GB1399523A - Colour television receiver - Google Patents
Colour television receiverInfo
- Publication number
- GB1399523A GB1399523A GB2742672A GB2742672A GB1399523A GB 1399523 A GB1399523 A GB 1399523A GB 2742672 A GB2742672 A GB 2742672A GB 2742672 A GB2742672 A GB 2742672A GB 1399523 A GB1399523 A GB 1399523A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rectangular wave
- signal
- colour
- circuit
- blanking period
- 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)
Abstract
1399523 Colour television MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 12 June 1972 [22 June 1971 (2)] 27426/72 Heading H4F A PAL-switch in a colour television receiver is controlled in phase by the circuit of Fig. 2 receiving the received colour bursts at 11, the bursts being amplified at 13 and passed via a detector 14 and amplifiers 15, 16 to produce a rectangular wave output during each vertical blanking period, the trailing edge of this rectangular wave coinciding with the occurrence of the first colour burst following the vertical blanking period, the rectangular wave being differentiated at 17 and the positive pulses eliminated at 18 to provide a negative pulse coinciding with the first burst (at +135 degree phase relative to the B-Y modulation axis) following each vertical blanking period. In a further embodiment (Fig. 5, not shown) the rectangular wave is fed to a NOR circuit (26) which also receives a signal derived by integrating the synchronizing signal, shaping this integrated signal and integrating the shaped signal. The output of the NOR circuit is passed via a differentiator and diode to produce an output signal as in Fig. 2.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4550771A JPS5219409B1 (en) | 1971-06-22 | 1971-06-22 | |
| JP4550671A JPS5221332B1 (en) | 1971-06-22 | 1971-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1399523A true GB1399523A (en) | 1975-07-02 |
Family
ID=26385512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2742672A Expired GB1399523A (en) | 1971-06-22 | 1972-06-12 | Colour television receiver |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2230296C3 (en) |
| GB (1) | GB1399523A (en) |
| NL (1) | NL7208476A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5813045B2 (en) * | 1976-01-30 | 1983-03-11 | ソニー株式会社 | Master-slave flip-flop circuit phase inversion circuit |
-
1972
- 1972-06-12 GB GB2742672A patent/GB1399523A/en not_active Expired
- 1972-06-21 DE DE19722230296 patent/DE2230296C3/en not_active Expired
- 1972-06-21 NL NL7208476A patent/NL7208476A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2230296C3 (en) | 1975-05-15 |
| DE2230296B2 (en) | 1974-09-26 |
| DE2230296A1 (en) | 1972-12-28 |
| NL7208476A (en) | 1972-12-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |