Title:
METHOD AND DEVICE FOR RECEIVING VARIABLE LENGTH CODING DATA
Document Type and Number:
Japanese Patent JP3952939
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To provide the constitution of a semi-disclosed content signal encoder which operates by securing a prescribed security level to the contents of an object to be encoded.
SOLUTION: By assigning a prescribed code word to each data value of the number of pieces of time-series data obtained by orthogonally converting supplied picture and sound signals, a variable length coding table 14 is obtained. Among the code word described in the variable length coding table, the number of the pieces of the time-series data is assigned as the same number and code words different to each other are exchanged to prepare an exchanged variable length coding table 15. A CPU 16 generates a coding selection signal for identifying which of the variable length coding table and the exchanged variable length coding table to use for performing variable length coding of a VLC device 121 and outputs it to a communication network with a compressed coding signal. Thus the constitution of the content signal encoder 10 is realized.
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Inventors:
Sugawara, Takayuki
Nishitani, Katsuyoshi
Iba, Wataru
Nishitani, Katsuyoshi
Iba, Wataru
Application Number:
JP2002000344082
Publication Date:
May 11, 2007
Filing Date:
November 27, 2002
Export Citation:
Assignee:
VICTOR CO OF JAPAN LTD
International Classes:
H03M7/42; H04N7/26; G10L11/00; G10L19/00; H04N1/387; H04N7/08; H04N7/081; H04N7/16; H04N7/24; H03M7/42; H04N7/26; G10L11/00; G10L19/00; H04N1/387; H04N7/08; H04N7/081; H04N7/16; H04N7/24; (IPC1-7): H03M7/42; G10L11/00; G10L19/00; H04N1/387; H04N7/08; H04N7/081; H04N7/16; H04N7/24
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