JPS55151877A - Magnetic picture recorder/reproducer - Google Patents
Magnetic picture recorder/reproducerInfo
- Publication number
- JPS55151877A JPS55151877A JP5986979A JP5986979A JPS55151877A JP S55151877 A JPS55151877 A JP S55151877A JP 5986979 A JP5986979 A JP 5986979A JP 5986979 A JP5986979 A JP 5986979A JP S55151877 A JPS55151877 A JP S55151877A
- Authority
- JP
- Japan
- Prior art keywords
- noise
- pulse
- effective
- generator
- given
- 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
- H04N5/78—Television signal recording using magnetic recording
- H04N5/782—Television signal recording using magnetic recording on tape
- H04N5/783—Adaptations for reproducing at a rate different from the recording rate
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Abstract
PURPOSE:To ensure the display of the still picture with no noise, by running the magnetic tape in a minute amount to drive the noise component out of the nondisplay part in case the noise in the reproduced video signal exists at the effective display part when the still picture is reproduced. CONSTITUTION:The command from the still picture reproduction switch is given to stop command circuit 9 to stop the shift of magnetic tape running unit 8. And the noise of reproduced video signal (a) supplied from the other side is detected at noise detector 3 and then applied to comparator 5. On the other hand, head switch signal (b) is applied to the 1st reference phase signal generator 4 which generates the pulse at the phase position corresponding to the nondisplay part as well as to effective screen width pulse generator 10 which produces the pulse featuring the width of the effective screen. Then the noise within the pulse duration of the effective screen of the output is produced at intra-effective noise detector 11 to be applied to OR gate 12. Thus the logic is secured with noncoincidence signal (e) delivered from comparator 5 and then applied to the 2nd reference phase signal generator 6 connected to generator 4 to produce the pulse. Using this pulse, the control is given to the gate circuit, and the minute running command is given to unit 8 via the output of circuit 7 to drive the noise at the effective display part out to the nondisplay part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5986979A JPS55151877A (en) | 1979-05-15 | 1979-05-15 | Magnetic picture recorder/reproducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5986979A JPS55151877A (en) | 1979-05-15 | 1979-05-15 | Magnetic picture recorder/reproducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55151877A true JPS55151877A (en) | 1980-11-26 |
Family
ID=13125597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5986979A Pending JPS55151877A (en) | 1979-05-15 | 1979-05-15 | Magnetic picture recorder/reproducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55151877A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62166672A (en) * | 1986-01-20 | 1987-07-23 | Hitachi Ltd | Slow-motion device for magnetic recording and reproducing device |
-
1979
- 1979-05-15 JP JP5986979A patent/JPS55151877A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62166672A (en) * | 1986-01-20 | 1987-07-23 | Hitachi Ltd | Slow-motion device for magnetic recording and reproducing device |
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