DE2053341A1 - Verfahren zur Kompression und Dekompression digital kodierter Daten für graphische Zeichen - Google Patents
Verfahren zur Kompression und Dekompression digital kodierter Daten für graphische ZeichenInfo
- Publication number
- DE2053341A1 DE2053341A1 DE19702053341 DE2053341A DE2053341A1 DE 2053341 A1 DE2053341 A1 DE 2053341A1 DE 19702053341 DE19702053341 DE 19702053341 DE 2053341 A DE2053341 A DE 2053341A DE 2053341 A1 DE2053341 A1 DE 2053341A1
- Authority
- DE
- Germany
- Prior art keywords
- bit
- scan
- memory
- circuit
- count
- 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
- 238000000034 method Methods 0.000 title claims description 18
- 230000008569 process Effects 0.000 title claims description 8
- 230000006835 compression Effects 0.000 title claims description 6
- 238000007906 compression Methods 0.000 title claims description 6
- 230000006837 decompression Effects 0.000 title claims description 6
- 230000015654 memory Effects 0.000 claims description 156
- 230000008859 change Effects 0.000 claims description 56
- 238000005070 sampling Methods 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 9
- 230000001186 cumulative effect Effects 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 6
- 230000003936 working memory Effects 0.000 claims description 2
- 238000012546 transfer Methods 0.000 description 23
- 230000006870 function Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 102100035861 Cytosolic 5'-nucleotidase 1A Human genes 0.000 description 1
- 101000802744 Homo sapiens Cytosolic 5'-nucleotidase 1A Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
- G09G1/14—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
- B41B19/00—Photoelectronic composing machines
- B41B19/01—Photoelectronic composing machines having electron-beam tubes producing an image of at least one character which is photographed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
- B41B27/00—Control, indicating, or safety devices or systems for composing machines of various kinds or types
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Facsimiles In General (AREA)
- Controls And Circuits For Display Device (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US87379469A | 1969-11-04 | 1969-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2053341A1 true DE2053341A1 (de) | 1972-05-10 |
Family
ID=25362329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702053341 Pending DE2053341A1 (de) | 1969-11-04 | 1970-10-30 | Verfahren zur Kompression und Dekompression digital kodierter Daten für graphische Zeichen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3686631A (enrdf_load_stackoverflow) |
| BE (1) | BE758268A (enrdf_load_stackoverflow) |
| CA (1) | CA957073A (enrdf_load_stackoverflow) |
| DE (1) | DE2053341A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2071741A5 (enrdf_load_stackoverflow) |
| GB (1) | GB1328266A (enrdf_load_stackoverflow) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991267A (en) * | 1970-01-26 | 1976-11-09 | Eg & G, Inc. | Method for producing a compressed digital representation of a visible image |
| FR2115686A5 (enrdf_load_stackoverflow) * | 1970-11-30 | 1972-07-07 | Labo Cent Telecommunicat | |
| US3956580A (en) * | 1970-12-30 | 1976-05-11 | Ricoh Co., Ltd. | System for reducing the transmission time of similar portions of visible images |
| JPS5433496B2 (enrdf_load_stackoverflow) * | 1972-04-18 | 1979-10-20 | ||
| SE375171B (enrdf_load_stackoverflow) * | 1973-05-15 | 1975-04-07 | Werns Inter Vvs Ab | |
| US4103287A (en) * | 1973-12-17 | 1978-07-25 | Bell Telephone Laboratories, Incorporated | Variable length codes for high quality image encoding |
| JPS52105734A (en) * | 1976-03-01 | 1977-09-05 | Canon Inc | Signal coverter |
| US4152697A (en) * | 1976-08-11 | 1979-05-01 | Xerox Corporation | Parallel run-length decoder |
| DE2701001C3 (de) * | 1977-01-12 | 1979-06-28 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren zur Gewinnung von Steuerdaten für elektronische Lichtsatzanlagen |
| JPS53124940A (en) * | 1977-04-06 | 1978-10-31 | Shinko Electric Co Ltd | Data processing system |
| US4313114A (en) * | 1980-05-30 | 1982-01-26 | Leupold & Stevens, Inc. | Liquid level recorder apparatus and method for storing level differences in memory |
| US4442545A (en) * | 1981-05-27 | 1984-04-10 | Rca Corporation | Compaction of television display graphics in phantom-raster-scanned image memory |
| US4560976A (en) * | 1981-10-15 | 1985-12-24 | Codex Corporation | Data compression |
| US4562423A (en) * | 1981-10-15 | 1985-12-31 | Codex Corporation | Data compression |
| US4876607A (en) * | 1982-03-31 | 1989-10-24 | International Business Machines Corporation | Complex character generator utilizing byte scanning |
| US4633505A (en) * | 1984-11-23 | 1986-12-30 | Xerox Corporation | Character compression technique |
| JPH0693245B2 (ja) * | 1985-04-20 | 1994-11-16 | 富士写真フイルム株式会社 | フオ−ム情報圧縮方法 |
| JP3083344B2 (ja) * | 1990-05-25 | 2000-09-04 | ヒューレット・パッカード・カンパニー | データの圧縮及び圧縮解除方法 |
| DE4443959A1 (de) * | 1994-12-09 | 1996-06-20 | Walter Dr Mehnert | Verfahren zur seriellen Übertragung von digitalen Meßwerten |
| DE19933491A1 (de) * | 1999-07-09 | 2001-02-01 | Walter Mehner | Verfahren zur seriellen Übertragung von digitalen Meßdaten |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3061672A (en) * | 1960-07-25 | 1962-10-30 | Sperry Rand Corp | Run length encoder |
| US3230514A (en) * | 1961-04-28 | 1966-01-18 | Sperry Rand Corp | Selectable word length buffer storage system |
| US3225333A (en) * | 1961-12-28 | 1965-12-21 | Ibm | Differential quantitized storage and compression |
| US3305841A (en) * | 1963-09-30 | 1967-02-21 | Alphanumeric Inc | Pattern generator |
| US3347981A (en) * | 1964-03-18 | 1967-10-17 | Polaroid Corp | Method for transmitting digital data in connection with document reproduction system |
| US3295105A (en) * | 1964-08-27 | 1966-12-27 | Sylvania Electric Prod | Scan control and normalization for a character recognition system |
| US3449726A (en) * | 1965-11-20 | 1969-06-10 | Sony Corp | Number display system |
| US3293605A (en) * | 1966-01-20 | 1966-12-20 | Moore Laurence | Digital monitoring system |
| US3439753A (en) * | 1966-04-19 | 1969-04-22 | Bell Telephone Labor Inc | Reduced bandwidth pulse modulation scheme using dual mode encoding in selected sub-block sampling periods |
| US3483317A (en) * | 1966-06-10 | 1969-12-09 | Xerox Corp | Selective encoding technique for band-width reduction in graphic communication systems |
| GB1189982A (en) * | 1966-06-15 | 1970-04-29 | Xerox Corp | Binary Encoding |
| US3502806A (en) * | 1966-08-01 | 1970-03-24 | Xerox Corp | Modified run length data reduction system |
-
0
- BE BE758268D patent/BE758268A/xx unknown
-
1969
- 1969-11-04 US US873794A patent/US3686631A/en not_active Expired - Lifetime
-
1970
- 1970-09-28 FR FR7036293A patent/FR2071741A5/fr not_active Expired
- 1970-10-26 CA CA096,614A patent/CA957073A/en not_active Expired
- 1970-10-30 DE DE19702053341 patent/DE2053341A1/de active Pending
- 1970-10-30 GB GB5164670A patent/GB1328266A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA957073A (en) | 1974-10-29 |
| GB1328266A (en) | 1973-08-30 |
| FR2071741A5 (enrdf_load_stackoverflow) | 1971-09-17 |
| BE758268A (fr) | 1971-04-01 |
| US3686631A (en) | 1972-08-22 |
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