GB595575A - Continuous facsimile scanner - Google Patents
Continuous facsimile scannerInfo
- Publication number
- GB595575A GB595575A GB17294/45A GB1729445A GB595575A GB 595575 A GB595575 A GB 595575A GB 17294/45 A GB17294/45 A GB 17294/45A GB 1729445 A GB1729445 A GB 1729445A GB 595575 A GB595575 A GB 595575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copy
- drum
- iconoscope
- strip
- reflected
- 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.)
- Expired
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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
- H04N1/126—Arrangements for the main scanning
- H04N1/127—Arrangements for the main scanning using a cathode ray tube or the like
-
- 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
-
- 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
- H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
595,575. Copying-telegraphy. FAXIMILE, Inc. July 6, 1945, No. 17294. Convention date, Nov. 22, 1941. [Class 40 (iii)] In a facsimile transmitter the copy is wrapped around a drum and a narrow strip is illuminated and reflected on to the mosaic screen of an iconoscope where it is longitudinally scanned by an electron beam, the resulting signal being amplified and utilized by any known method to reproduce the copy in a receiver. A linear filament 14 is focused by a lens 19 to illuminate a narrow strip of the copy 22 held on a drum 20 which is rotated continuously or step-by-step. The illuminated strip is reflected via focusing lens 18 on to a strip mosaic screen 7 of an iconoscope 6 where it is longitudinally scanned by an electron beam 35. The resulting signals are picked off by an electrode 8, amplified and utilized in any known manner. The copy 22 is passed under rollers (Fig. 2, not shown) and around the drum in an arc large enough to prevent slipping between the copy and the drum. Slotted masks may be provided instead of or in addition to the focusing lenses 18, 19. The effect of glare on the iconoscope is said to be minimized when either the incident or reflected light beam is perpendicular to the scanning line on the drum and the angle between the beams is 45 degrees.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US420043A US2379906A (en) | 1941-11-22 | 1941-11-22 | Continuous facsimile scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB595575A true GB595575A (en) | 1947-12-09 |
Family
ID=23664844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17294/45A Expired GB595575A (en) | 1941-11-22 | 1945-07-06 | Continuous facsimile scanner |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2379906A (en) |
| GB (1) | GB595575A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2778872A (en) * | 1951-09-28 | 1957-01-22 | Alden Products Co | Optical scanner |
| US2857458A (en) * | 1952-10-15 | 1958-10-21 | Rca Corp | Electronically controlled magnetic recording and producing apparatus |
| US3131257A (en) * | 1961-02-09 | 1964-04-28 | Ampex | Signal processing means |
-
1941
- 1941-11-22 US US420043A patent/US2379906A/en not_active Expired - Lifetime
-
1945
- 1945-07-06 GB GB17294/45A patent/GB595575A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2379906A (en) | 1945-07-10 |
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