MDCP: Patent Abstact US06138101: Method of encoding digital data

US06138101 Method of encoding digital data

Assignee Sharp Corporation

Assign./Filed Oct. 24, 2000/ Dec. 4, 1997

Inventors Fujii; Osamu

Summary Improvement to ATRAC which allows a more flexible interpretation of "minimum limit of audibility" depending upon the signal characteristics.

Abstract The method of encoding digital data in the present invention enables change of minimum limit of audibility characteristics and/or masking characteristics, which are usually set on the basis of the aural-psychological characteristics of persons with typical hearing, thus changing the allocation of quantized bits to each frequency band and allowing selection of a sound quality which accords with the listener's hearing. The present invention is suitable for ATRAC, a method for compressed encoding for mini-discs.

US06138101	Method of encoding digital data
Assignee	Sharp Corporation
Assign./Filed	Oct. 24, 2000/ Dec. 4, 1997
Inventors	Fujii; Osamu
Summary	Improvement to ATRAC which allows a more flexible interpretation of "minimum limit of audibility" depending upon the signal characteristics.
Abstract	The method of encoding digital data in the present invention enables change of minimum limit of audibility characteristics and/or masking characteristics, which are usually set on the basis of the aural-psychological characteristics of persons with typical hearing, thus changing the allocation of quantized bits to each frequency band and allowing selection of a sound quality which accords with the listener's hearing. The present invention is suitable for ATRAC, a method for compressed encoding for mini-discs.