JPS5690684A - Video signal regenerator - Google Patents
Video signal regeneratorInfo
- Publication number
- JPS5690684A JPS5690684A JP16863979A JP16863979A JPS5690684A JP S5690684 A JPS5690684 A JP S5690684A JP 16863979 A JP16863979 A JP 16863979A JP 16863979 A JP16863979 A JP 16863979A JP S5690684 A JPS5690684 A JP S5690684A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- supplied
- memory means
- regenerated
- video 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/93—Regeneration of the television signal or of selected parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE:To obtain a variable-speed-mode regenerated signal free from noises, by storing a memory means with the digital video signal that corresponds to a part having an invariably large S/N ratio. CONSTITUTION:A regenerated signal from regenerative amplifier 2 is suppied to envelope detecting circuit 9, whose detection output is supplied to switching signal generating circuit 10 and a switching signal which is the output of circuit 10 is supplied to switch means 7. Thus, level detecting means 8 is constituted. When the level of the variable-speed-mode regenerated signal is greater than a reference value the regenerated signal is supplied as a write signal to memory means 1 and when smaller, a readout signal from memory means 1 is supplied as a write signal to memory means 1. Thus, switch means 7 is change over.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16863979A JPS5690684A (en) | 1979-12-25 | 1979-12-25 | Video signal regenerator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16863979A JPS5690684A (en) | 1979-12-25 | 1979-12-25 | Video signal regenerator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5690684A true JPS5690684A (en) | 1981-07-22 |
Family
ID=15871761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16863979A Pending JPS5690684A (en) | 1979-12-25 | 1979-12-25 | Video signal regenerator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5690684A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6037890A (en) * | 1983-08-10 | 1985-02-27 | Victor Co Of Japan Ltd | Magnetic reproducing device |
WO1987007461A1 (en) * | 1986-05-28 | 1987-12-03 | Mitsubishi Denki Kabushiki Kaisha | Image reproducing apparatus |
JPS6370676A (en) * | 1986-09-12 | 1988-03-30 | Mitsubishi Electric Corp | Video recording and reproducing device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5341921A (en) * | 1976-09-18 | 1978-04-15 | Bosch Gmbh Robert | Method of reproducing video signals recorded on respective tracks of recording carrier |
JPS5462719A (en) * | 1977-10-27 | 1979-05-21 | Nec Corp | Playback system for still and slow-motion pictures |
-
1979
- 1979-12-25 JP JP16863979A patent/JPS5690684A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5341921A (en) * | 1976-09-18 | 1978-04-15 | Bosch Gmbh Robert | Method of reproducing video signals recorded on respective tracks of recording carrier |
JPS5462719A (en) * | 1977-10-27 | 1979-05-21 | Nec Corp | Playback system for still and slow-motion pictures |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6037890A (en) * | 1983-08-10 | 1985-02-27 | Victor Co Of Japan Ltd | Magnetic reproducing device |
WO1987007461A1 (en) * | 1986-05-28 | 1987-12-03 | Mitsubishi Denki Kabushiki Kaisha | Image reproducing apparatus |
US5003406A (en) * | 1986-05-28 | 1991-03-26 | Mitsubishi Denki Kabushiki Kaisha | Video image reproducing apparatus which eliminates a noise bar in the image by using a field memory |
JPS6370676A (en) * | 1986-09-12 | 1988-03-30 | Mitsubishi Electric Corp | Video recording and reproducing device |
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