JPS5683814A - Magnetic recording and reproducing device - Google Patents
Magnetic recording and reproducing deviceInfo
- Publication number
- JPS5683814A JPS5683814A JP16224679A JP16224679A JPS5683814A JP S5683814 A JPS5683814 A JP S5683814A JP 16224679 A JP16224679 A JP 16224679A JP 16224679 A JP16224679 A JP 16224679A JP S5683814 A JPS5683814 A JP S5683814A
- Authority
- JP
- Japan
- Prior art keywords
- heads
- point
- azimuth angles
- ch1a
- ch1b
- 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
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
PURPOSE: To give compatibility with the conventional system and make the device small-sized and make special reproducing possible, by arranging four magnetic heads at interval 90° on the rotary cylinder and by equalizing azimuth angles of heads at 180° to each other and by causing azimuth angles of adjacent heads at 90° to differ from one another and by forming one field of the TV signal in range 270°.
CONSTITUTION: Four video heads CH1AWCH2B are provided at interval 90° on rotary cylinder 2, and azimuth angles of CH1A and CH1B are equalized to that of conventional head CH2, and azimuth angles of CH2A and CH2B are equalized to that of conventional head CH2. The recording current is applied to CH1A while it passes the range of 270° between point (a) and point (d). When heads CH1A reaches point (d), the recording current is applied to CH2A which has reachesd point (a). After that, CH1B and CH2B are operated in order. If length between points (a) and (d) is set to the same value as length l between O and O' of the conventional device, compatibility with the conventional device is obtained and the device is small-size. Four heads can be utilized to perform special reproducing.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16224679A JPS5683814A (en) | 1979-12-13 | 1979-12-13 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16224679A JPS5683814A (en) | 1979-12-13 | 1979-12-13 | Magnetic recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5683814A true JPS5683814A (en) | 1981-07-08 |
Family
ID=15750765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16224679A Pending JPS5683814A (en) | 1979-12-13 | 1979-12-13 | Magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5683814A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6379480A (en) * | 1986-09-24 | 1988-04-09 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
JPS6379482A (en) * | 1986-09-24 | 1988-04-09 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
JPS6416185A (en) * | 1987-07-10 | 1989-01-19 | Mitsubishi Electric Corp | Magnetic recording and reproducing device for television supervision |
JPS6427001A (en) * | 1988-04-13 | 1989-01-30 | Sanyo Electric Co | Magnetic recording and reproducing machine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5489612A (en) * | 1977-12-27 | 1979-07-16 | Sony Corp | Magnetic recorder and reproducer |
-
1979
- 1979-12-13 JP JP16224679A patent/JPS5683814A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5489612A (en) * | 1977-12-27 | 1979-07-16 | Sony Corp | Magnetic recorder and reproducer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6379480A (en) * | 1986-09-24 | 1988-04-09 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
JPS6379482A (en) * | 1986-09-24 | 1988-04-09 | Victor Co Of Japan Ltd | Magnetic recording and reproducing device |
JPS6416185A (en) * | 1987-07-10 | 1989-01-19 | Mitsubishi Electric Corp | Magnetic recording and reproducing device for television supervision |
JPS6427001A (en) * | 1988-04-13 | 1989-01-30 | Sanyo Electric Co | Magnetic recording and reproducing machine |
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