Displacement detecting device and power saving method thereof

A technology of displacement detection and power saving method, which is applied in the direction of measuring device, data processing power supply, electrical digital data processing, etc., to achieve the effect of reducing power consumption

Active Publication Date: 2014-09-17
PIXART IMAGING INC
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  • Abstract
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  • Claims
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Problems solved by technology

However, since the light source generator and image sensor still need to operate at the lowest operating current, long-term use will still cause a lot of power consumption

Method used

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  • Displacement detecting device and power saving method thereof
  • Displacement detecting device and power saving method thereof
  • Displacement detecting device and power saving method thereof

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Experimental program
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Embodiment Construction

[0027] [One embodiment of displacement detecting device]

[0028] Please also refer to Figure 1A and Figure 1B , Figure 1A is a functional block diagram illustrating a displacement detection device according to an embodiment of the present invention; Figure 1B It is a schematic diagram illustrating a displacement detection device according to an embodiment of the present invention when performing distance detection. Such as Figure 1A and Figure 1B As shown, the displacement detection device 1 includes a displacement sensing module 10, a distance sensing module 11, an input module 12, a processing module 13, a storage module 14 and a transmission module 15, wherein the displacement sensing module 10, the distance sensing module 11, the input The module 12 , the storage module 14 and the transmission module 15 are all electrically connected to the processing module 13 . In practice, the displacement detection device 1 is an input device of a host device (such as a deskt...

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Abstract

The present invention discloses a displacement detecting device including a displacement sensing module, an input module, a distance sensing module, and a processing module, and a power saving method thereof. The processing module is electrically connected to each module. The input module is used to supply non-contact operation. The distance sensing module is used to detect the distance between a body and the displacement detecting device, and then produces a sensing value. The processing module selectively control the displacement sensing module and the input module to be turned on or turned off according to the sensing result of the distance sensing module. The displacement detecting device turns on the displacement sensing module when the sensing value is less than a first default value, and turns on the input module and turns off the displacement sensing module when the sensing value is greater than a second default value.

Description

technical field [0001] The present invention relates to a displacement detection device, and in particular to a displacement detection device with power saving function and a power saving method thereof. Background technique [0002] In recent years, in order to improve the accuracy of the operation of the host device (such as a desktop computer or a notebook computer), the optical mouse has replaced the traditional mechanical mouse, and in order to increase the convenience of the mouse operation, the wireless optical mouse is widely used. ground use. [0003] However, the components in the wireless optical mouse (such as the light source generator, image sensor, wireless transceiver and controller) all need to be driven by their own batteries, if the components in the wireless optical mouse are continuously enabled If it works, it will greatly increase the power consumption of the battery inside the wireless optical mouse, thereby shortening the battery life cycle (also kn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0354G06F1/32
CPCG01D1/00G06F3/00G06F1/3231G06F1/3259Y02D10/00Y02D30/50
Inventor 陈俊玮谢孟寰
Owner PIXART IMAGING INC
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