SYSTEM AND METHOD FOR INTELLIGENT MULTIMEDIA-BASED THERMAL POWER MANAGEMENT IN A PORTABLE COMPUTING DEVICE

• US 20140359324A1
• Filed: 06/04/2013
• Published: 12/04/2014
• Est. Priority Date: 06/04/2013
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: PARK, HEE-JUN, NAIK, JATIN
• Granted Patent: US 9,158,358 B2
• Time in Patent Office: Days
• US Class Current: 713/320
• CPC Class Codes: G06F 1/203 for portable computers, e.g. for laptops
• CPC Class Codes: G06F 1/206 comprising thermal management
• CPC Class Codes: G06F 1/3206 Monitoring of events, devices or parameters that trigger a change in power modality
• CPC Class Codes: G06F 1/3234 Power saving characterised by the action undertaken
• CPC Class Codes: G06F 12/0292 using tables or multilevel address translation means G06F12/023 takes precedence; address translation in virtual memory systems G06F12/10
• CPC Class Codes: G06F 5/00 Methods or arrangements for data conversion without changing the order or content of the data handled
• CPC Class Codes: G09G 2320/06 Adjustment of display parameters
• CPC Class Codes: G09G 2320/08 Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 2330/045 Protection against panel overheating
• CPC Class Codes: G09G 2340/0407 Resolution change, inclusive of the use of different resolutions for different screen areas
• CPC Class Codes: G09G 2340/0435 Change or adaptation of the frame rate of the video stream
• CPC Class Codes: G09G 2360/08 Power processing, i.e. workload management for processors involved in display operations, such as CPUs or GPUs
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T

Abstract

Various embodiments of methods and systems for intelligent multimedia-based thermal power management implemented in a portable computing device (“PCD”) are disclosed. To reduce or increase power consumption in the PCD, embodiments adjust one or more visual multimedia parameters, the settings of which contribute to power consumption associated with an overall multimedia workload. The selection of visual multimedia parameters for setting adjustment is a function of the change in user experience versus the change in power consumption that will likely result from the setting adjustment. Exemplary visual multimedia parameters for which settings may be adjusted by certain embodiments include, but are not limited to, color depth, display brightness, GPU processing resolution, image dynamics algorithm selection, resolution scaling ratios and frames per second processing rates.

Claims

1. A method for intelligent multimedia-based thermal power management in a portable computing device (“

PCD”

), the method comprising;

monitoring a condition in the PCD associated with power consumption;

comparing the condition to a predefined threshold associated with the condition;

based on the comparison of the condition to the predefined threshold, determining an adjustment to power consumption;

receiving data indicative of active settings of a plurality of visual multimedia parameters, wherein the setting of each visual multimedia parameter contributes to an overall multimedia workload in the PCD;

querying performance graphs for each of the visual multimedia parameters and mapping the active setting data of each visual multimedia parameter to its respective curve, wherein the active setting data defines a tangent with a slope;

comparing the tangent slopes associated with each visual multimedia parameter;

based on the comparison of tangent slopes, selecting a first visual multimedia parameter; and

adjusting the active setting of the first visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is adjusted.

2. The method of claim 1, wherein:

determining an adjustment to power consumption comprises determining a reduction in power consumption;

selecting a first visual multimedia parameter based on the comparison of tangent slopes comprises selecting the visual multimedia parameter for which adjustment of the active setting will provide the least detrimental impact on user experience per unit reduction in power consumption; and

modifying the overall multimedia workload comprises reducing the overall multimedia workload such that the power consumption in the PCD is reduced.

3. The method of claim 2, further comprising:

determining that an additional reduction in power consumption in the PCD is warranted;

based on the comparison of tangent slopes, selecting a second visual multimedia parameter; and

adjusting the active setting of the second visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is further reduced.

4. The method of claim 1, wherein:

determining an adjustment to power consumption comprises determining an increase in power consumption;

selecting a first visual multimedia parameter based on the comparison of tangent slopes comprises selecting the visual multimedia parameter for which adjustment of the active setting will provide the most positive impact on user experience per unit increase in power consumption; and

modifying the overall multimedia workload comprises increasing the overall multimedia workload such that power consumption in the PCD is increased.

5. The method of claim 4, further comprising:

determining that an additional increase in power consumption in the PCD is acceptable;

based on the comparison of tangent slopes, selecting a second visual multimedia parameter; and

adjusting the active setting of the second visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is further increased.

6. The method of claim 1, wherein the first visual multimedia parameter is associated with a frame per second processing rate.

7. The method of claim 1, wherein the first visual multimedia parameter is associated with a color depth setting.

8. The method of claim 1, wherein the first visual multimedia parameter is associated with an image dynamics algorithm selection.

9. The method of claim 1, wherein the first visual multimedia parameter is associated with a display brightness setting.

10. The method of claim 1, wherein the first visual multimedia parameter is associated with a resolution scaling ratio.

11. A computer system for intelligent multimedia-based thermal power management in a portable computing device (“

PCD”

), the system comprising;

a power consumption and temperature (“

PCT”

) module configured to;

monitor a condition in the PCD associated with power consumption;

compare the condition to a predefined threshold associated with the condition; and

based on the comparison of the condition to the predefined threshold, determine an adjustment to power consumption; and

a user experience (“

Ux”

) modeling module configured to;

receive data indicative of active settings of a plurality of visual multimedia parameters, wherein the setting of each visual multimedia parameter contributes to an overall multimedia workload in the PCD;

query performance graphs for each of the visual multimedia parameters and map the active setting data of each visual multimedia parameter to its respective curve, wherein the active setting data defines a tangent with a slope;

compare the tangent slopes associated with each visual multimedia parameter; and

based on the comparison of tangent slopes, select a first visual multimedia parameter; and

an intelligent multimedia thermal policy manager (“

IM-TPM”

) module configured to;

adjust the active setting of the first visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is adjusted.

12. The system of claim 11, wherein:

the PCT module being configured to determine an adjustment to power consumption comprises being configured to determine a reduction in power consumption;

the Ux modeling module being configured to select a first visual multimedia parameter based on the comparison of tangent slopes comprises being configured to select the visual multimedia parameter for which adjustment of the active setting will provide the least detrimental impact on user experience per unit reduction in power consumption; and

the IM-TPM module being configured to modify the overall multimedia workload comprises being configured to reduce the overall multimedia workload such that the power consumption in the PCD is reduced.

13. The system of claim 12, further comprising:

the PCT module being configured to determine that an additional reduction in power consumption in the PCD is warranted;

the Ux modeling module being configured to select a second visual multimedia parameter based on the comparison of tangent slopes; and

the IM-TPM module being configured to adjust the active setting of the second visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is further reduced.

14. The system of claim 11, wherein:

the PCT module being configured to determine an adjustment to power consumption comprises being configured to determine an increase in power consumption;

the Ux modeling module being configured to select a first visual multimedia parameter based on the comparison of tangent slopes comprises being configured to select the visual multimedia parameter for which adjustment of the active setting will provide the most positive impact on user experience per unit increase in power consumption; and

the IM-TPM module being configured to modify the overall multimedia workload comprises being configured to increase the overall multimedia workload such that power consumption in the PCD is increased.

15. The system of claim 14, further comprising:

the PCT module being configured to determine that an additional increase in power consumption in the PCD is acceptable;

the Ux modeling module being configured to select a second visual multimedia parameter based on the comparison of tangent slopes; and

the IM-TPM module being configured to adjust the active setting of the second visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is further increased.

16. The system of claim 11, wherein the first visual multimedia parameter is associated with a frame per second processing rate.

17. The system of claim 11, wherein the first visual multimedia parameter is associated with a color depth setting.

18. The system of claim 11, wherein the first visual multimedia parameter is associated with an image dynamics algorithm selection.

19. The system of claim 11, wherein the first visual multimedia parameter is associated with a display brightness setting.

20. The system of claim 11, wherein the first visual multimedia parameter is associated with a resolution scaling ratio.

21. A computer system for intelligent multimedia-based thermal power management in a portable computing device, the system comprising:

means for monitoring a condition in the PCD associated with power consumption;

means for comparing the condition to a predefined threshold associated with the condition;

means for determining an adjustment to power consumption based on the comparison of the condition to the predefined threshold;

means for receiving data indicative of active settings of a plurality of visual multimedia parameters, wherein the setting of each visual multimedia parameter contributes to an overall multimedia workload in the PCD;

means for querying performance graphs for each of the visual multimedia parameters and mapping the active setting data of each visual multimedia parameter to its respective curve, wherein the active setting data defines a tangent with a slope;

means for comparing the tangent slopes associated with each visual multimedia parameter;

means for selecting a first visual multimedia parameter based on the comparison of tangent slopes; and

means for adjusting the active setting of the first visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is adjusted.

22. The computer system of claim 21, wherein:

means for determining an adjustment to power consumption comprises means for determining a reduction in power consumption;

means for selecting a first visual multimedia parameter based on the comparison of tangent slopes comprises means for selecting the visual multimedia parameter for which adjustment of the active setting will provide the least detrimental impact on user experience per unit reduction in power consumption; and

means for modifying the overall multimedia workload comprises means for reducing the overall multimedia workload such that the power consumption in the PCD is reduced.

23. The computer system of claim 22, further comprising:

means for determining that an additional reduction in power consumption in the PCD is warranted;

means for selecting a second visual multimedia parameter based on the comparison of tangent slopes; and

means for adjusting the active setting of the second visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is further reduced.

24. The computer system of claim 21, wherein:

means for determining an adjustment to power consumption comprises means for determining an increase in power consumption;

means for selecting a first visual multimedia parameter based on the comparison of tangent slopes comprises means for selecting the visual multimedia parameter for which adjustment of the active setting will provide the most positive impact on user experience per unit increase in power consumption; and

means for modifying the overall multimedia workload comprises means for increasing the overall multimedia workload such that power consumption in the PCD is increased.

25. The computer system of claim 24, further comprising:

means for determining that an additional increase in power consumption in the PCD is acceptable;

means for selecting a second visual multimedia parameter based on the comparison of tangent slopes; and

means for adjusting the active setting of the second visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is further increased.

26. The computer system of claim 21, wherein the first visual multimedia parameter is associated with a frame per second processing rate.

27. The computer system of claim 21, wherein the first visual multimedia parameter is associated with a color depth setting.

28. The computer system of claim 21, wherein the first visual multimedia parameter is associated with an image dynamics algorithm selection.

29. The computer system of claim 21, wherein the first visual multimedia parameter is associated with a display brightness setting.

30. The computer system of claim 21, wherein the first visual multimedia parameter is associated with a resolution scaling ratio.

31. A computer program product comprising a computer usable device having a computer readable program code embodied therein, said computer readable program code adapted to be executed to implement a method for intelligent multimedia-based thermal power management in a portable computing device, said method comprising:

monitoring a condition in the PCD associated with power consumption;

comparing the condition to a predefined threshold associated with the condition;

based on the comparison of the condition to the predefined threshold, determining an adjustment to power consumption;

receiving data indicative of active settings of a plurality of visual multimedia parameters, wherein the setting of each visual multimedia parameter contributes to an overall multimedia workload in the PCD;

querying performance graphs for each of the visual multimedia parameters and mapping the active setting data of each visual multimedia parameter to its respective curve, wherein the active setting data defines a tangent with a slope;

comparing the tangent slopes associated with each visual multimedia parameter;

based on the comparison of tangent slopes, selecting a first visual multimedia parameter; and

adjusting the active setting of the first visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is adjusted.

32. The computer program product of claim 31, wherein:

determining an adjustment to power consumption comprises determining a reduction in power consumption;

selecting a first visual multimedia parameter based on the comparison of tangent slopes comprises selecting the visual multimedia parameter for which adjustment of the active setting will provide the least detrimental impact on user experience per unit reduction in power consumption; and

modifying the overall multimedia workload comprises reducing the overall multimedia workload such that the power consumption in the PCD is reduced.

33. The computer program product of claim 32, further comprising:

determining that an additional reduction in power consumption in the PCD is warranted;

based on the comparison of tangent slopes, selecting a second visual multimedia parameter; and

adjusting the active setting of the second visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is further reduced.

34. The computer program product of claim 31, wherein:

determining an adjustment to power consumption comprises determining an increase in power consumption;

selecting a first visual multimedia parameter based on the comparison of tangent slopes comprises selecting the visual multimedia parameter for which adjustment of the active setting will provide the most positive impact on user experience per unit increase in power consumption; and

modifying the overall multimedia workload comprises increasing the overall multimedia workload such that power consumption in the PCD is increased.

35. The computer program product of claim 34, further comprising:

determining that an additional increase in power consumption in the PCD is acceptable;

based on the comparison of tangent slopes, selecting a second visual multimedia parameter; and

adjusting the active setting of the second visual multimedia parameter, wherein adjusting the active setting modifies the overall multimedia workload such that power consumption in the PCD is further increased.

36. The computer program product of claim 31, wherein the first visual multimedia parameter is associated with a frame per second processing rate.

37. The computer program product of claim 31, wherein the first visual multimedia parameter is associated with a color depth setting.

38. The computer program product of claim 31, wherein the first visual multimedia parameter is associated with an image dynamics algorithm selection.

39. The computer program product of claim 31, wherein the first visual multimedia parameter is associated with a display brightness setting.

40. The computer program product of claim 31, wherein the first visual multimedia parameter is associated with a resolution scaling ratio.