JPS5780883A - Rotary head type magnetic picture recording and reproducing device - Google Patents
Rotary head type magnetic picture recording and reproducing deviceInfo
- Publication number
- JPS5780883A JPS5780883A JP55156901A JP15690180A JPS5780883A JP S5780883 A JPS5780883 A JP S5780883A JP 55156901 A JP55156901 A JP 55156901A JP 15690180 A JP15690180 A JP 15690180A JP S5780883 A JPS5780883 A JP S5780883A
- Authority
- JP
- Japan
- Prior art keywords
- sink
- pulse
- pseudo
- pulses
- time
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
Landscapes
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE:To prevent the pitching of a picture, by taking out specific head switching pulses different in V sink position in the tape moving section and by changing the delay time of a pseudo V pulse delay circuit by these pulses. CONSTITUTION:A signal indicating the rotation phase of a rotary head cylinder 1 is applied to an FF2 for head switching to generate a head switching pulse (b). This pulse (b) is delayed by a monostable multivibrator 13 for pseudo V sink where the delay time is varied, and the delay pulse is mixed as a pseudo V sink with a reproduced video signal by a mixing circuit 14. Pulses are extracted from pulses (b) in the order predetermined in an output time (a) of a motor driving memory 5 by a frequency division processing circuit 15. That is, the second pulse (c) and the third pulse (d) are extracted and are applied to the monostable multivibrator 13 for pseudo V sink, and in this time, the delay time of the monostable multivibrator 13 for pseudo V sink is changed by the time variation of the reproducing V sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55156901A JPS5780883A (en) | 1980-11-06 | 1980-11-06 | Rotary head type magnetic picture recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55156901A JPS5780883A (en) | 1980-11-06 | 1980-11-06 | Rotary head type magnetic picture recording and reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5780883A true JPS5780883A (en) | 1982-05-20 |
Family
ID=15637868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55156901A Pending JPS5780883A (en) | 1980-11-06 | 1980-11-06 | Rotary head type magnetic picture recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5780883A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5544211A (en) * | 1978-09-22 | 1980-03-28 | Hitachi Ltd | Video recording and reproducing unit |
| JPS5544215A (en) * | 1978-09-22 | 1980-03-28 | Hitachi Ltd | Video recording and reproducing unit |
| JPS55140377A (en) * | 1979-04-20 | 1980-11-01 | Sony Corp | Video signal reproducing system |
-
1980
- 1980-11-06 JP JP55156901A patent/JPS5780883A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5544211A (en) * | 1978-09-22 | 1980-03-28 | Hitachi Ltd | Video recording and reproducing unit |
| JPS5544215A (en) * | 1978-09-22 | 1980-03-28 | Hitachi Ltd | Video recording and reproducing unit |
| JPS55140377A (en) * | 1979-04-20 | 1980-11-01 | Sony Corp | Video signal reproducing system |
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