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Cursor control method

A control method and cursor technology, applied in the field of cursor control, can solve problems such as poor performance, affecting the trajectory output by the navigation device, and not easily reflecting trajectory changes.

Inactive Publication Date: 2012-05-16
PIXART IMAGING INC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, improper setting of smoothing parameters will affect the trajectory output by the navigation device
When the trajectory smoothness is too high, it will not be easy to reflect the real-time trajectory changes, and the performance of the sharp trajectory or small-scale trajectory is poor; when the trajectory smoothness is too low, it is difficult to output a smooth trajectory

Method used

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Embodiment Construction

[0027] In order to make the above and other objects, features and advantages of the present invention more apparent, a detailed description will be given below in conjunction with the accompanying drawings. In addition, only some components are shown in each drawing of the present invention, and components not directly related to the description of the present invention are omitted.

[0028] In addition, in the description of the present invention, the same members or steps are denoted by the same symbols.

[0029] Please refer to figure 1 , which shows a block diagram of an interactive video system according to an embodiment of the present invention. The interactive video system includes a detection device 10 and a video display 90 . The detection device 10 can be a mouse, a pointing device, a touch device or other known devices for detecting coordinates and / or trajectories. The detection device 10 preferably includes a processing unit, which is used to calculate the coord...

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Abstract

The invention provides a cursor control method for adjusting the smoothness of the track of a cursor on an image display according to track changes sensed by a sensing device.

Description

technical field [0001] The invention relates to an interactive image system, in particular to a cursor control method capable of dynamically adjusting trajectory smoothing parameters. Background technique [0002] An interactive video system usually includes a navigation device and a video display device. The navigation device can be, for example, a mouse or a pointing device, which is used to estimate the displacement and transmit the displacement to the image display device. In this way, the user can use the navigation device to relatively control the movement of the cursor displayed on the image display device. [0003] However, the displacement transmitted by the navigation device to the image display device is a quantized value. If the quantized displacement is not smoothed, the displacement displayed by the image display device will show a jagged change. In this way, when the user intends to perform, for example, drawing operations on the image display device through...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033G06F3/041G01B11/02G06F3/0354
Inventor 苏宗敏林志新陈信嘉林育佳
Owner PIXART IMAGING INC
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