Title :
MPEG2 video decoder and AC-3 audio decoder LSIs for DVD player
Author :
Yasuda, M. ; Nishio, T. ; Toyokura, M. ; Kawamura, A. ; Fujiwara, M. ; Akiyama, T.
Author_Institution :
Syst. LSI Dev. Center, Matsushita Electr. Ind. Co. Ltd., Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
We have developed the MPEG2 video decoder and the AC-3 audio decoder LSIs for the DVD player. These decoder LSIs together with single 16 Mbit SDRAM and D/A converters realize the audio/video processing unit with a small number of components for the DVD player. The video decoder LSI adopts the RISC controller to control the dedicated processing hardware cores and a design to integrate the frame memory and bitstream buffers into a single external memory. The audio decoder LSI adopts a 24-bit fixed point DSP core and the dedicated AC-3 accelerator circuit to reduce the amount of software processing in the AC-3 audio decoding
Keywords :
DRAM chips; audio coding; code standards; decoding; digital signal processing chips; digital television; digital-analogue conversion; large scale integration; reduced instruction set computing; telecommunication standards; video coding; video discs; 16 Mbit; 24 bit; 24-bit fixed point DSP core; AC-3 accelerator circuit; AC-3 audio decoder LSI; AC-3 audio decoding; D/A converters; DVD player; MPEG2 video decoder LSI; RISC controller; SDRAM; audio/video processing unit; bitstream buffers; dedicated processing hardware cores; frame memory; single external memory; software processing; Auditory displays; Computer architecture; DVD; Decoding; Electronics industry; Industrial electronics; Large scale integration; SDRAM; Toy industry; Transform coding;
Journal_Title :
Consumer Electronics, IEEE Transactions on
