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公开(公告)号：JPS63209002A
公开(公告)日：1988-08-30
申请号：JP4235087
申请日：1987-02-25
Applicant: SONY CORP
Inventor： YAMASHITA KEITARO , AOKI TAKAMITSU
IPC: G11B5/02
Abstract: PURPOSE:To reduce the adverse effect of dispersion occurring at the time of assembling and to improve the efficiency of a video channel by providing a groove for a flying erase channel on an outer periphery side which is outer than plural grooves for a video channel. CONSTITUTION:The groove 3 for flying erase channel, whose width is narrower than the grooves 2a-2d for video channel, is provided on the peripheral side outer than the grooves 2a-2d which are provided on the inner periphery side of a rotor 1 and a stator 12. Therefore, even in the case of incorporating a rotary transformer in a rotary drum, the adverse effect such as the stagger of cores, etc., which influences the video channel is reduced and at the same time the width of the video channel can be expanded by the width obtained by narrowing the width of the flying erase channel, so that the efficiency of the video channel can be improved.
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公开(公告)号：JPS63149816A
公开(公告)日：1988-06-22
申请号：JP29804886
申请日：1986-12-15
Applicant: SONY CORP
Inventor： YAMASHITA KEITARO , KAWAGUCHI MORIYUKI
Abstract: PURPOSE:To prevent production of chroma flicker by dividing a distance between a head chip edge and a main gap by a recording wavelength and selecting the equal residue as the same rank and combining the heads of the equal rank to form one set of head pair. CONSTITUTION:Lots of head pieces 4A, 4B are produced and a distance (l) from chip edges 6A, 6B to main gaps 5A, 5B is measured to constitute the head pair. That is, the distance (l) is divided by the wavelength lambda of the low frequency conversion chroma signal. The residues Res (l/lambda) being the division of the distance (l) by the wavelength are selected to be the same ranks and lots of heads 4A, 4B are grouped by the ranks. The phase difference sigma between the reproducing signal by the chip edges 6A, 6B and the reproducing signal by the main gaps 5A, 5B is obtained as in equation I. Thus, in using the head pair with equal Res (l/lambda), even when the reproducing signal by the shape effect of the chip edges 6A, 6B is overlapped onto the burst signal reproduced by the main gaps 5A, 5B, the burst signal is fluctuated similarly and no chroma flicker appears.
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公开(公告)号：JPS6371904A
公开(公告)日：1988-04-01
申请号：JP21653286
申请日：1986-09-13
Applicant: SONY CORP
Inventor： YAMASHITA KEITARO
Abstract: PURPOSE:To remarkably reduce the short rings of a rotary transformer and to almost halve the number of grooves of a core by short-circuiting the signal transmission coils of a magnetic head which is not is operating state for the signal transmission coils of the magnetic head that become the same azimuthal angle. CONSTITUTION:A set of magnetic heads H1a and H1b (or magnetic heads H2a and H2b) having the same azimuthal angle and arranged to oppose at 180 deg. do not operate simultaneously even overlapped part is considered. Accordingly, when considering arrangement of signal transmission coils on a rotary transformer, control is made to short-circuit signal transmission coils (fixed) corresponding to unused heads in the set of magnetic heads of the same azimuthal angle and do not operate simultaneously. Thereby, the adverse influences such as mutual interference etc., can be prevented even when the signal transmission coils of a set of heads of the same azimuthal angle are arranged adjacent to each other.
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公开(公告)号：JPS6370902A
公开(公告)日：1988-03-31
申请号：JP21407786
申请日：1986-09-12
Applicant: SONY CORP
Inventor： YAMASHITA KEITARO
Abstract: PURPOSE:To reduce the number of short rings by activating a rotary erasing head within the nonacting period of a magnetic head connected to a specific coil, setting the mounting angular position theta on a rotary transformer of a rotary erasing head within a specific range, and specifying the erasing track width of the rotary erasing head. CONSTITUTION:The rotary erasing head Hfe connected to a signal transmission coil Lfe for erasing is activated only within the nonacting period of a magnetic head connected to a signal transmission coil disposed neighboring the rotary erasing head Hfe itself. Taking the mounting angular position of the magnetic head on the rotary transformer for the reference 0 deg., the mounting angular position of the rotary erasing head theta is denoted as 90 deg.-alpha-beta>=theta>=-90 deg.+alpha+beta, and the erasing track width Tw of the rotary erasing head is denoted as Tw>=8Tp/3 where Tp is the recording track pitch; accordingly, the erasing action is made to be executed twice while a drum rotates three times. As a result, the signal transmission coil Lfe for erasing and the signal transmission coil L1a can be disposed neigh-boring each other on the core of the rotary transformer without necessitating any short ring.
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公开(公告)号：JPS6222316B2
公开(公告)日：1987-05-18
申请号：JP4611478
申请日：1978-04-19
Applicant: SONY CORP
Inventor： MORIO MINORU , KANBARA MASAHIRO , KUBOTA YUKIO , YAMASHITA KEITARO
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Patent Agency Ranking66.发明专利Device and method for reproducing data, and device and method for recording data 审中-公开用于再现数据的设备和方法，以及用于记录数据的设备和方法
公开(公告)号：JP2008171566A
公开(公告)日：2008-07-24
申请号：JP2008093391
申请日：2008-03-31
Inventor： OKADA SHUNJI , YAMASHITA KEITARO
IPC: G11B20/10
Abstract: PROBLEM TO BE SOLVED: To provide a device for reproducing data and a device for recording data, also usable as peripheral devices of a computer (PC). SOLUTION: A disk control unit 10 for controlling a disk mechanism part 1 via a recording/reproducing part 5 is provided. This disk control unit 10 includes a PC interface part 29 for adjusting data transfer with the peripheral part of a PC, an AV signal I/O connection part 31 for connecting the entry/exit of an AV signal to an external camera 51, and a PC/AV signal switching part 27 for selecting the PC interface part 29 and the AV signal entry/exit connection part 31 to transfer data to a buffer control part 26 and an edit control part. The PC interface 29 performs, when a host PC is connected to a connector, the operation to switch the PC/AV signal switching part 27 to the PC side. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供用于再现数据的设备和用于记录数据的设备，其也可用作计算机（PC）的外围设备。 提供了一种用于经由记录/再现部分5控制盘机构部分1的盘控制单元10。 该盘控制单元10包括用于与PC的周边部分调整数据传送的PC接口部分29，用于将AV信号的进入/退出连接到外部照相机51的AV信号I / O连接部分31，以及 PC / AV信号切换部27，用于选择PC接口部分29和AV信号输入/出口连接部分31，以将数据传送到缓冲器控制部分26和编辑控制部分。 当主机PC连接到连接器时，PC接口29执行将PC / AV信号切换部分27切换到PC侧的操作。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007150736A
公开(公告)日：2007-06-14
申请号：JP2005342518
申请日：2005-11-28
Inventor： TANAKA NAOHIRO , KINOSHITA TAKASHI , YAMASHITA KEITARO
CPC classification number: H02N1/006 , H03H9/2426 , H03H9/2463 , H03H9/525
Abstract: PROBLEM TO BE SOLVED: To provide a micro electromechanical device which has a simple element structure and can process an electric signal of a high-frequency range.
SOLUTION: A vibrator element has, on a substrate 11, a plurality of electrodes 12 and 13, and a beam 15 which faces the electrodes 12 and 13 and vibrates by electrostatic driving, and a high-frequency signal is input to and output from a combination of some of the plurality of electrodes 12 and 13 and the beam 15.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：提供一种具有简单元件结构并能够处理高频范围的电信号的微机电装置。 解决方案：振动元件在基板11上具有多个电极12和13以及面向电极12和13并通过静电驱动振动的光束15，并且高频信号被输入到 从多个电极12和13中的一些和光束15的组合输出。版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JPH10302207A
公开(公告)日：1998-11-13
申请号：JP11106697
申请日：1997-04-28
Applicant: SONY CORP
Inventor： OKADA KANZO , YAMASHITA KEITARO , OKADA SHUNJI , KOJIMA NAOTO , NAKAYAMA MASAYUKI
Abstract: PROBLEM TO BE SOLVED: To realize an effective recording and reproducing operation when recording and reproducing a signal using a magnetic head while rotating a magnetic disk at a plurality of different revolutions. SOLUTION: A magnetic disk 2 is rotated at a plurality of different revolutions by a spindle motor 3A, and a signal is recorded and reproduced by a magnetic head. As a reproducing magnetic head, a magnetic head of magneticflux response type having no dependency on a linear velocity is used. As a substrate material of a magnetic disk 2, a ceramic material having a large thermal conductivity is used so as to suppress deformation or the like of the disk due to an impact or an increase in temperature. A system is composed by appropriately combining a floating-type magnetic head or a contacting- type magnetic head with rotating modes, and a running system most appropriate for revolutions of the disk is realized over a sufficiently wide range of the linear velocity. Furthermore, a signal processing operation at a signal processing circuit 5 is changed in accordance with a low speed rotation mode and a high speed rotation mode to obtain an improved S/N ratio or the like.
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公开(公告)号：JPH09182019A
公开(公告)日：1997-07-11
申请号：JP35075195
申请日：1995-12-26
Applicant: SONY CORP
Inventor： YAMASHITA KEITARO
Abstract: PROBLEM TO BE SOLVED: To provide a device which is capable of extracting a typical image from a received video signal and performing a digest record or/and reproduction. SOLUTION: After the broadcast signal received by an antenna 1 is received by a video channel tuner 2, the signal is converted into a digital signal and scene change information, for instance, is detected by a typical image detection circuit 5. Based on the detected scene change information, a video signal is recorded in a storage device 22 and a digest record/reproduction is performed so as to read stored information. The scene change information detecting the typical image is detected by the motion detection of a video frame and useless typical images are extracted by obtaining many detection outputs on the screen in which scenes are gently changed, that is, the screen for which a fade in/out is performed, for instance. This recording/reproducing device is made to obtain the scene change information by the last detection signal when the detection signal is continuous for a prescribed period, and useless record/reproduction is prevented from being performed.
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公开(公告)号：JPH09163299A
公开(公告)日：1997-06-20
申请号：JP34627095
申请日：1995-12-13
Applicant: SONY CORP
Inventor： YAMASHITA KEITARO
Abstract: PROBLEM TO BE SOLVED: To provide the recorder applying digest recording to multichannel broadcast programs onto a small capacity of a recording medium. SOLUTION: After a broadcast program received by an antenna 1 is received by video channel tuners 2a to 2n, the program is converted into a digital signal and representative pattern detection circuits 5a to 5n detect, e.g. scene change information from the digital signal. A microcomputer 20 selects a video signal at least in the unit of one frame based on the detected scene change information and the selected signal is fed to a multiplexer 18 via encoders 8a to 8n and fed to a storage device 22 using a disk or a tape or the like as a recording medium with the selection information. The scene change information is made of image motion detection information, levels of tuners 13a to 13n for an audio signal selecting an audio signal for n broadcast programs are detected to obtain the signal detecting a period when the audio signal is in existence. The recording information is further reduced by selecting only specific channels m among from plural channels n (n>m) and recording the selected channels.
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