charge depositor (VCCD) is transferred to line by line In horizontal charge depositor (HCCD) and be amplified with analog digital conversion after export.
After all even number line exposure datas shift output completely, i.e. in the T3 moment, described control unit 43 is right The black card of electronics 42 carries out power-down operation, and the black card of described electronics 42 transfers pellucidity to.
Use the technical scheme of the embodiment of the present invention, block entrance ccd image biography by powering on of the black card of electronics The light of sense unit, with the digital independent of the pixel after being exposed, owing to electronics black card power up is non- Often it is switched fast duration negligible, so the black card of the electronics of the embodiment of the present invention can overcome mechanical shutter On service life with the shortcoming closed in terms of delay, use and replace traditional mechanical shutter completely, relatively Service life is substantially prolongs in mechanical shutter.
Embodiment two
The embodiment of the present invention additionally provides a kind of mobile terminal.Fig. 8 is the mobile terminal of the embodiment of the present invention Another kind of composition structural representation;As shown in Figure 8, described mobile terminal includes ccd image sensing unit 41;The incident side of described ccd image sensing unit 41 is provided with the black card of electronics 42;The black card of described electronics 42 It is pellucidity under power-down state, so that light enters described ccd image through the black card of described electronics 42 Sensing unit 41;The black card of described electronics 42 is alternatively non-transparent state under power-up state, described to block entrance The light of ccd image sensing unit 41;
Described mobile terminal also includes: control unit 43, data-reading unit 44 and acquiring unit 45;Its In,
Described control unit 43, when described ccd image sensing unit 41 gathers view data, controls Carry out overall situation exposure;And when exposure time reaches predetermined threshold value, control the black card of described electronics 42 and power on;
Described data-reading unit 44, for powering on when described control unit 43 controls the black card of described electronics 42 Time, line by line/interlacing scan exposure data;
Described acquiring unit 45, when being used for detecting image capture instruction, obtains the black card of described electronics 42 State;
Accordingly, described control unit 43, being additionally operable in the state of the black card of described electronics 42 is power-up state Time, control black card 42 power down of described electronics, to carry out overall situation exposure.
Being different from the mobile terminal described in embodiment one, in the present embodiment, described mobile terminal also includes obtaining Unit 45, during image capture instruction (i.e. photographing instruction) just to be detected by described acquiring unit 45, The state obtaining the black card of described electronics 42 is a powering up state or power-down state;The black card of electronics 42 that will obtain State send to described control unit 43.Described control unit 43 gets the shape of the black card of described electronics 42 When state is power-up state, when the black card of the most described electronics 42 is in alternatively non-transparent state, control the black card of described electronics 42 power down, so that described ccd image sensing unit 41 can carry out overall situation exposure.
As a kind of embodiment, described control unit 43, it is additionally operable to detect when shutter close instructs, control Make the black card of described electronics 42 to power on;Or, when detecting that shutter opening instructs, control the black card of described electronics 42 power down.
Concrete, for improving the motility that card 42 black to electronics controls, the manually controllable described electronics of user is black Card 42 power on and power down is to realize the opening and closing of global shutter.User can be shown by mobile terminal Physical button on virtual control, mobile terminal or gesture and speech trigger enabling out code on interface Instruct with shutter opening, to realize the control of the active to shutter so that process of taking pictures is more flexible.
When being appreciated that, the situation failed owing to being likely to occur exposure, as light intensity is too big, cause exposure The image local obtained is the brightest, then sentenced by the pixel value that each pixel is corresponding when reading exposure data Break and whether expose unsuccessfully (as the brightest in local), when exposing unsuccessfully, re-execute the operation of the present embodiment.
Use the technical scheme of the embodiment of the present invention, block entrance ccd image biography by powering on of the black card of electronics The light of sense unit, with the digital independent of the pixel after being exposed, owing to electronics black card power up is non- Often it is switched fast duration negligible, so the black card of the electronics of the embodiment of the present invention can overcome mechanical shutter On service life with the shortcoming closed in terms of delay, use and replace traditional mechanical shutter completely, relatively Service life is substantially prolongs in mechanical shutter.
In the embodiment of the present invention one and embodiment, the acquiring unit 45 in described mobile terminal, control unit 43 With data-reading unit 44, the most all can by described mobile terminal central processing unit (CPU, Central Processing Unit), digital signal processor (DSP, Digital Signal Processor) or Programmable gate array (FPGA, Field-Programmable Gate Array) realizes;Described mobile terminal In CCD sensing unit, can be realized by ccd sensor in actual applications;In described mobile terminal The black card of electronics 42, can be realized by liquid crystal panel or electric thin in actual applications.
Embodiment three
Based on the mobile terminal described in embodiment one, the embodiment of the present invention additionally provides a kind of exposure method, institute State exposure method to be applied in mobile terminal.Described mobile terminal includes that charge coupled cell ccd image senses Unit;The incident side of described ccd image sensing unit is provided with the black card of electronics;Described electronics is black is stuck in power down It is pellucidity under state, so that light enters described ccd image sensing unit through the black card of described electronics; Black being stuck under power-up state of described electronics is alternatively non-transparent state, to block the described ccd image sensing unit of entrance Light.Fig. 9 is a kind of schematic flow sheet of the exposure method of the embodiment of the present invention;As it is shown in figure 9, institute State exposure method to include:
Step 501: when described ccd image sensing unit gathers view data, controls to carry out overall situation exposure.
Step 502: detection exposure time.
Step 503: when described exposure time reaches predetermined threshold value, controls the black card of described electronics and powers on, with And line by line/interlacing scan exposure data.
In the present embodiment, it is portable that described mobile terminal is specifically as follows mobile phone, panel computer, intelligent glasses etc. Intelligent terminal.The ccd image sensing unit of described mobile terminal can be understood as the imaging apparatus in Fig. 5; Described ccd image sensing unit has overall exposure mode.
In the present embodiment, described mobile terminal is provided with the black card of electronics;The black card of described electronics may be disposed at CCD The surface of image sensing cell incident side, it is possible to be fixed on entering of ccd image sensing unit by fixing device Light side, or it is arranged at the inside of ccd image sensing unit, those skilled in the art can be as required to electricity The position of the black card of son is configured.
The black card of described electronics can be liquid crystal panel or transparent electron thin film, and described liquid crystal panel or transparent electron are thin Film may be disposed at the surface of ccd image sensing unit incident side, it is possible to is fixed on CCD by fixing device The incident side of image sensing cell.Can be by change liquid crystal panel or the display battle array of transparent electron thin film of powering on Row, so that liquid crystal panel or transparent electron thin film are in non-transparent state.It is understood that described electricity The black card of son may be used without other light transmissive material, to realize printing opacity under power-down state and impermeable at power-up state Light.Further, the corresponding described electronics of different size of current being carried on the black card of described electronics is black The light transmittance of card is different;It is to be understood that the electric current being carried on the black card of electronics is the least, the black card of described electronics Light transmittance the highest, the black card of described electronics more levels off to transparent;The electric current being carried on the black card of electronics is the biggest, The light transmittance of the black card of described electronics is the lowest, and the black card of described electronics more levels off to opaque.
In the present embodiment, when described ccd image sensing unit gathers view data, control to carry out overall situation exposure Light, so that described ccd image sensing unit is in overall situation exposure mode.And reach default at exposure time During threshold value, control the black card of described electronics and power on, to block the light entering described ccd image sensing unit. When controlling the black card of described electronics and powering on, line by line/interlacing scan exposure data.Accordingly, line by line/interlacing scan After exposure data completes, control the black card power down of described electronics.
As a kind of embodiment, as a example by interlacing scan exposure data, on the black card of the described electronics of described control Electricity, and line by line/interlacing scan exposure data, including: control the black card of described electronics power on time, scan and turn Move the exposure data of odd-numbered line, the exposure data of the described odd-numbered line after transfer is amplified and analog digital conversion Rear output;Scan and shift the exposure data of even number line, the exposure data of the described even number line after transfer is entered Row amplifies and exports after analog digital conversion.
Accordingly, after the exposure data of described odd-numbered line and the exposure data conversion output of even number line, described side Method also includes: control the black card power down of described electronics.
Concrete, shown in Fig. 7, ccd image sensing unit All Datarows (includes odd-numbered line and idol Several rows) start simultaneously at exposure, time of exposure is from the beginning of the T0 moment.Predetermined threshold value is reached between upon exposure, When i.e. time of exposure reaches T1 moment, control the black card of electronics 42 and carry out power on operation, now, described electronics Black card is converted to black shading status, the luminous flux of the most described ccd image sensing unit from pellucidity It is zero.Wherein, T0 to T1 is the exposure time of ccd image sensing unit during this period of time, during this period of time The exposure time of all row of CCD sensing unit is consistent.
In the T1 moment, the odd-numbered line exposure data of described ccd image sensing unit proceeds by electric charge Transfer, the electric charge of the accumulation of photosensitive area is transferred in vertical electric charge depositor (VCCD);Will be vertical Electric charge in electric charge depositor (VCCD) is transferred to line by line in horizontal charge depositor (HCCD) and carries out Amplify and export after analog digital conversion.After odd-numbered line exposure data all shifts and changes output, i.e. during T2 At quarter, antithesis several rows exposure data carries out electric charge transfer, is transferred to vertically by the electric charge of the accumulation of photosensitive area In electric charge depositor (VCCD);Electric charge in vertical electric charge depositor (VCCD) is transferred to water line by line In ordinary telegram lotus depositor (HCCD) and be amplified with analog digital conversion after export.
After all even number line exposure datas shift output completely, i.e. in the T3 moment, control to stick into electronics is black Row power-down operation, the black card of described electronics transfers pellucidity to.
Use the technical scheme of the embodiment of the present invention, block entrance ccd image biography by powering on of the black card of electronics The light of sense unit, with the digital independent of the pixel after being exposed, owing to electronics black card power up is non- Often it is switched fast duration negligible, so the black card of the electronics of the embodiment of the present invention can overcome mechanical shutter On service life with the shortcoming closed in terms of delay, use and replace traditional mechanical shutter completely, relatively Service life is substantially prolongs in mechanical shutter.
Embodiment four
Based on embodiment two, the embodiment of the present invention additionally provides a kind of exposure method, and described exposure method is applied In mobile terminal.Described mobile terminal includes charge coupled cell ccd image sensing unit;Described CCD The incident side of image sensing cell is provided with the black card of electronics;Described electronics is black to be stuck under power-down state as transparence State, so that light enters described ccd image sensing unit through the black card of described electronics;Described electronics is black to be stuck in It is alternatively non-transparent state under power-up state, to block the light entering described ccd image sensing unit.Figure 10 Another kind of schematic flow sheet for the exposure method of the embodiment of the present invention;As shown in Figure 10, described exposure method Including:
Step 501: when image capture instruction being detected, obtains the state of the black card of described electronics;At described electricity When the state of the black card of son is power-up state, control the black card power down of described electronics, to carry out overall situation exposure.
Step 502: when described ccd image sensing unit gathers view data, controls to carry out overall situation exposure.
Step 503: detection exposure time.
Step 504: when described exposure time reaches predetermined threshold value, controls the black card of described electronics and powers on, with And line by line/interlacing scan exposure data.
It is different from embodiment three, in the present embodiment, carries out overall situation exposure at described ccd image sensing unit Before, when image capture instruction (i.e. photographing instruction) being detected, obtain the state of the black card of described electronics;Institute State the state of electronics black card when being power-up state, control the black card power down of described electronics, to carry out overall situation exposure.
As a kind of embodiment, described method also includes: detect when shutter close instructs, and controls described The black card of electronics powers on;Or, when detecting that shutter opening instructs, control the black card power down of described electronics.
Concrete, for improving the motility of card control black to electronics, user's black card of manually controllable described electronics Power on and power down is to realize the opening and closing of global shutter.User can pass through mobile terminal display interface Physical button on upper virtual control, mobile terminal or gesture and speech trigger enabling out code and fast Door open command, to realize the control of the active to shutter so that process of taking pictures is more flexible.
When being appreciated that, the situation failed owing to being likely to occur exposure, as light intensity is too big, cause exposure The image local obtained is the brightest, then sentenced by the pixel value that each pixel is corresponding when reading exposure data Break and whether expose unsuccessfully (as the brightest in local), when exposing unsuccessfully, re-execute the operation of the present embodiment.
Use the technical scheme of the embodiment of the present invention, block entrance ccd image biography by powering on of the black card of electronics The light of sense unit, with the digital independent of the pixel after being exposed, owing to electronics black card power up is non- Often it is switched fast duration negligible, so the black card of the electronics of the embodiment of the present invention can overcome mechanical shutter On service life with the shortcoming closed in terms of delay, use and replace traditional mechanical shutter completely, relatively Service life is substantially prolongs in mechanical shutter.
Figure 11 is the test control device a kind of schematic diagram as hardware entities of the embodiment of the present invention;Such as figure Shown in 11, described mobile terminal S11 include processor 71, storage medium 72, cmos sensor 74 with And at least one external communication interface 73;Described processor 71, storage medium 72, cmos sensor 74 And external communication interface 73 is all connected by bus 75.
It should be noted that in this article, term " include ", " comprising " or its any other variant meaning Containing comprising of nonexcludability, so that include the process of a series of key element, method, article or dress Put and not only include those key elements, but also include other key elements being not expressly set out, or also include for The key element that this process, method, article or device are intrinsic.In the case of there is no more restriction, by The key element that statement " including ... " limits, it is not excluded that including the process of this key element, method, thing Product or device there is also other identical element.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
In several embodiments provided herein, it should be understood that disclosed equipment and method, can To realize by another way.Apparatus embodiments described above is only schematically, such as, and institute Stating the division of unit, be only a kind of logic function and divide, actual can have other dividing mode when realizing, As: multiple unit or assembly can be in conjunction with, or it is desirably integrated into another system, or some features can be neglected Slightly, or do not perform.It addition, the coupling each other of shown or discussed each ingredient or directly coupling Close or communication connection can be the INDIRECT COUPLING by some interfaces, equipment or unit or communication connection, can Be electrical, machinery or other form.
The above-mentioned unit illustrated as separating component can be or may not be physically separate, as The parts that unit shows can be or may not be physical location, i.e. may be located at a place, it is possible to To be distributed on multiple NE;Part or all of unit therein can be selected according to the actual needs Realize the purpose of the present embodiment scheme.
It addition, each functional unit in various embodiments of the present invention can be fully integrated in a processing unit, Can also be that each unit is individually as a unit, it is also possible to two or more unit are integrated in one In individual unit;Above-mentioned integrated unit both can realize to use the form of hardware, it would however also be possible to employ hardware adds soft The form of part functional unit realizes.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can Completing with the hardware relevant by programmed instruction, aforesaid program can be stored in an embodied on computer readable and deposit In storage media, this program upon execution, performs to include the step of said method embodiment;And aforesaid storage Medium includes: movable storage device, read only memory (ROM, Read-Only Memory), deposit at random Access to memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey The medium of sequence code.
Or, if the above-mentioned integrated unit of the present invention is using the form realization of software function module and as independent Production marketing or use time, it is also possible to be stored in a computer read/write memory medium.Based on so Understanding, the part that prior art is contributed by the technical scheme of the embodiment of the present invention the most in other words can Embodying with the form with software product, this computer software product is stored in a storage medium, bag Include some instructions with so that a computer equipment (can be personal computer, server or network Equipment etc.) perform all or part of of method described in each embodiment of the present invention.And aforesaid storage medium bag Include: movable storage device, ROM, RAM, magnetic disc or CD etc. are various can store program code Medium.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should It is as the criterion with described scope of the claims.

Claims (10)

1. a mobile terminal, it is characterised in that described mobile terminal includes that charge coupled cell CCD schemes As sensing unit;The incident side of described ccd image sensing unit is provided with the black card of electronics;The black card of described electronics It is pellucidity under power-down state, so that light enters described ccd image sensing through the black card of described electronics Unit;Black being stuck under power-up state of described electronics is alternatively non-transparent state, to block entrance described ccd image biography The light of sense unit;
Described mobile terminal also includes: control unit and data-reading unit;Wherein,
Described control unit, when described ccd image sensing unit gathers view data, controls to carry out entirely Office's exposure;And when exposure time reaches predetermined threshold value, control the black card of described electronics and power on;
Described data-reading unit, is used for when the described control unit control black card of described electronics powers on, line by line/ Interlacing scan exposure data.
Mobile terminal the most according to claim 1, it is characterised in that described control unit, is additionally operable to When described data-reading unit line by line/after interlacing scan exposure data completes, control the black card power down of described electronics.
Mobile terminal the most according to claim 1, it is characterised in that described data-reading unit, uses In time powering on when the described control unit control black card of described electronics, scan and shift the exposure data of odd-numbered line, It is amplified the exposure data of the described odd-numbered line after transfer after analog digital conversion exporting;Scan and shift idol The exposure data of several rows, the exposure data of described even number line after transfer is amplified with analog digital conversion after defeated Go out.
Mobile terminal the most according to claim 3, it is characterised in that described control unit, for institute State data-reading unit the exposure data of odd-numbered line and the exposure data of even number line to be changed after exporting, control institute State electronics black card power down.
Mobile terminal the most according to claim 1, it is characterised in that described mobile terminal also includes obtaining Take unit, when being used for detecting image capture instruction, obtain the state of the black card of described electronics;
Described control unit, is additionally operable to, when the state of the black card of described electronics is power-up state, control described electricity The black card power down of son, to carry out overall situation exposure.
Mobile terminal the most according to claim 1, it is characterised in that described control unit, is additionally operable to Detect when shutter close instructs, control the black card of described electronics and power on;Or, detecting that shutter opening refers to When making, control the black card power down of described electronics.
7. an exposure method, is applied in mobile terminal;It is characterized in that, described mobile terminal includes electricity Lotus coupling element ccd image sensing unit;The incident side of described ccd image sensing unit is provided with electronics Black card;Described electronics is black to be stuck under power-down state as pellucidity, so that light sticks into through described electronics is black Enter described ccd image sensing unit;Black being stuck under power-up state of described electronics is alternatively non-transparent state, to block Enter the light of described ccd image sensing unit;Described method includes:
When described ccd image sensing unit gathers view data, control to carry out overall situation exposure;
Detection exposure time;
When described exposure time reaches predetermined threshold value, control the black card of described electronics and power on, and line by line/interlacing Scan exposure data.
Method the most according to claim 7, it is characterised in that described method also includes: line by line/every After row scan exposure data complete, control the black card power down of described electronics.
Method the most according to claim 7, it is characterised in that the black card of the described electronics of described control powers on, And line by line/interlacing scan exposure data, including:
Control described electronics black card when powering on, scan and shift the exposure data of odd-numbered line, by the institute after transfer The exposure data stating odd-numbered line is amplified after analog digital conversion exporting;Scan and shift the impression of even number line According to, it is amplified the exposure data of the described even number line after transfer after analog digital conversion exporting.
Method the most according to claim 9, it is characterised in that the exposure data of described odd-numbered line and After the exposure data conversion output of even number line, described method also includes: control the black card power down of described electronics.
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