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1. 发明专利

JP2007013512A Image recording/reproducing device 有权
标题翻译：图像记录/再现设备
公开(公告)号：JP2007013512A
公开(公告)日：2007-01-18
申请号：JP2005190896
申请日：2005-06-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIRAISHI KOICHI , TSUGI YASUSHI
IPC分类号： H04N7/18 , H04N5/915
摘要： PROBLEM TO BE SOLVED: To provide an image recording/reproducing device for varying the detection interval of an image for movement detection for each camera device. SOLUTION: This image recording/reproducing device is provided with one or more input means for inputting an image signal from an external camera device and a movement detecting means for performing movement detection by detecting the image from the input means with a predetermined detection interval, and comparing the image with the past image. Thus, it is possible to vary the detection interval for each input means. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像记录/再现装置，用于改变每个相机装置的用于移动检测的图像的检测间隔。解决方案：该图像记录/再现装置设置有一个或多个输入装置，用于输入来自外部相机装置的图像信号;以及移动检测装置，用于通过以预定检测来从输入装置检测图像来执行移动检测间隔，并将图像与过去图像进行比较。因此，可以改变每个输入装置的检测间隔。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2010200190A Video monitoring system 有权
标题翻译：视频监控系统
公开(公告)号：JP2010200190A
公开(公告)日：2010-09-09
申请号：JP2009045035
申请日：2009-02-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAEKI TAKASHI , ITO SEIYA , KAZUI MASATO , MIYOSHI MASANORI , OTAWA HISAO , SHIRAISHI KOICHI , SUKEGAWA TAKAISA
IPC分类号： H04N7/18 , G08B13/196 , G08B25/00 , G08B29/04
CPC分类号： G08B13/19604 , G08B13/19602 , G08B13/1961 , G08B29/046
摘要： PROBLEM TO BE SOLVED: To provide a video monitoring system in which maneuvering is highly accurately detected.
SOLUTION: The video monitoring system includes: a first temporal change detection unit for detecting a temporal change in a feature amount of an image captured by an imaging apparatus; a second temporal change detection unit for detecting a temporal change in illuminance detected by an illuminance sensor; and a maneuvering determination unit for detecting maneuvering to the imaging apparatus based on the detected feature amount temporal change and illuminance temporal change.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供高精度检测机动的视频监控系统。视频监控系统包括：第一时间变化检测单元，用于检测由成像设备拍摄的图像的特征量的时间变化; 第二时间变化检测单元，用于检测由照度传感器检测到的照度的时间变化; 以及操纵确定单元，用于基于检测到的特征量时间变化和照度时间变化来检测对成像装置的操纵。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2005184420A Monitored image information recorder-player 有权
标题翻译：监控图像信息记录仪
公开(公告)号：JP2005184420A
公开(公告)日：2005-07-07
申请号：JP2003421952
申请日：2003-12-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIRAISHI KOICHI , TSUGI YASUSHI , AZUMA MASAYUKI
IPC分类号： H04N5/76 , H04N5/915
摘要： PROBLEM TO BE SOLVED: To search and reproduce motion image information with motion detection time information as an index from a huge amount of recorded image information in an image information recorder-player on plural inputs as well as a single input.
SOLUTION: Processing for adding motion detection information from a recording stage is provided, and motion detection time information is separately recorded on a recording medium to improve searching efficiency. When the index-search is performed by means of the motion detection information, the motion detection time is searched, and reproduction is performed from the time information of the recorded image information which has been matched.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：以多个输入的图像信息记录器播放器中的大量记录图像信息的运动检测时间信息作为索引来搜索和再现运动图像信息以及单个输入。解决方案：提供了用于从记录级添加运动检测信息的处理，并且运动检测时间信息被分别记录在记录介质上以提高搜索效率。当通过运动检测信息执行索引搜索时，搜索运动检测时间，并且从匹配的记录图像信息的时间信息中进行再现。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2001101779A BALANCE CORRECTION DEVICE AND OPTICAL DISK DEVICE USING IT 失效
公开(公告)号：JP2001101779A
公开(公告)日：2001-04-13
申请号：JP27378699
申请日：1999-09-28
申请人： HITACHI LTD
发明人： KUMASAKA TAKAYUKI , SHIRAISHI KOICHI , KOBAYASHI HIROAKI , KASHIMURA SHINICHI
IPC分类号： G11B19/20 , F16F15/14 , F16F15/31 , F16F15/32
摘要： PROBLEM TO BE SOLVED: To solve adverse effects that correction balls employed for a conventional balance correction method have sometimes caused at a high speed rotation as one means of balance correction methods having been proposed to suppress vibration of an optical disk due to an unbalanced weight. SOLUTION: In a method of adopting the balance correction mechanism having a torus cavity for housing a plurality of the correction balls for a spindle motor mounted on the optical disk device, the shape of the grooves of then balance correction mechanism is improved such that rolling is a major movement of the correction balls in the torus cavity so as to ensure stable balance correction over a wide variety of number of revolutions. Thus, the vibration of the optical disk device can be reduced for both its horizontal and vertical placing.

5. 发明专利

JP2002208252A DISK DEVICE 失效
公开(公告)号：JP2002208252A
公开(公告)日：2002-07-26
申请号：JP2001003244
申请日：2001-01-11
申请人： HITACHI LTD
发明人： SATO YOSHIHIRO , OYAMA KAZUTO , SHIRAISHI KOICHI
IPC分类号： F16F15/08 , G11B25/04 , G11B33/08
摘要： PROBLEM TO BE SOLVED: To provide a disk device which is capable of suppressing gravity sinking of a supporting mechanism when the mechanism is perpendicularly placed without impairing the vibration absorbability of the mechanism. SOLUTION: The supporting mechanism 11 supporting a member 7 mounted with a motor for rotationally driving a disk-shaped recording medium at another member 9 includes a leg 31 and a fitting body 33 to be fitted to the leg 31. The leg 31 has a columnar portion 35 formed to a columnar shape and collar-like portions 37 which are disposed at both ends of the columnar portion 35 and overhang like a collar. At least the columnar portion 35 is formed of material having elasticity and the fitting body 33 has a width nearly the same as the distance between the opposite surfaces of the collar-like portions 37 of the leg 31 and is form fittably to the leg 31 in the state of enclosing part of the columnar portion 35 of the leg 31. The columnar portion 35 of the leg 31 and the fitting body 33 come into contact with each other at plural points or surfaces in the direction between at least the collar-like portions 37 of the leg 31, by which the stress acting on the columnar portion 35 of the lag 31 having elasticity is dispersed and the compressive deformation of the columnar portion 35 is reduced. The gravity sinking of the supporting mechanism 11 when the mechanism is perpendicularly placed is suppressed without impairing the vibration absorbability of the supporting mechanism 11.

6. 发明专利

JP2001074044A BALANCE CORRECTING DEVICE AND OPTICAL DISK DEVICE USING IT 失效
公开(公告)号：JP2001074044A
公开(公告)日：2001-03-23
申请号：JP25122499
申请日：1999-09-06
申请人： HITACHI LTD
发明人： KUMASAKA TAKAYUKI , SHIRAISHI KOICHI , KOBAYASHI HIROAKI
IPC分类号： G11B17/022 , F16C23/08 , G11B19/20
摘要： PROBLEM TO BE SOLVED: To prevent occurrence of an unnecessary ball change when changing a rotating speed of a spindle motor by inclining a fourth surface outside by θ1 in the direction for separating from a second surface to rotation, and inclining the fourth surface inside by θ2 toward a first surface from an almost central part. SOLUTION: An outer peripheral surface (a fourth surface) 214 being an opposite side surface of a rotary shaft becomes a surface inclining outside by θ1 in the direction for separating from a groove bottom surface (a second surface) 212 and inclining inside by θ2 toward a turntable surface (a first surface) 12 from an almost central part. Thus, since a correcting ball 22 is pressed to an outer peripheral surface by centrifugal force, centrifugal force increases at high speed rotation, push-up force overcomes static friction, and the correcting ball 22 is pushed up up to a position of a central part of the fourth surface 214, so that the correcting ball moves along a V-shaped groove without contacting with the groove bottom surface 212 and the turntable surface 211. Thus, a rolling component rather than a slide becomes dominant in a movement of the correcting ball, and since frictional force is small, the correcting ball can smoothly move to a prescribed position.

7. 发明专利

JP2001286113A DISC UNIT 失效
公开(公告)号：JP2001286113A
公开(公告)日：2001-10-12
申请号：JP2000097811
申请日：2000-03-30
申请人： HITACHI LTD
发明人： KUMASAKA TAKAYUKI , KOBAYASHI HIROAKI , SHIRAISHI KOICHI
IPC分类号： F16C17/10 , F16C33/12 , G11B19/20 , H02K5/167 , H02K21/22
摘要： PROBLEM TO BE SOLVED: To provide a disc unit capable of stably recording or reproducing even in a high-speed rotation. SOLUTION: In a recording-disc reproduction unit having a rotor comprising a shaft to which a turn table is fixed for disposing a recording disc (disc) and a spindle motor comprising a stator having a slide bearing for relatively holding a shat of the rotor, the disc is so configured as not to float up even in a high- speed rotation due to a magnet that faces to the slide bearing and the rotor, and also a suction means between the slide bearing and the magnet.

8. 发明专利

JP2001236720A OPTICAL DISK DEVICE HAVING BALANCE CORRECTION MECHANISM 失效
公开(公告)号：JP2001236720A
公开(公告)日：2001-08-31
申请号：JP2000045083
申请日：2000-02-17
申请人： HITACHI LTD
发明人： KUMASAKA TAKAYUKI , SHIRAISHI KOICHI , KOBAYASHI HIROAKI , YASUJIMA TOSHIYUKI , IGARASHI SHIGEMI
IPC分类号： G11B19/20 , H02K7/04 , H02K21/22 , H02K29/00
摘要： PROBLEM TO BE SOLVED: To make the vibration generated from a revolution system including the unbalance of an optical disk medium smaller by enabling the correction of the unbalance of the revolution system, more particularly to prevent the once set balance from being lost even when passing an external vibration or resonance point so as to stably maintain the balance even at various revolutions frequencies. SOLUTION: The balance correction mechanism having a drive means for rotationally driving the optical disk and a plurality of correction balls having annular orbits around the revolving shaft of this drive means on a plane perpendicular to this revolving shaft are provided with an annular magnet and radially movable magnetic members formed by dividing the toric member to a plurality on the revolving shaft side of the annular orbits described above. The correction balls are fixed by moving the magnetic members to the outer peripheral side by centrifugal force during the rotation of the disk.

9. 发明专利

JP2001012556A BALANCE CORRECTING DEVICE AND OPTICAL DISK DEVICE USING IT 失效
公开(公告)号：JP2001012556A
公开(公告)日：2001-01-16
申请号：JP18725099
申请日：1999-07-01
申请人： HITACHI LTD
发明人： KUMASAKA TAKAYUKI , SHIRAISHI KOICHI , SHIBATA MITSURU , KASHIMURA SHINICHI , KOBAYASHI HIROAKI , OYAMA KAZUTO , SATO YOSHIHIRO
IPC分类号： G11B17/022 , F16F15/31 , F16F15/32 , G11B19/20
摘要： PROBLEM TO BE SOLVED: To easily correct a rotational unbalance by supporting a turn table through a plurality of correcting spheres, and coating a rolling control material having large friction on a rolling surface of a correcting sphere, in a balance device for correcting an eccentricity and an eccentric center of gravity of an optical disk after mounting on a driving means. SOLUTION: A balance correcting mechanism 8 of an optical disk device is provided with an annular cavity part 801 including an annular rolling locus of a plurality of correcting spheres 802, and the annular cavity part 801 is provided with an outer peripheral wall 803 formed integratedly with a turn table 701, a receiving disk 804 of the correcting spheres 802, and an inner circumferential surface mounted on the optical disk surface. When rotation of a spindle motor 7 is started and its rotating frequency exceeds a resonance point, a phase is inversed for 180 deg., and thereby, force faced to the direction opposed to a disk unbalance is acted on the correcting spheres 802, and its unbalance is corrected. Grease 806 as a rolling control material for controlling rolling of the correcting spheres 802 is coated on the correcting spheres 802, and smooth correction is carried out.

10. 发明专利

JP2000306321A DISK APPARATUS 失效
公开(公告)号：JP2000306321A
公开(公告)日：2000-11-02
申请号：JP10890899
申请日：1999-04-16
申请人： HITACHI LTD
发明人： SATO YOSHIHIRO , YAMAUCHI YOSHIAKI , OYAMA KAZUTO , KONUMA HIDEYUKI , ICHIKAWA TAKASHI , SHIRAISHI KOICHI
IPC分类号： G11B19/20
摘要： PROBLEM TO BE SOLVED: To suppress an eccentric vibration of a disk and interrupt the vibration transmission to a case by performing a surface treatment with a low-friction material to the surfaces of respective members which may come into contact with each other in order to reduce the friction force between a rotating support member and a structural body supporting it or interference between portions which are in solid contact with each other. SOLUTION: In order to reduce the friction force between a unit mechanism 1 or a flexible printed circuit board 1d to be attached to the unit mechanism 1 and an under cover 2, a fluororesin is applied onto a surface of the under cover 2 that faces the unit mechanism 1, thereby allowing the unit mechanism 1 to freely move. The treatment for providing the under cover 2 with a lower friction realizes almost no vibration transmission at a contact portion between the unit mechanism 1 and the under cover 2, so that no vibration is transmitted to the entire apparatus. In addition, by further performing the treatment for providing a contacting portion between damping legs 1b and the under cover 2 with a low-friction, the whole unit mechanism 1 is allowed to smoothly vibrate in the in-plane direction with respect to a rotation plane of a disk 8.

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