GB1453767A - Receivers for monochromatic and chromatic television signals - Google Patents
Receivers for monochromatic and chromatic television signalsInfo
- Publication number
- GB1453767A GB1453767A GB825874A GB825874A GB1453767A GB 1453767 A GB1453767 A GB 1453767A GB 825874 A GB825874 A GB 825874A GB 825874 A GB825874 A GB 825874A GB 1453767 A GB1453767 A GB 1453767A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- colour
- circuit
- received
- amplifier
- 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
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/70—Circuits for processing colour signals for colour killing
-
- 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
- H04N9/648—Video amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
1453767 Colour television INDESIT INDUSTRIA ELETTRO DOMESTICI ITALIANA SpA 22 Feb 1974 [23 Feb 1973] 8258/74 Heading H4F A colour killer is operated by a threshold detector 15 in response to the absence of a halfline-frequency identification signal derived at 14 from bursts separated from a received PAL colour television signal; the output of circuit 15 is also fed to circuits 17, 18, 19, circuit 17 including a light-emitting diode (D207, Fig. 5, not shown) which is lit when a colour television signal is being received, circuit 18 (Fig. 4, not shown) being a red signal amplifier, the signal from 15 causing the gain of this amplifier to be greater when a colour signal is being received than when a monochrome signal is being received, and circuit 19 (Fig. 3, not shown) being a trap to remove the colour subcarrier from the luminance signal during colour reception. The chrominance signal is fed via amplifier 11 to a delay line decoder 12 and thence to a circuit 6 including demodulators, a PAL switch, the colour killer, and a matrix circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT6747373A IT977880B (en) | 1973-02-23 | 1973-02-23 | AUTOMATIC SWITCHING CIRCUIT WHITE BLACK COLOR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1453767A true GB1453767A (en) | 1976-10-27 |
Family
ID=11302691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB825874A Expired GB1453767A (en) | 1973-02-23 | 1974-02-22 | Receivers for monochromatic and chromatic television signals |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2408654A1 (en) |
| GB (1) | GB1453767A (en) |
| IT (1) | IT977880B (en) |
| NL (1) | NL7402400A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4151551A (en) * | 1976-08-04 | 1979-04-24 | Tektronix, Inc. | Programmable color enable and sequencing system for secam |
-
1973
- 1973-02-23 IT IT6747373A patent/IT977880B/en active
-
1974
- 1974-02-21 NL NL7402400A patent/NL7402400A/xx not_active Application Discontinuation
- 1974-02-22 DE DE19742408654 patent/DE2408654A1/en not_active Withdrawn
- 1974-02-22 GB GB825874A patent/GB1453767A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7402400A (en) | 1974-08-27 |
| IT977880B (en) | 1974-09-20 |
| DE2408654A1 (en) | 1974-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1483488A (en) | Circuit arrangements and methods for colour television signal receiving | |
| GB1414773A (en) | Hue control circuit for colour television receivers | |
| GB1386235A (en) | Pal chroma processor | |
| GB1453767A (en) | Receivers for monochromatic and chromatic television signals | |
| GB1503612A (en) | Arrangements for keying video signals | |
| CA1261463A (en) | Digital television receiver with digital video processing circuit | |
| GB991761A (en) | Improvements in and relating to colour television apparatus | |
| GB689821A (en) | Color-television system | |
| GB1076890A (en) | Improvements in colour television receivers | |
| GB1117725A (en) | Demodulating circuit for waves frequency modulated by signals of the video type | |
| GB1511932A (en) | Video recording apparatus | |
| GB1395015A (en) | Gamma correction circuit | |
| GB789768A (en) | Colour television receiver | |
| GB1113083A (en) | Improvements in colour television circuits and apparatus | |
| JPS5765088A (en) | Color signal processing circut for color receiver | |
| FR2408961A1 (en) | Decoding of colour TV signals in PAL and SECAM systems - uses identification pulses transmitted during SECAM vertical sweep pulse emission | |
| GB1031246A (en) | Improvements relating to colour television systems | |
| JPS5474626A (en) | Reproduction system of chroma signal and its circuit | |
| GB815681A (en) | Improvements in color television reception | |
| GB1521296A (en) | Circuit arrangements for demodulating chrominance television signals | |
| GB1104766A (en) | Color television receiver employing single video amplifier | |
| GB1382533A (en) | Colour television receiver | |
| JPS54140827A (en) | Removing unit for cross color and dot disturbance | |
| GB1212710A (en) | Circuit arrangement for synchronizing a pal line switch | |
| GB1473126A (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |