Display interface updating method for touch screen and multimedia electronic device

• US 8,773,380 B2
• Filed: 04/03/2010
• Issued: 07/08/2014
• Est. Priority Date: 07/13/2009
• Status: Active Grant

• Current Assignee: Hisense Mobile Communications Technology Co., Ltd. (Qingdao Huatong State-Owned Capital Operation Company Limited)
• Original Assignee: Hisense Mobile Communications Technology Co., Ltd. (Qingdao Huatong State-Owned Capital Operation Company Limited)
• Inventors: Li, Yuanyuan
• Primary Examiner(s): SHENG, TOM V
• Application Number:
  US13/383,818
• Publication Number:
  US 20120139862A1
• Time in Patent Office: 1,557 Days
• Field of Search: 345/173, 178 1803- 1807, 715/863, 715/864
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06F 3/0485 Scrolling or panning
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: H04M 2250/22 including a touch pad, a touch sensor or a touch detector digitizers for touch screens G06F3/041

Abstract

An interface updating method for touch screen and a multimedia electronic device are provided, which are used for solving the problem of how to update a display interface of a touch screen according to the slide operating characteristics of a controller. When the controller slides on the touch screen, the operating characteristics of the controller are determined based on the predetermined number of pixel point samples that the slide trail of the controller goes through at last. The interface is updated according to the operating characteristics of the controller. The interface adjustment visually obtains an effect corresponding to the movement of the controller.

Claims

1. A method for updating an interface of a touch screen, comprising:

a first operation of determining, from location information on coordinates of and time information on a last preset number of sampled pixel points through which a sliding trace of a control body sliding on the touch screen passes, a distance over which and a period of time in which the control body slides from the first one to the last one of the sampled pixel points in a movement direction of the display interface;

a second operation of determining, from the distance and the period of time, the highest speed v₀ at which the control body slides with a zero initial speed and a constant acceleration a₀ starting from the first sampled pixel point to the last sampled pixel point and the acceleration a₀; and

a third operation of periodically determining a step by which a menu is adjusted and updating the display interface at a preset interval T of updating the interface assuming that the interface slides starting with an initial speed of v₀ or of the product of v₀ and a first weight and with a deceleration of a₀ or of the product of a₀ and a second weight after the control body is released so that the display interface is updated with an effect of decelerated sliding until it stops at an optimum display location, wherein a period of time in which the interface slides between two consecutive instances of updating thereof is preset to T₀.

2. The method of claim 1, wherein the first operation comprises:

determining the size of a space of sampled pixel points and clearing the space of sampled pixel points upon capturing a signal that the touch screen is touched with the control body;

sampling the sliding trace of the control body while being dragged, acquiring the location information on the coordinates of the sampled pixel points and the time information when the pixel points are passed through and updating the space of samples constantly;

determining, from the location information on the coordinates of the first sampled pixel point in the space of samples to come into the space of samples and the last sampled pixel point to come into the space of samples, the distance s₀ over which the control body slides from the first one to the last one of the sampled pixel points in the movement direction of the display interface after the control body is released from the touch screen; and

determining, from the time information on the first sampled pixel point and the last sampled pixel point, the period of time t₀ in which the control body slides from the first sampled pixel point to the last sampled pixel point.

3. The method of claim 2, wherein the second operation comprises:

a₀=2s₀/t₀² and v₀=a₀t₀.

4. The method of claim 1, wherein the second operation comprises:

a₀=2s₀/t₀² and v₀=a₀t₀.

5. The method of claim 1, wherein in the third operation, the display interface slides starting with an initial speed of v₀ and with a deceleration of a₀ after the control body is released, and the third operation comprises:

B11. triggering a timer for an interval at which the interface is updated, wherein the time-length of the timer is T;

B12. waiting for expiration of the timer;

B13. calculating from a₀, v₀ and T₀ the distance s over which the menu slides in a period of time T₀ and the speed v′

at which the menu slides at the end of the period of time T₀, wherein;

s=v₀T₀−

a₀T₀²/2; and

v′

=v₀−

a₀T₀;

B14. assigning v′

to v₀, i.e., v₀=v′

;

B15. if one of the following four conditions is satisfied, then an operation B17 is executed;

otherwise, determining a target display location of the menu from the sliding direction of the control body determined from a space of samples, the current display location of the menu and s, and updating the menu with the target display location;

the first condition of s≦

0;

the second condition of v₀≦

0;

the third condition of w≠

0 with n≦

h; and

the fourth condition of w<

0 or w>

(n−

h) with n>

h;

wherein w represents the location at which the contents of the menu are currently displayed, the height of the entire menu is a number, n, of pixels, and the height of a menu area of the touch screen is a number, h, of pixels;

B16. waiting for subsequent expiration of the timer, and then going back to the operation B13;

B17. determining whether none of the following conditions is satisfied, and if so, then ending;

otherwise, determining the distance S_total between the current display location and the optimum display location, wherein;

S_total=|w| for the condition of w≠

0 with n≦

h;

S_total=|w| for the condition of w<

0 with n>

h; and

S_total=w−

(n−

h) for the condition of w>

(n−

h) with n>

h;

B18. determining an adjusting step S_step as S_step=S_total/Q wherein Q is an integer number larger than zero;

B19. determining the target display location of the menu from the sliding direction of the control body in the last phase determined from the space of samples, the current display location of the menu and S_step, and updating the menu with the target display location; and

B110. waiting for subsequent expiration of the timer and then going back to the operation B17.

6. The method of claim 1, wherein in the third operation, the display interface slides starting with an initial speed of v₀ and with a deceleration of a₀ after the control body is released, and the third operation comprises:

B21. triggering a timer for an interval at which the interface is updated, wherein the time-length of the timer is T;

B22. waiting for expiration of the timer;

B23. calculating from a₀, v₀ and T₀ the distance s over which the menu slides in a period of time T₀ and the speed v′

at which the menu slides at the end of the period of time T₀, wherein;

s=v₀T₀−

a₀T₀²/2; and

v′

=v₀−

a₀T₀;

B24. assigning v′

to v₀, i.e., v₀=v′

;

B25. if one of the following four conditions is satisfied, then an operation B27 is executed;

otherwise, determining a target display location of the menu from the sliding direction of the control body determined from a space of samples, the current display location of the menu and s, and updating the menu with the target display location;

the first condition of s≦

0;

the second condition of v₀≦

0;

the third condition of w≠

0 with n≦

h; and

the fourth condition of w<

0 or w>

(n−

h) with n>

h;

wherein w represents the location at which the contents of the menu are currently displayed, the height of the entire menu is a number, n, of pixels, and the height of a menu area of the touch screen is a number, h, of pixels;

B26. waiting for subsequent expiration of the timer, and then going back to the operation B23;

B27. determining whether none of the following conditions is satisfied, and if so, then ending;

otherwise, determining the distance S_total between the current display location and the optimum display location, wherein;

S_total=|w| for the condition of w≠

0 with n≦

h;

S_total=|w| for the condition of w<

0 with n>

h; and

S_total=w−

(n−

h) for the condition of w>

(n−

h) with n>

h;

B28. determining an adjusting step S_step as S_step=S_total/Q, wherein Q is an integer larger than zero, and when S_step is smaller than a preset minimum adjusting step S_min, determining S_step as S_min;

B29. determining the target display location of the menu from the sliding direction of the control body in the last phase determined from the space of samples, the current display location of the menu and S_step, and updating the menu with the target display location; and

B210. waiting for subsequent expiration of the timer and then going back to the operation B27.

7. The method of claim 1, wherein in the third operation, the display interface slides starting with an initial speed of the product v₀′

of v₀ and the first weight and with a deceleration of the product a₀′

of a₀ and the second weight after the control body is released, and the third operation comprises;

B31. triggering a timer for an interval at which the interface is updated, wherein the time-length of the timer is T;

B32. waiting for expiration of the timer;

B33. calculating from a₀′

, v₀′ and

T₀ the distance s over which the menu slides in a period of time T₀ and the speed v′

at which the menu slides at the end of the period of time T₀, wherein;

s=v₀′

T₀−

a₀′

T₀²/2; and

v′

=v₀′

−

a₀′

T₀;

B34. assigning v′

to v₀, i.e., v₀=v′

;

B35. if one of the following four conditions is satisfied, then an operation B37 is executed;

otherwise, determining a target display location of the menu from the sliding direction of the control body determined from a space of samples, the current display location of the menu and s, and updating the menu with the target display location;

the first condition of s≦

0;

the second condition of v₀≦

0;

the third condition of w≠

0 with n≦

h; and

the fourth condition of w<

0 or w>

(n−

h) with n>

h;

wherein w represents the location at which the contents of the menu are currently displayed, the height of the entire menu is a number, n, of pixels, and the height of a menu area of the touch screen is a number, h, of pixels;

B36. waiting for subsequent expiration of the timer, and then going back to the operation B33;

B37. determining whether none of the following conditions is satisfied, and if so, then ending;

otherwise, determining the distance S_total between the current display location and the optimum display location, wherein;

S_total=|w| for the condition of w≠

0 with n≦

h;

S_total=|w| for the condition of w<

0 with n>

h; and

S_total=w−

(n−

h) for the condition of w>

(n−

h) with n>

h;

B38. determining an adjusting step S_step as S_step=S_total/Q, wherein Q is an integer larger than zero;

B39. determining the target display location of the menu from the sliding direction of the control body in the last phase determined from the space of samples, the current display location of the menu and S_step, and updating the menu with the target display location; and

B310. waiting for subsequent expiration of the timer and then going back to the operation B37.

8. The method of claim 1, wherein in the third operation, the display interface slides starting with an initial speed of the product v₀′

of v₀ and the first weight and with a deceleration of the product a₀′

of a₀ and the second weight after the control body is released, and the third operation comprises;

B41. triggering a timer for an interval at which the interface is updated, wherein the time-length of the timer is T;

B42. waiting for expiration of the timer;

B43. calculating from a₀′

, v₀′ and

T₀ the distance s over which the menu slides in a period of time T₀ and the speed v′

at which the menu slides at the end of the period of time T₀, wherein;

s=v₀′

T₀−

a₀′

T₀²/2; and

v′

=v₀′

−

a₀′

T₀;

B44. assigning v′

to v₀, i.e., v₀=v′

;

B45. if one of the following four conditions is satisfied, then an operation B47 is executed;

otherwise, determining a target display location of the menu from the sliding direction of the control body determined from a space of samples, the current display location of the menu and s and updating the menu with the target display location;

the first condition of s≦

0;

the second condition of v₀≦

0;

the third condition of w≠

0 with n≦

h; and

the fourth condition of w<

0 or w>

(n−

h) with n>

h;

wherein w represents the location at which the contents of the menu are currently displayed, the height of the entire menu is a number, n, of pixels, and the height of a menu area of the touch screen is a number, h, of pixels;

B46. waiting for subsequent expiration of the timer, and then going back to the operation B43;

B47. determining whether none of the following conditions is satisfied, and if so, then ending;

otherwise, determining the distance S_total between the current display location and the optimum display location, wherein;

S_total=|w| for the condition of w≠

0 with n≦

h;

S_total=|w| for the condition of w<

0 with n>

h; and

S_total=w−

(n−

h) for the condition of w>

(n−

h) with n>

h;

B48. determining an adjusting step S_step as S_step=S_total/Q, wherein Q is an integer larger than zero, and when S_step is smaller than a preset minimum adjusting step S_min, determining S_step as S_min;

B49. determining the target display location of the menu from the sliding direction of the control body in the last phase determined from the space of samples, the current display location of the menu and S_step, and updating the menu with the target display location; and

B410. waiting for subsequent expiration of the timer and then going back to the operation B47.

9. The method of claim 1, wherein T and T₀ are equal.

10. A non-transitory computer readable storage medium having instructions thereon for performing the method of claim 1.

11. A multimedia electronic device, comprising:

a first determination unit for determining, from location information on coordinates of and time information on a last preset number of sampled pixel points through which a sliding trace of a control body sliding on a touch screen passes, a distance over which and a period of time in which the control body slides from the first one to the last one of the sampled pixel points in a movement direction of a display interface;

a second determination unit for determining, from the distance and the period of time, the highest speed v₀ at which the control body slides with a zero initial speed and a constant acceleration a₀ starting from the first sampled pixel point to the last sampled pixel point and the acceleration a₀; and

a determination and updating unit for periodically determining a step by which a menu is adjusted and updating the display interface at a preset interval T of updating the interface assuming that the interface slides starting with an initial speed of v₀ or of the product of v₀ and a first weight and with a deceleration of a₀ or of the product of a₀ and a second weight after the control body is released so that the display interface is updated with an effect of decelerated sliding until it stops at an optimum display location, wherein a period of time in which the interface slides between two consecutive instances of updating thereof is preset to T₀.

12. The multimedia electronic device of claim 11, wherein the multimedia electronic device is a mobile communication terminal.

13. The multimedia electronic device of claim 11, wherein, the first determination unit comprises:

a sub-unit for determining the size of a space of sampled pixel points and clearing the space of sampled pixel points upon capturing a signal that the touch screen is touched with the control body;

a sub-unit for sampling the sliding trace of the control body while being dragged, acquiring the location information on the coordinates of the sampled pixel points and the time information when the pixel points are passed through and updating the space of samples constantly;

a sub-unit for determining, from the location information on the coordinates of the first sampled pixel point in the space of samples to come into the space of samples and the last sampled pixel point to come into the space of samples, the distance s₀ over which the control body slides from the first one to the last one of the sampled pixel points in the movement direction of the display interface after the control body is released from the touch screen; and

a sub-unit for determining, from the time information on the first sampled pixel point and the last sampled pixel point, the period of time t₀ in which the control body slides from the first sampled pixel point to the last sampled pixel point.

14. The multimedia electronic device of claim 13, wherein, the second determination unit comprises:

a sub-unit for determining a₀=2s₀/t₀²; and

a sub-unit for determining v₀=a₀t₀.

15. The multimedia electronic device of claim 11, wherein, the second determination unit comprises:

a sub-unit for determining a₀=2s₀/t₀²; and

a sub-unit for determining v₀=a₀t₀.

16. The multimedia electronic device of claim 11, wherein, assuming that the interface slides starting with an initial speed of v₀ and with a deceleration of a₀ after the control body is released, the determination and updating unit is particularly configured to perform the following operations:

B11. triggering a timer for an interval at which the interface is updated, wherein the time-length of the timer is T;

B 12. waiting for expiration of the timer;

B13. calculating from a₀, v₀ and T₀ the distance s over which the menu slides in a period of time T₀ and the speed v′

at which the menu slides at the end of the period of time T₀, wherein;

s=v₀T₀−

a₀T₀²/2; and

v′

=v₀−

a₀T₀;

B14. assigning v′

to v₀, i.e., v₀=v′

;

B15. if one of the following four conditions is satisfied, then an operation B17 is executed;

otherwise, determining a target display location of the menu from the sliding direction of the control body determined from a space of samples, the current display location of the menu and s, and updating the menu with the target display location;

the first condition of s≦

0;

the second condition of v₀≦

0;

the third condition of w<

0 with n≦

h; and

the fourth condition of w<

0 or w>

(n−

h) with n>

h;

wherein w represents the location at which the contents of the menu are currently displayed, the height of the entire menu is a number, n, of pixels, and the height of a menu area of the touch screen is a number, h, of pixels;

B16. waiting for subsequent expiration of the timer, and then going back to the operation B13;

B17. determining whether none of the following conditions is satisfied, and if so, then ending;

otherwise, determining the distance S_total between the current display location and the optimum display location, wherein;

S_total=|w| for the condition of w≠

0 with n≦

h;

S_total=|w| for the condition of w<

0 with n>

h; and

S_total=w−

(n−

h) for the condition of w>

(n−

h) with n>

h;

B18. determining an adjusting step S_step as S_step=S_total/Q, wherein Q is an integer number larger than zero;

B19. determining the target display location of the menu from the sliding direction of the control body in the last phase determined from the space of samples, the current display location of the menu and S_step, and updating the menu with the target display location; and

B110. waiting for subsequent expiration of the timer and then going back to the operation B17.

17. The multimedia electronic device of claim 11, wherein, assuming that the interface slides starting with an initial speed of v₀ and with a deceleration of a₀ after the control body is released, the determination and updating unit is particularly configured to perform the following operations:

B21. triggering a timer for an interval at which the interface is updated, wherein the time-length of the timer is T;

B22. waiting for expiration of the timer;

B23. calculating from a₀, v₀ and T₀ the distance s over which the menu slides in a period of time T₀ and the speed v′

at which the menu slides at the end of the period of time T₀, wherein;

s=v₀T₀−

a₀T₀²/2; and

v′

=v₀−

a₀T₀;

B24. assigning v′

to v₀, i.e., v₀=v′

;

B25. if one of the following four conditions is satisfied, then an operation B27 is executed;

otherwise, determining a target display location of the menu from the sliding direction of the control body determined from a space of samples, the current display location of the menu and s, and updating the menu with the target display location;

the first condition of s≦

0;

the second condition of v₀≦

0;

the third condition of w≠

0 with n≦

h; and

the fourth condition of w<

0 or w>

(n−

h) with n>

h;

wherein w represents the location at which the contents of the menu are currently displayed, the height of the entire menu is a number, n, of pixels, and the height of a menu area of the touch screen is a number, h, of pixels;

B26. waiting for subsequent expiration of the timer, and then going back to the operation B23;

B27. determining whether none of the following conditions is satisfied, and if so, then ending;

otherwise, determining the distance S_total between the current display location and the optimum display location, wherein;

S_total=|w| for the condition of w≠

0 with n≦

h;

S_total=|w| for the condition of w<

0 with n>

h; and

S_total=w−

(n−

h) for the condition of w>

(n−

h) with n>

h;

B28. determining an adjusting step S_step as S_step=S_total/Q, wherein Q is an integer larger than zero, and when S_step is smaller than a preset minimum adjusting step S_min, determining S_step as S_min;

B29. determining the target display location of the menu from the sliding direction of the control body in the last phase determined from the space of samples, the current display location of the menu and S_step, and updating the menu with the target display location; and

B210. waiting for subsequent expiration of the timer and then going back to the operation B27.

18. The multimedia electronic device of claim 11, wherein, assuming that the interface slides starting with an initial speed of the product v₀′

of v₀ and the first weight and with a deceleration of the product a₀′

of a₀ and the second weight after the control body is released, the determination and updating unit is particularly configured to perform the following operations;

B31. triggering a timer for an interval at which the interface is updated, wherein the time-length of the timer is T;

B32. waiting for expiration of the timer;

B33. calculating from a₀′

, v₀′ and

T₀ the distance s over which the menu slides in a period of time T₀ and the speed v′

at which the menu slides at the end of the period of time T₀, wherein;

s=v₀′

T₀−

a₀′

T₀²/2; and

v′

=v₀′

−

a₀′

T₀;

B34. assigning v′

to v₀, i.e., v₀=v′

;

B35. if one of the following four conditions is satisfied, then an operation B37 is executed;

otherwise, determining a target display location of the menu from the sliding direction of the control body determined from a space of samples, the current display location of the menu and s, and updating the menu with the target display location;

the first condition of s≦

0;

the second condition of v₀≦

0;

the third condition of w≠

0 with n≦

h; and

the fourth condition of w<

0 or w>

(n−

h) with n>

h;

wherein w represents the location at which the contents of the menu are currently displayed, the height of the entire menu is a number, n, of pixels, and the height of a menu area of the touch screen is a number, h, of pixels;

B36. waiting for subsequent expiration of the timer, and then going back to the operation B33;

B37. determining whether none of the following conditions is satisfied, and if so, then ending;

otherwise, determining the distance S_total between the current display location and the optimum display location, wherein;

S_total=|w| for the condition of w≠

0 with n≦

h;

S_total=|w| for the condition of w<

0 with n>

h; and

S_total=w−

(n−

h) for the condition of w>

(n−

h) with n>

h;

B38. determining an adjusting step S_step as S_step=S_total/Q, wherein Q is an integer larger than zero;

B39. determining the target display location of the menu from the sliding direction of the control body in the last phase determined from the space of samples, the current display location of the menu and S_step, and updating the menu with the target display location; and

B310. waiting for subsequent expiration of the timer and then going back to the operation B37.

19. The multimedia electronic device of claim 11, wherein, assuming that the interface slides starting with an initial speed of the product v₀′

of v₀ and the first weight and with a deceleration of the product a₀′

of a₀ and the second weight after the control body is released, the determination and updating unit is particularly configured to perform the following operations;

B41. triggering a timer for an interval at which the interface is updated, wherein the time-length of the timer is T;

B42. waiting for expiration of the timer;

B43. calculating from a₀′

, v₀′ and

T₀ the distance s over which the menu slides in a period of time T₀ and the speed v′

at which the menu slides at the end of the period of time T₀, wherein;

s=v₀′

T₀−

a₀′

T₀²/2; and

v′

=v₀′

−

a₀′

T₀;

B44. assigning v′

to v₀, i.e., v₀=v′

;

B45. if one of the following four conditions is satisfied, then an operation B47 is executed;

otherwise, determining a target display location of the menu from the sliding direction of the control body determined from a space of samples, the current display location of the menu and s and updating the menu with the target display location;

the first condition of s≦

0;

the second condition of v₀≦

0;

the third condition of w≠

0 with n≦

h; and

the fourth condition of w<

0 or w>

(n−

h) with n>

h;

wherein w represents the location at which the contents of the menu are currently displayed, the height of the entire menu is a number, n, of pixels, and the height of a menu area of the touch screen is a number, h, of pixels;

B46. waiting for subsequent expiration of the timer, and then going back to the operation B43;

B47. determining whether none of the following conditions is satisfied, and if so, then ending;

otherwise, determining the distance S_total between the current display location and the optimum display location, wherein;

S_total=|w| for the condition of w≠

0 with n≦

h;

S_total=|w| for the condition of w<

0 with n>

h; and

S_total=w−

(n−

h) for the condition of w>

(n−

h) with n>

h;

B48. determining an adjusting step S_step as S_step=S_total/Q, wherein Q is an integer larger than zero, and when S_step is smaller than a preset minimum adjusting step S_min, determining S_step as S_min;

B49. determining the target display location of the menu from the sliding direction of the control body in the last phase determined from the space of samples, the current display location of the menu and S_step, and updating the menu with the target display location; and

B410. waiting for subsequent expiration of the timer and then going back to the operation B47.

20. The multimedia electronic device of claim 11, wherein T and T₀ are equal.