Space recognition method and apparatus of input device

An input device and space technology, applied in the field of space recognition, can solve problems such as low reproducibility, inability to measure angles, inconvenient use, etc.

Inactive Publication Date: 2007-12-26
MICROINFINITY +1
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  • Summary
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  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, the user always has to control and operate an input device such as a pen or a mouse in a certain direction, which causes inconvenience in use
[0013] Since an input device using conventional angular velocity utilizes angular velocity values, it cannot measure angles and can only take relative values, resulting in lower reproducibility
In traditional methods using thresholds, precise manipulations cannot be performed because microsignals are perceived as deviations
In this case, angular drift may occur if wrong estimated bias information is used

Method used

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  • Space recognition method and apparatus of input device
  • Space recognition method and apparatus of input device
  • Space recognition method and apparatus of input device

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Embodiment Construction

[0030] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. However, the present invention may be embodied in various forms and is not limited to the illustrated embodiments, but these embodiments are provided so that this disclosure will be thorough and complete, and will convey the full concept of the invention to those skilled in the art.

[0031] The term "input device" used here not only includes currently widely used devices such as presenters, spatial mice for personal computers (PCs), extended spatial remote controllers for digital televisions (TVs), ) emulates spatial input devices for games, rear projection display (HMD) input devices, pedometers, vehicle navigators, and vehicle black boxes, and also includes all input devices that will be used in the future.

[0032] Hereinafter, the present invention will be described in detail with reference to the accompanyin...

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Abstract

A method of recognizing space according to the movement of an input device, the method comprising: measuring angular velocity data using an angular velocity sensor; measuring acceleration data using an accelerometer; estimating a bias of the angular velocity sensor using the acceleration data; calculating Euler angles between a reference navigational frame and a body frame using the angular velocity data and the acceleration data; and identifying position information of the input device according to the movement of the input device by using the calculated Euler angles.

Description

field of invention [0001] The present invention relates to a method and apparatus for recognizing a space from motion of an input device, and more particularly to a method and apparatus for recognizing a space according to motion of an input device by calculating Euler angles using an angular velocity sensor and an accelerometer. Background technique [0002] In general, a navigation system involves a system that provides various information that requires the use of navigation sensors to determine a position. This information includes position, azimuth, velocity, acceleration, time, head angle and angular velocity. The navigation algorithm is a navigation algorithm adopted by the navigation system, which is used to measure the azimuth angle of the aircraft body. [0003] Referring to Fig. 1, the navigation frame is a region-level frame, and its origin is located on the center of mass of the aircraft body. In addition, the navigation frame defines the N-axis on the aircraft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/10G01C21/16G06F3/038
CPCG06F3/038G06F3/0346G01C21/16G01C21/183G06F3/00
Inventor 宋辰祐林相洙
Owner MICROINFINITY
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