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1. 发明专利

JP2006093752A Imaging apparatus 审中-公开
标题翻译：成像设备
公开(公告)号：JP2006093752A
公开(公告)日：2006-04-06
申请号：JP2004272688
申请日：2004-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANAZAWA TORU
IPC分类号： H04N5/232 , H04N5/235 , H04N5/92
摘要： PROBLEM TO BE SOLVED: To provide an imaging apparatus in which deterioration in image quality, e.g. block distortion and mosquito distortion, is suppressed.
SOLUTION: A variation detecting means 13 in a microprocessor 9 detects the stop value every unit time through a stop detection circuit 4 and monitors variation in stop value per unit time at all times. When variation in stop value per unit time exceeds a predetermined level due to abrupt change in illumination conditions, the microprocessor 9 controls an encoding compression circuit 10 to increase encoding rate in order to deal with the volume of video information increased through change in conditions. Consequently, missing or reduction in volume of information is lessened at the time of reproduction and deterioration in image quality, e.g. block distortion and mosquito distortion, can be suppressed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种成像装置，其中图像质量的劣化，例如，阻塞失真和蚊子失真被抑制。解决方案：微处理器9中的变化检测装置13通过停止检测电路4每单位时间检测停止值，并且一直监视每单位时间停止值的变化。当由于照明条件的突然变化，每单位时间的停止值的变化超过预定水平时，微处理器9控制编码压缩电路10以提高编码率，以便处理通过条件改变而增加的视频信息量。因此，在再现时减少信息量的减少或图像质量的劣化，例如，块变形和蚊子变形，可以抑制。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2001313906A DIGITAL CAMERA 失效
公开(公告)号：JP2001313906A
公开(公告)日：2001-11-09
申请号：JP2000132866
申请日：2000-04-27
申请人： HITACHI LTD
发明人： KANAZAWA TORU
IPC分类号： H04N5/225 , H03M7/30 , H04N1/41 , H04N5/243 , H04N5/91 , H04N5/92
摘要： PROBLEM TO BE SOLVED: To suppress the increase of block distortion or mosquito distortion in photographing under low illuminance under which random noise increases when recording an image by coding for compressing the amount of information of image data. SOLUTION: A microprocessor unit 8 restricts the maximum amplification factor of an AGC circuit 3 responding to the compression ratio of the coding set by a user while controlling the amplification factor of the AGC circuit 4 so as to obtain prescribed output, or changes the coding compression ratio of a coding processing circuit 6 corresponding to the amplification factor of the AGC circuit 3.

3. 发明专利

JPH1164558A FUEL ASSEMBLY 失效
公开(公告)号：JPH1164558A
公开(公告)日：1999-03-05
申请号：JP22775297
申请日：1997-08-25
申请人： HITACHI LTD
发明人： KANAZAWA TORU , NISHIDA KOJI , KASHIWAI SHINICHI , ORII AKIHITO , NAGAYOSHI HIROYUKI , CHAGI MASAO
IPC分类号： G21C3/328 , G21C3/326
摘要： PROBLEM TO BE SOLVED: To provide a fuel assembly that can positively improve limit output so as to be able to improve on thermal allowance even in case of aiming at high burn-up of the fuel assembly. SOLUTION: Long-sized fuel rods 1 and short-sized fuel rods 2 shorter in fuel effective length than the long-sized fuel rods 1 are arranged in a square grid shape of nine rows and nine columns, and water rods 3 larger in diameter than each fuel rod are arranged at the center part to form a fuel bundle. A channel box 7 of a square shape is provided to cover the fuel bundle. In a fuel assembly of such constitution, the short-sized fuel rods 2 are arranged one at each outermost peripheral side of the fuel bundle, and it is so constituted as to satisfy the relation of 1.2

4. 发明专利

JPH07143408A PICTURE ELEMENT DEFECT CORRECTION DEVICE FOR VIDEO CAMERA 失效
公开(公告)号：JPH07143408A
公开(公告)日：1995-06-02
申请号：JP28907693
申请日：1993-11-18
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： MUSHA AKIHIRO , NISHIZAWA AKIHITO , KANAZAWA TORU , OTSUBO HIROYASU
IPC分类号： H04N5/232 , H04N5/335 , H04N5/351 , H04N5/367 , H04N5/378
摘要： PURPOSE:To improve the yield of an image pickup element by using a video cameral such as a camera incorporated with an additional function such as electronic shake correction or electronic zooming as well as a camera without any additional function so as to correct a defective picture element of the image pickup element. CONSTITUTION:A defect detection circuit 103 detects a defective picture element and stores it in a storage circuit 104 and a defect correction circuit 105 corrects the defective picture element. However, in the case of occurrence of shake or electronic zooming or the like, a control circuit 106 obtains the information representing it from an image pickup element drive circuit 107 and gives the information to the defect correction circuit 105 and the defect detection circuit 103, in which a defect is corrected and detected correctly.

5. 发明专利

JPH04186192A FUEL SPACER 失效
公开(公告)号：JPH04186192A
公开(公告)日：1992-07-02
申请号：JP31389590
申请日：1990-11-21
申请人： HITACHI LTD
发明人： NISHIDA KOJI , YOKOMIZO OSAMU , KANAZAWA TORU , KASHIWAI SHINICHI , ORII AKIHITO
IPC分类号： G21C3/344
摘要： PURPOSE:To enhance fuel spacer thermal margin and neutron economy, reduce the pressure loss, and facilitate by fabrication by furnishing a number of small holes in a cylindrical cell, fuel supporting projection, a spring, and an outer belt. CONSTITUTION:A number of small holes 3 are bored in the side of a cylindrical cell 1, which should not influence the stream of a coolant, and also a number of holes 3 are opened in the projection 4 for supporting fuel rod and a spring tab 5. This reduces not only neutron economy due to decrease in the metal amount but also the blowdown effect to prevent the liquid film from becoming thin and also increase the thermal margin, and further turbulence of the vapor stream is lesser because of being free from complicated spacer structure to cause drop of the shape pressure loss. Also a number of holes 3 are provided in an outer belt 2, which leads to further enhancement of the neutron economy. Cell 1 fabrication becomes easier by providing a number of holes 3 previously in a pipe as material to cell 1, which is then cut and subjected to a press process.

6. 发明专利

JP2003143471A IMAGING APPARATUS 审中-公开
公开(公告)号：JP2003143471A
公开(公告)日：2003-05-16
申请号：JP2001332773
申请日：2001-10-30
申请人： HITACHI LTD
发明人： KANAZAWA TORU
IPC分类号： G03B7/095 , G03B9/02 , G03B17/12 , H04N5/232 , H04N5/238 , H04N5/92
摘要： PROBLEM TO BE SOLVED: To efficiently limit the picture information quantity to restrain the block or mosquito deformation, even if the background picture moves. SOLUTION: An iris 3 is opened to reduce the field depth, thereby blurring only a background picture, according to the moving speed of a lens 2 detected by a horizontal angular velocity sensor 10 and a vertical angular velocity sensor 11. This lessens the picture information quantity and restrains the block or mosquito deformation, only when the angle of view changers to reduce the effect of inter-frame estimation to result in deterioration of compression. If the lens 2 is at standstill, there is no need of shading off the background to result in that the information quantity of picture data is not unnecessarily cut down.

7. 发明专利

JP2002010132A IMAGE PICKUP APPARATUS 失效
公开(公告)号：JP2002010132A
公开(公告)日：2002-01-11
申请号：JP2000192659
申请日：2000-06-22
申请人： HITACHI LTD
发明人： KAMIMURA JUNJI , NISHIZAWA AKIHITO , KANAZAWA TORU
IPC分类号： H04N5/232 , H04N5/335 , H04N5/341 , H04N5/351 , H04N5/357 , H04N5/372 , H04N5/376 , H04N5/378
摘要： PROBLEM TO BE SOLVED: To solve the problems that, if the driving frequency is high, the multiplier is to generate a processed clock, but the clock generated by the multiplier has a frequency fluctuation of about several nanoseconds and hence, if the processing of generating the television signals uses this clock, signals meeting the television signal specifications cannot be generated. SOLUTION: A high frequency clock generated by a multiplying means is fed to a first signal processing means for generating luminance and color difference signals using signals from image pickup devices, and a signal means for reducing the pixel number of signals generated by the first processing means. A high frequency accuracy clock obtained by a crystal oscillator is fed to a second signal processing means for generating the television signals. Signals processed with the high accuracy clock are sent to the second signal processing means through FIFO means or simple jitter absorbing means.

8. 发明专利

JP2001116873A FUEL ASSEMBLY 失效
公开(公告)号：JP2001116873A
公开(公告)日：2001-04-27
申请号：JP29762699
申请日：1999-10-20
申请人： HITACHI LTD
发明人： TSUTSUMI NOBURO , NAKAJIMA JUNJIRO , BESSHO TAISUKE , MIZUNO TADASHI , SHIINA KOJI , KANAZAWA TORU , KOYAMA JUNICHI
IPC分类号： G21C3/30
摘要： PROBLEM TO BE SOLVED: To provide a fuel assembly capable of trapping linearly-shaped foreign matter that may flow along flow of coolant, and of fully reducing an increase in pressure losses at a lower tie plate. SOLUTION: The lower tie plate has a foreign matter filter for trapping foreign matter carried by the coolant, the foreign matter filter comprising wire gauze or wire stacked in the direction of flow of the coolant.

9. 发明专利

JPH1048374A FUEL ASSEMBLY 失效
公开(公告)号：JPH1048374A
公开(公告)日：1998-02-20
申请号：JP20684196
申请日：1996-08-06
申请人： HITACHI LTD
发明人： CHAGI MASAO , NISHIDA KOJI , KARASAWA HIDETOSHI , KANAZAWA TORU , ORII AKIHITO , NAGAYOSHI TAKUSHI , KASHIWAI SHINICHI , MASUHARA YASUHIRO
IPC分类号： G21C3/328 , G21C3/326
摘要： PROBLEM TO BE SOLVED: To provide a fuel assembly capable of improving fuel economy by increasing duel inventory even with using short fuel rods. SOLUTION: A fuel assembly 1 is provided with fuel rods 2 arranged in 9×9 matrix and 8 short fuel rids 9,0,The inner width of the channel box 7 is approximately 132.5mm and the length of the fuel rods is approximately 4.1m. Provided that the duel inventory in the short fuel rods 9 is X (kg), and the duel inventory in the other fuel rods is Y (kg), and X and Y fulfills the relations, X+Y>=173, Y =0.

10. 发明专利

JPH0965180A CAMCORDER 失效
公开(公告)号：JPH0965180A
公开(公告)日：1997-03-07
申请号：JP21471295
申请日：1995-08-23
申请人： HITACHI LTD
发明人： KANAZAWA TORU
IPC分类号： H04N5/225
摘要： PROBLEM TO BE SOLVED: To perform automatic control so as to be the picture quality of an easy-to-see view finder screen matched with the brightness of photographing environments. SOLUTION: Incident light from a lens 2 is photoelectrically converted in an imaging device 4, processed in a signal processing circuit 5 and inputted to a microprocessor 7. Corresponding to it, in the microprocessor 7, an iris 3 and a signal storage time control circuit 8 are controlled and simultaneously, an exposure level is calculated. A lens position detection circuit 10 detects a focal length, that is the distance to an object 1, and the focal length of the lens 2. Then, by the arithmetic results of the exposure level, the distance to the object 1 and the focal length the gain of variable amplifier circuits 11 and 12 is controlled. As a result, the levels of luminance signals and color signals inputted to a view finder 16 are controlled.

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