GB1341326A - Colour television receivers - Google Patents
Colour television receiversInfo
- Publication number
- GB1341326A GB1341326A GB5272571A GB5272571A GB1341326A GB 1341326 A GB1341326 A GB 1341326A GB 5272571 A GB5272571 A GB 5272571A GB 5272571 A GB5272571 A GB 5272571A GB 1341326 A GB1341326 A GB 1341326A
- Authority
- GB
- United Kingdom
- Prior art keywords
- demodulator
- signals
- phase
- signal
- fed
- 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
- H04N11/00—Colour television systems
- H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
- H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
- H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
- H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system
- H04N11/165—Decoding means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
1341326 Colour television receiver SONY CORP 12 Nov 1971 [17 Nov 1970] 52725/71 Heading H4F A PAL colour television signal demodulator comprises a one-line delay line 5 and a switch 2 operated at the end of every line period by a flip-flop 6 receiving horizontal sync pulses. The signals at terminals 7 and 9 each have constant modulation axis phases and are fed to demodulators 8, 10 respectively. A reference signal in phase with the bursts in one of the signals at terminals 7, 9 is fed to one demodulator and a signal of opposite phase is fed to the other demodulator, the resulting signals being mattrixed at 20. As shown in, Fig. 3, the bursts in the signal at terminal 7 are separated by a burst gate 15 and control the phase of oscillator 18 which feeds demodulator 8 and phase inverter 19. In an alternative embodiment burst gate 15 receives signals from band pass amplifier 1 via a switch controlled by flip-flop 6 to pass every second received line to the burst gate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10128670A JPS502329B1 (en) | 1970-11-17 | 1970-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1341326A true GB1341326A (en) | 1973-12-19 |
Family
ID=14296598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5272571A Expired GB1341326A (en) | 1970-11-17 | 1971-11-12 | Colour television receivers |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS502329B1 (en) |
| AT (1) | AT322019B (en) |
| CH (1) | CH528191A (en) |
| DE (1) | DE2156290C3 (en) |
| GB (1) | GB1341326A (en) |
| IT (1) | IT941181B (en) |
| NL (1) | NL7115750A (en) |
| NO (1) | NO133990C (en) |
| SE (1) | SE365925B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53133325A (en) * | 1977-04-27 | 1978-11-21 | Hitachi Ltd | Pal-system color demodulation circuit |
-
1970
- 1970-11-17 JP JP10128670A patent/JPS502329B1/ja active Pending
-
1971
- 1971-11-12 GB GB5272571A patent/GB1341326A/en not_active Expired
- 1971-11-12 DE DE19712156290 patent/DE2156290C3/en not_active Expired
- 1971-11-16 NL NL7115750A patent/NL7115750A/xx unknown
- 1971-11-16 NO NO422371A patent/NO133990C/no unknown
- 1971-11-16 CH CH1659671A patent/CH528191A/en not_active IP Right Cessation
- 1971-11-16 AT AT990471A patent/AT322019B/en not_active IP Right Cessation
- 1971-11-16 SE SE1463771A patent/SE365925B/xx unknown
- 1971-11-17 IT IT3124371A patent/IT941181B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| JPS502329B1 (en) | 1975-01-25 |
| SE365925B (en) | 1974-04-01 |
| NO133990B (en) | 1976-04-20 |
| NL7115750A (en) | 1972-05-19 |
| DE2156290B2 (en) | 1974-01-24 |
| CH528191A (en) | 1972-09-15 |
| IT941181B (en) | 1973-03-01 |
| NO133990C (en) | 1976-07-28 |
| DE2156290A1 (en) | 1972-05-31 |
| AT322019B (en) | 1975-04-25 |
| DE2156290C3 (en) | 1974-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |