A new approach of group-based VLC codec system

Bai-Jue Shieh, Terng-Yin Hsu, Chen-Yi Lee
2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353)  
In this paper, the algorithm of a VLC codec system with new group-based approach is presented. Based on the proposed codeword grouping and symbol memory mapping, the groupsearching scheme and codec processes are completed by applying numerical properties and arithmetic operations to codewords and symbol addresses. The memory requirement of encoder is reduced by a novel symbol-converting scheme. Therefore, the programmable coding table and symbol representation can be achieved. Based on
more » ... systems, an architecture design that performs concurrent VLC codec processes with constant symbol rate is presented. Simulation results show IOOMsps with 100MHz-clock for both encodingldecoding procedures can be achieved. As a result, it is suitable for those applications that require codec processes simultaneously, such as videoconferencing, and high throughput systems, such as HDTV.
doi:10.1109/iscas.2000.858825 dblp:conf/iscas/ShiehHL00 fatcat:76pep47zdnhdlkvv7zpgiplyji