CN105320195B - Projection signal's processing method and processing device - Google Patents
Projection signal's processing method and processing device Download PDFInfo
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- CN105320195B CN105320195B CN201410299159.8A CN201410299159A CN105320195B CN 105320195 B CN105320195 B CN 105320195B CN 201410299159 A CN201410299159 A CN 201410299159A CN 105320195 B CN105320195 B CN 105320195B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
- Controls And Circuits For Display Device (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The present invention provides a kind of projection signal's processing method and processing devices, wherein this method includes the supply voltage of acquisition terminal；The voltage of the projection signal of projector on acquisition terminal；Judged whether to carry out decaying output to projection signal according to the voltage of supply voltage and/or projection signal, solve the problems, such as to lead to terminal closedown since the dash current of projector is excessive in the prior art or resetted.And then the optimized control that terminal uses battery capacity is realized, it avoids since projection impact causes the unexpected decline of battery capacity to lead to the risk of terminal closedown or reset, improves user experience.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of projection signal's processing method and processing device.
Background technique
Many portable terminals all have projection arrangement at present, these projection arrangements can throw the information on terminal screen
Shadow is amplified in background, is watched convenient for user, is allowed terminal to be positioned to may be located remotely from the eyes of user, and can more people
It watches simultaneously.
Portable terminal all provides power supply supply, when having projection arrangement, meeting by the way of rechargeable battery
A problem is brought, exactly when the voltage of battery will affect the increased voltage requirement of projection arrangement institute in some cases.No matter
When projection arrangement is directly to power from battery, or the increased mode of cell voltage is powered by boost in voltage module, in height
Under the projection output power of image quality, or projector is frequently switched on, can become larger suddenly for the current needs of battery, can lead at this time
Cell voltage reduction is sent a telegraph, voltage will lead to terminal closedown when reduction, or reset.
When battery capacity was also able to satisfy the use of a period of time originally, but cause since the dash current of projector is excessive
Terminal closedown or reset, for this problem, there is presently no particularly effective solutions.
Summary of the invention
The present invention provides a kind of projection signal's processing method and processing devices, at least to solve in the prior art due to projector
Dash current it is excessive cause terminal closedown or reset the problem of.
According to an aspect of the invention, there is provided a kind of projection signal's processing method characterized by comprising acquisition
The supply voltage of terminal；Acquire the voltage of the projection signal of the projector in the terminal；According to the supply voltage and/or institute
The voltage for stating projection signal judges whether to carry out decaying output to the projection signal.
Preferably, judged whether according to the voltage of the supply voltage and/or the projection signal to the projection signal
Carrying out decaying output includes: to be higher than second threshold lower than the voltage of first threshold and the projection signal in the supply voltage
In the case where, decaying output is carried out to the projection signal.
Preferably, judged whether according to the voltage of the supply voltage and/or the projection signal to the projection signal
Carry out decaying output further include: when meeting at least one the following conditions, do not decay to the projection signal, directly export
The projection signal: the supply voltage is greater than or equal to the first threshold, wherein the first threshold is the projection letter
The maximum voltage value that is no more than when number work；The voltage of the projection signal is less than or equal to the second threshold, wherein institute
State the minimum voltage that second threshold is projection signal necessary to guaranteeing minimum projection quality.
Preferably, carrying out decaying output to the projection signal includes: to believe according to scheduled attenuation coefficient the projection
Number decay.
Preferably, the method also includes the signals that: the projection signal is before not reaching projection driver also.
According to another aspect of the present invention, a kind of projection signal's processing unit is additionally provided, comprising: the first acquisition module
22, the supply voltage for acquisition terminal；Second acquisition module 24, for acquiring the projection signal of the projector in the terminal
Voltage；Judgment module 26, for being judged whether according to the voltage of the supply voltage and/or the projection signal to the throwing
Shadow signal carries out decaying output.
Preferably, described device further include: attenuation module 28, for being lower than first threshold and institute in the supply voltage
The voltage of projection signal is stated higher than in the case where second threshold, decaying output is carried out to the projection signal.
Preferably, the judgment module 26 is also used to when meeting at least one the following conditions, not to the projection signal
Decay, directly export the projection signal: the supply voltage is greater than or equal to the first threshold, wherein described the
One threshold value is the maximum voltage value being no more than when projection signal work；The voltage of the projection signal is less than or equal to institute
State second threshold, wherein the second threshold is the minimum voltage of projection signal necessary to guaranteeing minimum projection quality.
Preferably, the attenuation module 28, for decaying according to scheduled attenuation coefficient to the projection signal.
Preferably, the projection signal is the signal not reached also before projection driver.
Through the invention, using the supply voltage by acquisition terminal；The projection signal of projector on acquisition terminal
Voltage；Judged whether to carry out decaying output to projection signal according to the voltage of supply voltage and/or projection signal, be solved existing
Dash current in technology due to projector excessive the problem of leading to terminal closedown or resetting.And then terminal is realized to battery
The optimized control that electricity uses avoids and the unexpected decline of battery capacity is caused to lead to equipment shutdown or multiple due to projecting impact
The risk of position, improves user experience.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of projection signal's processing method according to an embodiment of the present invention；
Fig. 2 is the structural block diagram of projection signal's processing unit according to an embodiment of the present invention；
Fig. 3 is the structural block diagram one of projection signal's processing unit according to an embodiment of the present invention；
Fig. 4 is module diagram according to the preferred embodiment of the invention；
Fig. 5 is the flow chart of electric management control module according to the preferred embodiment of the invention；
Fig. 6 is the projection work flow diagram of micro projector terminal according to the preferred embodiment of the invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
A kind of projection signal's processing method is provided in the present embodiment, and Fig. 1 is projection letter according to an embodiment of the present invention
The flow chart of number processing method, as shown in Figure 1, the process includes the following steps:
Step S102, the supply voltage of acquisition terminal；
Step S104 acquires the voltage of the projection signal of the projector in the terminal；
Step S106 judges whether decay to projection signal defeated according to the voltage of supply voltage and/or projection signal
Out.
Through the above steps, the supply voltage of acquisition terminal acquires the voltage of the projection signal of the projector in the terminal,
According to the voltage of collected supply voltage and/or projection signal judge whether to carry out decaying output to projection signal.Terminal
Different power supply strategies is taken under different electricity scenes, is solved in the prior art since the dash current of projector is excessive
The problem of leading to terminal closedown or resetting, the optimized control that terminal uses battery capacity is realized, avoided due to throwing
The risk that shadow impact causes the unexpected decline of battery capacity that equipment is caused to shut down or reset.
It when meeting certain condition, needs to decay to projection signal, so that the supply voltage of terminal meets projection
The increased voltage requirement of instrument institute, the setting of condition can there are many kinds of, in a preferred embodiment, in supply voltage lower than the
In the case that the voltage of one threshold value and the projection signal is higher than second threshold, decaying output is carried out to the projection signal.In this way
The voltage of signal after decaying to projection signal would not cause to impact to the power supply of terminal, not will lead to the shutdown of terminal
Or it resets.
In projection signal there is no when the potential impact powered to terminal, the shutdown or reset of terminal not will lead to, this
When there is no need to decay to projection signal, in a preferred embodiment, supply voltage be greater than or equal to first threshold
Or the voltage of projection signal be less than or equal to second threshold when, do not decay to projection signal, directly output projection signal.
Wherein, first threshold is the maximum voltage value being no more than when projection signal's work, and second threshold is to guarantee minimum projection quality
The minimum voltage of necessary projection signal.
It should be noted that carrying out decaying output to projection signal below can illustrate to this there are many kinds of mode
Illustrate, in a preferred embodiment, decays according to scheduled attenuation coefficient to the projection signal.It is above-mentioned to projection signal
Carrying out decaying output can flexibly be handled according to the actual situation.
Preferably, projection signal is the signal not reached also before projection driver.
Additionally provide a kind of projection signal's processing unit in the present embodiment, the device is for realizing above-described embodiment and excellent
Embodiment is selected, the descriptions that have already been made will not be repeated.As used below, predetermined function may be implemented in term " module "
Software and/or hardware combination.Although device described in following embodiment is preferably realized with software, hardware,
Or the realization of the combination of software and hardware is also that may and be contemplated.
Fig. 2 is the structural block diagram of projection signal's processing unit according to an embodiment of the present invention, as shown in Fig. 2, the device packet
It includes: the first acquisition module 22, the supply voltage for acquisition terminal；Second acquisition module 24, for acquiring the throwing in the terminal
The voltage of the projection signal of shadow instrument；Judgment module 26, for being judged whether pair according to the voltage of supply voltage and/or projection signal
The projection signal carries out decaying output.
Fig. 3 is the structural block diagram one of projection signal's processing unit according to an embodiment of the present invention, as shown in figure 3, the dress
It sets further include: attenuation module 28, for being higher than second threshold lower than the voltage of first threshold and projection signal in supply voltage
In the case where, decaying output is carried out to projection signal.
Preferably, judgment module 26 is also used to, and when meeting at least one the following conditions, is not declined to the projection signal
Subtract, directly export the projection signal: supply voltage is greater than or equal to first threshold, wherein first threshold is projection signal's work
When the maximum voltage value that is no more than；The voltage of projection signal is less than or equal to second threshold, wherein second threshold is to guarantee most
The minimum voltage of projection signal necessary to low projection quality.
Preferably, attenuation module 28, for decaying according to scheduled attenuation coefficient to the projection signal.
Preferably, projection signal is the signal not reached also before projection driver.
One is provided in the preferred embodiment in conjunction with above-described embodiment for the above problem in the presence of the relevant technologies
The method for planting the state machine to electricity effective monitoring projection signal is avoided to impact.
The risk for leading to shut down or reset is reduced suddenly in order to reduce the cell voltage using projection terminal, this is preferred real
It applies example and proposes a kind of method, monitor that the voltage level of battery and digital projection signal's level state change in real time, establish a kind of prison
The state machine consumed depending on the state machine of cell voltage and a kind of Pre-Evaluation projection energy.Knot is estimated according to both state machines
Fruit, the optimized control that Lai Shixian terminal device uses battery capacity avoid causing the prominent of battery capacity due to projection impact
So risk that decline causes equipment to shut down or reset.
In the preferred embodiment, the state machine of a kind of acquisition in real time cell voltage and electric current is established.This state machine according to
Cell voltage and electric current take different power supplies under different electricity scenes to estimate the behaviour in service of current battery charge
Strategy.A kind of estimate is established according to live fluoroscopic signal simultaneously and projects electricity to the evaluation and test state machine of battery power consumption.This shape
State machine prejudges the projection electric quantity consumption that may instantaneously increase, and different decaying strategies is taken to export projection signal.It establishes
A kind of electric management control module is compared control to both state machines, and when comparision of quantity of electricity abundance, projection device is completely negative
Lotus output；When electricity is on the low side, at this time if there is instantaneous excessive projection electric quantity consumption, then projection signal can be carried out
Decaying output, the maximized output for extending projection device is using the time and equipment is avoided to shut down.
The advantage of this preferred embodiment is: 1. provide a method, when projection impact signal increases suddenly,
Avoid excessively dragging down to battery capacity, the risk for avoiding terminal closedown or restarting；2. preferred embodiment scheme
Implementation process is easy, and operability is very strong.
The implementation method of this preferred embodiment is further described in detail with reference to the accompanying drawing.
Fig. 4 is module diagram according to the preferred embodiment of the invention, as shown in figure 4, including battery voltage acquisition module
(being equivalent to above-mentioned first acquisition module 22), projection signal's voltage acquisition module (being equivalent to above-mentioned second acquisition module 24), electricity
Power monitoring module (being equivalent to above-mentioned judgment module 26), attenuation module (being equivalent to above-mentioned attenuation module 28), projection driver, throwing
Shadow equipment (is equivalent to above-mentioned projector).
The function of each module is illustrated below:
The function of battery voltage acquisition module is the real-time voltage value of the rechargeable battery in acquisition terminal.
The function of projection signal's voltage acquisition module is real-time before acquired projections signal does not also reach projection driver
Voltage value.
The function of electric management control module is that collected above two voltage signal values are passed through power monitoring mould in Fig. 5
Block is suitably handled.
The function of attenuation module is according to the result of the comparison, when being decayed, according to preset decaying system
Number carries out the decaying of projection signal；If you do not need to decaying, then directly carry out the output of projection signal.
The function of projection driver is to convert projection signal to signal source required for projection device, then passes through projection
Equipment output, is presented to the user.
Fig. 5 is the flow chart of electric management control module according to the preferred embodiment of the invention, as shown in figure 5, specific implementation step
It is rapid as follows:
Step S502, terminal inner can obtain cell voltage by battery voltage acquisition module；
Step S504, terminal inner obtain the voltage level of projection signal by projection signal's voltage acquisition module；
Step S506, judges whether cell voltage is lower than preset value V1 (relative to above-mentioned first threshold), when what is sampled
It when battery voltage level is greater than or equal to preset value V1, is then exported according to actual level, step S512 is executed, wherein in advance
If value V1 refers to the maximum voltage value being no more than when projection signal's work.
Step S508, judges whether projection signal's voltage level is lower than preset value V2 (relative to above-mentioned second threshold), when
It when the level of projection signal is less than or equal to preset value V2, is also exported according to actual level, executes step S512.
Wherein, preset value V2 refers to projection signal's voltage value necessary in order to guarantee minimum projection quality.
Step S510, when the battery voltage level sampled is lower than preset value V1, and the electricity of the projection signal got
When voltage levels are greater than preset value V2, decay at this time to projection signal, the signal after decaying is output to projection device.
A preferred embodiment is combined to be illustrated by taking a kind of terminal device with micro projector as an example below.
In the preferred embodiment, a kind of terminal device with micro projector is proposed, when opening micro projector
When switch, the image on screen can be output on wall by this equipment by micro projector, be supplied to multi-user
It is watched simultaneously.
Fig. 6 is the projection work flow diagram of micro projector terminal according to the preferred embodiment of the invention, as shown in fig. 6,
The process includes the following steps:
Step S602 is opening micro projector switch.
Step S604, open micro projector switch in the case where, when vision signal arrive when, at this time first into
Enter to electric management control module.
Step S606, electric management control module judge whether to decay to projection signal according to algorithm, when power monitoring mould
Root tuber is judged in the case where not needing decaying according to algorithm, executes step S610.When electric management control module is judged according to algorithm
If exporting the risk that may result in terminal closedown or restart according to original signal, need to decay at this time, executes step S608.
Projection signal is carried out signal decaying according to preset attenuation coefficient, then by the signal after decaying by step S608
It is output on micro projector driver, executes step S610.
Projection signal is output on micro projector driver by step S610, then executes step S612.
Step S612, driving micro projector carry out video output.
The above embodiment of the present invention and preferred embodiment, solve in traditional micro projector terminal it is that may be present
Lead to the risk shut down or restarted in projection process, greatly improves user experience.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of projection signal's processing method characterized by comprising
The supply voltage of acquisition terminal；
Acquire the voltage of the projection signal of the projector in the terminal；
According to the voltage of the supply voltage and/or the projection signal judge whether that the projection signal decay defeated
Out；
Judged whether to carry out decaying output to the projection signal according to the voltage of the supply voltage and/or the projection signal
Include: in the supply voltage lower than first threshold and in the case that the voltage of the projection signal is higher than second threshold, it is right
The projection signal carries out decaying output.
2. the method according to claim 1, wherein according to the supply voltage and/or the projection signal
Voltage judges whether to carry out decaying output to the projection signal further include:
When meeting at least one the following conditions, do not decay to the projection signal, directly export the projection signal:
The supply voltage be greater than or equal to first threshold, wherein the first threshold be the projection signal work when institute not
The maximum voltage value for being more than；
The voltage of the projection signal is less than or equal to second threshold, wherein the second threshold is to guarantee minimum projection quality
The minimum voltage of necessary projection signal.
3. method according to any one of claim 1 to 2, which is characterized in that decay to the projection signal defeated
Include: out
Decay according to scheduled attenuation coefficient to the projection signal.
4. the method according to claim 1, wherein the method also includes:
The projection signal is the signal not reached also before projection driver.
5. a kind of projection signal's processing unit characterized by comprising
First acquisition module, the supply voltage for acquisition terminal；
Second acquisition module, the voltage of the projection signal for acquiring the projector in the terminal；
Judgment module, for judging whether to believe the projection according to the voltage of the supply voltage and/or the projection signal
Number carry out decaying output；
Described device further include: attenuation module, in the supply voltage lower than first threshold and the projection signal
In the case that voltage is higher than second threshold, decaying output is carried out to the projection signal.
6. device according to claim 5, which is characterized in that the judgment module is also used to, and is meeting the following conditions extremely
In few a period of time, does not decay to the projection signal, directly exports the projection signal:
The supply voltage be greater than or equal to first threshold, wherein the first threshold be the projection signal work when institute not
The maximum voltage value for being more than；
The voltage of the projection signal is less than or equal to second threshold, wherein the second threshold is to guarantee minimum projection quality
The minimum voltage of necessary projection signal.
7. the device according to any one of claim 5 to 6, which is characterized in that the attenuation module is used for, according to predetermined
Attenuation coefficient decay to the projection signal.
8. device according to claim 5, which is characterized in that the projection signal is before not reaching projection driver also
Signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299159.8A CN105320195B (en) | 2014-06-26 | 2014-06-26 | Projection signal's processing method and processing device |
| PCT/CN2014/089352 WO2015196669A1 (en) | 2014-06-26 | 2014-10-23 | Method and apparatus for processing projection signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299159.8A CN105320195B (en) | 2014-06-26 | 2014-06-26 | Projection signal's processing method and processing device |
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| Publication Number | Publication Date |
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| CN105320195A CN105320195A (en) | 2016-02-10 |
| CN105320195B true CN105320195B (en) | 2019-07-09 |
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| CN201410299159.8A Active CN105320195B (en) | 2014-06-26 | 2014-06-26 | Projection signal's processing method and processing device |
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| CN (1) | CN105320195B (en) |
| WO (1) | WO2015196669A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176416A (en) * | 2011-12-23 | 2013-06-26 | 闻泰通讯股份有限公司 | Portable projector power supply management system |
| CN103293838A (en) * | 2012-02-22 | 2013-09-11 | 光宝电子(广州)有限公司 | Minitype projecting device and method for prolonging play time of minitype projecting device and enabling image quality to be optimal |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3506222B2 (en) * | 1999-02-16 | 2004-03-15 | シャープ株式会社 | Logic circuit and image display device |
| JP2001008130A (en) * | 1999-06-23 | 2001-01-12 | Olympus Optical Co Ltd | Controller for head mounted video display device |
| JP2004069997A (en) * | 2002-08-06 | 2004-03-04 | Seiko Epson Corp | Projector system, projector and information processor |
| CN200972563Y (en) * | 2006-09-28 | 2007-11-07 | 西安电子科技大学 | High-frequency mode power supply device for projector |
| CN101436040B (en) * | 2007-11-14 | 2011-09-14 | 中强光电股份有限公司 | Projector equipment with electricity-saving function and control circuit and method thereof |
| CN101589328A (en) * | 2007-11-20 | 2009-11-25 | 松下电器产业株式会社 | Image display device and display packing thereof, program, integrated circuit, glasses type head mounted display, automobile, binoculars and console display |
| JP5560534B2 (en) * | 2008-04-11 | 2014-07-30 | カシオ計算機株式会社 | Electronic device, electronic device control program, and threshold setting method |
| JP5196317B2 (en) * | 2008-12-02 | 2013-05-15 | 株式会社ニコン | Projection device |
| JP5268022B2 (en) * | 2008-12-02 | 2013-08-21 | 株式会社ニコン | Projection device |
-
2014
- 2014-06-26 CN CN201410299159.8A patent/CN105320195B/en active Active
- 2014-10-23 WO PCT/CN2014/089352 patent/WO2015196669A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176416A (en) * | 2011-12-23 | 2013-06-26 | 闻泰通讯股份有限公司 | Portable projector power supply management system |
| CN103293838A (en) * | 2012-02-22 | 2013-09-11 | 光宝电子(广州)有限公司 | Minitype projecting device and method for prolonging play time of minitype projecting device and enabling image quality to be optimal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105320195A (en) | 2016-02-10 |
| WO2015196669A1 (en) | 2015-12-30 |
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