New approach of group-based VLC codec system

Bai Jue Shieh*, Terng-Yin Hsu, Chen-Yi Lee

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


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 group-searching 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 MPEG-like systems, an architecture design that performs concurrent VLC codec processes with constant symbol rate is presented. Simulation results show 100 Msps with 100 MHz-clock for both encoding/decoding 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.

Original languageEnglish
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - 1 Jan 2000
EventProceedings of the IEEE 2000 International Symposium on Circuits and Systems - Geneva, Switz
Duration: 28 May 200031 May 2000

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