MOBILE TERMINAL AND METHOD FOR MOVING CURSOR THEREOF

• US 20140118260A1
• Filed: 08/15/2011
• Published: 05/01/2014
• Est. Priority Date: 06/20/2011
• Status: Abandoned Application

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Wang, Haowen, Zhang, Zhiping, Chen, Yilin, Zeng, Yiting, Lin, Junxuan, Lv, Qiuyu
• Application Number:
  US14/126,027
• Publication Number:
  US 20140118260A1
• Time in Patent Office: Days
• US Class Current: 345/158
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors

Abstract

The disclosure discloses a mobile terminal and method for implementing movement of a cursor thereof. The method includes: acquiring accelerated velocities a_x, a_y, and a_z of a mobile terminal in a set three-dimensional coordinate system; calculating a current left/right tilt rate K1 and a current forward/backward tilt rate K2 of the mobile terminal; and moving a cursor left/right or forward/backward based on the tilt rate K1 and the tilt rate K2. The mobile terminal includes: an information acquiring unit, a tilt rate calculating unit and a cursor moving unit. With the method of the disclosure, a user needs only to tilt a mobile terminal in all directions to move a cursor at will. The severer tilt is, the faster the cursor moves. In this way, the trouble of repeated touch or key-press is reduced, high efficiency and convenience is achieved, and user experience is enhanced.

Claims

1. A method for implementing movement of a cursor by a mobile terminal, comprising:

acquiring accelerated velocities a_x, a_y, and a_z of a mobile terminal in a set three-dimensional coordinate system;

calculating a current left/right tilt rate K1 and a current forward/backward tilt rate K2 of the mobile terminal; and

moving a cursor left/right or forward/backward based on the tilt rate K1 and the tilt rate K2.

2. The method according to claim 1, wherein the step of acquiring accelerated velocities a_x, a_y, and a_z of a mobile terminal in a set three-dimensional coordinate system comprises:

subscribing an acceleration induction vector GVector event, and acquiring the accelerated velocities a_x, a_y, and a_z of the mobile terminal in set three-dimensional coordinate axes according to acquired GVector information in real time.

3. The method according to claim 1, wherein the step of calculating a current left/right tilt rate K1 and a current forward/backward tilt rate K2 of the mobile terminal comprises:

according to the accelerated velocities a_x, a_y, and a_z, obtaining the left/right tilt rate K1 using a_x/a_y, and obtaining the forward/backward tilt rate K2 using a_y/a_z.

4. The method according to claim 1, wherein the step of moving a cursor left/right or forward/backward based on the tilt rate K1 and the tilt rate K2 comprises:

A;

starting a preset left/right movement timeout timer T1 and a preset forward/backward movement timeout timer T2;

B;

when the timer T1 or the timer T2 expires, determining whether the tilt rate |K1| or the tilt rate |K2| exceeds a set threshold; and

C;

when the tilt rate |K1| or the tilt rate |K2| exceeds the set threshold, moving the cursor one grid left/right or forward/backward, continuing to determining movement of the cursor based on the current |K1| or |K2|, and returning to the step A.

5. The method according to claim 4, wherein

timing time of the timer T1 and timing time of the timer T2 are preset fixed values;

or, timing time of the timer T1 is T1=A1/|K1| and timing time of the timer T2 is T2=A2/|K2|, wherein A1 and A2 are constants; and

when T1=A1/|K1| and T2=A2/|K2|, in the step C, before returning to the step A, re-calculating the timing time T1 or T2 based on the current |K1| or |K2|.

6. The method according to claim 1, further comprising:

before acquiring the accelerated velocities a_x, a_y, and a_z of the mobile terminal in the set three-dimensional coordinate system;

determining whether a movement function of a gravity induction cursor is enabled, and when the movement function of the gravity induction cursor is enabled, triggering an operation of acquiring the accelerated velocities a_x, a_y, and a_z of the mobile terminal in the set three-dimensional coordinate system.

7. A mobile terminal, comprising:

an information acquiring unit configured to acquire accelerated velocities a_x, a_y, and a_z of a mobile terminal in a set three-dimensional coordinate system;

a tilt rate calculating unit configured to calculate a current left/right tilt rate K1 and a current forward/backward tilt rate K2 of the mobile terminal; and

a cursor moving unit configured to move a cursor left/right or forward/backward based on the tilt rate K1 and the tilt rate K2.

8. The mobile terminal according to claim 7, wherein

the information acquiring unit is configured to subscribe an acceleration induction vector GVector event, and acquire the accelerated velocities a_x, a_y, and a_z of the mobile terminal in set three-dimensional coordinate axes according to acquired GVector information in real time;

the tilt rate calculating unit is configured to, according to the accelerated velocities a_x, a_y, and a_z, obtain the left/right tilt rate K1 using a_x/a_y, and obtain the forward/backward tilt rate K2 using a_y/a_z; and

the cursor moving unit comprises;

a timing sub-unit configured to start a preset left/right movement timeout timer T1 and a preset forward/backward movement timeout timer T2;

a determining sub-unit configured to, when the timer T1 or the timer T2 expires, determine whether the tilt rate |K1| or the tilt rate |K2| exceeds a set threshold; and

a cursor moving sub-unit configured to;

when the tilt rate |K1| or the tilt rate |K2| exceeds the set threshold, move the cursor one grid left/right or forward/backward, continue to determining movement of the cursor based on the current |K1| or |K2|, and trigger the timing sub-unit.

9. The mobile terminal according to claim 8, wherein in the timing sub-unit, timing time of the timer T1 and timing time of the timer T2 are preset fixed values;

or, timing time of the timer T1 is T1=A1/|K1| and timing time of the timer T2 is T2=A2/|K2|, wherein A1 and A2 are constants;

when T1=A1/|K1| and T2=A2/|K2|, before the cursor moving sub-unit triggers the timing sub-unit, the timing time T1 or T2 is re-calculated based on the current |K1| or |K2|.

10. The mobile terminal according to claim 7, further comprising:

a detecting unit configured to;

determine whether a movement function of a gravity induction cursor is enabled, and trigger the information acquiring unit when the movement function of the gravity induction cursor is enabled.