Title :
A single chip decompression LSI based on ATRAC for mini disc
Author :
Fuma, Masato ; Okamoto, Miyuki ; Kawahara, Keita ; Nagao, Fumiaki ; Matsui, Masaru
Author_Institution :
Sanyo Electr. Co. Ltd., Gifu, Japan
Abstract :
A single chip that decompresses the ATRAC (adaptive transform acoustic coding) used for mini disc has been developed. The authors outline how the low power consumption and high-precision calculation capability of this LSI were achieved. This LSI was developed by making an ideal compromise between lower power consumption and efficient high-precision calculation. Calculation precision has been enhanced due to 24-bit block-floating-point calculation, a customized calculation unit, and an error concealment function
Keywords :
data compression; encoding; large scale integration; transforms; video and audio discs; 24 bit; ATRAC; adaptive transform acoustic coding; audio compression; customized calculation unit; error concealment function; high-precision calculation; low power consumption; mini disc; single chip decompression LSI; Decoding; Digital signal processing; Encoding; Energy consumption; Frequency; Large scale integration; Psychology; Research and development; Sampling methods; Transform coding;
Journal_Title :
Consumer Electronics, IEEE Transactions on
