A method for implementing a videophone system between Internet TV set-top boxes
A technology of videophone system and network TV, applied in TV, transmission system, two-way working system, etc., can solve problems such as limitations, and achieve the effect of perfect function, good expansibility and reasonable application.
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[0025] 1. System structure:
[0026] The present invention is research on videophone on P2P IPTV terminal. Its functional modules are generally composed of the following six parts: audio collection and playback module, audio codec module, video capture and display module, video codec module, system control module and network transmission module. Such as figure 1 shown.
[0027] Below we introduce each module in detail:
[0028] Audio collection and playback module: the voice collection and playback module is an essential component of the embedded video system. This module completes the audio signal acquisition, playback and other functions. It is mainly composed of low-power stereo codec chip TLV320AIC33 produced by TI. The chip has multiple input ports and multiple programmable output ports. The register-based power control module makes the system consume only 14mw when playing in the 48KHz DAC loop. Extremely low power consumption makes it especially suitable for embe...
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