GB1168348A - Video Amplifier Circuit for Colour Signals and/or Chrominance Signals - Google Patents
Video Amplifier Circuit for Colour Signals and/or Chrominance SignalsInfo
- Publication number
- GB1168348A GB1168348A GB23392/67A GB2339267A GB1168348A GB 1168348 A GB1168348 A GB 1168348A GB 23392/67 A GB23392/67 A GB 23392/67A GB 2339267 A GB2339267 A GB 2339267A GB 1168348 A GB1168348 A GB 1168348A
- Authority
- GB
- United Kingdom
- Prior art keywords
- video amplifier
- colour
- signals
- resistor
- arrangement
- 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
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/72—Circuits for processing colour signals for reinsertion of DC and slowly varying components of colour signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Color Television Image Signal Generators (AREA)
Abstract
1,168,348. Video amplifier arrangement. INTERNATIONAL STANDARD ELECTRIC CORP. 19 May, 1967 [23 June, 1966], No. 23392/67. Addition to 1,158,779. Heading H4F. The Specification describes a colour video amplifier arrangement basically comprising three amplifier circuits (only one shown) as shown in Fig. 1 of the parent Specification 1,158,779, one for each colour or colour difference signal, and sharing the same sample controlling line fly-back pulse, via a variable resistor 34, Fig. 1. The amplitude of the controlling line fly-back pulse determines the amplification of the respective D.C. video amplifier. Since said pulses are applied with constant ratio (as determined by the setting of resistor 34) to the three video amplifier diodes 13, the white colour balance between the combined outputs of the amplifiers will remain constant, resistor 34 acting as a black and white brilliance control. In the arrangement of Fig. 2, resistors 34 is replaced by a circuit 29, 30, 31, varying the cut-off level of the line fly-back pulses.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST24336A DE1290579B (en) | 1965-08-31 | 1965-08-31 | Circuit for the recovery of the suppressed DC voltage component of color or color difference signals |
| DEST024468 | 1965-10-06 | ||
| DEST025442 | 1966-05-24 | ||
| DEST025571 | 1966-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1168348A true GB1168348A (en) | 1969-10-22 |
Family
ID=7460602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23392/67A Expired GB1168348A (en) | 1965-08-31 | 1967-05-19 | Video Amplifier Circuit for Colour Signals and/or Chrominance Signals |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE733813A (en) |
| DE (1) | DE1487136C3 (en) |
| FR (1) | FR93559E (en) |
| GB (1) | GB1168348A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5758445A (en) * | 1996-07-16 | 1998-06-02 | Casull; Richard J. | Chamber for a firearm |
| US5768815A (en) * | 1996-07-16 | 1998-06-23 | Casull; Richard J. | Extractor and system for extracting a cartridge from a firearm |
-
1966
- 1966-06-23 DE DE1487136A patent/DE1487136C3/en not_active Expired
-
1967
- 1967-05-19 GB GB23392/67A patent/GB1168348A/en not_active Expired
- 1967-06-23 FR FR111703A patent/FR93559E/en not_active Expired
-
1969
- 1969-05-30 BE BE733813D patent/BE733813A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1487136C3 (en) | 1975-12-04 |
| FR93559E (en) | 1969-04-18 |
| DE1487136A1 (en) | 1968-12-05 |
| DE1487136B2 (en) | 1975-01-23 |
| BE733813A (en) | 1969-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |