Patent
Data compression using run length encoding and statistical encoding
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TLDR
In this paper, a run length encoding scheme using a flag byte symbol which is disposed between a character signal and a running length symbol was proposed. But this scheme was not suitable for the use of large numbers of characters.Abstract:
A compression device which uses both run length encoding and statistical encoding. The run length encoding scheme uses a flag byte symbol which is disposed between a character signal and a run length symbol. The statistical encoding process uses multiple statistical encoding tables which are selected based upon previously occurring data.read more
Citations
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Data compression apparatus and method
TL;DR: An apparatus and method for converting an input data character stream into a variable length encoded data stream in a data compression system is described in this article. But this method requires the input data characters to be stored in the history array.
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References
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Apparatus and method for compressing data signals and restoring the compressed data signals
TL;DR: In this article, a search tree is constructed from the input data such that as each new segment is parsed, one new internal node of the tree is created from a leaf and new leaves are defined, one for each symbol encountered by the encoder plus an additional branch to represent all potential but unseen symbols.
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Method and apparatus for information storage and retrieval
TL;DR: In this paper, an information storage and retrieval system and process comprising a set of stored information bearing records, each of the records being disposed at a predetermined address or location is described.
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Dual mode facsimile coding system and method
TL;DR: In this article, the first symbol encoungered is placed in a memory or library and as each new symbol is detected, it is compared with each entry of the library and if the comparison is within a predetermined tolerance, a library identification code representing the symbol is generated and transmitted along with the symbol location coordinates.
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Data compaction system and apparatus
TL;DR: In this article, a data compaction system and apparatus is described, which, in the preferred embodiment, includes a high speed compaction controller utilizing both read only storage and read-write storage.
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Technique for encoding multi-level signals
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