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Mobile terminal apparatus and method for implementing pick-up head function

A mobile terminal and camera technology, applied in image communication, color TV parts, TV system parts, etc., can solve the problems of high cost, high pressure, complex hardware structure, etc., achieve low price, simplify hardware structure, cost reduction effect

Inactive Publication Date: 2009-07-01
WINGTECH COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of design structure has high cost and complex hardware structure, which puts more and more pressure on multimedia mobile phones, especially the low-end market.

Method used

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  • Mobile terminal apparatus and method for implementing pick-up head function
  • Mobile terminal apparatus and method for implementing pick-up head function
  • Mobile terminal apparatus and method for implementing pick-up head function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: the following combination Figure 1 to Figure 7 Described in detail, based on the mobile device without the multimedia processing chip structure above, the method for realizing the preview function of the camera, the specific process is as follows figure 2 shown, including the following steps:

[0034] 1. The baseband processor initializes the hardware of the image sensor, specifically including the following steps:

[0035] a) The baseband processor provides the main clock signal for the image sensor through the XOUT interface, and the frequency is usually in the range of 24M-32M;

[0036] b) The baseband processor provides 2.8V digital voltage and 1.8V analog voltage for the image sensor through the SI interface, try to ensure a separate low-dropout voltage regulator (LDO) power supply, and ensure that the power supply interference and peak-to-peak value are within an acceptable range;

[0037] c) According to the selected image sensor output, set the...

Embodiment 2

[0066] Embodiment 2: Realize the photographing function of camera by above-mentioned device, its method flow step is identical with embodiment 1, repeats no more, only in interrupt processing operation iii and baseband processor to the data processing after sampling, namely step 6, implement with Example 1 is different: for the interrupt processing operation iii, since the image soft codec controller converts the YUV format into JPG format, only a simple transposition action is performed in the interrupt processing flow to obtain the YUV format data; for the data processing step 6, Specific process such as Figure 8 display, including the following steps:

[0067] a) After the frame interruption arrives, the entire frame YUV image sampling is completed, and necessary inspection operations are performed;

[0068] b) The data is sent to the codec buffer area;

[0069] c) Perform encoding operation (YUV422->JPG), and set the corresponding encoding quality factor (Qfactor);

[...

Embodiment 3

[0074] Embodiment 3: Realize the photographing function of camera by above-mentioned device, its method flow step and embodiment 2 are identical, repeat no more, but need to add the step of audio part on this basis, comprise audio sampling, audio processing, and generate video file , involving step 5 and step 6: in step 5, the baseband processor performs recording and sampling audio data through a soft encoder in addition to sampling image information by the image processor; the steps of step 6 are as follows Figure 9 shown, including the following steps:

[0075] a) After the frame interrupt arrives, the whole frame YUV image sampling is completed, and the necessary inspection operation is performed

[0076] b) The image data flow is divided into two parts, the echo process and the image and audio encoding process, which are sent to the corresponding buffer area respectively

[0077] c) Echoing process, YUV data is converted into RGB data and sent to the screen display buff...

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Abstract

The invention relates to a mobile terminal device for realizing the camera function, and a method thereof. The device and the method aim to solve the problem that the baseband chip takes the place of finishing the coding and the decoding functions of the video signal of a multimedia processor on the premise that the function and the quality of the multimedia are not affected. The invention performs data acquisition and processing by controlling a sensor through a baseband processor, realizes the function of the professional multimedia chip, simplifies the hardware structure, greatly reduces the cost without image quality loss and multimedia function loss, facilitates the profit maximization of the products and is also beneficial for the users to enjoy the multimedia service with comparable quality at a lower price.

Description

technical field [0001] The invention relates to a mobile terminal device and a method thereof for realizing camera functions. Background technique [0002] Nowadays, wireless communication technology is widely used in people's daily life, and mobile phone terminals are also popularized because of the convenience of use. With the development of the economy and the advancement of science and technology, people's living standards have been greatly improved, and the multimedia technology of low-end mobile phone terminals can no longer meet people's needs. Multimedia mobile phones with music and video functions are more and more sought after by people. At present, the hardware design of mainstream multimedia mobile phones generally adopts the traditional baseband processing chip (BaseBand Processor, BB for short) + multimedia processing chip (DSP, Digital Signal Processor, ie digital signal chip) hardware structure to realize. This kind of design structure has higher cost and mo...

Claims

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Application Information

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IPC IPC(8): H04N5/225H04N5/232H04N1/41H04N5/928G09G3/36
Inventor 李华军王峥朱云晓
Owner WINGTECH COMM
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