BE442948A - - Google Patents
Info
- Publication number
- BE442948A BE442948A BE442948DA BE442948A BE 442948 A BE442948 A BE 442948A BE 442948D A BE442948D A BE 442948DA BE 442948 A BE442948 A BE 442948A
- Authority
- BE
- Belgium
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
- H04N1/00095—Systems or arrangements for the transmission of the picture signal
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- 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
- H04N1/40—Picture signal circuits
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimiles In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US319251A US2278692A (en) | 1940-02-16 | 1940-02-16 | Facsimile signal inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE442948A true BE442948A (en) |
Family
ID=23241465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE442948D BE442948A (en) | 1940-02-16 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2278692A (en) |
| BE (1) | BE442948A (en) |
| GB (1) | GB544268A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2532566A (en) * | 1945-10-26 | 1950-12-05 | Millman Jacob | Photoelectric gate control for pulse-echo systems |
| US2729699A (en) * | 1951-01-18 | 1956-01-03 | Faximile Inc | Facsimile system wherein the recording is a modification of the copy |
| US2657258A (en) * | 1951-01-18 | 1953-10-27 | Faximile Inc | Facsimile system wherein the recording is a modification of the copy |
-
0
- BE BE442948D patent/BE442948A/xx unknown
-
1940
- 1940-02-16 US US319251A patent/US2278692A/en not_active Expired - Lifetime
-
1941
- 1941-02-07 GB GB1632/41A patent/GB544268A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB544268A (en) | 1942-04-03 |
| US2278692A (en) | 1942-04-07 |