Browsing by Author "Li, De-Wei"

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A 242mW, 10mm(2) 1080p H.264/AVC high profile encoder chip
(2008)
Lin, Yu-Kun
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Li, De-Wei
;
Lin, Chia-Chun
;
Kuo, Tzu-Yun
;
Wu, Sian-Jin
A 1080p high profile H.264 encoder is designed by the robust reusable silicon IP methodology and fabricated in a 0.13 mu m CMOS technology with an area of 10 mm(2) and 242mW at 145MHz. Compared to the state-of-the-art design targeted at 720p baseline, this design reduces 53.4% power and 46.7% area through parallelism enhanced throughput and cross stage sharing pipeline.
A 61 MHz 72K gates 1280x720 30FPS H.264 intra encoder
(2007)
Li, De-Wei
;
Ku, Chun-Wei
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Cheng, Chao-Chung
;
Lin, Yu-Kun
;
Chang, Tian-Sheuan
This paper presents an HD720p 30 frames per see H.264 intra encoder operated at 61MHz with just 72K gate count. We achieve the low cost and low operating frequency with the highly utilized variable pixel scheduling, and a modified three-step fast algorithm. Thus, the resulted design only needs half of operating frequency and reduces 30% of area cost compared to the previous HD720p intra encoder design.