Audio and video transmission system and method for video telephone

Abstract

The invention discloses an audio and video transmission system and a method of a video phone comprising: connecting an intelligent mobile phone supporting a video phone function with a computer through a USB interface, and outputting the video phone audio and video data to a computer end to process and play. Based on a standard video telephone scheme, a default audio and video output module is transferred to a computer end, so that an audio and video output device on a mobile terminal is in a turnoff or a standby state during the video communication process, thereby saving charge consumption for the mobile device. At the same time, because the mobile device and the computer are in a connection state, the mobile device can also get charge supplement through the USB interface, and greatly prolongs a continuous communication time of the video communication. The beneficial effects of invention are that the output device with more charge consumption during the video communication process is in the turnoff or standby state through changing an output current direction of the audio and video data, the corresponding output data is processed and displayed by the computer end, thereby effectively prolonging the communication time of the video telephone.

Description

technical field [0001] The present invention relates to the field of mobile communication, and specifically refers to that a smart phone supporting a video phone function is connected to a computer through a USB (the abbreviation of the English Universal Serial Bus, and the Chinese meaning is "Universal Serial Bus") interface, and the audio and video data of the video phone are transmitted to Computer-side processing and playback. Background technique [0002] With the advent of the era of third-generation mobile communication technology, video calls through mobile communication networks have become a reality, enabling users to see each other's video images more intuitively while enjoying high-quality voice communication services, making the call process more intuitive and humane change. [0003] Based on the third generation mobile communication network: CDMA2000 (English abbreviation Code Division MuitipleAccess 2000, Chinese meaning is "Code Division Multiple Access"), T...

AI Technical Summary

Problems solved by technology

However, since video telephony uses more system resources, such as video input and output devices, audio input and output devices, and modems, the large current required for these devices to work at the same time is a great burden for mobile devices. The battery capacity, which is one of the performance bottlenecks of mobile devices, is not enough to support long video calls

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