CN1773423A - Method for regulating central processor working frequency and its power supply voltage - Google Patents
Method for regulating central processor working frequency and its power supply voltage Download PDFInfo
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- CN1773423A CN1773423A CN 200410052092 CN200410052092A CN1773423A CN 1773423 A CN1773423 A CN 1773423A CN 200410052092 CN200410052092 CN 200410052092 CN 200410052092 A CN200410052092 A CN 200410052092A CN 1773423 A CN1773423 A CN 1773423A
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Abstract
A method for regulating operation frequency and power voltage of central processor includes generating device idle signal, generating and storing existed frequency signal according to device idle signal, generating regulation - down signal of operation frequency by storing existed operation frequency and power voltage, regulating down operation frequency and generating regulation - down signal of power voltage according to operation frequency signal, regulating power voltage of central processor down to decrease power consumption of portable information device according to regulation - down signal of power voltage.
Description
[technical field]
The present invention is particularly to a kind of central processing unit frequency of operation of portable information apparatus and method of supply voltage thereof adjusted relevant for the control method of portable information apparatus.
[background technology]
The portable information product of present listing, for example as notebook computer (Notebook), personal digital assistant (personal digital assistant, below can be called for short PDA) or some removable online and communicating devices, generally towards light, thin, short, little four megatrend actively in development, therefore future nearly all portable information product must have all that advantages such as high-effect, low power consumption and thermal diffusivity be good could satisfy gently, four big demands such as thin, short, little.And wherein the notion of power saving is a topmost developing direction in the portable information product.As being example with PDA or palm PC (Pocket PC or PALM etc.), no matter be, in reaching, the LCD in the device, central processing unit (the following CPU of abbreviation) save as three important keys of power saving from the access of data or the angle of installing electricity-saving function under the running.
General portable information apparatus all has when device is idle at present, turns off the function of screen light source, and this function can make the power consumption of device significantly reduce, and can increase the running time of device.But can't when device is idle, make adjustment, to realize the low power consumption purpose of portable information apparatus to the frequency of operation and the supply voltage thereof of central processing unit.
[summary of the invention]
The object of the present invention is to provide a kind of method for managing power supply, be applied in portable information apparatus, make device when idle, can reduce its power consumption to increase the service time of device.
According to purpose of the present invention, a kind of method of adjusting central processing unit frequency of operation and supply voltage thereof provided by the present invention, be applied to portable information apparatus, the method comprises the following step: when confirming not receive the input of any external signal in the certain hour, and the generation device idle signal; According to the device idle signal, produce the existing frequency of operation of this central processing unit of storage and the signal of supply voltage thereof; According to the existing frequency of operation that stores this central processing unit and the signal of supply voltage thereof, store the existing frequency of operation and the supply voltage thereof of central processing unit, and produce the signal that downgrades this central processing unit frequency of operation; According to the signal that downgrades this central processing unit frequency of operation, downgrade the frequency of operation of central processing unit and produce the signal that downgrades this central processing unit supply voltage; And, downgrade the supply voltage of central processing unit and the power consumption of portable information apparatus is reduced according to downgrading the signal of this central processing unit supply voltage.
Compared to prior art, the present invention has the characteristics of low power consumption.
[description of drawings]
Fig. 1 is the main method process flow diagram of a preferred embodiment of the present invention, shows when device is idle, adjusts central processing unit frequency of operation and supply voltage thereof to reduce the method flow diagram of device power consumption.
Fig. 2 is the main method process flow diagram of a preferred embodiment of the present invention, shows when the idle back of device receives arbitrary external signal, adjusts central processing unit frequency of operation and supply voltage thereof the method flow diagram with the recovery device normal operation.
[embodiment]
Fig. 1 is the main method process flow diagram of a preferred embodiment of the present invention, shows when device is idle, adjusts central processing unit frequency of operation and supply voltage thereof the method flow diagram with minimizing device power consumption, below conjunction with figs. is elaborated to the inventive method.
When portable information apparatus operates constantly, device can be made corresponding action according to the many unlike signals that receive, wherein received signal can be divided into external signal and internal signal, external signal comprises the signal that the panel striking produces, the signal that button operation produces, signal that produces when connecting external power supply or received signal of communication, and internal signal comprises when receiving the panel striking external signal input relevant with playing back music, produce at the inner relevant internal signal of playing back music that has of device, this internal signal can continue to produce so that the music playing module that installs can continue playing back music according to the internal signal that receives.Explain for another example, for example the user is for send Email on the striking panel during corresponding icon, can produce the striking external signal of corresponding send Email, device can produce inner control signal according to the input of this signal, according to this control signal, the Email sending module of device just can see through network with Email and send out.
Therefore as shown in Figure 1, the inventive method is characterised in that when confirming to install the input that does not all receive any external signal in the certain hour (step 100), meeting generation device idle signal (step 101), then according to the device idle signal that is produced, can produce the existing frequency of operation of storage central processing unit and the signal of supply voltage thereof and also produce screen light source shutdown signal (step 102) simultaneously, therefore store the existing frequency of operation of central processing unit and the signal of supply voltage thereof according to this, the existing frequency of operation of central processing unit and supply voltage thereof can be temporary in the interior storage module of device, and according to this screen light source shutdown signal, the screen light source of this device can be closed (step 103), after the action of the existing frequency of operation of above-mentioned storage central processing unit and supply voltage thereof is finished, can and then produce the signal (step 104) that downgrades the central processing unit frequency of operation, downgrade the signal of the frequency of operation of central processing unit according to this, the frequency of operation of the central processing unit of device just can be reduced to some levels, this level is enough to keep the running that this installs some basic modules at least, such as the broadcast of music, the access of data etc., when the frequency of operation of central processing unit is lowered, can produce the signal (step 105) that downgrades the central processing unit supply voltage, downgrade the signal of central processing unit supply voltage according to this, the supply voltage of central processing unit just can be downgraded the level that is enough to keep the basic running of this device, for example keeps the basic running of central processing unit this moment, the running of playing back music and (steps 106) such as runnings of data access.Downgraded because of supply voltage this moment, and the running of some modules has been closed or has been lowered running usefulness (for example say that the screen light source has been closed and the frequency of operation of central processing unit be lowered etc.) in the device, thus this moment device power consumption reduce (step 107).
In the inventive method of in above-mentioned cooperation Fig. 1, being narrated, comprise many different functionalities programs, for example can comprise wherein that power management routines is in order to confirm whether to receive external signal, whether to determine the generation device idle signal, and carry out corresponding function according to the different functional programs of device idle signal control that is produced, above-mentioned external signal can comprise the signal of panel striking generation, signal, the signal that produces when connecting external power supply or the received signal of communication etc. that button operation produces.For instance, power management routines can confirm whether to have the signal input that receives the striking of portable information apparatus panel and produced, the signal that button operation the produced input of portable information apparatus, the signal input that is produced when portable information apparatus connects external power supply and signal of communication etc., when power management routines confirms to confiscate above-mentioned any signal input, just can the generation device idle signal, and make screen light source control program, according to the light source of the device idle signal stopping device screen that is produced; Make central processing unit frequency control program, according to the device idle signal that is produced, the frequency of operation of present central processing unit is stored in the storage module of device after, downgrade the frequency of operation of central processing unit; Make the Control of Voltage program, according to the device idle signal that is produced, present supply voltage is stored in the storage module of device after, downgrade supply voltage etc.The amplitude that above-mentioned in addition central processing unit frequency of operation reduces, frequency of operation and the supply voltage of keeping the basic module running at last can see through program be made device according to different demands setting, for example set the access etc. that frequency of operation after central processing unit downgrades still can be done the broadcast of music or make data, or set the running that voltage after downgrading still can holdout device be done music or data access.
In above-mentioned invention implementation method flow process, the generation of device internal signal can't influence this and whether install the generation device idle signal.For instance, when receiving the input of the panel striking external signal relevant with playing back music, produce at the inner relevant internal signal of playing back music that has of device, the generation of this internal signal can come playing back music according to the internal signal that receives for the music playing module that makes device, internal signal in playing back music continues to produce with when continuing playing back music, if do not receive the input of any external signal within a certain period of time fully, then device still can the generation device idle signal, promptly the screen light source of device can be closed at this moment, the frequency of operation of central processing unit can be lowered, and the supply voltage of device also can be lowered so that the power consumption that installs reduces, but this moment, music was still play.
Therefore according to the above,, the power consumption of portable information apparatus is reduced, and therefore just can prolong portable information apparatus work hours by the inventive method.
Fig. 2 is the main method process flow diagram of a preferred embodiment of the present invention, show when the arbitrary external signal of the idle reception of device, adjust central processing unit frequency of operation and supply voltage thereof with the method flow diagram of recovery device normal operation, below will cooperate icon that the inventive method is done the detail explanation.
As shown in Figure 2, when idle a period of time of this device, and under the situation that the frequency of operation of its central processing unit and supply voltage thereof have downgraded all (step 200), confirming has the signal that receives panel striking generation, the signal that button operation produces, signal that produces when connecting external power supply or signal of communication etc. are (step 201) during a kind of input of external signal wherein, generation device restoring signal (step 202), according to this device restoring signal, can in storage module, obtain earlier the previous supply voltage record of central processing unit, and generation screen light source start signal (step 203), previous supply voltage record according to obtained central processing unit, the supply voltage of central processing unit can be resumed to previous power supply state, so that device is enough to carry out required running, and according to screen light source start signal, the screen light source of device can be opened (step 204), supply voltage at central processing unit can be resumed to previous power supply state, can in storage module, obtain the previous frequency of operation record (step 205) of central processing unit, previous frequency of operation record according to central processing unit, the frequency of operation of central processing unit can be resumed to original state (step 206), the required running so that device can be correlated with.At this moment, device just returns to normal power consumption, and promptly complete electric weight demand with device itself changes (step 207).
In the inventive method of in above-mentioned cooperation Fig. 2, being narrated, comprise many different functionalities programs, for example can comprise wherein that power management routines is in order to confirm whether to receive external signal, whether to determine the generation device restoring signal, and carry out corresponding function according to the different functional programs of device restoring signal control that is produced, above-mentioned external signal can comprise the signal of panel striking generation, signal, the signal that produces when connecting external power supply or the received signal of communication etc. that button operation produces.For instance, power management routines can confirm whether to have the signal input that receives the striking of portable information apparatus panel and produced, the signal that button operation the produced input of portable information apparatus, the signal input that is produced when portable information apparatus connects external power supply and signal of communication etc., when power management routines is confirmed to receive in the above-mentioned signal wherein a kind of input of signal, just can the generation device restoring signal, and make screen light source control program, according to the light source of the device restoring signal opening device screen that is produced; Make the Control of Voltage program,, in storage module, obtain previous supply voltage record supply voltage is returned to previous level according to the device restoring signal that is produced; Make central processing unit frequency control program,, in storage module, obtain the previous frequency of operation of central processing unit so that the frequency of operation of central processing unit returns to previous level etc. according to the device restoring signal that is produced.
Comprehensive the above, can reach the switch of control screen light source by the inventive method, the frequency of operation of control central processing unit and control purpose such as its supply voltage.
The applied portable information apparatus of the present invention can comprise palm PC (Pocket PC, Palm etc.), PDA(Personal Digital Assistant), notebook computer etc.
Claims (16)
1. method of adjusting central processing unit frequency of operation and supply voltage thereof is applied to have a portable information apparatus of this central processing unit, and this method comprises the following step:
When (a) confirming not receive the input of an external signal in the certain hour, produce a device idle signal;
(b) according to this device idle signal, produce one and store the existing frequency of operation of this central processing unit and the signal of supply voltage thereof;
(c) store the existing frequency of operation of this central processing unit and the signal of supply voltage thereof according to this, store the existing frequency of operation and the supply voltage thereof of this central processing unit, and produce a signal that downgrades this central processing unit frequency of operation;
(d), downgrade the frequency of operation of this central processing unit and produce a signal that downgrades this central processing unit supply voltage according to this signal that downgrades this central processing unit frequency of operation; And
(e), downgrade the supply voltage of this central processing unit and the power consumption of this portable information apparatus is reduced according to this signal that downgrades this central processing unit supply voltage.
2. the method for adjustment central processing unit frequency of operation according to claim 1 and supply voltage thereof, it is characterized in that: in this step (a), when comprising the signal input that the panel striking of confirming not receive in the certain hour this portable information apparatus produced, produce this device idle signal.
3. the method for adjustment central processing unit frequency of operation according to claim 1 and supply voltage thereof, it is characterized in that: in this step (a), comprise when confirming not receive the signal that button operation the produced input of this portable information apparatus in the certain hour, produce this device idle signal.
4. the method for adjustment central processing unit frequency of operation according to claim 1 and supply voltage thereof, it is characterized in that: in this step (a), comprise when confirming not receive in the certain hour signal input that is produced when this portable information apparatus connects external power supply, produce this device idle signal.
5. the method for adjustment central processing unit frequency of operation according to claim 1 and supply voltage thereof is characterized in that: in this step (a), comprise when confirming not receive signal of communication in the certain hour, produce this device idle signal.
6. the method for adjustment central processing unit frequency of operation according to claim 1 and supply voltage thereof, it is characterized in that: in this step (b), more comprise according to this device idle signal, when producing the signal of this existing frequency of operation that stores this central processing unit and supply voltage thereof, a screen light source shutdown signal of this portable information apparatus screen light source is closed in generation, and, close the screen light source of this portable information apparatus according to this screen light source shutdown signal.
7. method of adjusting central processing unit frequency of operation and supply voltage thereof is applied to have a massaging device of this central processing unit, and this method comprises the following step:
When (a) confirming not receive the input of an external signal in the certain hour, produce a device idle signal;
(b) after this device idle signal produces, when confirming to receive the input of this external signal, produce a device restoring signal;
(c), obtain the previous supply voltage record of this central processing unit according to this device restoring signal;
(d), the supply voltage of this central processing unit is returned to original state, and obtain the previous frequency of operation record of this central processing unit according to the previous supply voltage record of this obtained central processing unit; And
(e), the frequency of operation of this central processing unit is returned to original state according to the previous frequency of operation record of this obtained central processing unit.
8. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof, it is characterized in that: in this step (a), when comprising the signal input that the panel striking of confirming not receive in the certain hour this massaging device produced, produce this device idle signal.
9. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof, it is characterized in that: in this step (a), comprise when confirming not receive the signal that button operation the produced input of this massaging device in the certain hour, produce this device idle signal.
10. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof, it is characterized in that: in this step (a), comprise when confirming not receive in the certain hour signal input that is produced when this massaging device connects external power supply, produce this device idle signal.
11. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof is characterized in that: in this step (a), comprise when confirming not receive signal of communication in the certain hour, produce this device idle signal.
12. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof, it is characterized in that: in this step (b), when comprising the signal input that the panel striking of confirming to receive this massaging device produced, produce this device restoring signal.
13. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof, it is characterized in that: in this step (b), comprise when confirming to receive the signal that button operation the produced input of this massaging device, produce this device restoring signal.
14. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof, it is characterized in that: in this step (b), comprise when confirming to receive the signal input that is produced when this massaging device connects external power supply, produce this device restoring signal.
15. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof is characterized in that: in this step (b), comprise when confirming to receive signal of communication, produce this device restoring signal.
16. the method for adjustment central processing unit frequency of operation according to claim 7 and supply voltage thereof, it is characterized in that: in this step (c), more comprise according to this device restoring signal, when obtaining the previous frequency of operation record of this central processing unit, produce a screen light source start signal of opening this massaging device screen light source, and, open the screen light source of this massaging device according to this screen light source start signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052092 CN1773423A (en) | 2004-11-08 | 2004-11-08 | Method for regulating central processor working frequency and its power supply voltage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410052092 CN1773423A (en) | 2004-11-08 | 2004-11-08 | Method for regulating central processor working frequency and its power supply voltage |
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| CN1773423A true CN1773423A (en) | 2006-05-17 |
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| CN 200410052092 Pending CN1773423A (en) | 2004-11-08 | 2004-11-08 | Method for regulating central processor working frequency and its power supply voltage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344815B (en) * | 2008-08-22 | 2010-06-09 | 华硕电脑股份有限公司 | Computer system for regulating electric voltage and frequency of CPU |
| CN101699368B (en) * | 2009-11-02 | 2012-05-23 | 中兴通讯股份有限公司 | Method and device for adaptive dynamic frequency or voltage adjustment of CPU |
| CN103345296A (en) * | 2013-06-04 | 2013-10-09 | 三星半导体(中国)研究开发有限公司 | Dynamic voltage frequency adjustment trigger device and method |
| CN103440032A (en) * | 2013-09-11 | 2013-12-11 | 广州市久邦数码科技有限公司 | Power-saving system and power-saving method by adjusting CPU (central processing unit) frequency of mobile terminal |
| CN109521864A (en) * | 2017-09-19 | 2019-03-26 | 微盟电子(昆山)有限公司 | Portable computing device and working frequency improving method thereof |
-
2004
- 2004-11-08 CN CN 200410052092 patent/CN1773423A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344815B (en) * | 2008-08-22 | 2010-06-09 | 华硕电脑股份有限公司 | Computer system for regulating electric voltage and frequency of CPU |
| CN101699368B (en) * | 2009-11-02 | 2012-05-23 | 中兴通讯股份有限公司 | Method and device for adaptive dynamic frequency or voltage adjustment of CPU |
| CN103345296A (en) * | 2013-06-04 | 2013-10-09 | 三星半导体(中国)研究开发有限公司 | Dynamic voltage frequency adjustment trigger device and method |
| CN103345296B (en) * | 2013-06-04 | 2016-08-10 | 三星半导体(中国)研究开发有限公司 | Dynamic voltage frequency adjustment trigger device and method |
| CN103440032A (en) * | 2013-09-11 | 2013-12-11 | 广州市久邦数码科技有限公司 | Power-saving system and power-saving method by adjusting CPU (central processing unit) frequency of mobile terminal |
| CN109521864A (en) * | 2017-09-19 | 2019-03-26 | 微盟电子(昆山)有限公司 | Portable computing device and working frequency improving method thereof |
| CN109521864B (en) * | 2017-09-19 | 2023-06-06 | 微盟电子(昆山)有限公司 | Portable computing device and working frequency lifting method thereof |
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