JPS61139069U - - Google Patents
Info
- Publication number
- JPS61139069U JPS61139069U JP2146785U JP2146785U JPS61139069U JP S61139069 U JPS61139069 U JP S61139069U JP 2146785 U JP2146785 U JP 2146785U JP 2146785 U JP2146785 U JP 2146785U JP S61139069 U JPS61139069 U JP S61139069U
- Authority
- JP
- Japan
- Prior art keywords
- huffman code
- modified huffman
- memory
- state transition
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims description 5
- 230000006837 decompression Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 101000800590 Homo sapiens Transducin beta-like protein 2 Proteins 0.000 description 1
- 102100033248 Transducin beta-like protein 2 Human genes 0.000 description 1
Description
第１図は本考案一実施例モデイフアイド・ハフ
マン符号伸張装置のブロツク構成図。第２図は本
考案のモデイフアイド・ハフマン符号伸張装置の
フローチヤート。第３図はモデイフアイド・ハフ
マン符号の白ランの二進トリーを示す図。第４図
はモデイフアイド・ハフマン符号の黒ランの二進
トリーを示す図。
１０…イメージメモリ装置、１１…モデイフア
イド・ハフマン符号データメモリ、１２…遷移状
態値表（ＴＢＬ１）メモリ、１３〜１４…ラン長
表（ＴＢＬ２，２′，２″）メモリ、２０…メモ
リアクセスコントローラ、２１…演算部。
FIG. 1 is a block diagram of a modified Huffman code expansion device according to an embodiment of the present invention. FIG. 2 is a flowchart of the modified Huffman code expansion device of the present invention. FIG. 3 is a diagram showing a white run binary tree of a modified Huffman code. FIG. 4 is a diagram showing a black run binary tree of a modified Huffman code. 10... Image memory device, 11... Modified Huffman code data memory, 12... Transition state value table (TBL1) memory, 13-14... Run length table (TBL2, 2', 2'') memory, 20... Memory access controller, 21...Arithmetic unit.
Claims (1)
を格納する第一のメモリと、 白ライン及び黒ランの二進トリーの節を示す状
態遷移値と上記モデイフアイド・ハフマン符号デ
ータの一部分とからなる作成データをアドレスと
して次の状態遷移値とそのモデイフアイド・ハフ
マン符号データの一部分に対するラン長とを格納
する第二のメモリと、 上記第二のメモリからの状態遷移値および上記
第一のメモリからのモデイフアイド・ハフマン符
号データの一部分を取込み演算して作成データを
上記第二のメモリに出力して次の状態遷移値とラ
ン長とを得る制御手段と を備えたモデイフアイド・ハフマン符号伸張装置
において、 上記一部分が複数ビツトを単位とすることを特
徴とするモデイフアイド・ハフマン符号伸張装置
。[Claims for Utility Model Registration] A first memory for storing input modified Huffman code data, state transition values indicating nodes of a binary tree of white lines and black runs, and a portion of the modified Huffman code data. a second memory that stores the next state transition value and the run length for a portion of the modified Huffman code data using the created data consisting of as an address; and the state transition value from the second memory and the first memory. In a modified Huffman code decompression device, the modified Huffman code decompressing device is provided with a control means for obtaining a next state transition value and run length by taking in a part of the modified Huffman code data from the computer and outputting the generated data to the second memory. . A modified Huffman code decompression device, characterized in that the above part has a unit of multiple bits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2146785U JPS61139069U (en) | 1985-02-18 | 1985-02-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2146785U JPS61139069U (en) | 1985-02-18 | 1985-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61139069U true JPS61139069U (en) | 1986-08-28 |
Family
ID=30512889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2146785U Pending JPS61139069U (en) | 1985-02-18 | 1985-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61139069U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755668A (en) * | 1980-09-22 | 1982-04-02 | Nippon Telegr & Teleph Corp <Ntt> | Decoding method for run-length code |
| JPS5799083A (en) * | 1980-12-12 | 1982-06-19 | Hitachi Ltd | Coding method |
| JPS5937773A (en) * | 1982-08-26 | 1984-03-01 | Canon Inc | Run-length coding and decoding device |
-
1985
- 1985-02-18 JP JP2146785U patent/JPS61139069U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5755668A (en) * | 1980-09-22 | 1982-04-02 | Nippon Telegr & Teleph Corp <Ntt> | Decoding method for run-length code |
| JPS5799083A (en) * | 1980-12-12 | 1982-06-19 | Hitachi Ltd | Coding method |
| JPS5937773A (en) * | 1982-08-26 | 1984-03-01 | Canon Inc | Run-length coding and decoding device |
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