Title:
情報信号を処理するためのシステム
Document Type and Number:
Japanese Patent JP4726299
Kind Code:
B2
Abstract:
A system for processing an information signal comprises a system (1) for scrambling the information signal and at least one system (2) for descrambling the scrambled information signal. The scrambling system (1) comprises means (3,6) for analysing the entropy distribution of the information signal, means (5,6,7,9) for scrambling the information signal in dependence on the entropy distribution of the information signal to provide a scrambled information signal having an entropy distribution corresponding with the entropy distribution of the information signal and means (11) for compressing the scrambled information signal. The descrambling system (2) comprises means (14) for decompressing the compressed scrambled information signal and means (16,19,21,22,24) for descrambling the scrambled information signal to provide the information signal.
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Inventors:
Andrew Augustin Weiss
Gerald Johann Decker
Gerald Johann Decker
Application Number:
JP2000587535A
Publication Date:
July 20, 2011
Filing Date:
December 07, 1999
Export Citation:
Assignee:
Irdet Be Fee
International Classes:
H04L9/22; H04N5/91; G09C1/00; G09C5/00; G10L19/00; G10L19/018; G11B20/10; H04N5/92; H04N7/08; H04N7/081; H04N7/167
Domestic Patent References:
| JP61012186A | ||||
| JP9205638A | ||||
| JP8288940A |
Other References:
純国産暗号方式登場!!BOS暗号システム実証実験始動,CardWave 第9巻 第10号,日本,株式会社シーメディア,1996年,第9巻
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Shinya Mitsuhiro
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Shinya Mitsuhiro