1484841-A1 is referenced by 12 patents.

A down sampler 13 down samples a digital signal in the sampling frequency thereof from 96 kHz to 48 kHz on a frame-by-frame basis. The converted signal is compression encoded and output as a main code Im. An up sampler 16 converts a partial signal corresponding to the main code Im to a signal having the original sampling frequency 96 kHz, for example. An error signal between the up sampled signal and an input digital signal is generated. An array converting and encoding unit 18 array converts bits of sample chains of the error signal, thereby outputting an error code Pe. On a decoding side, a high fidelity reproduced signal is obtained based on the main code Im and the error code Pe, or a reproduced signal is obtained based on the main code Im only.

Title
Digital signal encoding method, decoding method, encoding device, decoding device, digital signal encoding program, and decoding program
Application Number
EP20030708527 20030310
Publication Number
1484841 (A1)
Application Date
March 10, 2003
Publication Date
December 8, 2004
Inventor
Mori Takeshi
JP
Ikeda Kazunaga
JP
Jin Akio
JP
Moriya Takehiro
JP
Assignee
Nippon Telegraph & Telephone
JP
IPC
G10L 19/00
H03M 07/30
H04N 07/26
G10L 19/00
G06T 09/00
H04N 07/26
G06T 09/00
G10L 19/00
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