FR2251972B1 - - Google Patents
Info
- Publication number
- FR2251972B1 FR2251972B1 FR7438094A FR7438094A FR2251972B1 FR 2251972 B1 FR2251972 B1 FR 2251972B1 FR 7438094 A FR7438094 A FR 7438094A FR 7438094 A FR7438094 A FR 7438094A FR 2251972 B1 FR2251972 B1 FR 2251972B1
- Authority
- FR
- France
- 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
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/52—Automatic gain control
- H04N5/53—Keyed automatic gain control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Systems (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT7040373A IT999777B (it) | 1973-11-20 | 1973-11-20 | Sistema di controllo automatico di guadagno |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2251972A1 FR2251972A1 (en) | 1975-06-13 |
FR2251972B1 true FR2251972B1 (it) | 1982-04-16 |
Family
ID=11313863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7438094A Granted FR2251972A1 (en) | 1973-11-20 | 1974-11-20 | Automatic gain control for television receiver - using signal referenced to black level avoids dependence on average brightness |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE822258A (it) |
FR (1) | FR2251972A1 (it) |
IT (1) | IT999777B (it) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5272531A (en) * | 1992-12-07 | 1993-12-21 | Motorola, Inc. | Automatic gain control system for use in positive modulation which detects the peak white voltage level slowly while simultaneously adjusting black voltage level fluctuations quickly |
-
1973
- 1973-11-20 IT IT7040373A patent/IT999777B/it active
-
1974
- 1974-11-14 BE BE6044819A patent/BE822258A/xx not_active IP Right Cessation
- 1974-11-20 FR FR7438094A patent/FR2251972A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
BE822258A (fr) | 1975-03-03 |
IT999777B (it) | 1976-03-10 |
FR2251972A1 (en) | 1975-06-13 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CA | Change of address | ||
TP | Transmission of property |