Audio and video transmission system and method for video telephone

A video transmission system and video phone technology, applied in the field of smart phones, can solve the problem that the battery capacity is not enough to support long-term video calls, and achieve the effect of extending the call time

Inactive Publication Date: 2009-07-22
TECHFAITH INTELLIGENT HANDSET TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Audio and video transmission system and method for video telephone
  • Audio and video transmission system and method for video telephone

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Embodiment Construction

[0010] Embodiments of the present invention are described below with reference to the drawings. figure 1 It is a diagram of the audio and video transmission system of the video phone according to the embodiment of the present invention. The system mainly includes the following parts: mobile or fixed terminal 2 supporting video phone function, base station 1 providing access service for terminal 2, mobile terminal 3 supporting video phone function, base station 4 providing service for mobile terminal 3, via USB A computer terminal connected to the mobile terminal 3.

[0011] Among them, base station 1 and terminal 2 are connected by wired or wireless means (1), base station 3 and mobile device 4 are connected by wireless means (2), base station 3 and base station 4 are connected by an inter-base station network (3), terminal 4 and the computer terminal Connect via USB (4).

[0012] The video phone connection between the terminal 2 and the terminal 4 is realized through the ba...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/14
Inventor 赵剑
Owner TECHFAITH INTELLIGENT HANDSET TECH BEIJING
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