Title :
A video digital signal processor with a vector-pipeline architecture
Author :
Toyokura, M. ; Okamoto, K. ; Kodama, H. ; Ohtani, A. ; Araki, T. ; Aono, K.
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Abstract :
A description is given of a 2-GOPS, 60-MIPS video digital signal processor ULSI with a vector-pipeline architecture for video CODEC systems, called the vector digital signal processor (VDSP). The VDSP uses 0.8- mu m CMOS technology and contains a discrete cosine transform (DCT) core as a special processing unit. The vector-pipeline (VP) architecture allows input vector data to be processed in various pipeline configurations. The VDSP performs motion vector detection, motion compensation, DCT/IDCT, loop filtering, quantization/inverse quantization, and variable length coding/decoding specified in CCIT H.261. The encoder and the decoder specified in the subset including the applications of CCIT H.261 (full-CIF mode at 15 frame/s or more, 64 kb/s) can be realized with only two VDSP chips, and only one VDSP chip, respectively, and thus have twice the performance of prior digital signal processors.<>
Keywords :
CMOS integrated circuits; VLSI; computer architecture; decoding; digital signal processing chips; discrete cosine transforms; encoding; image processing equipment; pipeline processing; video signals; 0.8 micron; 60 MIPS; 64 kbit/s; CCIT H.261; CMOS technology; DCT core; ULSI; discrete cosine transform; inverse quantization; loop filtering; motion compensation; motion vector detection; variable length coding; vector DSP; vector-pipeline architecture; video digital signal processor; CMOS process; CMOS technology; Decoding; Digital signal processors; Discrete cosine transforms; Motion detection; Pipelines; Quantization; Ultra large scale integration; Video codecs;
Conference_Titel :
Solid-State Circuits Conference, 1992. Digest of Technical Papers. 39th ISSCC, 1992 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0573-6
DOI :
10.1109/ISSCC.1992.200416
