CN101093416A - Computer and energy saving method - Google Patents
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- CN101093416A CN101093416A CN 200610095938 CN200610095938A CN101093416A CN 101093416 A CN101093416 A CN 101093416A CN 200610095938 CN200610095938 CN 200610095938 CN 200610095938 A CN200610095938 A CN 200610095938A CN 101093416 A CN101093416 A CN 101093416A
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Abstract
An energy-saving method of computer includes providing a simple starting-up program to only start-up unit and driving program as well as application program corresponding to selected service item in computer when one service item is selected i.e. starting up units relating to application program to be executed and closing down units not relating to said application program for realizing energy-saving of computer.
Description
[technical field]
The present invention relates to a kind of computing machine and power-economizing method thereof, the computing machine and the power-economizing method thereof of particularly a kind of power saving ground executive utility.
[background technology]
Along with popularizing of computing machine, everybody is also more and more higher to the dependency degree of computing machine.And the related application of computing machine also no longer is confined to traditional text-processing and programming.No matter be computer vendors or user, the trend that computing machine is developed into home media center (media center) is arranged all.More and more people use a computer and see TV, listen to the radio programme, play games, surf the web, use the networking telephone, send and receive e-mail, dial and put the music on and activity such as film.
But with regard to prior art, carry out above-mentioned activity with computing machine, must be earlier with computer booting and by the time operating system (Microsoft Windows series, Linux etc.) be written into finish after, can begin to carry out, its subject matter is to be written into operating system need wait for the long time, and computer system can consume more electric power, in addition, no matter whether the peripherals on the computing machine used, and all can expend electric power.
In recent years, more existing technology, attempt overcomes aforesaid problem, but most technology can only reach and makes computing machine that single service can be provided under the state of no operating system.For example, TaiWan, China invent I221242 number with No. 582590 patent case of utility model, respectively by the change of hardware circuit, make the computing machine can be in playing back music under the off-mode.For example TaiWan, China is invented No. 504641 and the 571200th patent case again, all is the push button signalling that triggers according to the user, judges that the user will normally use a computer, and still only wants to come playing back music with computing machine.If the latter then makes computing machine playing back music under the state that is not written into operating system.In addition, for example No. the 590283rd, TaiWan, China utility model and No. 579009 patent case, it further discloses and makes the computing machine can be at off-mode or do not load under the state of the system of work and play dynamic image, but its needed be that more the complicated hardware circuit could be realized this function.
In addition, TaiWan, China is invented I251779 patent case and is disclosed a multimedia operations system, it has simplified many with respect to the general operation system, and can make a multimedia equipment and the corresponding application program can normal operation under the state that does not have the general operation system.Yet the problem of this patent case is, just needs a kind of different multimedia operations system of design at each multimedia equipment, for example, when wishing playing back music, film and photo, just must corresponding design three cover multimedia operations system, quite troubles.
Moreover, aforementioned multimedia operations system executes start selftest (POST) at system bios just to be activated afterwards, this is illustrated in during the aforementioned multimedia operations System Operation, just not corresponding multimedia equipment is a power supply state, other incoherent peripherals must cause waste of electric energy also all at power supply state.
In addition, invent in the I245982 patent case at TaiWan, China, disclose and one second similar operating system of I251779 patent case again, described second operating system is carried out at least one application program in the entertainment software set on demand.Described entertainment software set comprises DVD play-back application, TV application program, digital device application program, remote control application program, SoundRec application program and music application program.Yet, in the patent specification of I245982 patent case, not do not disclose or describe in detail and how to allow a user select to wish the application program of carrying out.The more important thing is that I245982 number and above-mentioned each patent case do not have to disclose yet or describe in detail in the middle of the equipment of how realizing in the computing machine, only start the equipment relevant with selected application program, and other equipment that has nothing to do are closed.
[summary of the invention]
Fundamental purpose of the present invention is to propose a kind of computing machine and power-economizing method thereof, it not only makes a computing machine provide a plurality of service items to select for a user under a no operation system state, described computing machine is only carried out and the corresponding application program of selected service item, and the equipment in the described computing machine, have only the equipment relevant to be activated with the application program that is performed, other irrelevant equipment then is closed, and then make described computing machine under the state of very power saving, the service that conforms to selected service item is provided.
For realizing aforementioned purpose, the invention provides a kind of computing machine power-economizing method, pre-defined multinomial service item, and define each service item when selected, the equipment that described computing machine should start, driver and application program then, provide a simple start program, when selecting a service item selected, start in the described computing machine and selected service item corresponding equipment, driver and application program.
The present invention also provides a kind of computing machine, and it comprises a core processing equipment, a plurality of peripherals, a system power supply and an on-off circuit.Described core processing equipment comprises that further a CPU, a chipset, a primary memory and store the BIOS chip of a system bios.Described peripherals is connected with described chipset, and wherein a peripherals stores an operating system, an energy-saving service systems, a plurality of driver and a plurality of application program.Described system power supply provides described core processing equipment and the needed power supply of peripherals.Described on-off circuit is in order to control the electric power supply of described system power supply to described peripherals.Wherein, described system bios is after described system power supply normal power supply, described energy-saving service systems is loaded on described primary memory, described energy-saving service systems can provide multinomial service item to select for the user, and when a service item is selected therein, start driver and the application program corresponding with selected service item, and the power supply of closing the peripherals that has nothing to do with selected service item via described on-off circuit.
Equipment, driver and application program that computing machine of the present invention and power-economizing method thereof can need optionally start the corresponding service item of choosing in the computing machine according to user's setting and actual use, and then realize that computer system is energy-conservation.
[description of drawings]
Fig. 1 is the process flow diagram of computing machine power-economizing method of the present invention;
Fig. 2 shows a definition list, cooperates the step relevant with definition list in the explanation computing machine power-economizing method of the present invention;
Fig. 3 to Fig. 5 is the process flow diagram of the embodiment of simple start program of the present invention; And
Fig. 6 is the structured flowchart of computing machine of the present invention.
[embodiment]
See also Fig. 1, show a kind of power-economizing method of computing machine, it comprises:
The pre-defined multinomial service item of step a).For example, playing back music service, vocal accompaniment service, the service of surfing the web, instant messaging service, electronic game service, movie service, browse that digital photo service, receipts/send e-mails are served etc.
Step b) defines each service item when selected, the equipment that should start in this computing machine, driver and application program.Shown definition list illustration meaning the definition result that passes the imperial examinations at the provincial level in Fig. 2 through this step, what need particularly point out is, this definition list is the definition result at a computing machine, and this computing machine comprises a core processing equipment, a peripherals group, a system bios and an operating system at least.Wherein, this core processing equipment comprises a CPU, a chipset, a BIOS chip and a primary memory at least.This peripherals group comprises two display cards, two network cards, two IDE hard disks, diskette, four SATA hard disks, eight USB connectors, two sequence transmission mouths, transmission mouthful side by side, PS/2 keyboard and a PS/2 mouse.In addition, this definition list only bar is listed the part service item, but in fact can optionally define other service item, or the more service project.
Step c) provides a simple start program, when wherein a service item is selected, only starts this computing machine and selected service item corresponding equipment, driver and application program.With definition list shown in Figure 2 is example, when " playing back music service " in this definition list when this service item is selected, equipment in this computing machine, having only with " playing back music service " has relevant equipment just need start its power supply, for example, the PS/2 keyboard in this core processing equipment and this definition list, PS/2 mouse, an IDE hard disk, first display card, sound card and a USB mouth.As for other irrelevant equipment, for example, the power supply of the 2nd IDE hard disk, second display card, first network card, second network card, second to the eight USB mouth, floppy drive, first to two serial port, port arranged side by side and first to fourth SATA hard disk need not start, or says and should close.Meanwhile, these have been activated the driver of the equipment of power supply, also should be activated, and or rather, exactly these drivers are loaded on the primary memory in this core processing equipment.Then, start the multimedia playing program of corresponding " playing back music service ", in order to produce the service that conforms to " playing back music service ".The user of this expression computing machine can see through the man-machine interface that this multimedia playing program provided this moment, orders about the song that this computing machine is play appointment.
Can recognize from above-mentioned explanation, this computing machine is when providing with selected service item, operating system in this computing machine is not loaded on the primary memory of this computing machine, and this will accelerate the speed that this computing machine provides service, can save some electric power simultaneously yet.The more important thing is that this simple start program only starts in this computing machine the power supply with selected service item corresponding equipment, the power supply of the equipment that other is irrelevant all is not activated, and all is closed in other words, and this will further save more electric power.This feature and the advantage that is caused thereof are unexistent in the prior art.
See also Fig. 3, show first embodiment of simple start program in the aforementioned c step, its process is as follows:
Step 11) starts the system bios in this computing machine.When the power supply of this computing machine via a power switch or a replacement shortcut and after being opened, will produce a starting-up signal, in order to start this system bios.This is equipment such as present personal computer, mobile computer, PDA(Personal Digital Assistant), mobile phone, the process that all can carry out when start.
All after the normal power supply, this system bios provides a normal service pattern and an energy-conservation service mode to select one of them for the user to the equipment of step 12) in this computing machine.For example, after this system bios is finished the operation of start selftest (POST), equipment in this computing machine all can be in the normal power supply state, this moment, this system bios can be via the mode of shortcut triggering, Alt key+del key for example, perhaps automatically jump existing mode, on the display of this computing machine, show an inquiry picture, in order to require the computing machine user select aforementioned normal service pattern and energy-conservation service mode one of them.
Step 13) is when selecting the normal service pattern, and this system bios starts the operating system in the computing machine, or rather, is exactly with for example operating systems such as Windows XP, Linux, is loaded on the primary memory in this core processing equipment.
Step 14) when selecting energy-conservation service mode, Break-Up System BIOS so that the operating system in this computing machine wouldn't start, promptly computing machine comes the load operation system without ancillary cost time and electric power.
Step 15) provides multinomial service item to select to the user of described computing machine, when selecting wherein a service item, carries out program subsequently, i.e. step 16.
Step 16) starts driver corresponding in this computing machine with selected service item.From definition list shown in Figure 2 as can be known, if select be wherein " surfing the web service " time, driver that should corresponding startup be exactly mouse/keyboard driver, IDE hard drive program, display adapter driver program, sound card driver and network card driver.Can know by inference according to this, when selecting other service item, should the corresponding driver that starts which equipment, these equipment typically refer to the peripherals in the aforementioned computing machine.
Step 17) starts in this computing machine and selected service item corresponding application program, in order to the service that conforms to selected service item to be provided.As can be known, if when selecting wherein " surfing the web service ", driver that should corresponding startup be exactly a web browser from definition list shown in Figure 2.Can know by inference according to this, when selecting other service item, should the corresponding application program that starts which equipment.Different with general application program is more to simplify than the general application program that needs the operating system support usually in the application program of aforementioned definitions table.For example, web browser in this definition list can utilize VB.NET or other program language to write, and make its function be simplified to the function of having only browsing page, similarly be in the IE browser of Microsoft printing, I favorite, search, instrument, inspect, function such as explanation just can omit.For example at receiving/send e-mails this service item, can correspondingly design a simple and easy electronic mail system again, it only has several simple functions such as writing, receive and send Email.Generally speaking, these application programs of simplifying not only can be carried out under the environment of operating system not having, and only can take seldom storage area and memory headroom.
Step 18) will close fully with the power supply of the irrelevant equipment of selected service item in this computing machine.Through this step, originally in abovementioned steps 12, be in the equipment of normal power supply state, irrelevant and be interrupted power supply with some because with selected service item.Still use the example of choosing " playing back music service " this service item among the above-mentioned steps c, the 2nd IDE hard disk in this definition list, second video card, first network interface card, second network interface card, second to the eight USB mouth, floppy disk, first to two serial port, be closed among all said step c of power supply of port and first to fourth SATA hard disk side by side, promptly when the service that this computing machine provides with this service item is consistent, have only the power supply of some equipment relevant with " playing back music service " to open in this computing machine, the power supply of the equipment that other is irrelevant is all closed.Thereby can recognize, when this computing machine is carried out the pairing application program of service item in this definition list, in terms of existing technologies, only use electric power seldom.
In above-mentioned simple start program, can before step 12, add one again and check step, whether be enough to support later step 14 carrying out in order to check the equipment in this computing machine to step 18.If should check that the result of step was " very ", just carry out step 12 subsequently, if should check that the result of step is " vacation ", then jumped directly to step 13.
See also Fig. 4, second embodiment that shows the simple start program in this c step, compare with example shown in Figure 3, there are two place's differences, this second embodiment of the first has only lacked aforesaid step 12 and 13, it two is that this system bios is not to start via a power switch or a replacement shortcut, but starts via another special switch.Because this special switch is to be used for starting this computing machine specially and to impel entering above-mentioned energy-conservation service mode, therefore, can omit this step 12 and 13.Generally speaking, by the simple start program shown in Fig. 4, this computing machine can provide the service that is consistent with service item in this definition list quickly.
At the step 15 among above-mentioned two embodiment, can further will there be the selecteed situation of service item to list processing in.The mode of handling has three kinds: (1) when not selecting service item, this system bios continues running, and as starting the operating system in this computing machine as the step 13; (2) when not selecting service item, this calculates auto-shut-off; (3) provide preceding two kinds of processing modes to select simultaneously for the user.
See also Fig. 5, show the 3rd embodiment of the simple start program in this c step, in this example, provide a plurality of shortcuts to select earlier, just like shown in the step 10 to a user.Owing to represent wherein service item of selection when touching wherein a shortcut, therefore, in this embodiment, do not need the step 15 in Fig. 3 and 4, but when a shortcut is touched therein, start the system bios in this computing machine immediately, and suspend this system bios, just like above-mentioned step 11 and 14.Subsequently, carry out above-mentioned step 16 again to 18.Compare with the embodiment shown in Fig. 4, simple start program shown in Figure 5 can make computing machine that the service that is consistent with service item in this definition list is provided quickly.
Please consult the definition list of Fig. 2 again, wherein point out among above-mentioned each embodiment can further to define when choosing each service item, operating mode that should the corresponding core processing equipment that starts in this computing machine about the part of step b.With respect to aforesaid definition, the simple start program in the various embodiments described above can further be ordered about core processing equipment corresponding with selected service item in this computing machine and operate under corresponding operating mode after step 18.With CPU in this core processing equipment and radiator fan thereof is example, and its operating mode can be divided into operating mode, working at high speed pattern, middling speed operating mode, low speed operating mode and operation stop mode at full speed in regular turn according to the height of power consumption degree.Therefore, when " playing back music service " in selecting definition list, promptly correspondence is ordered about described core processing equipment and is operated under the low speed operating mode; In elected when " vocal accompaniment service ", promptly correspondence is ordered about this core processing equipment and operated under the working at high speed pattern: in the time of should " service of surfing the web " in elected again, promptly correspondence be ordered about this core processing equipment and is operated under the middling speed operating mode.Generally speaking, see through such control, will make this computing machine that service more power saving is provided.
At the step 17 in above-mentioned each example, situation was listed processing in after the application program that can further this be activated finished.The mode of handling has four kinds: (1) when this application program that is activated end, this system bios continues running, in order to start the operating system in this computing machine; (2) when this application program that is activated finished, this calculated auto-shut-off; (3) when this application program that is activated finishes, return step 15, select once more to this user in order to multinomial service item to be provided; (4) providing first three to plant processing mode simultaneously selects for the user.
See also Fig. 6, point out that a computing machine comprises a core processing equipment (2), a plurality of peripherals (3), a system power supply (4) and an on-off circuit (5), wherein:
This core processing equipment (2) comprises a CPU (20), a chipset (21), a primary memory (22) and a BIOS chip (23) at least, and wherein this BIOS chip (23) is to store a system bios (230).These peripherals (3) are connected with this chipset (21), an and peripherals (3) wherein, for example the Nonvolatile memory of hard disk, adapter pattern or the Storage Media of other pattern store an operating system (30), an energy-saving service systems (31), a plurality of driver (32) and a plurality of application program (33).
This system power supply (4) provides this core processing equipment (2) and the needed power supply of these peripherals (3).
This on-off circuit (5) has a plurality of solid state switches, in order to control the electric power supply of this system power supply (4) to these peripherals (3).
Wherein, this system bios (23) can be after this system power supply (4) normal power supply, optionally one of them is loaded on this primary memory (22) with this operating system (30) and energy-saving service systems (31), this energy-saving service systems (32) can provide multinomial service item to select for a user, and when choosing wherein a service item, start driver (32) corresponding and application program (33), then close the power supply of the peripherals (3) that has nothing to do with selected service item via this on-off circuit (5) with selected service item.And, please refer to definition list and the related description of Fig. 2 about the corresponding relation between these service items and peripherals (3), driver (32) and the application program (33), hold and do not give unnecessary details.Generally speaking, by this on-off circuit (5) and energy-saving service systems (32), can make this computing machine when carrying out with selected service item corresponding application program (33), the power supply of automatically that some are irrelevant peripherals (3) is closed, and then saves electric power.This point is not see in the prior art equally.
Please consult Fig. 6 again, point out that wherein this computing machine also comprises a plurality of shortcuts (6) that are connected with this chipset (21), when a shortcut (6) wherein when being pressed, a service item is selected in i.e. representative, and corresponding this system bios (23) that starts, and this system bios (23) is after this system power supply (4) normal power supply, this energy-saving service systems (32) is loaded on this primary memory (22), this energy-saving service systems (32) can start and corresponding driver of selected service item (32) and application program (33), and the power supply of closing the peripherals (3) that has nothing to do with selected service item via this on-off circuit (5).
In addition, the energy-saving service systems in this computing machine (32) can further make this CPU (20) operate under corresponding operating mode when choosing wherein a service item.This partly can hold and not give unnecessary details with reference to definition list and the related description of figure 2.
Claims (13)
1, a kind of computing machine power-economizing method is characterized in that, described computing machine power-economizing method comprises:
Pre-defined multinomial service item;
Define each service item when selected, the equipment that described computing machine should start, driver and application program; And
One simple start program is provided, when selecting a service item, starts in the described computing machine and service item corresponding equipment, driver and the application program chosen.
2, computing machine power-economizing method according to claim 1 is characterized in that, described simple start program further comprises:
Start the system bios in the described computing machine;
The equipment of described system bios in described computing machine all after the normal power supply, provides a normal service pattern and an energy-conservation service mode selective;
When selecting normal clothes pattern, described system bios starts the operating system in the described computing machine;
When selecting energy-conservation service mode, suspend described system bios;
Provide multinomial service item to select for the user;
When selecting wherein a service item, carry out following program:
Start driver corresponding in the described computing machine with selected service item;
Start in the described computing machine and selected service item corresponding application program, and then the service that conforms to selected service item is provided; And
Close in the described computing machine power supply with selected service item unrelated equipment.
3, computing machine power-economizing method according to claim 1 is characterized in that, described simple start program further comprises:
Start the system bios in the described computing machine;
Equipment in described computing machine all after the normal power supply, suspends described system bios;
Provide multinomial service item to select for the user;
When selecting wherein a service item, carry out following program:
Start driver corresponding in the described computing machine with selected service item;
Start in the described computing machine and selected service item corresponding application program, in order to the service that conforms to selected service item to be provided; And
Close in the described computing machine power supply with selected service item unrelated equipment.
4, computing machine power-economizing method according to claim 1 is characterized in that, this simple start program comprises:
Provide a plurality of shortcuts to select, when wherein a shortcut is touched, represent to select wherein service item for the user;
When one of them shortcut is touched, start the system bios in the described computing machine;
Equipment in described computing machine all after the normal power supply, suspends described system bios;
Start in the described computing machine and the corresponding driver of selected shortcut;
Start in the described computing machine and the corresponding application program of selected service item, in order to the service that conforms to selected service item to be provided; And
With in the described computing machine with the power-off of the irrelevant equipment of selected service item.
5, according to claim 1 to 4 each described computing machine power-economizing method wherein, further comprise when each service item of definition is selected, the operating mode of the core processing equipment that should start in the described computing machine, and described simple start program comprises that further ordering about core processing equipment corresponding with selected service item in the described computing machine operates under corresponding operating mode.
According to claim 2 to 4 each described computing machine power-economizing method wherein, it is characterized in that 6, described simple start program comprises that also when not selecting service item, described system bios continues running, to start the operating system in the described computing machine.
According to claim 2 to 4 each described computing machine power-economizing method wherein, it is characterized in that 7, described simple start program also comprises, when not selecting service item, described calculating auto-shut-off.
8, according to claim 24 each described computing machine power-economizing method wherein, it is characterized in that described simple start program also comprises, when the described application program end of run that is activated, described system bios continues running, to start the operating system in the described computing machine.
According to claim 2 to 4 each described computing machine power-economizing method wherein, it is characterized in that 9, described simple start program also comprises, when the described application program end of run that is activated, described calculating auto-shut-off.
10, according to claim 2 to 4 each described computing machine power-economizing method wherein, it is characterized in that, described simple start program more comprises, when the described application program end of run that is activated, returns the described step that provides multinomial service item to select for the user.
11, a kind of computing machine is characterized in that, described computing machine comprises at least:
One core processing device comprises a CPU, a chipset, a primary memory and a BIOS chip, and wherein this BIOS chip stores a system bios;
A plurality of peripherals are connected with described chipset, and wherein a peripherals stores an operating system, an energy-saving service systems, a plurality of driver and a plurality of application program;
One system power supply provides described core processing equipment and the required power supply of more described peripherals; And
One on-off circuit has a plurality of solid state switches, in order to control the electric power supply of described system power supply to described peripherals;
Wherein, described system bios is after described system power supply normal power supply, described energy-saving service systems is written into described primary memory, described energy-saving service systems can provide multinomial service item to select for the user, and when a service item is selected therein, start driver and the application program corresponding with selected service item, and the power supply of closing the peripherals that has nothing to do with selected service item by described on-off circuit.
12, computing machine according to claim 11 is characterized in that, described energy-saving service systems further makes described when a service item is selected therein
CPU operates under corresponding operating mode.
13, computing machine according to claim 11, it is characterized in that described computing machine also comprises the shortcut that a plurality of and described chipset is connected, with when wherein a shortcut is pressed, expression is chosen and is represented a service item, and the described system bios of corresponding startup;
Wherein, this system bios is after described system power supply normal power supply, described energy-saving service systems is loaded on described primary memory, described energy-saving service systems can start driver corresponding with selected service item and application program, and the power supply of closing the periphery that has nothing to do with selected service item of selecting via described on-off circuit.
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| CN 200610095938 CN101093416A (en) | 2006-06-23 | 2006-06-23 | Computer and energy saving method |
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| CN 200610095938 CN101093416A (en) | 2006-06-23 | 2006-06-23 | Computer and energy saving method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681897A (en) * | 2011-03-18 | 2012-09-19 | 任少华 | Multimode computer |
| CN102868809A (en) * | 2012-08-30 | 2013-01-09 | 广东欧珀移动通信有限公司 | Mobile phone music playing method and mobile phone |
| CN102053685B (en) * | 2009-10-28 | 2013-04-03 | 纬创资通股份有限公司 | Portable electronic device and power management method |
| CN105094866A (en) * | 2014-05-12 | 2015-11-25 | 联想(北京)有限公司 | Application program boot method and electronic device |
| CN105116991A (en) * | 2015-08-26 | 2015-12-02 | 广东欧珀移动通信有限公司 | Terminal power saving method and apparatus |
| CN106155638A (en) * | 2014-09-08 | 2016-11-23 | 广达电脑股份有限公司 | In configuration computer, basic input output system usefulness sets the system and method for shelves |
| CN110825211A (en) * | 2019-09-25 | 2020-02-21 | 徐州市奥仕捷电子机箱有限公司 | Energy-saving device suitable for computer case |
-
2006
- 2006-06-23 CN CN 200610095938 patent/CN101093416A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053685B (en) * | 2009-10-28 | 2013-04-03 | 纬创资通股份有限公司 | Portable electronic device and power management method |
| CN102681897A (en) * | 2011-03-18 | 2012-09-19 | 任少华 | Multimode computer |
| CN102868809A (en) * | 2012-08-30 | 2013-01-09 | 广东欧珀移动通信有限公司 | Mobile phone music playing method and mobile phone |
| CN105094866A (en) * | 2014-05-12 | 2015-11-25 | 联想(北京)有限公司 | Application program boot method and electronic device |
| CN106155638A (en) * | 2014-09-08 | 2016-11-23 | 广达电脑股份有限公司 | In configuration computer, basic input output system usefulness sets the system and method for shelves |
| CN105116991A (en) * | 2015-08-26 | 2015-12-02 | 广东欧珀移动通信有限公司 | Terminal power saving method and apparatus |
| CN110825211A (en) * | 2019-09-25 | 2020-02-21 | 徐州市奥仕捷电子机箱有限公司 | Energy-saving device suitable for computer case |
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