NL190094C - DEVICE FOR DECODING A VARIABLE LENGTH CODE PROPOSED BY A CODE TREE. - Google Patents
DEVICE FOR DECODING A VARIABLE LENGTH CODE PROPOSED BY A CODE TREE.Info
- Publication number
- NL190094C NL190094C NL8104352A NL8104352A NL190094C NL 190094 C NL190094 C NL 190094C NL 8104352 A NL8104352 A NL 8104352A NL 8104352 A NL8104352 A NL 8104352A NL 190094 C NL190094 C NL 190094C
- Authority
- NL
- Netherlands
- Prior art keywords
- decoding
- code
- variable length
- proposed
- tree
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
- H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
- H03M7/425—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory for the decoding process only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
- H03M7/4025—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code constant length to or from Morse code conversion
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Facsimile Image Signal Circuits (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13186280 | 1980-09-22 | ||
JP13186280A JPS5755668A (en) | 1980-09-22 | 1980-09-22 | Decoding method for run-length code |
Publications (3)
Publication Number | Publication Date |
---|---|
NL8104352A NL8104352A (en) | 1982-04-16 |
NL190094B NL190094B (en) | 1993-05-17 |
NL190094C true NL190094C (en) | 1993-10-18 |
Family
ID=15067855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8104352A NL190094C (en) | 1980-09-22 | 1981-09-22 | DEVICE FOR DECODING A VARIABLE LENGTH CODE PROPOSED BY A CODE TREE. |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5755668A (en) |
DE (1) | DE3137704C2 (en) |
FR (1) | FR2490899A1 (en) |
GB (1) | GB2084366B (en) |
NL (1) | NL190094C (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5937773A (en) * | 1982-08-26 | 1984-03-01 | Canon Inc | Run-length coding and decoding device |
JPS59225676A (en) * | 1983-06-06 | 1984-12-18 | Usac Electronics Ind Co Ltd | Generating circuit of bit length variable code |
JPS6041883A (en) * | 1983-08-17 | 1985-03-05 | Fujitsu Ltd | Decoding system of coded data |
JPS6098768A (en) * | 1983-11-04 | 1985-06-01 | Sony Corp | Decoding method of run length code |
JPS61139069U (en) * | 1985-02-18 | 1986-08-28 | ||
GB2178577B (en) * | 1985-07-27 | 1989-01-11 | Plessey Co Plc | A signal converter |
US4800441A (en) * | 1986-02-28 | 1989-01-24 | Kabushiki Kaisha Toshiba | Binary data compression and expansion processing apparatus |
JPH0656958B2 (en) * | 1986-07-03 | 1994-07-27 | キヤノン株式会社 | Information data restoration device |
US6408102B1 (en) | 1993-12-20 | 2002-06-18 | Canon Kabushiki Kaisha | Encoding/decoding device |
JP3227292B2 (en) * | 1993-12-20 | 2001-11-12 | キヤノン株式会社 | Encoding device, encoding method, decoding device, decoding method, encoding / decoding device, and encoding / decoding method |
KR0152038B1 (en) * | 1994-10-17 | 1998-10-15 | 김광호 | Variable length decode apparatus using partner address |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3701111A (en) * | 1971-02-08 | 1972-10-24 | Ibm | Method of and apparatus for decoding variable-length codes having length-indicating prefixes |
GB1332631A (en) * | 1971-02-26 | 1973-10-03 | Ibm | Data processing system |
US3835467A (en) * | 1972-11-10 | 1974-09-10 | Ibm | Minimal redundancy decoding method and means |
US3918047A (en) * | 1974-03-28 | 1975-11-04 | Bell Telephone Labor Inc | Decoding circuit for variable length codes |
US3883847A (en) * | 1974-03-28 | 1975-05-13 | Bell Telephone Labor Inc | Uniform decoding of minimum-redundancy codes |
-
1980
- 1980-09-22 JP JP13186280A patent/JPS5755668A/en active Granted
-
1981
- 1981-09-15 GB GB8127757A patent/GB2084366B/en not_active Expired
- 1981-09-21 FR FR8117756A patent/FR2490899A1/en active Granted
- 1981-09-22 DE DE19813137704 patent/DE3137704C2/en not_active Expired
- 1981-09-22 NL NL8104352A patent/NL190094C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL8104352A (en) | 1982-04-16 |
NL190094B (en) | 1993-05-17 |
JPS5755668A (en) | 1982-04-02 |
GB2084366B (en) | 1985-07-03 |
FR2490899A1 (en) | 1982-03-26 |
FR2490899B1 (en) | 1984-12-28 |
JPS6338153B2 (en) | 1988-07-28 |
DE3137704C2 (en) | 1986-01-09 |
DE3137704A1 (en) | 1982-04-15 |
GB2084366A (en) | 1982-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A1A | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
A85 | Still pending on 85-01-01 | ||
BC | A request for examination has been filed | ||
CNR | Transfer of rights (patent application after its laying openfor public ins pection) |
Free format text: NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
|
V4 | Lapsed because of reaching the maxim lifetime of a patent |
Free format text: 20010922 |