CN101976111B - Computer system and power management method - Google Patents
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- CN101976111B CN101976111B CN 201010516796 CN201010516796A CN101976111B CN 101976111 B CN101976111 B CN 101976111B CN 201010516796 CN201010516796 CN 201010516796 CN 201010516796 A CN201010516796 A CN 201010516796A CN 101976111 B CN101976111 B CN 101976111B
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Abstract
The invention relates to a computer system and a power management method. The computer system comprises a first part and a second part, wherein the first part comprises an image processing unit, a storage space and a display while the second part comprises a memory for storing image data. When the computer system is in an image reading mode, the storage space stores the image data and the computer system controls the second to switch from a first power management mode to a second power management mode with less power consumption for operation. And the first part is maintained to operate in the first power management mode for the image processing unit to display the image through the display on the basis of the image data stored in the storage space.
Description
Technical field
The present invention is the technical field relevant for computer system, and particularly relevant for computer system and the method for managing power supply thereof that can when showing image, save electric energy.
Background technology
Development along with science and technology, present people have gradually adopted electrophoretic display device (EPD) (electrophoresis display, EPD), or at the portable computer system ocr software is installed and is come reading electronic book (E-book), the multiple different book contents that so not only is easy to carry is also removed the waste of paper from.
Yet when utilizing portable computer system to show the content of e-book, whole system all or operate under the powder source management mode S0 of power consumption thereby can cause loss on the electric energy as usual operation.Described powder source management mode S0 is by advanced configuration and power interface (Advanced Configuration and Power Interface, ACPI) the defined power management standard of agreement, and under this powder source management mode S0, whole system is to be in a normal operating conditions.
As shown in the above description, the user often, just is necessary for the portable computer system and charges after several hours at reading electronic book, thereby causes the inconvenience in the use.
Summary of the invention
Purpose of the present invention is to provide a kind of computer system exactly, and it can save electric energy when showing image.
Another object of the present invention is to provide a kind of method for managing power supply exactly, and it is applicable to aforesaid computer system.
The present invention proposes a kind of computer system.This computer system definition has image read mode, the first powder source management mode and second source management mode, and the power that the power that consumes when wherein operating on the second source management mode consumes when operating on the first powder source management mode is for few.This computer system includes: first includes Graphics Processing Unit, access space and display; And second portion, include storer, and this memory storage there is view data.When this computer system is in image read mode, access space stores above-mentioned view data, and above-mentioned second portion can change into and operates in the second source management mode by operating in the first powder source management mode, above-mentioned first then keeps and operates in the first powder source management mode, so that Graphics Processing Unit utilizes display to show image according to being stored in the view data of access space.
The present invention also proposes a kind of method for managing power supply, and it is applicable to a computer system.Described computer system definition has image read mode, the first powder source management mode and second source management mode.The power that the power that consumes when wherein operating on the second source management mode consumes when operating on the first powder source management mode is for few.Described computer system includes first and second portion, and wherein first includes again Graphics Processing Unit, access space and display, and second portion includes again storer, and this memory storage has view data.Described method comprises the following steps: to carry out in response to computer system enters image read mode the unloading operation, in order to the view data unloading in the storer to access space; After finishing in response to unloading operation, second portion is changed into and operates in the second source management mode by operating in the first powder source management mode, and first is kept operate in the first powder source management mode; And make Graphics Processing Unit utilize display to show image according to being stored in the view data of access space.
The present invention solves the embodiment of foregoing problems, is computer system is divided into first and second portion.Wherein first is the member that must apply to when showing image, includes Graphics Processing Unit and display, and second portion then is the member that system all can apply to when general running, include storer, and this memory storage has view data.Under such basis, when computer system enters image read mode, in the access space that just can first the view data unloading in the storer to Graphics Processing Unit itself be had, and after the unloading operation is finished, just can make above-mentioned second portion change into and operate in the less second source management mode of consumed power by operating in the first powder source management mode, and above-mentioned first is kept operate in the first powder source management mode, so that Graphics Processing Unit is according to being stored in the view data of access space and utilizing display to show image.So, computer system just can be saved electric energy when showing image.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is the block schematic diagram according to the computer system of a preferred embodiment of the present invention.
Fig. 2 is the block schematic diagram according to the computer system of another preferred embodiment of the present invention.
Fig. 3 is the process flow diagram according to the method for managing power supply of a preferred embodiment of the present invention.
[main element label declaration]
100,200: computer system
110,210: first
112,212: Graphics Processing Unit
114,220: access space
116,214: display
118,216: control module
130,230: second portion
132,232: CPU (central processing unit)
134,234: chipset
135,235: north bridge chips
136,242: South Bridge chip
138,244: storer
140,246: view data
218,240: storage unit
236,238: the storage unit controller
S302～S306: step
Embodiment
Fig. 1 is the block schematic diagram according to the computer system of a preferred embodiment of the present invention.Please refer to Fig. 1, these computer system 100 definition have image read mode, the first powder source management mode and second source management mode.This computer system 100 for example is portable computer system, and the power that its power that consumes when operating on the second source management mode consumes when operating on the first powder source management mode is for few.Described the first powder source management mode can be considered a duty, it for example is powder source management mode S0 (being so-called S0 pattern), and described second source management mode can be considered a power down mode, and it for example is powder source management mode S3 (being so-called S3 pattern).In addition, be all advanced configuration and power interface (Advanced Configuration and Power Interface, ACPI) the defined power management standard of agreement in " powder source management mode " that reaches described herein.And must illustrate first be, when the mentioned computer system of each embodiment of the present invention is in " image read mode " defined herein, the member relevant with image display operations in these computer systems is to be in the first powder source management mode (duty) so, and all the other incoherent members are to be in second source management mode (power down mode), and it is described in detail as follows.
Above-mentioned second portion 130 includes CPU (central processing unit) 132, chipset (Chipset) 134 and storer 138.In the present embodiment, chipset 134 is comprised of north bridge chips 135 and South Bridge chip 136.And in other embodiments, chipset 134 also can be the one chip that has simultaneously the function of north bridge chips and South Bridge chip.And as shown in Figure 1, north bridge chips 135 is electrically connected CPU (central processing unit) 132 and Graphics Processing Unit 112, and South Bridge chip 136 is electrically connected north bridge chips 134, control module 118 and storer 138.In this example, storer 138 for example is: nonvolatile memory, and it disposes (namely having) storage area, and with store images data 140, and described view data 140 for example is the view data of e-book or photo etc.It is noted that the power supply state of above-mentioned second portion 130 is to change along with powder source management mode.Therefore, when computer system 100 entered image read mode, above-mentioned second portion 130 was to enter the second source management mode by the first powder source management mode, namely enters power down mode by duty.Because the first 110 of computer system 100 has different powder source management modes from second portion 130 under image read mode, so on the implementation, the member in the above-mentioned first 110 can be received respectively different voltage planes from the member in the second portion 130.
It is worth mentioning that the view data that above-mentioned access space 114 stored wishs show can be to deposit in by the unloading operation, is described in detail as follows.In general, the view data that wish shows can be to deposit in first in the storer 138, when computer system 100 is wanted to enter image read mode so that when allowing the user can read these data, computer system 100 just can be prior under the first powder source management mode, with view data 140 unloadings in the storer 138 to the access space 114 of Graphics Processing Unit 112.And after the unloading operation is finished, second portion 130 in the computer system 100 will change into and operate in the second source management mode by operating in the first powder source management mode, first 110 then keeps and operates in the first powder source management mode, so that Graphics Processing Unit 112 utilizes display 116 to show image according to being stored in the view data of access space 114, read for the user.So, computer system 100 just can be saved electric energy when showing image.In addition, although in the above description, computer system 100 just enters image read mode immediately after the unloading operation is finished, and right computer system of the present invention is not limited to this mode of operation.In fact, computer system of the present invention also can be carried out the unloading operation in advance under the normal operation state, and continues access space 114 power supplies, and person to be used selects to enter image read mode again in the time of need to carrying out the reading of view data.
By above explanation as can be known, as follows about the power supply state of computer system 100 of the present invention: in one embodiment, whole computer system 100 is in the first powder source management mode fully, and it for example is a duty.In another embodiment, whole computer system 100 is in the second source management mode fully, and it for example is a power down mode.In another embodiment, when computer system 100 entered image read mode, then the first 110 of this computer system 100 maintained the first powder source management mode, and the second portion 130 of computer system 100 is in the second source management mode.
In addition, in computer system 100, control module 118 is to Graphics Processing Unit 112, so that 112 pairs of displays of Graphics Processing Unit, 116 shown images carry out respective operations in order to the transfer control order.So-called respective operations comprises to be the shown image of crawling display device 116 or to replace the shown image of display 116.For instance, but aforesaid control command control chart shape processing unit 112 is replaced (function of namely carrying out lower one page) with the next image of present image, or replaces (function of namely carrying out page up) with a upper image of present image.It is worth mentioning that control module 118 can be by internal integrated circuit (Inter-Integrated Circuit, I
2C) serial communication bus (not illustrating), or by at least one universal input output (General Purpose Input/Output, GPIO) pin position (not illustrating) and be electrically connected Graphics Processing Unit 112 is in order to carry out the transmission of control command.
In addition, computer system 100 also can further be loaded with print driver (print driver) again, converts view data in order to utilize this print driver will want typescripts, and wherein this printing step is to carry out under the first powder source management mode.Thus, even if computer system 100 is not supported the read operation of the file of some form (format), utilizing print driver to this class file execution printing function, and so that print driver converts the content of this class file to view data, and carry out after the unloading, the user still can utilize computer system 100 to carry out the reading of this class file.
Fig. 2 is the block schematic diagram according to the computer system of another preferred embodiment of the present invention.Please refer to Fig. 2, this computer system 200 also defines image read mode, the first powder source management mode and second source management mode.This computer system 200 for example is portable computer system, and the power that the power that consumes when operating on the second source management mode of this computer system 200 consumes when operating on the first powder source management mode is for few.Be same as the previously described embodiments about the first powder source management mode, second source management mode, image read mode, no longer repeat in this.
The difference of this computer system 200 and computer system 100 is computer system 200 except having the old storage unit of system 240, has also increased storage unit 218 newly.Described storage unit 218,240 for example is dynamic RAM (DRAM).And this storage unit 218 disposes the access space 220 of (namely having) and will play the part of role as the access space 114 in the computer system 100 (detailed aftermentioned).In addition, the chipset 234 that computer system 200 adopts also has two storage unit controllers, and with difference control store unit 218 and 240, and these two storage unit controllers indicate with 236 and 238 respectively.
In this example, computer system 200 also is divided into two parts, wherein first 210 is the member that must apply to when showing image, and it includes first's (not indicating) of Graphics Processing Unit 212, display 214, control module 216, storage unit 218 and chipset 234.The first of described chipset 234 has storage unit controller 236, and this storage unit controller 236 is electrically connected storage unit 218.As described in a same embodiment, when computer system 200 entered image read mode, these members in the above-mentioned first 210 were the continued power state, thereby can continue running.On the implementation, these members in the above-mentioned first 210 can be electrically connected to same voltage plane.In addition, the second portion 230 of computer system 200 includes second portion (not indicating), the storage unit 240 and storer 244 of CPU (central processing unit) 232, chipset 234.The second portion of described chipset 234 has storage unit controller 238, and this storage unit controller 238 is electrically connected storage unit 240.In the present embodiment, chipset 234 is comprised of north bridge chips 235 and South Bridge chip 242, and above-mentioned storage unit controller 236 and 238 all is arranged in the north bridge chips 235.And in other embodiments, chipset 234 also can be the one chip that has simultaneously the function of north bridge chips and South Bridge chip.As the described mode of operation of a same embodiment, when computer system 200 enters image read mode, the second portion 230 of computer system 200 enters the second source management mode by the first powder source management mode, namely enters power down mode by duty.Because the first 210 of computer system 200 has different powder source management modes from second portion 230 under image read mode, so on the implementation, the member in the first 210 of computer system 200 can be received respectively different voltage planes from the member in the second portion 230.Electrical connection about these members has represented in Fig. 2, just repeats no more at this.In addition, above-mentioned storer 244 for example is: nonvolatile memory, and it also disposes (namely having) storage area, and with store images data 246, and described view data 246 for example is the view data of e-book or photo etc.
It is worth mentioning that the view data that above-mentioned access space 220 stored wishs show can also be to deposit in by the unloading operation, is described in detail as follows.In general, the view data that wish shows can be to deposit in first in the storer 244, when computer system 200 is wanted to enter image read mode so that when allowing the user can read these data, computer system 200 just can be prior under the first powder source management mode, with view data 246 unloadings in the storer 244 to the access space 220 of newly-increased storage unit 218.And after the unloading operation is finished, the second portion 230 of computer system 200 just can change into and operates in the second source management mode by operating in the first powder source management mode, the first 210 of computer system 200 then keeps and operates in the first powder source management mode, so that Graphics Processing Unit 212 utilizes display 214 to show image according to being stored in the view data of access space 220.So, computer system 200 just also can be saved electric energy when showing image.
In addition, in computer system 200, control module 216 also in order to the transfer control order to Graphics Processing Unit 212, so that 212 pairs of displays of Graphics Processing Unit, 214 shown images carry out respective operations.So-called respective operations also comprises to be the shown image of crawling display device 214 or to replace the shown image of display 214, just like cited in the aforementioned embodiment operation.In addition, control module 216 can also be by internal integrated circuit (Inter-Integrated Circuit, I
2C) serial communication bus (not illustrating), or by at least one universal input output (General Purpose Input/Output, GPIO) pin position (not illustrating) and be electrically connected Graphics Processing Unit 212 is in order to carry out the transmission of control command.And computer system 200 also can further be loaded with print driver (print driver) again, converts view data in order to utilize this print driver will want typescripts, just like the described operation of previous embodiment.
By above explanation as can be known, as follows about the power supply state of computer system 200 of the present invention: in one embodiment, whole computer system 200 is in the first powder source management mode fully, and it for example is a duty.In another embodiment, whole computer system 200 is in the second source management mode fully, and it for example is a power down mode.In another embodiment, when computer system 200 entered image read mode, then the first 210 of this computer system 200 maintained the first powder source management mode, and the second portion 230 of computer system 200 is in the second source management mode.
By the teaching of the various embodiments described above, can summarize basic operational steps more of the present invention, one as shown in Figure 3.Fig. 3 is the process flow diagram according to the method for managing power supply of a preferred embodiment of the present invention.This method for managing power supply is applicable to a computer system.Described computer system definition has image read mode, the first powder source management mode and second source management mode, and the power that the power that consumes when wherein operating on the second source management mode consumes when operating on the first powder source management mode is for few.Be same as the previously described embodiments about the first powder source management mode, second source management mode, image read mode, no longer repeat in this.In addition, described computer system includes first and second portion, and first includes again Graphics Processing Unit, access space and display, and second portion includes storer, and this memory storage has view data.The method includes the following step: carry out unloading operation in response to computer system enters image read mode, in order to the view data unloading in the storer (shown in step S302) to access space; After finishing in response to unloading operation, second portion is changed into and operates in the second source management mode by operating in the first powder source management mode, and first is kept operate in the first powder source management mode (shown in step S304); And make Graphics Processing Unit utilize display to show image (shown in step S306) according to being stored in the view data of access space.
In sum, the present invention solves a wherein embodiment of foregoing problems, is that computer system is divided into first and second portion.Wherein first is the member that must apply to when showing image, include Graphics Processing Unit and display, and second portion includes CPU (central processing unit), chipset and storer, and this memory storage has view data.Under such basis, when computer system enters image read mode, in the access space that just can first the view data unloading in the storer to Graphics Processing Unit itself be had.And after the unloading operation is finished, just can make with the irrelevant second portion of image display operations and change into and operate in the less second source management mode of consumed power by operating in the first powder source management mode, and the first relevant with image display operations kept operate in the first powder source management mode, so that Graphics Processing Unit is according to being stored in the view data of access space and utilizing display to show image.So, computer system just can be saved electric energy when showing image.
The present invention solves another embodiment of foregoing problems, is to increase first a storage unit newly in computer system, and changes the chipset that employing has two storage unit controllers.Then, computer system is divided into first and second portion.Wherein first is the member that must apply to when showing image, includes Graphics Processing Unit, display, newly-increased storage unit and the first of chipset.The first of described chipset includes a wherein storage unit controller, and this storage unit controller is electrically connected aforesaid newly-increased storage unit.And second portion includes CPU (central processing unit), stores the old storage unit of storer, the system of view data and the second portion of chipset.The second portion of described chipset includes another storage unit controller, and this another storage unit controller is electrically connected aforesaid old storage unit.Under such basis, when computer system enters image read mode, in the access space that just can first the view data unloading in the storer to newly-increased storage unit be had.And after the unloading operation is finished, just can make in the computer system with the irrelevant second portion of image display operations and change into and operate in the less second source management mode of consumed power by operating in the first powder source management mode, and first relevant with image display operations in the computer system is kept operate in the first powder source management mode, so that Graphics Processing Unit is according to being stored in the view data of access space and utilizing display to show image.So, computer system just can be saved electric energy when showing image.
Although the present invention discloses as above with preferred embodiment; so it is not to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the claim scope person of defining.
Claims (16)
1. computer system, its definition has an image read mode, one first powder source management mode and a second source management mode, the power that the power ratio that consumes when wherein operating on this second source management mode consumes when operating on this first powder source management mode is few, and this computer system comprises:
One first, include a Graphics Processing Unit, a control module, with a display, wherein dispose an access space in this Graphics Processing Unit, this control module is in order to transmit a control command to this Graphics Processing Unit, so that this Graphics Processing Unit is carried out a corresponding operation to this shown image of this display; And
One second portion includes a CPU (central processing unit), a chipset and a storer, and this memory storage has a view data;
Wherein, when this computer system is in this image read mode, this access space stores this view data, and this second portion changes into and operates in this second source management mode by operating in this first powder source management mode, and this first keeps and operates in this first powder source management mode, so that this Graphics Processing Unit is according to being stored in this view data of this access space and utilizing this display to show an image.
2. computer system, its definition has an image read mode, one first powder source management mode and a second source management mode, the power that the power ratio that consumes when wherein operating on this second source management mode consumes when operating on this first powder source management mode is few, and this computer system comprises:
One first, include first and first storage unit of the Graphics Processing Unit that is connected to a display, a control module, a chipset, wherein the first storage unit is electrically connected this Graphics Processing Unit and disposes an access space, this control module is in order to transmit a control command to this Graphics Processing Unit, so that this Graphics Processing Unit is carried out a corresponding operation to this shown image of this display; And
One second portion includes second portion and a storer of a CPU (central processing unit), the second storage unit, chipset, and this memory storage has a view data;
Wherein, when this computer system is in this image read mode, this access space stores this view data, and the second portion of this computer system changes into and operates in this second source management mode by operating in this first powder source management mode, and the first of this computer system keeps and operates in this first powder source management mode, so that this Graphics Processing Unit is according to being stored in this view data of this access space and utilizing this display to show an image.
3. computer system according to claim 2, wherein the first of this chipset has one first storage unit controller, and this first storage unit controller is electrically connected this first storage unit.
4. computer system according to claim 3, wherein the second portion of this chipset is electrically connected this CPU (central processing unit), this Graphics Processing Unit and this storer, and the second portion of this chipset also has one second storage unit controller, and this second storage unit controller is electrically connected this second storage unit.
5. computer system according to claim 1 and 2, wherein the member in the second portion of the member in the first of this computer system and this computer system is electrically connected to respectively different voltage planes.
6. computer system according to claim 1 and 2, this view data of having of this access space wherein, the second portion that is this computer system carries out unloading operation in response to this computer system enters this image read mode, thereby this view data unloading in this storer is obtained to this access space.
7. computer system according to claim 1 and 2, wherein this respective operations comprises and is this image of scrolling or replaces this image.
8. computer system according to claim 1 and 2, wherein this control module comprises it being by an internal integrated circuit serial communication bus, or is electrically connected this Graphics Processing Unit by at least one universal input output pin position.
9. computer system according to claim 1 and 2, wherein this control module comprises it being an embedded controller.
10. computer system according to claim 1 and 2, wherein this chipset is comprised of a north bridge chips and a South Bridge chip or this chipset is an one chip that has simultaneously the function of this north bridge chips and this South Bridge chip.
11. computer system according to claim 1 and 2, wherein this view data comprises it being the view data of e-book or photo.
12. computer system according to claim 1 and 2, wherein this computer system also is loaded with one and prints driver, and this print driver becomes this view data in order to the file conversion that wish is printed.
13. method for managing power supply, be applicable to a computer system, this computer system definition has an image read mode, one first powder source management mode and a second source management mode, the power that the power ratio that consumes when wherein operating on this second source management mode consumes when operating on this first powder source management mode is few, this computer system includes a first and a second portion, this first includes again a Graphics Processing Unit, one control module, with a display, wherein dispose an access space in this Graphics Processing Unit, this control module is in order to transmit a control command to this Graphics Processing Unit, so that this Graphics Processing Unit is carried out a corresponding operation to this shown image of this display; And this second portion includes a CPU (central processing unit), a chipset and a storer, and this memory storage has a view data, and the method comprises the following steps:
Carry out unloading operation in response to this computer system enters this image read mode, in order to this view data unloading in this storer to this access space;
After this unloading operation is finished, this second portion is changed into and operates in this second source management mode by operating in this first powder source management mode, and this first is kept operate in this first powder source management mode; And
Make this Graphics Processing Unit utilize this display to show an image according to being stored in this view data of this access space.
14. method for managing power supply, be applicable to a computer system, this computer system definition has an image read mode, one first powder source management mode and a second source management mode, the power that the power ratio that consumes when wherein operating on this second source management mode consumes when operating on this first powder source management mode is few, this computer system includes a first and a second portion, this first includes again a Graphics Processing Unit that is connected to a display, one control module, the first of one chipset and the first storage unit, wherein the first storage unit is electrically connected this Graphics Processing Unit and disposes an access space, this control module is in order to transmit a control command to this Graphics Processing Unit, so that this Graphics Processing Unit is carried out a corresponding operation to this shown image of this display; And this second portion includes second portion and a storer of a CPU (central processing unit), the second storage unit, chipset, and this memory storage has a view data;
The method comprises the following steps:
Carry out unloading operation in response to this computer system enters this image read mode, in order to this view data unloading in this storer to this access space;
After this unloading operation is finished, the second portion of this computer system is changed into and operates in this second source management mode by operating in this first powder source management mode, and the first of this computer system is kept operate in this first powder source management mode; And
Make this Graphics Processing Unit utilize this display to show an image according to being stored in this view data of this access space.
15. method for managing power supply according to claim 14, wherein the first of this chipset has one first storage unit controller, and this first storage unit controller is electrically connected this first storage unit.
16. method for managing power supply according to claim 15, wherein the second portion of this chipset is electrically connected this CPU (central processing unit), this Graphics Processing Unit and this storer, and the second portion of this chipset also has one second storage unit controller, and this second storage unit controller is electrically connected this second storage unit.
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| US35376810P | 2010-06-11 | 2010-06-11 | |
| US61/353,768 | 2010-06-11 |
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| CN1530953A (en) * | 2003-03-11 | 2004-09-22 | 北京华旗资讯数码科技有限公司 | Video player |
| CN2697720Y (en) * | 2003-08-29 | 2005-05-04 | 孙亮 | Portable information terminal capable of being used as energy-saving type electronic book |
| TW201019311A (en) * | 2008-11-07 | 2010-05-16 | Fih Hong Kong Ltd | Display device and method for using the same |
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| JP4651992B2 (en) * | 2004-08-19 | 2011-03-16 | 株式会社ブリヂストン | Electronic book display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1530953A (en) * | 2003-03-11 | 2004-09-22 | 北京华旗资讯数码科技有限公司 | Video player |
| CN2697720Y (en) * | 2003-08-29 | 2005-05-04 | 孙亮 | Portable information terminal capable of being used as energy-saving type electronic book |
| TW201019311A (en) * | 2008-11-07 | 2010-05-16 | Fih Hong Kong Ltd | Display device and method for using the same |
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| TWI436200B (en) | 2014-05-01 |
| TW201145009A (en) | 2011-12-16 |
| CN101976111A (en) | 2011-02-16 |
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