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Electrifying circuit on mobile terminal camera

A mobile terminal and camera technology, applied in the field of cameras, can solve problems such as prolonging the time to market of products and increasing R&D investment, and achieve the effects of shortening project cycle, reducing R&D costs and enhancing compatibility

Inactive Publication Date: 2009-09-16
WINGTECH COMM
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the mobile phones on the market only support one type of pixel camera, and the mobile phone models with different camera pixels are generally different, which requires matching different motherboards according to different pixels. Increased R&D investment, prolonging the time to market

Method used

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  • Electrifying circuit on mobile terminal camera
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Embodiment Construction

[0021] The specific implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples, but the protection scope of the present invention should not be limited thereby.

[0022] figure 1 It is a schematic diagram of the camera module system of the mobile terminal. The camera system of the mobile terminal mainly includes a multimedia processing module 101 , a camera module 102 and a power module 103 . Wherein the camera is connected to the multimedia processing module through a CCIR (Consultative Committee Intemathnal Radio) bus. The multimedia processing module 101 may be a baseband chip or an external multimedia processor. PWON and CAM_PWDN are control signals from the baseband chip or an external multimedia processor. PWON is the camera power enable signal, and CAM_PWDN is the power-down control signal of the camera module. PWON and CAM_PWDN are control signals from the baseband chip or an e...

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Abstract

The invention discloses an electrifying circuit on a mobile terminal camera, wherein a camera module comprises a front camera compatible with 0.16 / 0.30 / 1.30 megapixels and a back camera compatible with 0.30 / 1.30 / 2.00 megapixels, and a power supply module comprises a first LDO power supply, a second LDO power supply and a DC-DC power supply with adjustable voltage; both the front camera and the back camera comprise three paths of power supplies, and both an analog power supply AVDD and an I / O power supply DOVDD are provided by the second LDO power supply; a digital power supply DVDD of the front camera is provided by the first LDO power supply; when the back camera is of 0.30 / 1.30 megapixels, the digital power supply DVDD is provided by the first LDO power supply; and when the back camera is of 2.00 / 3.00 megapixels, the digital power supply DVDD is provided by the DC-DC power supply. With the electrifying circuit on the mobile terminal camera, cameras with different pixels can be configured on a mainboard of a same mobile phone freely according to different requirements.

Description

technical field [0001] The invention relates to a camera of a mobile terminal, in particular to a power-on circuit of the camera of a mobile terminal. Background technique [0002] With the increasing development and popularization of mobile terminals, cameras have almost become standard configurations of mobile terminals. In my country's low-end market, such as the vast rural market, mobile phones have rich functions and low prices compared with digital cameras, and their camera and video functions even replace digital cameras to a certain extent. It’s just that due to the difference in camera needs of users, the pixel requirements of the camera are also different, and the circuit design needs to be targeted to a certain extent. [0003] At present, most of the mobile phones on the market only support one type of pixel camera, and the mobile phone models with different camera pixels are generally different, which requires matching different motherboards according to differ...

Claims

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Application Information

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IPC IPC(8): H04M1/02H04N5/225
Inventor 张义刚
Owner WINGTECH COMM
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