JPS5447426A - Recording system for secam-system color television signal - Google Patents
Recording system for secam-system color television signalInfo
- Publication number
- JPS5447426A JPS5447426A JP11429877A JP11429877A JPS5447426A JP S5447426 A JPS5447426 A JP S5447426A JP 11429877 A JP11429877 A JP 11429877A JP 11429877 A JP11429877 A JP 11429877A JP S5447426 A JPS5447426 A JP S5447426A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- secam
- recording
- isolated
- low frequency
- 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.)
- Granted
Links
Abstract
PURPOSE: To reduce the crosstalk between tracks by making good use of the azimuth effect and thus to ensure the high-density recording, by stepping down the chroma FM modulation wave signal of the SECAM signal and then converting the modulation signal into the low frequency to carry out recording.
CONSTITUTION: Input SECAM signal 1 is isolated 2, 3 into luminance signal Y component and chrominance signal C component respectively. Signal C is stepped down 7 to 1/2 and undergoes frequency conversion 8 via the output of carrier generator 9. Then signal C which is converted to the low frequency via LPF10 is applied to adder 6 and then led to magnetic head 11 and 11' featuring different head cap angles to each other so that an azimuth effect may be obtained in the state under which signal C is piled on the lower side of the FM-modulated luminatnce signal (obtained from isolated 2 signal Y through FM modulator 4 and HPF5 ). And then signal C is recorded on the recording medium. When reproducing, the original SECAM signal is obtained at output terminal 23 via almost opposite procedure to that when recording
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52114298A JPS6023555B2 (en) | 1977-09-21 | 1977-09-21 | SECAM color television signal recording method |
GB7837313A GB2005513B (en) | 1977-09-21 | 1978-09-19 | Magnetic record ing and reproducing apparatus |
FR7826939A FR2404275B1 (en) | 1977-09-21 | 1978-09-20 | MAGNETIC RECORDING AND REPRODUCING APPARATUS |
NL7809567A NL7809567A (en) | 1977-09-21 | 1978-09-20 | MAGNETIC RECORDING AND DISPLAY DEVICE. |
DE19782840969 DE2840969C3 (en) | 1977-09-21 | 1978-09-20 | Recording and playback device for SECAM color television signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52114298A JPS6023555B2 (en) | 1977-09-21 | 1977-09-21 | SECAM color television signal recording method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5447426A true JPS5447426A (en) | 1979-04-14 |
JPS6023555B2 JPS6023555B2 (en) | 1985-06-07 |
Family
ID=14634356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52114298A Expired JPS6023555B2 (en) | 1977-09-21 | 1977-09-21 | SECAM color television signal recording method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6023555B2 (en) |
-
1977
- 1977-09-21 JP JP52114298A patent/JPS6023555B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6023555B2 (en) | 1985-06-07 |
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