ES406062A1 - Decoding systems for colour television receivers - Google Patents
Decoding systems for colour television receiversInfo
- Publication number
- ES406062A1 ES406062A1 ES406062A ES406062A ES406062A1 ES 406062 A1 ES406062 A1 ES 406062A1 ES 406062 A ES406062 A ES 406062A ES 406062 A ES406062 A ES 406062A ES 406062 A1 ES406062 A1 ES 406062A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- phase
- chrominance
- chrominance signal
- reference signal
- 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
- H04N9/44—Colour synchronisation
- H04N9/465—Synchronisation of the PAL-switch
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Color Television Systems (AREA)
Abstract
Decoding system for a color television receiver adapted to receive a chrominance signal containing the color boost signal from a color television signal transmitted in accordance with the phase reversal system on alternate lines, comprising a transformer circuit signal equipped with a delay device and a switching gate to produce a transformed chrominance signal composed of switched segments of the received chrominance signal that are substantially the length of a line interval and their delayed replicates, substantially a line interval alternately arranged in sequence and some first and second demodulators intended to demodulate, with at least one of said demodulators said transformed chrominance signal, characterized in that a reference signal generating circuit is used to produce a reference signal provided with a frequency equal to se to the overshoot and a phase that varies in response to the overshoot signal phase contained in said transformed chrominance signal, a phase discriminator circuit serves to receive the received chrominance signal, the delayed chrominance signal from the delay device and said reference signal to discriminate the phase of said reference signal by demodulating said chrominance signals by said reference signal, and a control circuit is used between said phase discriminator circuit and said switching gate to produce a control signal in response to the output voltage of said phase discriminator circuit and to control said switching gate by means of said control signal to ensure that said transformed chrominance signal will be applied to at least one of said first and second demodulators with predetermined switched segments and their replicas. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46064201A JPS5226418B2 (en) | 1971-08-23 | 1971-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES406062A1 true ES406062A1 (en) | 1975-08-16 |
Family
ID=13251203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES406062A Expired ES406062A1 (en) | 1971-08-23 | 1972-08-23 | Decoding systems for colour television receivers |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS5226418B2 (en) |
| AT (1) | AT324457B (en) |
| AU (1) | AU468895B2 (en) |
| BE (1) | BE787867A (en) |
| BR (1) | BR7205775D0 (en) |
| CH (1) | CH547046A (en) |
| DD (1) | DD101079A5 (en) |
| DK (1) | DK145899C (en) |
| ES (1) | ES406062A1 (en) |
| FI (1) | FI55740C (en) |
| GB (1) | GB1401678A (en) |
| IT (1) | IT964188B (en) |
| NL (1) | NL7211461A (en) |
| NO (1) | NO139584C (en) |
| SE (1) | SE373722B (en) |
| ZA (1) | ZA725695B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60125606A (en) * | 1983-12-12 | 1985-07-04 | フジタ工業株式会社 | High-toughness ferro-cement board |
-
1971
- 1971-08-23 JP JP46064201A patent/JPS5226418B2/ja not_active Expired
-
1972
- 1972-08-18 ZA ZA725695A patent/ZA725695B/en unknown
- 1972-08-18 AU AU45731/72A patent/AU468895B2/en not_active Expired
- 1972-08-21 GB GB3883772A patent/GB1401678A/en not_active Expired
- 1972-08-22 SE SE7210872A patent/SE373722B/en unknown
- 1972-08-22 NO NO3002/72A patent/NO139584C/en unknown
- 1972-08-22 CH CH1239672A patent/CH547046A/en not_active IP Right Cessation
- 1972-08-22 DK DK415272A patent/DK145899C/en not_active IP Right Cessation
- 1972-08-22 NL NL7211461A patent/NL7211461A/xx unknown
- 1972-08-23 IT IT28422/72A patent/IT964188B/en active
- 1972-08-23 BR BR005775/72A patent/BR7205775D0/en unknown
- 1972-08-23 ES ES406062A patent/ES406062A1/en not_active Expired
- 1972-08-23 FI FI2341/72A patent/FI55740C/en active
- 1972-08-23 DD DD165209A patent/DD101079A5/xx unknown
- 1972-08-23 AT AT726672A patent/AT324457B/en not_active IP Right Cessation
- 1972-08-23 BE BE787867A patent/BE787867A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BR7205775D0 (en) | 1973-08-23 |
| CH547046A (en) | 1974-03-15 |
| GB1401678A (en) | 1975-07-16 |
| DE2241485B2 (en) | 1976-07-08 |
| NO139584B (en) | 1978-12-27 |
| ZA725695B (en) | 1973-05-30 |
| IT964188B (en) | 1974-01-21 |
| JPS5226418B2 (en) | 1977-07-14 |
| AU4573172A (en) | 1974-02-21 |
| NL7211461A (en) | 1973-02-27 |
| SE373722B (en) | 1975-02-10 |
| DK145899C (en) | 1983-09-19 |
| DD101079A5 (en) | 1973-10-12 |
| FI55740C (en) | 1979-09-10 |
| AU468895B2 (en) | 1976-01-29 |
| JPS4830821A (en) | 1973-04-23 |
| NO139584C (en) | 1979-04-04 |
| DK145899B (en) | 1983-04-05 |
| AT324457B (en) | 1975-09-10 |
| FI55740B (en) | 1979-05-31 |
| DE2241485A1 (en) | 1973-03-08 |
| BE787867A (en) | 1972-12-18 |
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