JPS4958705A - - Google Patents
Info
- Publication number
- JPS4958705A JPS4958705A JP47099605A JP9960572A JPS4958705A JP S4958705 A JPS4958705 A JP S4958705A JP 47099605 A JP47099605 A JP 47099605A JP 9960572 A JP9960572 A JP 9960572A JP S4958705 A JPS4958705 A JP S4958705A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/41—Bandwidth or redundancy reduction
- H04N1/4105—Bandwidth or redundancy reduction for halftone screened pictures
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Processing Or Creating Images (AREA)
- Image Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9960572A JPS5726023B2 (US06650917-20031118-M00005.png) | 1972-10-04 | 1972-10-04 | |
| US403660A US3902008A (en) | 1972-10-04 | 1973-10-04 | Data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9960572A JPS5726023B2 (US06650917-20031118-M00005.png) | 1972-10-04 | 1972-10-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4958705A true JPS4958705A (US06650917-20031118-M00005.png) | 1974-06-07 |
| JPS5726023B2 JPS5726023B2 (US06650917-20031118-M00005.png) | 1982-06-02 |
Family
ID=14251708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9960572A Expired JPS5726023B2 (US06650917-20031118-M00005.png) | 1972-10-04 | 1972-10-04 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3902008A (US06650917-20031118-M00005.png) |
| JP (1) | JPS5726023B2 (US06650917-20031118-M00005.png) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558672A (en) * | 1978-10-27 | 1980-05-01 | Nec Corp | Digital facsimile unit |
| JPS5748846A (en) * | 1980-09-08 | 1982-03-20 | Shiro Okamura | Code conversion system |
| JPS5768973A (en) * | 1980-10-17 | 1982-04-27 | Oki Electric Ind Co Ltd | Compression system for video data |
| JPS58197982A (ja) * | 1982-05-13 | 1983-11-17 | Oki Electric Ind Co Ltd | 静止画像伝送方式 |
| JPS6020277A (ja) * | 1983-07-15 | 1985-02-01 | Fujitsu Ltd | 多階調デ−タ圧縮方式 |
| JPS6142045A (ja) * | 1984-08-02 | 1986-02-28 | Matsushita Electric Ind Co Ltd | 画像フアイリング装置 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048657A (en) * | 1975-12-22 | 1977-09-13 | Teletype Corporation | Method and apparatus for synchronizing a facsimile transmission |
| US4193097A (en) * | 1977-04-30 | 1980-03-11 | Canon Kabushiki Kaisha | Facsimile apparatus |
| DE2748289C2 (de) * | 1977-10-27 | 1979-05-23 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren und Anordnung zum Vermindern der Redundanz von Zeichen oder grafische Muster beschreibenden binären Zeichenfolgen |
| US4353096A (en) * | 1978-10-05 | 1982-10-05 | Nippon Electric Co., Ltd. | Digital facsimile system to band-compress half-tone picture signals |
| FR2505588B1 (fr) * | 1981-05-08 | 1985-12-06 | Agence France Presse | Systeme pour la transmission numerique d'information se presentant sous la forme de signaux analogiques |
| CA1189181A (fr) * | 1981-05-08 | 1985-06-18 | Stephane Guerillot | Procede et dispositif pour la recreation d'un signal analogique de luminance a partir d'un signal numerique |
| JPS60159332U (ja) * | 1984-03-30 | 1985-10-23 | アサノ精機株式会社 | 定量切出秤の投入流量調整装置 |
| JPH02179071A (ja) * | 1988-12-28 | 1990-07-12 | Fuji Photo Film Co Ltd | 画像圧縮装置 |
| US5623520A (en) * | 1994-06-21 | 1997-04-22 | Northrop Grumman Corporation | Correlation detector employing two level A/D conversion and arithmetic sign control |
| US6741608B1 (en) * | 1999-01-29 | 2004-05-25 | Avaya Technology Corp. | Dynamically configurable system and method for transcoding streaming data and telecommunications infrastructure the same |
| US8081830B2 (en) * | 2005-01-11 | 2011-12-20 | Hewlett-Packard Development Company, L.P. | Enhancement of digital images |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2996581A (en) * | 1955-12-16 | 1961-08-15 | Marconi Wireless Telegraph Co | Quantising of television signals |
| US2941040A (en) * | 1958-01-31 | 1960-06-14 | Technicolor Corp | Bandwidth reduction system |
| GB1057024A (en) * | 1962-06-27 | 1967-02-01 | Ass Elect Ind | Improvements relating to multiplex transmission systems |
| US3725573A (en) * | 1971-08-31 | 1973-04-03 | Sanders Associates Inc | Video buffer |
| US3800080A (en) * | 1972-05-10 | 1974-03-26 | Ricoh Kk | Facsimile device |
-
1972
- 1972-10-04 JP JP9960572A patent/JPS5726023B2/ja not_active Expired
-
1973
- 1973-10-04 US US403660A patent/US3902008A/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558672A (en) * | 1978-10-27 | 1980-05-01 | Nec Corp | Digital facsimile unit |
| JPS6352512B2 (US06650917-20031118-M00005.png) * | 1978-10-27 | 1988-10-19 | Nippon Electric Co | |
| JPS5748846A (en) * | 1980-09-08 | 1982-03-20 | Shiro Okamura | Code conversion system |
| JPS5768973A (en) * | 1980-10-17 | 1982-04-27 | Oki Electric Ind Co Ltd | Compression system for video data |
| JPS58197982A (ja) * | 1982-05-13 | 1983-11-17 | Oki Electric Ind Co Ltd | 静止画像伝送方式 |
| JPS6020277A (ja) * | 1983-07-15 | 1985-02-01 | Fujitsu Ltd | 多階調デ−タ圧縮方式 |
| JPS6142045A (ja) * | 1984-08-02 | 1986-02-28 | Matsushita Electric Ind Co Ltd | 画像フアイリング装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3902008A (en) | 1975-08-26 |
| JPS5726023B2 (US06650917-20031118-M00005.png) | 1982-06-02 |
