专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH06251558A TAPE CLEANER FOR MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH06251558A
公开(公告)日：1994-09-09
申请号：JP4140293
申请日：1993-03-02
申请人： HITACHI LTD
发明人： SASAKI TAKASHI , KAKU NOBUYUKI , MASUDA NORIAKI , HIGUCHI SHIGEMITSU , NIGUCHI YASUYUKI , YOKOO SHOZO , OWADA NOBUYOSHI
IPC分类号： G11B23/50 , G11B15/665
摘要： PURPOSE:To prevent a tape and a tape guide from being damaged by a foreign matter, to prevent the foreign matter from arriving at a drum device and to execute high reliable recording/reproducing. CONSTITUTION:By a supply-side tape cleaner 50 arranged just before a position where the magnetic tape 7 enters the drum device 1 in contact with the magnetized surface side of the tape 7 and a take-up-side tape cleaner 60 arranged just after a position where the tape 7 leaves the drum device 1, foreign matter stuck to the magnetized surface of the tape entering and leaving the drum device 1 is eliminated in the tape traveling of both normal and reverse directions. Thus, the foreign matter can be eliminated not only from the magnetic tape entering the drum device but also from the magnetic tape passed through the lead part of the drum device being the main generating source of the foreign matter to be stuck to the surface of the magnetic tape in a helical scanning system magnetic recording and reproducing device.

2. 发明专利

JPH03283038A TAPE GUIDE FOR MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH03283038A
公开(公告)日：1991-12-13
申请号：JP8070990
申请日：1990-03-30
申请人： HITACHI LTD
发明人： SASAKI TAKASHI , KAKU NOBUYUKI , NIGUCHI YASUYUKI , INUI MASAAKI
IPC分类号： G11B15/61 , G11B15/665
摘要： PURPOSE:To make the tape drive stable and to prevent a tape damage by stopping the drive of a height restriction tape guide arranged in the vicinity of a drum at a head landing side and driving the other tape guide so as to form a tape running path. CONSTITUTION:A magnetic tape 7 is driven from the supply side to the winding side as shown in the arrow A while being regulated by a lead 1c provided to a supply tape guide 11, a tilt guide 12, a guide pin 13, a winding tape guide 14 and a fixed lower drum 1b. Then the supply tape guide 11 is constituted to be driven and the winding tape guide 14 is constituted to be not driven to suppress the increase the drive load up to a drum device. Thus, the occurrence of a curl at a tape guide and the fluctuation of the running height due to a difference of a span on and under the tape between the tilt guide and the tape guide or a deviation of a drive path due to a tolerance of the accuracy of the guide or the like or the like are prevented. Thus, the occurrence of a tape damage is prevented and stable tape running is attained.

3. 发明专利

JP2000023141A MOVING OBJECT MONITORING DEVICE 失效
公开(公告)号：JP2000023141A
公开(公告)日：2000-01-21
申请号：JP18367198
申请日：1998-06-30
申请人： HITACHI LTD
发明人： KONUMA CHIEKO , KOBAYASHI YOSHIKI , TOYOSHIMA SHUJI , NIGUCHI YASUYUKI
IPC分类号： H04N7/18 , G08B13/196
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive moving object monitoring device capable of highly accurately identifying a monitoring object in a short time even in the case of a moving object with extremely little motions in the environment of generating disturbance similar to the moving object of the monitoring object and violently changing illumination. SOLUTION: A/D conversion is performed respectively to the images of three frames inputted by a main body 20 of monitoring device, and a background image preparing part 1000 prepares a short-term background image and a long-term background image from an input image at time ti, input image at time t-1 and input image at time ti-2. A change area is extracted by the input images and the short-term background image and a normalizing function is generated by the input images and the long-term background image so that the object can be highly accurately identified.

4. 发明专利

JPH11355767A IMAGE TRANSMITTER, IMAGE TRANSMISSION SYSTEM, IMAGE TRANSMISSION METHOD AND STORAGE MEDIUM 失效
公开(公告)号：JPH11355767A
公开(公告)日：1999-12-24
申请号：JP15431198
申请日：1998-06-03
申请人： HITACHI LTD
发明人： OKUYAMA YOSHIYUKI , NIGUCHI YASUYUKI
IPC分类号： H04N19/102 , H04N7/24 , H04N19/00 , H04N19/132 , H04N19/136 , H04N19/137 , H04N19/172 , H04N19/196 , H04N19/423 , H04N19/503 , H04N19/587 , H04N19/70
摘要： PROBLEM TO BE SOLVED: To transmit images of high quality at a high speed in an image transmission system for transmitting moving images and still images by using a communication channel of a low bit rate. SOLUTION: This image transmitter 100 samples inputted moving images at a predetermined time interval, converts them to the plural still images and stores the converted plural still images in an image memory 130. Then, an image processor 140 extracts the number of picture elements for which the difference of pixel data values for the respective picture elements at the same coordinates of stored continuously sampled first and second still images is larger than a predetermined value and decides the number of times of reading the stored second still image corresponding to the extracted number. A CPU 110 encodes the respective second still images read for the decided number of times in an image codec module.

5. 发明专利

JPH03256252A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH03256252A
公开(公告)日：1991-11-14
申请号：JP5360990
申请日：1990-03-07
申请人： HITACHI LTD
发明人： INOUE ATSUSHI , KAKU NOBUYUKI , NIGUCHI YASUYUKI , INUI MASAAKI
IPC分类号： G11B15/00 , G11B15/665
摘要： PURPOSE:To prevent the occurrence of traveling malfunction of a tape and flawing of a head by rotating a rotary head drum in a prescribed direction at a prescribed speed after stopping the tape with a tape stopping mechanism under the stopping state of a tape driving mechanism. CONSTITUTION:At the time of shifting from a tape loading completion state to a tape traveling operation state, the rotary head drum 2 is rotated for a while, so as to perform various tape traveling operations. When this standby state is inputted, confirmation is made by a timer as to whether the device is left as it is under the tape loading completion state for more than a prescribed time. Then, when the device is left more than the prescribed time, a pinch roller 16 is operated to pressingly hold the magnetic tape 6 with a capstan 47. Under this state, a drum motor is rotated at a prescribed revolving speed in the direction opposite to the capstan and the pinch roller, and when an FG output of this motor is abnormal, it is decided that the tape sticking to the drum 2 should be taking place, so that the rotation of the motor is stopped, and an alarm is lit to tell the abnormality.

6. 发明专利

JP2003099582A METHOD AND SYSTEM FOR SUPPORTING SITUATION ANALYSIS USING PICTURE DATA 审中-公开
公开(公告)号：JP2003099582A
公开(公告)日：2003-04-04
申请号：JP2002153247
申请日：2002-05-28
申请人： HITACHI LTD
发明人： KONUMA CHIEKO , MURAMATSU SHOJI , KOBAYASHI YOSHIKI , SHOJIMA HIROSHI , USAMI YOSHIAKI , MIYOSHI MASANORI , TAKAHASHI KAZUYA , NIGUCHI YASUYUKI , OOTAWA HISAO
IPC分类号： G06Q30/02 , G06F12/00 , G06Q10/00 , G06Q30/06 , G06Q50/00 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To easily analyze marketing by providing detailed marketing information. SOLUTION: Picture data on an analyzing object is stored in a picture data storing means. The picture data on the analyzing object is connected with the other pieces of information. Concerning information desired to be added to the picture data, the picture data is worked and the picture data and information accompanying it are presented simultaneously. In the form of adding information on the result of sorting a customer picture with the attribute of a new view point for situation analysis to the accompanying information, the picture data is worked. Consequently, the development and fulfillment of a database facilitates performance of analytic work and works for the reduction of a burden on an operator.

7. 发明专利

JP2000023142A PICTURE MONITORING DEVICE 失效
公开(公告)号：JP2000023142A
公开(公告)日：2000-01-21
申请号：JP18367298
申请日：1998-06-30
申请人： HITACHI LTD , SECOM CO LTD
发明人： KONUMA CHIEKO , KOBAYASHI YOSHIKI , TOYOSHIMA SHUJI , NIGUCHI YASUYUKI
IPC分类号： H04N7/18 , G08B13/196
摘要： PROBLEM TO BE SOLVED: To provide a picture monitoring device which executes binarization processing of highly precise in a short time even when there are plural monitor areas of different sensitivity levels under environments where an illumination change is frequent by performing differentiation between a difference picture between images and an adaptive binarization screen and binarizing the difference picture of the adaptive binarization screen. SOLUTION: A binarization screen adjustment part 2000 obtains a minimum luminance or a maximum luminance for every picture element of an input picture and a reference picture, calculates a conversion magnification corresponded for every picture element of a luminance value, and performs sensitivity level adjustment of the binarization screen. A difference picture preparation part 3000 performs difference processing for every picture element of the input picture and the reference picture. A change area extraction part 4000 performs difference/binarization between the difference picture of the difference picture preparation part 3000 and a binarization threshold screen and extracts a change area. An extraction area integration part 5000 generates an integrated area for collecting neighborhood in the extracted area. A object detection part 6000 detects a less similar area as an object of a monitor object.

8. 发明专利

JP2574891B2 失效
公开(公告)号：JP2574891B2
公开(公告)日：1997-01-22
申请号：JP2977389
申请日：1989-02-10
申请人： HITACHI LTD
发明人： KAKU NOBUYUKI , NIGUCHI YASUYUKI
IPC分类号： G11B33/14 , G11B19/02

9. 发明专利

JPH05135452A TAPE LOADING DEVICE 失效
公开(公告)号：JPH05135452A
公开(公告)日：1993-06-01
申请号：JP31961791
申请日：1991-11-08
申请人： HITACHI LTD
发明人： INOUE ATSUSHI , KAKU NOBUYUKI , SASAKI TAKASHI , NIGUCHI YASUYUKI , INAGAKI YASUO
IPC分类号： G11B15/43 , G11B15/665
摘要： PURPOSE:To eliminate an influence of the inertia of a cassette reel and to prevent a damage of a tape when the tape is loaded and unloaded. CONSTITUTION:This device is provided with an arithmetic circuit 110 for calculating the values of a cassette winding radius ratio and inertia ratio of the outputted signals of the FG 108 and 109 of reel motors 104 and 105 and a control circuit 100 for controlling the driving signals of a loading motor or the reel motors 104 and 105.

10. 发明专利

JPH0344855A TAPE LOADING MECHANISM FOR MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH0344855A
公开(公告)日：1991-02-26
申请号：JP17792089
申请日：1989-07-12
申请人： HITACHI LTD
发明人： KAKU NOBUYUKI , INOUE ATSUSHI , NIGUCHI YASUYUKI , INUI MASAAKI
IPC分类号： G11B15/43 , G11B15/22 , G11B15/665
摘要： PURPOSE:To prevent damage to be inflicted on a tape at the time of loading by discriminating the winding diameters of respective reels on a supply side and a take-up side while executing loading operation just after loading is started. CONSTITUTION:A detecting circuit 147 is provided to detect the prescribed section under the loading operation of a driving mechanism and detecting circuits 153 and 154 are provided to detect the rotational angles of driving sources 130 and 159. Further, arithmetic circuits 155 and 156 are provided to calculate the respective tape winding diameters of a supply side reel 4 and a take-up side reel 5 from the signals of the detecting circuits 147, 153 and 154 and driving circuits 157 and 158 are provided to drive the driving sources 130 and 159 corresponding to the output signals of the arithmetic circuits 155 and 156. Accordingly, the winding diameters of the both reels 4 and 5 can be discriminated on the way of loading and the unnecessarily high tension, which is to be caused by the difference of the tape winding diameter is prevented from loading on the reels 4 and 5 at the time of loading. Thus, the damage to the tape can be prevented.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式