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31. 发明专利

JPH04206557A COOLING WATER FEEDING DEVICE FOR LSI 失效
公开(公告)号：JPH04206557A
公开(公告)日：1992-07-28
申请号：JP32932390
申请日：1990-11-30
申请人： HITACHI LTD
发明人： TAKAHASHI KENJI , OGURO TAKAHIRO , YASUDA HIROSHI , YAMASHITA TETSUHARU , MURAKAMI KYOSHIRO , YOSHIKAWA TOMIO , TAKEMOTO TAKEO , ZUSHI SHIZUO
IPC分类号： H01L23/473
摘要： PURPOSE:To increase the rate of rise in the temperature of a low-temperature cooling water and to contrive a shortening in a waiting time to take up to start by a method wherein a circulating pump and a back-up pump, which are installed for computer cooling use, are simultaneously operated at the time of starting. CONSTITUTION:The temperature of cooling water is measured by a temperature sensor 10 installed in a cooling water flow path 2 for an LSI at the time of starting and when the temperature of the cooling water is a certain temperature or lower, a pump 9 for back-up use is also actuated simultaneously by a control circuit 12 in addition to a circulating pump 1. At this time, with a valve 13 opened, a valve 11 is shut a little for preventing the flow velocity of the cooling water from being excessive. When a detection temperature of the sensor 10 reaches a set temperature, the pump 9 is stopped by the circuit 12, the valve 13 is shut to its full width and at the same tine, the pump 1 and the valve 11 are opened to their full widths and a device goes into a stationary operation. Heat, which is generated by operating a plurality of the pumps is added more to the low-temperature cooling water, the rate of rise in the temperature of the cooling water is increased and the temperature of the water can approach the set temperature quickly.

32. 发明专利

JPH043594A SIGNAL INTERPOLATION DEVICE 失效
公开(公告)号：JPH043594A
公开(公告)日：1992-01-08
申请号：JP10300090
申请日：1990-04-20
申请人： HITACHI LTD
发明人： OZAWA NAOKI , TAKAHASHI KENJI , AKIYAMA TOSHIYUKI , MIMURA ITARU , MATSUMOTO TAKAHIRO
IPC分类号： H04N5/335 , H04N5/367 , H04N5/378 , H04N7/015 , H04N19/00 , H04N19/132 , H04N19/136 , H04N19/14 , H04N19/182 , H04N19/423 , H04N19/59 , H04N19/80 , H04N19/85 , H04N7/13 , H04N7/00
摘要： PURPOSE:To attain interpolation not causing a false pseudo at a border of a subject by correcting signals of adjacent points according to a coefficient signal obtained from both a 1st and a 2nd signals. CONSTITUTION:An input signal 1 is fed to a 1H delay circuit 2 having a delay time equal to one horizontal scanning period, from which a 1H delay signal 3 is generated and fed to low pass filters 4, 5, converted into low frequency signals 6, 7, and fed to a coefficient circuit 8, from which a coefficient signal 9 is obtained. Then the signal is fed to a multiplier 10, in which the signal 3 and the signal 9 are multiplied and an interpolation signal 11 is obtained, which is added to the input signal 1 to obtain an output signal 13. Side band components of a sampling frequency of signals of 1st and 2nd signal groups are opposite in phase to each other. Thus, the side band component is eliminated in the interpolation signal obtained by the correction and the signal 13 after interpolation obtained from the addition of the signal of the 1st signal group before interpolation. Thus, a pseudo signal generated at the border of a subject in the reproduced picture is suppressed.

33. 发明专利

JPH03211391A FALLING FILM EVAPORATOR 失效
公开(公告)号：JPH03211391A
公开(公告)日：1991-09-17
申请号：JP612090
申请日：1990-01-17
申请人： HITACHI LTD
发明人： TAKAHASHI KENJI , OGURO TAKAHIRO , YASUDA HIROSHI , YAMASHITA TETSUHARU , MURAKAMI KYOSHIRO , ZUSHI SHIZUO
IPC分类号： F28D3/00 , F25B39/02
摘要： PURPOSE:To increase the quantity of a liquid refrigerant flowing into a heat exchanger tube and contrive an increased cooling efficiency of a cooler, by a construction wherein a pressure loss of the liquid refrigerant across a gap between a refrigerant distributing plate and the heat exchanger tube is equal to a pressure loss of a refrigerant gas during passage through a refrigerant vapor extraction pipe from a refrigerant distributing chamber to an evaporation chamber. CONSTITUTION:A liquid refrigerant introduced through a refrigerant inlet part 2 of a shell 1 flows through a refrigerant distributing chamber 30, and flows down on the outside of heat exchanger tubes 4, whereas cold water flows into a water chamber 14 via a cold water inlet part 6. Between a liquid refrigerant distributing plate 15 and each of the tubes 4 provided is a gap 38, through which the liquid refrigerant 37 flows down. A refrigerant vapor generated through evaporation of the liquid refrigerant and a vapor in the distributing chamber 30 are passed through a vapor extraction pipe 32 into an evaporation chamber 31, where the vapors are mixed, and the resulting vapor mixture flows through a refrigerant gas discharge pipe 35 to a compressor. Where a pressure loss during passage through the vapor extraction pipe 31 is designed to be equal to a pressure loss across the gaps 38 provided at the peripheries of the heat exchanger tubes 4 for distribution of the refrigerant, only the liquid refrigerant 37 flows into the heat exchanger tubes 4 via the gap parts 38, and only the refrigerant gas flows through the extraction pipe 32 into the evaporation chamber 31. Thus, cooling efficiency of a cooler can be enhanced.

34. 发明专利

JPH03135177A SIGNAL READOUT DEVICE 失效
公开(公告)号：JPH03135177A
公开(公告)日：1991-06-10
申请号：JP27159489
申请日：1989-10-20
申请人： HITACHI LTD
发明人： TAKAHASHI KENJI , AKIYAMA TOSHIYUKI , MIMURA ITARU , OZAWA NAOKI , MATSUMOTO TAKAHIRO
IPC分类号： H04N5/335 , H04N5/341 , H04N5/357 , H04N5/363 , H04N5/369 , H04N5/372 , H04N5/378
摘要： PURPOSE:To obtain a video signal with a broad band and high picture quality by extracting a clock frequency component from a signal output and feeding back a DC level proportional to the amplitude of leakage clock to a correlation duplicate sampling circuit. CONSTITUTION:A clock frequency is extracted at a BPF 1 from an output signal at an output point P1 of a correlation duplicate sampling circuit, the leakage component is subject to synchronization detection by a synchronization detection circuit 2 and a DC voltage proportional to the amplitude is converted. The voltage is given to a gate circuit 3, a signal is extracted by using a gate pulse GP, the signal is compared with a reference voltage Vf at a differential amplifier 4 and a comparison output is given to a loop filter 5, and the output is used as a reference voltage of a clamp circuit 42 and a negative feedback circuit is constituted as a whole. In the negative feedback circuit, the voltage Vf is set to an earth level and the converged value is controlled so that an output level of the circuit 2 is zero, that is, the clock frequency at a point P1 is controlled to be zero. Thus, the video signal with an excellent phase characteristic is obtained and a sufficiently wide band output signal is obtained.

35. 发明专利

JPH0325957A OPTIMUM DESIGN SUPPORT SYSTEM FOR LSI MULTILAYER FILM STRUCTURE 失效
公开(公告)号：JPH0325957A
公开(公告)日：1991-02-04
申请号：JP15952389
申请日：1989-06-23
申请人： HITACHI LTD
发明人： MOKUYA KINJI , TAKAHASHI KENJI , EBARA YUTAKA , NODA REIKO
IPC分类号： G01R31/26 , G01N25/72 , G06F17/50 , H01L21/3205 , H01L21/82 , H01L23/52
摘要： PURPOSE:To support optimization of an LSI multilayer film structure within the limit of crack generation by constructing a calculation model of a destruction parameter giving a criterion of facility for developing cracks and carrying out simulation estimation of generation of an interlayer film crack due to thermal stress. CONSTITUTION:A stress expansion coefficient for evaluating crack resistivity serves as a measure to know whether a potential crack length extends to pass through a thick part of a film to give rise to destruction or not. When a cracked part is divided into a finite number of elements and a resist residual part is cavity approximated as an object having very large rigidity, scattered cracked parts are displaced in the x-direction so that gaps are widened by the driving force due to thermal stress. The stress expansion coefficient KI in a tensile mode is obtained as shown in the formula from this displacement ux at the distance r from the front end of the crack, and the displacement ux in the x-direction in one-to-one correspondence with the stress expansion coefficient KI is adopted as the destruction parameter. The calculated result of this stress, displacement state, and the result of the destruction evaluation parameter calculation 4 of the stress expansion coefficient, etc., are reserved in a calculated result receiving file, and the content thereof is displayed suitably at the graphic terminal for displaying the calculated result.

36. 发明专利

JPH02310613A METHOD AND DEVICE FOR COOLING ELECTRONIC COMPUTER 失效
公开(公告)号：JPH02310613A
公开(公告)日：1990-12-26
申请号：JP13137389
申请日：1989-05-26
申请人： HITACHI LTD
发明人： TAKAHASHI KENJI , OGURO TAKAHIRO , YASUDA HIROSHI , YAMASHITA TETSUHARU , ZUSHI SHIZUO , MURAKAMI KYOSHIRO
IPC分类号： F25D31/00 , F25D13/00 , G06F1/20 , H01L23/427 , H05K7/20
摘要： PURPOSE:To reduce a waiting time at the time of starting a computer by using a flow liquid film evaporator for the evaporator of a refrigerating cycle. CONSTITUTION:The evaporator 6 of the refrigerating cycle is set to be the flow liquid film type evaporator. Since, coolant evaporates on the outer surface of a heating tube at the inner part of the dropping liquid film type evaporator, evaporated coolant gas immediately flows into a compressor 7 by piping 5 through the compressor 7 provided in the shell of the evaporator 6. Consequently, coolant gas does not reside in the shell of the evaporator 6, responsiveness is quick, and a system immediately rises at the time of starting a cooler, whereby a cooling quantity in a normal stable state after starting can be quickly obtained. A temperature sensor 30 detects the water temperature of cooling water and an invertor 11 controls the number of revolution of the motor of the compressor 7.

37. 发明专利

JPH02172370A IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH02172370A
公开(公告)日：1990-07-03
申请号：JP32579288
申请日：1988-12-26
申请人： HITACHI LTD
发明人： AKIYAMA TOSHIYUKI , MIMURA ITARU , OZAWA NAOKI , TAKAHASHI KENJI , MATSUMOTO TAKAHIRO
IPC分类号： H04N5/232
摘要： PURPOSE:To suppress the spread of an image due to the movement of an object during the storage period of a signal charge by devising the device such that a relative speed of an image formed on a photodetecting face with respect to the photodetecting face is decreasing while a signal charge is stored or the image is made nearly standstill on the photodetecting face even if the object is moving. CONSTITUTION:The signal charge is stored while moving an optical system such as a lens 1 and an image pickup element 2 or either of them in matching with the movement of an object so that a relative speed of a noted image being at least part of the image formed on the photodetecting face of an image pickup element 2 with respect to the photodetecting face of the image pickup element 2 is small or nearly at a standstill for a period being nearly an integral number of multiple of a signal charge storage period or a signal charge readout period. Thus, the spread of the image due to a moving object for the signal charge storage period is suppressed.

38. 发明专利

JPH0228434B2 失效
公开(公告)号：JPH0228434B2
公开(公告)日：1990-06-25
申请号：JP6105982
申请日：1982-04-14
申请人： HITACHI LTD
发明人： TAKAHASHI KENJI , KAWASAKI KAZUMI
IPC分类号： B23K31/00 , B23K33/00

39. 发明专利

JPH0223790A METHOD AND CIRCUIT FOR REGISTRATION CORRECTION 失效
公开(公告)号：JPH0223790A
公开(公告)日：1990-01-25
申请号：JP17270988
申请日：1988-07-13
申请人： HITACHI LTD
发明人： MIMURA ITARU , AKIYAMA TOSHIYUKI , ETO YOSHIZUMI , OZAWA NAOKI , TAKAHASHI KENJI
IPC分类号： H04N9/093
摘要： PURPOSE:To obtain a video signal free from a color slip and in addition, of high resolution even in a color camera using a solidstate image pickup element by controlling the factor of a two-dimensional filter according to a registration error. CONSTITUTION:A lens parameter detection circuit 1 detects parameters such as the zoom ratio Z of a lens, a stop value F, subject distance L, etc., in a photographing state, and outputs them to an aberration operation circuit 2. The operation circuit 2 operates the aberration quantity of the lens from the supplied lens parameters, and outputs it to a factor operation circuit 3. The factor operation circuit 3 determines the factor of the lens from the supplied aberration quantity of the lens, and outputs it to a registration correction circuit (two-dimensional filter) 4. The correction circuit 4 multiplies an input signal by the factor, and corrects registration.

40. 发明专利

JPH024091A INTEGRATION TYPE SIGNAL OUTPUTTING DEVICE 失效
公开(公告)号：JPH024091A
公开(公告)日：1990-01-09
申请号：JP15233588
申请日：1988-06-22
申请人： HITACHI LTD , HITACHI DEVICE ENG
发明人： KUNIMASA YOSHIO , TAKAHASHI KENJI , AKIYAMA TOSHIYUKI , OZAWA NAOKI , MIMURA ITARU , TOMITA TSUTOMU
IPC分类号： H01L27/14 , H01L27/146 , H04N5/217 , H04N5/335 , H04N5/357 , H04N5/369 , H04N5/374 , H04N5/378
摘要： PURPOSE:To obtain the added signal of a signals integrated for different integrating periods, and to achieve noise reduction by adding the signal which was stored and discharged by a storage discharge circuit and a source signal, and integrating this added signal. CONSTITUTION:The voltage signal (a) of s picture element read out of a photodiode 1 is inputted to the storage discharge circuit 24 and an addition circuit 21. The storage period TC of the storage discharge circuit 24 includes a period in which a picture signal (a) can be obtained. An output signal (c) obtained by opening and closing a switch 17a by a control circuit 20a and the source signal (picture element signal) (a) are added by the addition circuit 21, and are inputted to an integration circuit 19. Then, by opening and closing the switch 17b by the control circuit 20b at timing (e), the signal (f) is obtained. At that time, a noise in the output of the integration circuit 19 becomes the sum of the integrated result of the source signal (a) by the integration circuit 19 and the integrated result of the output signal (c) of the storage discharge circuit 24 by the integration circuit 19. Accordingly, the frequency component of the noise is attenuated, and the noise reduction can be achieved.

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