NL6811651A - - Google Patents
Info
- Publication number
- NL6811651A NL6811651A NL6811651A NL6811651A NL6811651A NL 6811651 A NL6811651 A NL 6811651A NL 6811651 A NL6811651 A NL 6811651A NL 6811651 A NL6811651 A NL 6811651A NL 6811651 A NL6811651 A NL 6811651A
- Authority
- NL
- Netherlands
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
- H04N1/40—Picture signal circuits
- H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means
-
- 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
- H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66293567A | 1967-08-24 | 1967-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6811651A true NL6811651A (en) | 1969-02-26 |
Family
ID=24659827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6811651A NL6811651A (en) | 1967-08-24 | 1968-08-15 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE719735A (en) |
| DE (1) | DE1762750A1 (en) |
| FR (1) | FR1577122A (en) |
| NL (1) | NL6811651A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0722311B2 (en) * | 1986-11-13 | 1995-03-08 | キヤノン株式会社 | Color image reading device |
-
1968
- 1968-08-15 NL NL6811651A patent/NL6811651A/xx unknown
- 1968-08-17 DE DE19681762750 patent/DE1762750A1/en active Pending
- 1968-08-21 BE BE719735D patent/BE719735A/xx unknown
- 1968-08-26 FR FR1577122D patent/FR1577122A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1762750A1 (en) | 1970-09-17 |
| FR1577122A (en) | 1969-08-01 |
| BE719735A (en) | 1969-02-03 |