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Title:
さまざまな符号クラスの符号化および復号化への応用を有するインプレース変換
Document Type and Number:
Japanese Patent JP5231218
Kind Code:
B2
Abstract:
In an encoder for encoding symbols of data using a computing device having memory constraints, a method of performing a transformation comprising loading a source block into memory of the computing device, performing an intermediate transformation of less than all of the source block, then replacing a part of the source block with intermediate results in the memory and then completing the transformation such that output symbols stored in the memory form a set of encoded symbols. A decoder can perform decoding steps in an order that allows for use of substantially the same memory for storing the received data and the decoded source block, performing as in-place transformations. Using an in-place transformation, a large portion of memory set aside for received data can be overwritten as that received data is transformed into decoded source data without requiring a similar sized large portion of memory for the decoded source data.

Inventors:
Ruby, Michael, Gee.
Shock Ray, M. Amin
Application Number:
JP2008516032A
Publication Date:
July 10, 2013
Filing Date:
June 12, 2006
Export Citation:
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Assignee:
Digital Fountain, Incorporated
International Classes:
H03M13/47; H03M13/15; H03M13/19
Domestic Patent References:
JP2000307435A
Foreign References:
WO2005041421A1
Other References:
W. L. Lee, et al., VLSI implementation for low density parity check decoder,Proceedings of the 8th IEEE International Conference on Elecctronics, Circuits and Systems, 2001. ICECS 2001,2001年 9月 2日,Vol.3,pp.1223-1226
Attorney, Agent or Firm:
Kurata Masatoshi
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Takashi Mine
Toshio Shirane
Sadao Muramatsu
Nobuhisa Nogawa
Kocho Chojiro
Naoki Kono
Katsu Sunagawa
Tetsuya Kazama
Katsumura Hiro
Shoji Kawai
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Takenori Masanori
Takuzo Ichihara
Yamashita Gen