Title:
DATA PROCESSING SYSTEM
Document Type and Number:
Japanese Patent JP3681105
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a data processing system which can prevent the deteriora tion of information.
SOLUTION: A level shift processing part 20 bit-shifts inputted 24 bit audio data to a low order by two bits and outputs 26 bit digital data. Digital data of 26 bits, which are bit-shifted, are equalized through an equalization processing part 22 and subjected to an over-sampling processing for four times performed by an over-sampling processing part 24. Then, the resultant data are outputted to a ΣΔ modulation part 26. The ΣΔ modulation part 26 performs a ΣΔ modulation processing on digital data, which are over-sampled to generate 24 bit digital data of 24.
Inventors:
Tomohiko Ise
Application Number:
JP2000047054A
Publication Date:
August 10, 2005
Filing Date:
February 24, 2000
Export Citation:
Assignee:
Alpine Electronics Co., Ltd.
International Classes:
G11B20/10; G10L19/00; G10L19/02; H03M3/02; (IPC1-7): H03M3/02; G10L19/00; G11B20/10
Domestic Patent References:
| JP11017498A | ||||
| JP5235674A | ||||
| JP2000022550A |
Attorney, Agent or Firm:
Masahiko Amagai
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