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Optical Mouse SoC

A single chip and mouse technology, applied in the field of system single chip, can solve the problems of large demand for pins, the number of pins cannot be less than twelve, and the cost cannot be effectively reduced, so as to optimize the total number of pins and reduce packaging cost, cost reduction effect

Inactive Publication Date: 2011-12-28
SUNPLUS INNOVATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the chip 101 must set independent input and output pins for each switch of the optical mouse, the number of pins is large, and the number of pins cannot be less than twelve, which also makes it impossible to effectively reduce the cost.

Method used

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  • Optical Mouse SoC
  • Optical Mouse SoC
  • Optical Mouse SoC

Examples

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0039] Please refer to figure 2 , which shows an embodiment of the optical mouse of the present invention. The optical mouse 10 is provided with a plurality of buttons, such as buttons BR (right button) and BL (left button) and so on. In addition, the optical mouse 10 can also be provided with a scroll wheel WM. For optical positioning, the optical mouse 10 is also provided with a light source LD that emits light and an optical sensing array 40 that senses reflected light.

[0040] image 3 It shows an embodiment of the optical mouse SoC of the present invention, and also shows the operating structure of the SoC 12 in the optical mouse 10 . The SoC 12 of the present invention integrates a microcontroller subsystem 14A and an optica...

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Abstract

The invention provides an optical mouse system single chip applied in an optical mouse. The system single chip comprises electric pins coupled with each work voltage, a drive pin for controlling a light source, an optical sensing array for receiving reflected light, a signal pin for exchanging data with a host and output / input pins the number of which is less than that of switches, wherein a plurality of switches arranged on the optical mouse are used for receiving the trigger control of users, and each output / input pin can receive and distinguish the state of the multiple switches and enables the sum of the output / input pins to be less than that of the switches, thereby lowering cost of the system single chip and the optical mouse manufacture.

Description

technical field [0001] The present invention relates to a system single chip applied to an optical mouse, in particular to an integrated optical sensing array and capable of distinguishing the switch state of multiple buttons with less input and output pins than the number of switches, so as to optimize the total number of pins optical mouse system-on-a-chip. Background technique [0002] The optical mouse is one of the most important components in the human-machine interface of a modern computer system, and it can be constructed together with the monitor screen in the computer system to form a visual interface that conforms to the user's intuition. The function of the optical mouse is realized by the optical positioning and the control of the button / roller. Optical positioning is used to detect the displacement of the optical mouse itself to drive the cursor on the screen. In addition, the optical mouse is also provided with a plurality of switches, and the user clicks / pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/038
Inventor 庄乔栋庄永顺
Owner SUNPLUS INNOVATION TECH