JPS5593388A - Recording and reproduction system - Google Patents
Recording and reproduction systemInfo
- Publication number
- JPS5593388A JPS5593388A JP159879A JP159879A JPS5593388A JP S5593388 A JPS5593388 A JP S5593388A JP 159879 A JP159879 A JP 159879A JP 159879 A JP159879 A JP 159879A JP S5593388 A JPS5593388 A JP S5593388A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- circuit
- filter
- gate
- 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
Landscapes
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE: To obtain the good reproduction signal even to the SECAM signal and CCIR black-and-white television signal with the color killer circuit and gate circuit with a simple constitution, without guard band between the recording tracks.
CONSTITUTION: After the chrominance signal (frequency fc) being the output of the band filter 3 passes through the inverse bell filter 19 to obtain flat amplitude characteristics, it is shaped at the limiter 20 and the carrier frequency is divided into fs(=fc/4) with the frequency divider 17. Further, the higher harmonics are eliminated at the low pass filter 21 and it passes through the recording equalizer 21 to obtain the same amplitude characteristics as the output of the band pass filter 3. Furhter, to reject the noise in the signal, the envelope of the chrominance signal being the output of the filter 19 is detected at the envelope detector 29, the gate signal is formed with the gate signal forming circuit 30, and after noise is removed by gating the blanking of the output signal of the circuit 21 with the gate circuit 31, it is superimposed on the luminance signal in frequency modulation fed via the high pass filter 5 and recorded.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54001598A JPS6033359B2 (en) | 1979-01-10 | 1979-01-10 | Recording and playback method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54001598A JPS6033359B2 (en) | 1979-01-10 | 1979-01-10 | Recording and playback method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5593388A true JPS5593388A (en) | 1980-07-15 |
JPS6033359B2 JPS6033359B2 (en) | 1985-08-02 |
Family
ID=11505926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54001598A Expired JPS6033359B2 (en) | 1979-01-10 | 1979-01-10 | Recording and playback method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6033359B2 (en) |
-
1979
- 1979-01-10 JP JP54001598A patent/JPS6033359B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6033359B2 (en) | 1985-08-02 |
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