Method of synchronously playing image data and speech data in cell phone

A technology for sound data and image data, which is applied in the field of realizing the synchronous playback of independent image data and independent sound data, and can solve the problems of low cost and no sound effect.

Inactive Publication Date: 2005-01-12
HISENSE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the camera phone can only record and play continuous image files without sound effects, and provides a method for adding sound processing to the mobile phone and synchronously playing the image dat

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  • Method of synchronously playing image data and speech data in cell phone
  • Method of synchronously playing image data and speech data in cell phone
  • Method of synchronously playing image data and speech data in cell phone

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Embodiment Construction

[0016] Such as figure 1 Shown: The hardware related to the realization of the invention mainly includes a microprocessor, a memory, a digital signal processor DSP, a voice decoder, an LCD display, a camera, a keyboard, a microphone and a speaker. When collecting image data, the camera needs to collect external data and transmit the data to the DSP. The DSP displays the data on the LCD display by setting the corresponding register. When receiving the start recording command, the DSP will change the value of the relevant register and start collecting image data And it is stored in the buffer area built in DSP, and the collection, playback and display of image data rely on the interaction of DSP, camera and LCD display. Among them, the DSP chip plays a core role, which can directly control the LCD display, transfer the data in the DSP buffer area directly to the LCD buffer area and display image data, and the ModemCPU interface controls and coordinates the interaction between the DS...

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Abstract

The method is used in an electronic control system composed of the key-press, the display, the video cameral, the DSP, the micro phone, the speaker, the audio codes, the MPU and the memory. It includes following steps: the video cameral module collects image data and at same time sends a instruction to the audio collection module for starting audio collection; in the process of collection the image data positioning label and the audio data positioning label are set at fixed time, when the collection of image is finished the video cameral module sends a instruction to the audio module for stopping the collection of audio, the image data and audio data are separately saved in the memory; the mobile phone display the audio and video file, the video camera reads the image and audio data from memory and sends them into the image buffer and audio buffer; the image is displayed on the display screen and the sound is outputted by the speaker through decode and D/A conversion.

Description

Technical field [0001] The invention belongs to the technical field of mobile communication terminals, and more specifically relates to a method for realizing synchronous playback of independent image data and independent sound data in the camera function of a mobile phone. Background technique [0002] Currently, mobile phones that support camera functions can be divided into two ways to play files. One method is to record and play continuous picture files through the camera and digital signal processor DSP chip to achieve the effect of animation. No sound data is collected and processed, so the file playback in this way is a silent animation. The other is for image files with standard formats for the stored files, such as MPEG4, WMV, WMA, WAV, etc., which can be achieved by directly calling standard library functions during playback, but the disadvantage of this method is that the storage space is large. The processing time is longer and the cost is higher. Summary of the inve...

Claims

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Application Information

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IPC IPC(8): H04M1/02H04M1/72433H04M1/72439
Inventor 田宝华张琨潘艾明
Owner HISENSE
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