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公开(公告)号：JP2001167412A
公开(公告)日：2001-06-22
申请号：JP34722199
申请日：1999-12-07
Applicant: SONY CORP
Inventor： NAGAI NOBUYUKI , OSUE TADASHI
IPC: G11B5/41
Abstract: PROBLEM TO BE SOLVED: To provide a compact cleaning means for recording/reproducing magnetic head not consuming excess electric power. SOLUTION: In the cleaning means 7 for recording/reproducing magnetic head, which performs cleaning by coming into contact with the recording/ reproducing magnetic heads 3, 3 which are arranged on a head drum 2 and are moved on the circular locus, a contact member 8 directly coming into contact with the magnetic heads and a contact/uncontact means 12 which comes into contact with and is separated from the contact member to and from the magnetic heads are provided. In the contact/uncontact means, a dynamic lift is generated by the flow of air generated by the rotation of the head drum to separate the contact member from the magnetic heads.
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公开(公告)号：JP2001134915A
公开(公告)日：2001-05-18
申请号：JP31230699
申请日：1999-11-02
Applicant: SONY CORP
Inventor： OSUE TADASHI , SHIRAI TOSHIO
Abstract: PROBLEM TO BE SOLVED: To increase the recording density of a magnetic tape by changing tape/head relative speed, and to increase recording density by solving a problem due to the increase of the tape/head relative speed. SOLUTION: This device is provided with a pair of recording heads 4A and 4B having different azimuth angles and arranged apart with a center angle of 180 deg., and a second recording head 5A arranged on the same position as that of one recording head 4B of the pair of recording heads in a peripheral direction separated by 5.5 μm in the height direction of a rotary drum 1, and having an azimuth angle different from that of one recording head 4B. A first mode is formed by the pair of recording heads separated from each other with the center angle of 180 deg., and a second mode is formed by the two recording heads on the same position in the peripheral direction.
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公开(公告)号：JP2001043587A
公开(公告)日：2001-02-16
申请号：JP21564099
申请日：1999-07-29
Applicant: SONY CORP
Inventor： KABAYA YOSHITERU , OSUE TADASHI
Abstract: PROBLEM TO BE SOLVED: To perform highly accurate tracking control. SOLUTION: A lead pin 14 and a piezoelectric actuator are provided on a rotary drum 10, the piezoelectric actuator being adapted for driving the lead pin in a direction roughly perpendicular to the traveling direction of a tape recording medium. By driving the lead pin 14 according to a servo signal detected by a second head 13b, the tracking position of a recording/reproducing head 13 with respect to the tape recording medium is adjusted.
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公开(公告)号：JPH11259834A
公开(公告)日：1999-09-24
申请号：JP6168998
申请日：1998-03-12
Applicant: SONY CORP
Inventor： OSUE TADASHI , SHIRAI TOSHIO , KABAYA YOSHITERU
Abstract: PROBLEM TO BE SOLVED: To provide a rotary drum device and the magnetic recording and reproducing device of a helical scanning system using an MR (magnetoresistive effect) head as a magnetic head for reproduction. SOLUTION: This rotary drum device 1 is provided with a cylindrical rotary drum 3, an inductive magnetic head 5 mounted on the rotary drum so as to project at least a part from the outer peripheral part of the rotary drum and a magnetoresistive effect magnetic head 6 mounted on the rotary drum so as to project at least a part from the outer peripheral part of the rotary drum. Then, the projection amount of the magnetoresistive effect magnetic head 6 from the outer peripheral part of the rotary drum is smaller than the projection amount of the inductive type magnetic head 5 from the outer peripheral part of the rotary drum.
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公开(公告)号：JPH10334433A
公开(公告)日：1998-12-18
申请号：JP14279997
申请日：1997-05-30
Applicant: SONY CORP
Inventor： OSUE TADASHI
Abstract: PROBLEM TO BE SOLVED: To make a two-channel recording mode and a multiple channel recording mode compatible in one set of a device by using recording heads of the multiple of two. SOLUTION: This device is provided with a head drum 11, one pair of magnetic heads W1+, W2- which are provided adjacently with each other along the rotational direction of the head drum 11 and have a head width Hw and one pair of magnetic heads W1-, W2+ which are provided adjacently to the recording head W2- and have a head width Hw/2 and the recording heads W1+, W2-, W1-, W2+ are arranged on a common line La supposed along the rotational direction of the head drum 11 so that the upper edge of the recording head W1+, the upper edge of the recording head W1- are respectively lined up with the lower edge of the recording head W2- and the lower edge of the recording head W2+. Then, information by the recording heads W1-, W2+ are overlappingly recorded on both sides of the boundary line of recording tracks precedingly recorded on a tape by the recording heads W1+, W2-.
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Patent Agency Ranking86.发明专利
公开(公告)号：JPH10233013A
公开(公告)日：1998-09-02
申请号：JP10950697
申请日：1997-04-25
Applicant: SONY CORP
Inventor： OSUE TADASHI , SHIRAI TOSHIO , IKEGAMI TOMOHIRO
Abstract: PROBLEM TO BE SOLVED: To enhance the reliability of a signal system and non-contact transmission of a power source by equipping a rotor core cross talk preventing part between rotor core power source wiring part and rotor core signal wiring part and a stator core cross talk preventing part between the rotor core power source wiring part and a stator core signal wiring part, a stator core power source wiring part and the stator core signal wiring part and also the stator core power source wiring part and the stator core signal wiring part. SOLUTION: Two areas of a power source area of a power transmission ring PR and a signal area of a regenerative signal transmission ring RR and a write signal transmission ring WR are separately provided in a rotary transformer T. These two areas are separated by an area of the cross talk preventing part 100 of a short ring SR. This short ring SR is applied to the cross talk preventing part of the rotor core 30 and the cross talk preventing part of the stator core 20 respectively for preventing cross talk between their respective two areas of the power source area of the power transmission ring PR and the signal area of the regenerative signal transmission ring RR and the write signal transmission ring WR.
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公开(公告)号：JPH09237485A
公开(公告)日：1997-09-09
申请号：JP6751696
申请日：1996-02-29
Applicant: SONY CORP
Inventor： OSUE TADASHI
Abstract: PROBLEM TO BE SOLVED: To improve the reliability as a recording/reproducing system by eliminating the error of data read out from a nonvolatile memory which is provided on a tape cassette. SOLUTION: The correct data are fetched to the side of recording/reproducing device by constituting in such a manner that the data are read out again from the nonvolatile memory (F101-F105) in the case the error of code is detected in accordance with the error detecting code, which is added to the data to be housed in the nonvolatile memory, at the time when the data of the nonvolatile memory are read out by the recording/reproducing device.
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公开(公告)号：JPH07235027A
公开(公告)日：1995-09-05
申请号：JP2653894
申请日：1994-02-24
Applicant: SONY CORP
Inventor： OSUE TADASHI
Abstract: PURPOSE:To improve the recording density of main signal by realizing the reproduction for checking at the time of recording without generation of crosstalk and also efficiently reproducing search signal. CONSTITUTION:Two recording heads HW1 and HW2 are constituted by forming into a double azimuth head by very closely providing two gaps on a rotary drum D. A 1st reproducing head part consisting of reproducing heads HR1 and HR2 is provided on the rotary drum D so as to make the angle of 90 deg. counterclockwise to the recording heads HW1 and HW2. A 2nd reproducing head part consisting of reproducing heads HR3 and HR4 is provided on the rotary drum D so as to make the angle of 90 deg. clockwise to the recording heads HW1 and HW2. Then, each reproducing head part is arranged at an equal interval since the 1st reproducing head part is formed on the rotary drum D facing oppositely to the 2nd reproducing head part so as to make the angle of 180 deg., and each reproducing head is allowed to be a plural number.
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公开(公告)号：JPH0750002A
公开(公告)日：1995-02-21
申请号：JP21238193
申请日：1993-08-03
Applicant: SONY CORP
Inventor： OSUE TADASHI , HIRAMOTO TAKAO
Abstract: PURPOSE:To achieve the high recording speed of recording data with the simple constitution with regard to a magnetic recording and reproducing apparatus, which is applied in the external recording apparatus of a computer. CONSTITUTION:The running speed of a magnetic tape 4 is set at the speed, which is (n) times of a reference running speed with respect to a rotary drum 19, on which (n) pieces or (n) pairs of recording magnetic heads 18A-18D are mounted and which is rotated at the constant speed. Thus, the forming speed of a magnetic track can be set at (n) times in comparison with the case wherein one or one pair of the magnetic head is mounted on the rotary drum 19 and a magnetic tape is moved at the reference running speed.
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公开(公告)号：JPH076311A
公开(公告)日：1995-01-10
申请号：JP17125493
申请日：1993-06-16
Applicant: SONY CORP
Inventor： OSUE TADASHI
Abstract: PURPOSE:To simplify a device constitution by providing a specified difference of level between two sets of magnetic heads whose head widths are larger than a track pitch and making the following magnetic head scan projectingly from a recording track formed by the leading magnetic head. CONSTITUTION:The same head width Tw is selected for magnetic heads A to D and a value for the width Tw is selected larger by specified amount than a track pitch Tp. Further, as to the heads A and B, the head B of a negative azimuth angle is arranged with a difference of level by the pitch Tp against the head A of a positive azimuth angle. Thus, a part of an area scanned by the leading heads at the time of recording is overwritten and recording tracks TA and TB are formed by the sequential pitch Tp. The heads C and D are arranged having a difference of level (m+2Tp) larger by a specified amount (m) against a distance twice as large as the pitch Tp. Recording tracks having azimuth angles opposite to those formed by the heads A and B are scanned by the heads C and D by straddling these tracks.
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