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Optical point device and its data transmission method

A data transmission method and optical pointing technology, applied in the field of optical pointing devices and data transmission, can solve problems such as circuit board damage

Inactive Publication Date: 2008-06-04
ATLAB INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During this process, conventional printed circuit boards may be damaged

Method used

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  • Optical point device and its data transmission method
  • Optical point device and its data transmission method
  • Optical point device and its data transmission method

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Embodiment Construction

[0054] Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0055] 2 is a block diagram illustrating data transmission between an optical pointing device and a host computer according to an exemplary embodiment of the present invention, which includes a button part 10, a scroll part 20, a button / scroll signal input part 30, an optical pointing device chip 100 , a computer interface 200 , and a host computer 300 . The optical pointing device 100 includes an optical pointing sensing part 45 , a multiplexer 160 , a data input / output controller 170 and an input signal analyzing part 180 . The optical pointing sensing section 45 includes an optical section 41 , an image sensor 42 , an analog-to-digital converter (ADC) 43 , and a motion value calculation section 44 .

[0056] The function of each block shown in Fig. 2 will be described.

[0057] The button part 10, the scroll part 20, and ...

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Abstract

Provided are an optical pointing device and a data transmission method thereof. The optical pointing apparatus includes: an optical pointing sensing part for receiving an image of a subject to output digital image data and a motion value; an input signal analysis part for receiving a command from the host computer and analyzing the type of the command to output first and second operation control signals; a data input / output controller for outputting the motion value in response to the first operation control signal and outputting the digital image data in response to the second operation control signal; and a computer interface for receiving the motion value and the digital image data having different data transmission protocols to directly transmit the value and the data to the host computer. Therefore, it is possible to accurately analyze an optical state in the optical pointing device and detect defects in an image sensor and peripheral parts, and transmit image data to a host computer having different data protocol, without separating an optical pointing device chip from a printed circuit board in the optical pointing device and risking damage to the printed circuit board.

Description

technical field [0001] The present invention relates to an optical pointing device, and more particularly to an optical pointing device serving as a computer interface and a data transmission method thereof capable of transmitting data by using a protocol different from that defined by a host computer, Instead, connect the computer interface directly to the host computer. Background technique [0002] An optical mouse (a type of optical pointing device) is an essential peripheral for computers. An optical mouse uses an optical sensor device chip to quickly calculate its speed and direction of movement and thereby determine its coordinates. In recent years, optical mice have largely replaced rollerball mice. [0003] The optical mouse transmits basic information, such as the movement information of the optical mouse in the X direction and the Y direction, the input information of the selection button, the rolling information of the wheel, and the image information data of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033G06F3/038
CPCG06F3/0317G06F3/03543G06F3/0354G06F3/03
Inventor 郭钟择李芳远
Owner ATLAB INC
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