JPS5593536A - Video signal recording and reproducing system - Google Patents
Video signal recording and reproducing systemInfo
- Publication number
- JPS5593536A JPS5593536A JP16563478A JP16563478A JPS5593536A JP S5593536 A JPS5593536 A JP S5593536A JP 16563478 A JP16563478 A JP 16563478A JP 16563478 A JP16563478 A JP 16563478A JP S5593536 A JPS5593536 A JP S5593536A
- Authority
- JP
- Japan
- Prior art keywords
- reproducing
- disc
- control circuit
- gain control
- 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.)
- Pending
Links
Landscapes
- Television Signal Processing For Recording (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE: To reproduce uniform good-quality pictures throughout all regions of a disc by controlling a band gain control circuit of reproducing signals according to reproducing positions in respect to reproducing of video signals of the optical video disc.
CONSTITUTION: The reproducing signal from disc 15 is converted to an electric signal by photo detectors 8a and 8b and is inputted to band gain control circuit 101 through adder 9. Meanwhile, the transfer quantity of disc 15 obtained by detection part 110 and the position of optical transfer material I (the part inside the one- dotted broken line) obtained by detection part 112 are converted to DC voltages by circuits 111 and 113 respectively and are added by adder 114 to obtain a DC voltage corresponding to the reproducing position of disc 15. Next, the gain of band gain control circuit 101 is so controlled by this DC voltage that the reproducing signal from disc 15 above may be larger for outside circumference reproducing of disc 15 than that for inside circumference reproducing, thereby compensating the reproducing signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16563478A JPS5593536A (en) | 1978-12-28 | 1978-12-28 | Video signal recording and reproducing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16563478A JPS5593536A (en) | 1978-12-28 | 1978-12-28 | Video signal recording and reproducing system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5593536A true JPS5593536A (en) | 1980-07-16 |
Family
ID=15816081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16563478A Pending JPS5593536A (en) | 1978-12-28 | 1978-12-28 | Video signal recording and reproducing system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5593536A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60197980A (en) * | 1984-03-19 | 1985-10-07 | Sharp Corp | Level correcting circuit of reproducing fm signal of video disk player |
JPS60212872A (en) * | 1984-04-09 | 1985-10-25 | Matsushita Electric Ind Co Ltd | Fm carrier wave reproducing signal correcting device |
-
1978
- 1978-12-28 JP JP16563478A patent/JPS5593536A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60197980A (en) * | 1984-03-19 | 1985-10-07 | Sharp Corp | Level correcting circuit of reproducing fm signal of video disk player |
JPS60212872A (en) * | 1984-04-09 | 1985-10-25 | Matsushita Electric Ind Co Ltd | Fm carrier wave reproducing signal correcting device |
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