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Abstract

A wireless video/audio data transmission system for adjusting Phase-Locked-Loop (PLL) parameters to synchronize the rate of clock reference transmission in a decoder module is provided. The decoder requires no external DDR memory for performing frame buffering, and instead, an on-chip internal SRAM memory is provided as the frame buffer. Frame images are processed under compressed domain at the decoder module using the SRAM. Synchronization of reference frequency in decoder with the reference frequency in encoder allows for the SRAM to be utilized. Timing information for synchronizing decoding of the video/audio data is defined by timestamps sent at set interval. PLL is used for adjusting frequency of the decoder or encoder module. The PLL is adjusted up when reference frequency of encoder module is higher than reference frequency of decoder module and the corresponding timestamp value at encoder module is lower in comparison to corresponding timestamp value, and vice versa.

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