JPS5683814A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

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
Application number
JP16224679A
Other languages
Japanese (ja)
Inventor
Shinichi Harazono
Hideki Sakumoto
Toshinori Morikawa
Kimimasa Shibata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16224679A priority Critical patent/JPS5683814A/en
Publication of JPS5683814A publication Critical patent/JPS5683814A/en
Pending legal-status Critical Current

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
JP16224679A 1979-12-13 1979-12-13 Magnetic recording and reproducing device Pending JPS5683814A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5489612A (en) * 1977-12-27 1979-07-16 Sony Corp Magnetic recorder and reproducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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