JPS5295113A - Band compression transmission system - Google Patents
Band compression transmission systemInfo
- Publication number
- JPS5295113A JPS5295113A JP1205376A JP1205376A JPS5295113A JP S5295113 A JPS5295113 A JP S5295113A JP 1205376 A JP1205376 A JP 1205376A JP 1205376 A JP1205376 A JP 1205376A JP S5295113 A JPS5295113 A JP S5295113A
- Authority
- JP
- Japan
- Prior art keywords
- band compression
- transmission system
- compression transmission
- density
- scanning line
- 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.)
- 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
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
- H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
- H04N1/415—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which the picture-elements are subdivided or grouped into fixed one-dimensional or two-dimensional blocks
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/17—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa the scanning speed being dependent on content of picture
-
- 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
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Facsimiles In General (AREA)
- Facsimile Transmission Control (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Facsimile Image Signal Circuits (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1205376A JPS5295113A (en) | 1976-02-05 | 1976-02-05 | Band compression transmission system |
GB3691/77A GB1573753A (en) | 1976-02-05 | 1977-01-26 | Facsimile communication system |
US05/763,516 US4158861A (en) | 1976-02-05 | 1977-01-28 | Facsimile communication system and method |
CA000270798A CA1119285A (en) | 1976-02-05 | 1977-02-01 | Facsimile communication system |
FR7703243A FR2340654A1 (fr) | 1976-02-05 | 1977-02-04 | Dispositif de transmission de fac-similes |
AU21977/77A AU514216B2 (en) | 1976-02-05 | 1977-02-04 | Facsimile transmission system with redundancy reduction |
DE2704772A DE2704772C3 (de) | 1976-02-05 | 1977-02-04 | Faksimile-Übertragungssystem |
ES455697A ES455697A1 (es) | 1976-02-05 | 1977-02-05 | Un sistema de comunicacion por facsimil. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1205376A JPS5295113A (en) | 1976-02-05 | 1976-02-05 | Band compression transmission system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5295113A true JPS5295113A (en) | 1977-08-10 |
JPS5734948B2 JPS5734948B2 (ja) | 1982-07-26 |
Family
ID=11794850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1205376A Granted JPS5295113A (en) | 1976-02-05 | 1976-02-05 | Band compression transmission system |
Country Status (8)
Country | Link |
---|---|
US (1) | US4158861A (ja) |
JP (1) | JPS5295113A (ja) |
AU (1) | AU514216B2 (ja) |
CA (1) | CA1119285A (ja) |
DE (1) | DE2704772C3 (ja) |
ES (1) | ES455697A1 (ja) |
FR (1) | FR2340654A1 (ja) |
GB (1) | GB1573753A (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4492978A (en) * | 1979-03-12 | 1985-01-08 | Westinghouse Electric Corp. | Transmission system for TV signals |
JPS57115072A (en) * | 1981-01-07 | 1982-07-17 | Fuji Xerox Co Ltd | Method for reading information of document reader |
US4760462A (en) * | 1981-03-26 | 1988-07-26 | Ricoh Company, Ltd. | Heat sensitive recording system in facsimile communication |
BE889996A (nl) * | 1981-08-18 | 1981-12-16 | Belge Lampes Mat Electr Mble | Facsimile overdrachtsinrichting |
US4447830A (en) * | 1981-09-10 | 1984-05-08 | Xerox Corporation | Image scanning apparatus and method |
JPS5911063A (ja) * | 1982-07-12 | 1984-01-20 | Ricoh Co Ltd | フアクシミリ装置 |
JPS59215174A (ja) * | 1983-05-20 | 1984-12-05 | Canon Inc | フアクシミリ装置 |
US4729034A (en) * | 1985-06-27 | 1988-03-01 | Netexpress Systems, Inc. | Method and apparatus for selection of a coding reference line for two-dimensional coding of image data representing screened images |
JPH0656958B2 (ja) * | 1986-07-03 | 1994-07-27 | キヤノン株式会社 | 情報デ−タ復元装置 |
JPS6358448U (ja) * | 1986-10-06 | 1988-04-19 | ||
US5181126A (en) * | 1989-02-09 | 1993-01-19 | Murata Kikai Kabushiki Kaisha | Reading device for facsimile apparatus |
JPH04504043A (ja) * | 1989-12-22 | 1992-07-16 | イーストマン・コダック・カンパニー | 画像データの高速圧縮 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50159206A (ja) * | 1974-06-11 | 1975-12-23 | ||
JPS50159205A (ja) * | 1974-06-11 | 1975-12-23 |
Family Cites Families (8)
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 |
US3643016A (en) * | 1970-05-11 | 1972-02-15 | Magnavox Co | Facsimile system with data compression by {37 white space skipping{38 |
JPS5132488B2 (ja) * | 1971-12-30 | 1976-09-13 | ||
GB1409365A (en) * | 1972-02-17 | 1975-10-08 | Dacom Inc | Dual-line data compression method and system for compressing transmitting and reproducing facsimile data |
US3947627A (en) * | 1972-10-30 | 1976-03-30 | Matsushita Electric Industrial Company, Limited | Facsimile system |
JPS5222494B2 (ja) * | 1972-12-15 | 1977-06-17 | ||
US3830966A (en) * | 1973-01-03 | 1974-08-20 | Eg & G Inc | Apparatus and method for transmitting a bandwidth compressed digital signal representation of a visible image |
US3955045A (en) * | 1974-03-08 | 1976-05-04 | Exxon Research And Engineering Company | Method and apparatus for time compression of facsimile transmissions |
-
1976
- 1976-02-05 JP JP1205376A patent/JPS5295113A/ja active Granted
-
1977
- 1977-01-26 GB GB3691/77A patent/GB1573753A/en not_active Expired
- 1977-01-28 US US05/763,516 patent/US4158861A/en not_active Expired - Lifetime
- 1977-02-01 CA CA000270798A patent/CA1119285A/en not_active Expired
- 1977-02-04 AU AU21977/77A patent/AU514216B2/en not_active Expired
- 1977-02-04 FR FR7703243A patent/FR2340654A1/fr active Granted
- 1977-02-04 DE DE2704772A patent/DE2704772C3/de not_active Expired
- 1977-02-05 ES ES455697A patent/ES455697A1/es not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50159206A (ja) * | 1974-06-11 | 1975-12-23 | ||
JPS50159205A (ja) * | 1974-06-11 | 1975-12-23 |
Also Published As
Publication number | Publication date |
---|---|
FR2340654B1 (ja) | 1983-01-07 |
CA1119285A (en) | 1982-03-02 |
DE2704772C3 (de) | 1981-11-12 |
DE2704772A1 (de) | 1977-08-11 |
JPS5734948B2 (ja) | 1982-07-26 |
US4158861A (en) | 1979-06-19 |
GB1573753A (en) | 1980-08-28 |
FR2340654A1 (fr) | 1977-09-02 |
DE2704772B2 (de) | 1981-01-22 |
ES455697A1 (es) | 1978-07-16 |
AU514216B2 (en) | 1981-01-29 |
AU2197777A (en) | 1978-08-10 |
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