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Lempel–Ziv–Stac (LZS, or Stac compression) is a lossless data compression algorithm that uses a combination of the LZ77 sliding-window compression algorithm and fixed Huffman coding. It was originally developed by Stac Electronics for tape compression, and subsequently adapted for hard disk compression and sold as the Stacker disk compression software. It was later specified as a compression algorithm for various network protocols. LZS is specified in the Cisco IOS stack. == Standards == LZS compression is standardised as an INCITS (previously ANSI) standard.〔INCITS/ANSI X3.241-1994 - ''Data Compression Method – Adaptive Coding with Sliding Window for Information Interchange''〕 LZS compression is specified for various Internet protocols: * RFC 1967 – ''PPP LZS-DCP Compression Protocol (LZS-DCP)'' * RFC 1974 – ''PPP Stac LZS Compression Protocol'' * RFC 2395 – ''IP Payload Compression Using LZS'' * RFC 3943 – ''Transport Layer Security (TLS) Protocol Compression Using Lempel-Ziv-Stac (LZS)'' 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Lempel–Ziv–Stac」の詳細全文を読む スポンサード リンク
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