CN101631199A - Mobile terminal, mobile terminal camera device and method for realizing camera - Google Patents

Mobile terminal, mobile terminal camera device and method for realizing camera Download PDF

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Publication number
CN101631199A
CN101631199A CN200910158138A CN200910158138A CN101631199A CN 101631199 A CN101631199 A CN 101631199A CN 200910158138 A CN200910158138 A CN 200910158138A CN 200910158138 A CN200910158138 A CN 200910158138A CN 101631199 A CN101631199 A CN 101631199A
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CN
China
Prior art keywords
clock
speed
camera
module
adjusted
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Application number
CN200910158138A
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Chinese (zh)
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CN101631199B (en
Inventor
李梅
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中兴通讯股份有限公司
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Priority to CN2009101581383A priority Critical patent/CN101631199B/en
Publication of CN101631199A publication Critical patent/CN101631199A/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0261Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0287Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level changing the clock frequency of a controller in the equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • 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
    • H04N5/23227Devices for controlling television cameras, e.g. remote control ; Control of cameras comprising an electronic image sensor involving internal camera communication with the image sensor, e.g. synchronizing or multiplexing SSIS control signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/12Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/52Details of telephonic subscriber devices including functional features of a camera
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention relates to a mobile terminal camera device which comprises a dynamic chip, a speed calculation module and a system clock modulation module which are sequentially connected. The dynamic chip is used for collecting the acceleration of the camera device and reporting the acceleration to the speed calculation module; the speed calculation module is used for calculating the current speed according to the initial speed of the camera device and the acceleration collected by the dynamic chip, and informing the system clock modulation module to carry out the clock modulation of the clock system; and the system clock modulation module is also used for modulating the system clock according to the current speed. The mobile terminal, the mobile terminal camera device and the method for realizing camera also can reduce the power consumption and save the electrical power.

Description

The method of portable terminal, mobile terminal camera device and realization shooting
Technical field
The method that the present invention relates to portable terminal, mobile terminal camera device and realize making a video recording.
Background technology
Present portable movable termination (such as mobile phone, digital camera etc.) has become requisite communication tool in people's life, and meanwhile, the multimedia function of portable terminal device is also more and more by more people's favor.But the complexity of system, the powerful big power consumption of bringing of function allows people that the use of multimedia function is hung back.In order to reduce relevant multimedia application power consumption, the patent that has adopts the mode of closing the LCD screen, and this can influence user experience after all, in most cases, the user all wish to see ownly take pictures, the scene of video recording and video coding; What have then reaches purpose of power saving by regulating the LCD brightness degree, general LCD brightness degree is about 10mA, transferring too secretly then influences visual effect, though regulating, general grade can reduce by tens mA, when carrying out the camera operation, static or low-speed motion can also accept, in case fast moving camera or what face is the higher scene of translational speed, then the pairing fixing frame per second of Gu Ding clock frequency seems again that frame per second is big inadequately and there is the holder shadow in scene that cause being got, if thereby directly set higher frame per second then require system to cause the power consumption of system and camera to increase greatly for the clock of camera.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of portable terminal, mobile terminal camera device and realizes the method for shooting, to reduce the Power Cutback electricity consumption.
For solving above technical problem, the invention provides a kind of mobile terminal camera device, described device comprises dynamic chip, speed calculation module and the system clock modulation module that connects successively, wherein:
Described dynamic chip is used to gather described camera head acceleration, and reports described speed calculation module;
Described speed calculation module is used for according to the camera head initial velocity of current application scene mode correspondence and the current speed of acceleration calculation of described dynamic chip collection, and notifies described system clock modulation module to carry out the clock system clock adjustment;
System clock modulation module also is used for according to current speed system clock being adjusted.
Further, preserve default speed class and corresponding clock grade in the described system clock modulation module, the speed class threshold value that different speed class is corresponding different, the system clock frequency that different clock grades is corresponding different, when described system clock modulation module is carried out the system clock frequency adjustment, with described current speed and described speed class threshold ratio after, determine corresponding speed class and clock grade, according to the clock grade of correspondence system clock frequency is adjusted again.
Further, described device also comprises the camera frame per second adjusting module that is connected with described system clock modulation module, and described system clock modulation module also is used to notify described camera frame per second adjusting module after adjusting clock frequency; Described camera frame per second adjusting module is used for adjusting the camera frame per second according to adjusted system clock frequency.
For solving the problems of the technologies described above, the present invention also provides a kind of portable terminal, and described portable terminal comprises the camera head that is used to make a video recording, and described camera head comprises dynamic chip, speed calculation module and the system clock modulation module that connects successively, wherein:
Described dynamic chip is used to gather the acceleration of camera head, and reports described speed calculation module;
Described speed calculation module is used for according to the camera head initial velocity of current application scene mode correspondence and the current speed of acceleration calculation of described dynamic chip collection, and notifies described system clock modulation module to carry out the clock system clock adjustment;
System clock modulation module also is used for according to current speed system clock being adjusted.
Further, preserve default speed class and corresponding clock grade in the described system clock modulation module, the speed class threshold value that different speed class is corresponding different, the system clock frequency that different clock grades is corresponding different, when described system clock modulation module is carried out the system clock frequency adjustment, with described current speed and described speed class threshold ratio after, determine corresponding speed class and clock grade, according to the clock grade of correspondence system clock frequency is adjusted again.
Further, described device also comprises the camera frame per second adjusting module that is connected with described system clock modulation module, and described system clock modulation module also is used to notify described camera frame per second adjusting module to carry out the adjustment of camera frame per second after adjusting clock frequency; Described camera frame per second adjusting module is used for adjusting the camera frame per second according to adjusted system clock frequency.
Further, the adjusted system clock grade of described system clock modulation module is not the lowest class that system can normally move, and do not receive in the fixed time interval that described speed calculation module reports new speed, described system clock modulation module is carried out the clock grade degradation and is adjusted.
For solving the problems of the technologies described above, the present invention also provides a kind of portable terminal to realize the method for shooting, and described method realizes that based on camera head described method comprises:
The acceleration acquisition step, during shooting, described camera head is gathered the acceleration of himself;
The speed calculation step, described camera head is according to the camera head initial velocity of current application scene mode correspondence and the current speed of acceleration calculation of collection;
The system clock set-up procedure, described camera head is adjusted system clock according to current speed.
Further, preserve default speed class and corresponding clock grade in the described camera head, the speed class threshold value that different speed class is corresponding different, the system clock frequency that different clock grades is corresponding different, in the described system clock set-up procedure, described camera head with described current speed and described speed class threshold ratio after, determine corresponding speed class and clock grade, according to the clock grade of correspondence system clock frequency is adjusted again.
Further, also comprise camera frame per second set-up procedure after the described system clock set-up procedure, described camera head is adjusted the camera frame per second according to adjusted system clock frequency.
The method of portable terminal of the present invention, mobile terminal camera device and realization shooting, according to the real-time speed size dynamic adjusting system clock frequency size of portable terminal device with the elephant of finding a view, reduce and use power consumption, thereby system clock need not remain on the state of full speed running always, and then reaches purpose of power saving; After system clock is dynamically adjusted, further dynamically adjust and give the camera clock, thereby dynamically adjusted the frame per second of camera, adapting to the different scene of movement velocity, the scene that movement velocity is low, the frame per second of camera output is lower, fast scene, the frame per second of camera output is higher, thus guarantee the user have when finding a view scene in the motion preferably effect (such as, find a view or taking moving in scene the time do not have a holder shadow etc.).
Description of drawings
Fig. 1 is the modular structure schematic diagram of mobile terminal camera device of the present invention.
Fig. 2 is the schematic diagram that portable terminal of the present invention is realized the method for shooting.
Fig. 3 is the schematic flow sheet that portable terminal is realized video recording.
Embodiment
The main thought of the method for portable terminal of the present invention, mobile terminal camera device and realization shooting is to utilize dynamic chip to gather the acceleration of camera head in real time, and according to the present speed that calculates, system clock is dynamically adjusted, thereby system clock need not remain on the state of full speed running always, and then reaches purpose of power saving.
As shown in Figure 1, the camera head of portable terminal of the present invention comprises and connects dynamic chip, speed calculation module, system clock modulation module and camera frame per second adjusting module successively, wherein:
Described dynamic chip is the device or the chip that can obtain acceleration in real time, is used to gather the acceleration of camera head, and reports described speed calculation module;
The purpose that adopts dynamic chip detection acceleration is to be consistent or to be more or less the same with the speed of the scene of finding a view as much as possible for the speed that makes camera head, camera head also will be as much as possible little with the relative velocity of the scene of finding a view like this, perhaps be in static relatively stage, be beneficial to shooting.
Dynamic chip can be connected with camera to gather acceleration, also can detect the acceleration of camera head voluntarily.
In general, camera, camera head and the portable terminal that possesses camera head are motionless relatively, and the acceleration of gathering camera head also is the acceleration of acquisition camera or portable terminal.
Dynamic chip is under the situation of full speed running, and the single-chip power consumption does not wait to the hundreds of microampere tens, and the power consumption of camera functions such as generally speaking, the power consumption of dynamic chip is compared and taken pictures, video recording or video coding can be ignored and do not remember.
Described speed calculation module is used for according to the camera head initial velocity of current application scene mode correspondence and the current speed of acceleration calculation of described dynamic chip collection, and notifies described system clock modulation module to carry out the clock system clock adjustment;
Here said camera head initial velocity is the speed according to the application scenarios pattern correspondence of taking, for example, the camera head initial velocity of normal mode is zero, the initial velocity of quick mode sets in advance, such as speed that the quick mode correspondence can be set and clock grade is highest, allows system at the very start at level works such as maximum clocks.
System clock modulation module is used for according to current speed system clock being adjusted; Also being used for carrying out the clock grade degradation according to the degradation notice of described speed calculation module adjusts; After the Adjustment System clock frequency, if adjusted system clock grade is not the lowest class that system can normally move, and do not receive in the fixed time interval that described speed calculation module reports new speed, described system clock modulation module also is used to carry out the clock grade degradation to be adjusted, and also is used to notify described camera frame per second adjusting module to carry out the adjustment of camera frame per second.
Preserve default speed class and corresponding clock grade in the described system clock modulation module, the speed class threshold value that different speed class is corresponding different, the system clock frequency that different clock grades is corresponding different, when described system clock modulation module is carried out the system clock frequency adjustment, with described current speed and described speed class threshold ratio after, determine corresponding speed class and clock grade, according to the clock grade of correspondence system clock frequency is adjusted again.
Camera head velocity magnitude regulating system clock frequency size according to portable terminal can reduce the application power consumption, finally reaches the power saving purpose.Certainly, the user can select to use the dynamically function of adjustment of this clock according to the personal like, or default setting uses.
Described camera frame per second adjusting module is used for adjusting the camera frame per second according to adjusted system clock frequency.
The camera frame per second refers to the frame per second of camera dateout, adjust the frame per second of camera dateout in real time according to current speed class, to adapt to the different scene of movement velocity, the scene that movement velocity is low, the frame per second of camera output is lower, fast scene, and the frame per second of camera output is higher, thereby guarantee the user have preferably when finding a view scene in the motion effect (such as, find a view or taking moving in scene the time do not have a holder shadow etc.).
The present invention also provides a kind of portable terminal, and this portable terminal includes but not limited to have the camera or the mobile phone of camera function, and described portable terminal comprises above-described camera head, and the function of its camera head is identical with above description.Be understandable that, the said camera head of the present invention, can with the integrated use of camera, also can separately realize, in addition, portable terminal also comprises the required digital baseband processor of other signal processing (DBB), analogue baseband processors (ABB), radio-frequency module, display screen etc. in order to realize complete functions of the equipments.
As shown in Figure 2, portable terminal of the present invention is realized the method for shooting, realizes that based on above camera head described method comprises:
Step 201: the acceleration acquisition step, during shooting, described camera head is gathered the acceleration of himself;
Step 202: the speed calculation step, described camera head is according to the camera head initial velocity of current application scene mode correspondence and the current speed of acceleration calculation of collection;
Step 203: the system clock set-up procedure, described camera head is adjusted system clock according to current speed;
Preserve default speed class and corresponding clock grade in the described camera head, the speed class threshold value that different speed class is corresponding different, the system clock frequency that different clock grades is corresponding different, in the described system clock set-up procedure, described camera head with described current speed and described speed class threshold ratio after, determine corresponding speed class and clock grade, according to the clock grade of correspondence system clock frequency is adjusted again.
Step 204: camera frame per second set-up procedure, described camera head is adjusted the camera frame per second according to adjusted system clock frequency.
In order to realize purpose of power saving, the present invention is divided into the N grade to the system clock frequency size, promptly corresponding N clock frequency threshold value, level_clk 0The time the minimum clock frequency that can normally move of the clock frequency system of being, level_clk N-1Be the clock frequency of system's full speed running.
For corresponding system clock frequency grade, the present invention also is divided into the N level to the camera translational speed, and threshold value is respectively 0 to V N-1, grade is level_v 0To level_v N-1
The user take pictures, in video recording or the video coding, at first can according to camera relatively the speed of the scene of finding a view corresponding application scenarios (such as normal mode, quick mode etc.) is set, promptly that correspondence is the initial velocity V that camera is set 0, system is V 0Compare with the speed class threshold value, thus the speed class of initialization system correspondence, and then the clock grade of definite system, adjust clock frequency in real time.Under the default situations, V 0=0.In video recording or the cataloged procedure, the acceleration calculation present speed V that system can report according to dynamic chip also determines speed place grade according to the threshold speed of different brackets, and and then the adjusting clock frequency of system in real time size, thereby remain on the state of full speed running without system clock, to reach power saving and to adjust the purpose of frame per second in real time always.
The said shooting of the present invention comprise take pictures, video recorder coding (for example: video telephone or videoshare) waits with camera and absorbs the relevant operation of image, below is example with the video recording, the present invention's realization flow of making a video recording is elaborated:
Is example below in conjunction with Fig. 3 with the video recording, gets the N=5 level, describes:
Step 301: the user opens dynamic chip when entering the video recording interface; According to the set application scenarios of user, the speed that the relative scene of recording of camera promptly is set is provided with initial velocity V then 0, system is V 0Compare with the speed class threshold value, thus the speed class level_v of initialization system correspondence, and then the clock grade level_clk of definite system, adjust clock frequency in real time.V under the default situations 0=0, speed class is level_v 0Level, then system clock is in level_clk 0Grade.
Step 302: press recording key, begin video recording;
Step 303:, then can initiatively report speed calculation module to the acceleration a that collects in case dynamic chip is checked through translational acceleration;
Step 304: speed calculation module is calculated the translational speed V of current current application scene mode correspondence according to acceleration a, and system clock modulation module is determined speed class N=5 according to threshold speed; Adjust the clock size voluntarily according to speed class, the maximum clock frequency grade is level_clk N-1(N=5); And adjust synchronously the clock frequency of giving camera, thereby the frame per second of having adjusted camera is to adapt to the scene in the motion;
If V>=V N-1, (N=5), then unification thinks that speed is in N level (N=5).
If speed or clock grade have been highest i.e. N levels, even if then detect acceleration once more, speed or clock grade still remain on the N level.
Step 305: system clock modulation module judgement clock and speed class are adjusted to certain non-0 grade, then start timer, fixed time interval time_interval, otherwise do not start timer;
Step 306: in fixed time interval time_interval, dynamic chip detection is then changeed step 303 to new acceleration a, otherwise changes step 307;
Step 307: if then at timing, speed calculation module is not received the acceleration that dynamic chip reports, system clock modulation module is not received new speed yet, and then system clock modulation module is fallen one-level automatically to clock grade and speed class, and changes step 305;
Automatically degradation can prevent that camera head is under the higher clock frequency operational mode always, can also further reach the effect of power saving simultaneously.
During the system clock degradation, give the also corresponding reduction of clock frequency of camera, adjust the frame per second of camera simultaneously.
Stop video recording, withdraw from.
The method of the invention is adapted to various suitable the present invention's field, require without prejudice to patent and general spiritual scope under, the present invention is not limited to specific details and equipment
The method of portable terminal of the present invention, mobile terminal camera device and realization shooting, according to portable terminal velocity magnitude dynamic adjusting system clock frequency size, reduce and use power consumption, thereby system clock need not remain on the state of full speed running always, and then reach purpose of power saving; After system clock is dynamically adjusted, further dynamically adjust and give the camera clock, thereby dynamically adjusted the frame per second of camera, adapting to the different scene of movement velocity, the scene that movement velocity is low, the frame per second of camera output is lower, fast scene, the frame per second of camera output is higher, thus guarantee the user have when finding a view scene in the motion preferably effect (such as, find a view or taking moving in scene the time do not have a holder shadow etc.).

Claims (10)

1, a kind of mobile terminal camera device is characterized in that, described device comprises dynamic chip, speed calculation module and the system clock modulation module that connects successively, wherein:
Described dynamic chip is used to gather described camera head acceleration, and reports described speed calculation module;
Described speed calculation module is used for according to the camera head initial velocity of current application scene mode correspondence and the current speed of acceleration calculation of described dynamic chip collection, and notifies described system clock modulation module to carry out the clock system clock adjustment;
System clock modulation module also is used for according to current speed system clock being adjusted.
2, device as claimed in claim 1, it is characterized in that: preserve default speed class and corresponding clock grade in the described system clock modulation module, the speed class threshold value that different speed class is corresponding different, the system clock frequency that different clock grades is corresponding different, when described system clock modulation module is carried out the system clock frequency adjustment, with described current speed and described speed class threshold ratio after, determine corresponding speed class and clock grade, according to the clock grade of correspondence system clock frequency is adjusted again.
3, as each described device in the claim 1 to 2, it is characterized in that: described device also comprises the camera frame per second adjusting module that is connected with described system clock modulation module, described system clock modulation module also is used to notify described camera frame per second adjusting module after adjusting clock frequency; Described camera frame per second adjusting module is used for adjusting the camera frame per second according to adjusted system clock frequency.
4, a kind of portable terminal, described portable terminal comprises the camera head that is used to make a video recording, and it is characterized in that, described camera head comprises dynamic chip, speed calculation module and the system clock modulation module that connects successively, wherein:
Described dynamic chip is used to gather the acceleration of camera head, and reports described speed calculation module;
Described speed calculation module is used for according to the camera head initial velocity of current application scene mode correspondence and the current speed of acceleration calculation of described dynamic chip collection, and notifies described system clock modulation module to carry out the clock system clock adjustment;
System clock modulation module also is used for according to current speed system clock being adjusted.
5, portable terminal as claimed in claim 4, it is characterized in that: preserve default speed class and corresponding clock grade in the described system clock modulation module, the speed class threshold value that different speed class is corresponding different, the system clock frequency that different clock grades is corresponding different, when described system clock modulation module is carried out the system clock frequency adjustment, with described current speed and described speed class threshold ratio after, determine corresponding speed class and clock grade, according to the clock grade of correspondence system clock frequency is adjusted again.
6, portable terminal as claimed in claim 4, it is characterized in that: described device also comprises the camera frame per second adjusting module that is connected with described system clock modulation module, described system clock modulation module also is used to notify described camera frame per second adjusting module to carry out the adjustment of camera frame per second after adjusting clock frequency; Described camera frame per second adjusting module is used for adjusting the camera frame per second according to adjusted system clock frequency.
7, as each described portable terminal in the claim 4 to 6, it is characterized in that: the adjusted system clock grade of described system clock modulation module is not the lowest class that system can normally move, and do not receive in the fixed time interval that described speed calculation module reports new speed, described system clock modulation module is carried out the clock grade degradation and is adjusted.
8, a kind of portable terminal is realized the method for shooting, and it is characterized in that: described method realizes that based on camera head described method comprises:
The acceleration acquisition step, during shooting, described camera head is gathered the acceleration of himself;
The speed calculation step, described camera head is according to the camera head initial velocity of current application scene mode correspondence and the current speed of acceleration calculation of collection;
The system clock set-up procedure, described camera head is adjusted system clock according to current speed.
9, method as claimed in claim 8, it is characterized in that: preserve default speed class and corresponding clock grade in the described camera head, the speed class threshold value that different speed class is corresponding different, the system clock frequency that different clock grades is corresponding different, in the described system clock set-up procedure, described camera head with described current speed and described speed class threshold ratio after, determine corresponding speed class and clock grade, according to the clock grade of correspondence system clock frequency is adjusted again.
10, method as claimed in claim 8 or 9 is characterized in that: also comprise camera frame per second set-up procedure after the described system clock set-up procedure, described camera head is adjusted the camera frame per second according to adjusted system clock frequency.
CN2009101581383A 2009-07-13 2009-07-13 Mobile terminal, mobile terminal camera device and method for realizing camera CN101631199B (en)

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CN2009101581383A CN101631199B (en) 2009-07-13 2009-07-13 Mobile terminal, mobile terminal camera device and method for realizing camera
PCT/CN2010/071773 WO2011006379A1 (en) 2009-07-13 2010-04-14 Mobile terminal, mobile terminal video camera device and method for implementing photographing

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