A high-speed lossless embedded compression codec for high-end LCD applications

Due to the great evolution of LCD panel technology, the memory bandwidth of display media system is significantly increased. Its impact on system cost, EMI of transmission interface, and memory bandwidth almost dominates the performance of entire display media system. To eliminate this effect, a high-speed lossless embedded compression algorithm with pipelining and parallel VLSI architecture is proposed. With associated geometric-based probability model (AGPM), the compact coding flow is constructed by geometric-based binary code and content-adaptive Golomb-Rice code to achieve high-speed capability. The entire codec is implemented by TSMC 0.18-μm 1P6M CMOS technology with Artisan cell library. The processing capability of two-level parallelism achieves Full-HD 1080p@60Hz with RGB components, and the four-level parallelism can further support 120Hz double frame rate (DFR) technique for high-end LCD applications.