Title :
A 5mW MPEG4 SP encoder with 2D bandwidth-sharing motion estimation for mobile applications
Author :
Lin, Chia-Ping ; Tseng, Po-Chih ; Chiu, Yao-Ting ; Lin, Siou-Shen ; Cheng, Chih-Chi ; Fang, Hung-Chi ; Chao, Wei-Min ; Chen, Liang-Gee
Author_Institution :
Nat. Taiwan Univ., Taipei
Abstract :
A 5mW MPEG4 SP encoder is implemented on a 7.7mm2 die in 0.18mum CMOS technology. It encodes CIF 30frames/s in real-time at 9.5MHz using 5mW at 1.3V and VGA 30frames/s at 28.5MHz uses 18mW at 1.4V. This chip employs a 2D bandwidth-sharing ME design, content-aware DCT/IDCT, and clock gating techniques to minimize power consumption
Keywords :
CMOS integrated circuits; discrete cosine transforms; mobile communication; motion estimation; video coding; 0.18 micron; 1.3 V; 1.4 V; 18 mW; 28.5 MHz; 2D bandwidth-sharing; 9.5 MHz; CMOS technology; MPEG4 SP encoder; VGA; clock gating techniques; content-aware DCT/IDCT; mobile applications; motion estimation; real-time; Application software; Bandwidth; CMOS logic circuits; Computer buffers; Discrete cosine transforms; Encoding; Energy consumption; MPEG 4 Standard; Motion estimation; Random access memory;
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0079-1
DOI :
10.1109/ISSCC.2006.1696217
