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1. 发明专利

JPH09284705A VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH09284705A
公开(公告)日：1997-10-31
申请号：JP9691796
申请日：1996-04-18
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： KITADE TAKESHI , YAMAMOTO NAOKI , YOSHIMI HIROAKI
IPC分类号： H04N5/765 , H04N5/781 , H04N5/907 , H04N5/91
摘要： PROBLEM TO BE SOLVED: To attain still image recording during recording of a moving image. SOLUTION: A dynamic image video signal outputted from a CCD video image sensor 3 is converted into a digital dynamic image video signal by an A/D converter 5, the signal is coded by an MPEG CODEC 11 or a JPEG CODEC under the control of a micro controller 9 and recorded by a recording circuit 10. Through the shutter operation of the user, when a shutter trigger is received from an input terminal 15, the micro controller 9 generates still image instruction information and the information is added to an image (frame) coded by the MPEG CODEC 11 or a JPEG CODEC as user data. In the case of reproducing a still image from the recording circuit 10, the user data are retrieved to extract the coded image to which the still image instruction information is added and the image is decoded by the MPEG CODEC 11 or a JPEG CODEC to reproduce the still image.

2. 发明专利

JPH0951481A IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH0951481A
公开(公告)日：1997-02-18
申请号：JP19871695
申请日：1995-08-03
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： TODAKA YOSHIHIRO , YOSHIMI HIROAKI , IURA NORIYUKI , YAMAMOTO NAOKI , KURASHIGE TOMOYUKI , IMAIDE TAKUYA
IPC分类号： H04N5/335 , H04N5/351 , H04N5/353 , H04N5/357 , H04N5/372
摘要： PROBLEM TO BE SOLVED: To make pickup of a dynamic image compatible with pickup of a still image by closing an iris after image pickup of a dynamic image and sweeping out a charge in an image pickup element in the case of picking up a still image. SOLUTION: A light incident in an image pickup element 3 via a lens 1 and an iris 2 is converted into an electric signal and converted into a video signal by a signal processing circuit 4, which provides an output to an output terminal 7. In the case of image pickup of a dynamic image, a microcomputer 9 conduct exposure control by an iris and an electronic shutter according to a characteristic curve of the iris and the electronic shutter speed stored in a memory 91 decided in advance so as not to increase the electronic shutter speed abnormally. Furthermore, after a still image pickup instruction is given, the iris 2 is closed and the electronic shttering by sweep-out of a charge in the image pickup element 3 is executed. Thus, the small sized image pickup device is realized at a low cost, where an iris used for a conventional video camera is used and image pickup of a dynamic image and a still image is made compatible.

3. 发明专利

JPH0832880A EXPOSURE CONTROL METHOD FOR IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH0832880A
公开(公告)日：1996-02-02
申请号：JP16093094
申请日：1994-07-13
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： KAMI HIROAKI , YAMAMOTO NAOKI , IURA NORIYUKI , KURASHIGE TOMOYUKI , TODAKA YOSHIHIRO , IMAIDE TAKUYA
IPC分类号： H04N5/335 , H04N5/341 , H04N5/353
摘要： PURPOSE:To allow a simple exposure system to make image pickup of a moving picture compatible with image pickup of a still picture by sweeping out a charge after the start of aperture closing. CONSTITUTION:In the image pickup device provided with an image pickup element 3 applying photoelectric conversion to an incident optical image, an electronic shutter control means 6 controlling a charge storage time by sweeping out the charge of photoelectric conversion in the image pickup element 3, and an aperture 2 limiting the incident luminous quantity to the image pickup element 3 and making image pickup of a still picture available by closing the aperture 2, the charge is swept out after the start of closing operation of the aperture 2. That is, the aperture 2 is kept open or at a position in the vicinity of opening for the exposure control of image pickup of a moving picture and the electronic shutter is used for exposure control. When a still picture pickup instruction is commanded, since the electronic shutter speed is updated in interlocking with the closing aperture, the still picture is picked up in a short exposure time. Thus, the image pickup device making the image pickup of a moving picture compatible with that of a still picture is realized inexpensively with a small size by using a differentiation control type aperture used for a general-purpose video camera.

4. 发明专利

JPH0965189A DATA INPUT/OUTPUT MEANS OF CAMERA WITH IMAGE AND VOICE COMPRESSION/EXPANSION FUNCTION 失效
公开(公告)号：JPH0965189A
公开(公告)日：1997-03-07
申请号：JP21700195
申请日：1995-08-25
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： YAMAMOTO NAOKI , KURASHIGE TOMOYUKI , KUDO YOSHIMICHI , OTSUKA SUSUMU
IPC分类号： H04N5/225 , H04N5/92
摘要： PROBLEM TO BE SOLVED: To enable the input/output of data with an arbitrary data processor by providing a format conversion means between a camera with image and voice compression/expansion function and a data processor which is different from the format. SOLUTION: The input/output terminal 17 and the input/output terminal 18 of a camera 1 with image and voice compression/expansion function are connected and a format exchange adapter 2 receives first format data. First format data is inputted in a format conversion means 20 via an input/output buffer 19. The format conversion means 20 converts the first format data into the second format which is different from the first format and is provided as an input/output means for a PC 3 and outputs the data after the conversion from the input/output terminal 22 via the input/output buffer 19. Input/output terminals 22 and 23 are connected by a cable or other contact and non-contact connection means in the same way as the input/output terminals 17 and 18, and the PC 3 receives the second format data.

5. 发明专利

JPH0983853A IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH0983853A
公开(公告)日：1997-03-28
申请号：JP23101695
申请日：1995-09-08
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： IURA NORIYUKI , YAMAMOTO NAOKI , NAGAYAMA KEIJI , KURASHIGE TOMOYUKI
IPC分类号： H04N5/225 , H04N5/765
摘要： PROBLEM TO BE SOLVED: To display an image at a normal position by recognizing and recording a relation between a horizontal direction and a gravity direction of an image pickup element at image pickup so as to conduct proper image rotation and scanning line number change processing in the case of display on a TV monitor. SOLUTION: An image pickup element 103 usually outputs an NTSC dynamic image to a liquid crystal view finder via an A/D converter 105 and a video signal processing 106. When a video recording button 112 is depressed, an output signal of the image pickup element 103 for a prescribed exposure time is once recorded in a buffer memory 107 via the A/D converter 105 and then again recorded in the buffer memory 107 via the video signal processing 106. Then the signal is recorded in a main memory 109 via an image compression 108 as, e.g. JPEG compression image data. A gravity sensor 111 consisting of a mercury switch records information for longitudinal and lateral positions with respect to the gravity direction from the image pickup element 103 to the main memory 109 when the video recording button 112 is depressed. In the case of processing of the image compander 108, the longitudinal and lateral position information is referred for the companding processing.

6. 发明专利

JPH0865570A METHOD FOR CONTROLLING EXPOSURE OF IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH0865570A
公开(公告)日：1996-03-08
申请号：JP19319494
申请日：1994-08-17
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： TODAKA YOSHIHIRO , KAMI HIROAKI , YAMAMOTO NAOKI , IURA NORIYUKI , KURASHIGE TOMOYUKI , IMAIDE TAKUYA
IPC分类号： H04N5/238 , H04N5/335 , H04N5/353 , H04N5/369 , H04N5/3728 , H04N5/376
摘要： PURPOSE: To make it possible to pick up both a moving image and a still image by a simple exposure system by controlling exposure by an electronic shutter while holding a stop on a slightly opened position at the time of exposure control for a moving image, and after receiving a still image pick-up instruction, updating the shutter speed while interlocking with the stop. CONSTITUTION: In exposure control for a moving image, a microcomputer 9 drives a stop drive circuit 5 to hold the stop 2 on a slightly opened position and exposure is controlled by an electronic shutter control circuit 6. After receiving a still image pickup instruction, the shutter speed of the electronic shutter is updated in accordance with an output from a stop detection circuit 51 while closing the stop 2 to control the circuit 6. Since a still image can be picked up within a short exposure time, a still picture with suppressed deterioration of resolution can be photographed and picture quality of a proper level reduced at its exposure error can be maintained.

7. 发明专利

JPH10271389A VIDEO CAMERA APPARATUS 失效
公开(公告)号：JPH10271389A
公开(公告)日：1998-10-09
申请号：JP9597398
申请日：1998-04-08
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： YAMAMOTO NAOKI , IMAIDE TAKUYA , KOMATSU HIROYUKI
IPC分类号： H04N5/225 , G06T3/40 , H04N5/262 , H04N5/335 , H04N5/345 , H04N5/376 , H04N5/378
摘要： PROBLEM TO BE SOLVED: To obtain a display image with different zooming ratios in the horizontal and vertical directions. SOLUTION: When a zooming ratio β1 /α1 in the vertical direction and the zooming ratio β2 /α2 in the horizontal direction are set for a control circuit 107, these are supplied to an image-processing circuit 108, and a magnification interpolation processing is performed to a video signal from a digital signal processing circuit 104 with the zooming ratio β1 /α1 in the vertical direction and the zooming ratio β2 /α2 in the horizontal direction respectively. In addition, a vertical direction reading starting address 901 is supplied from the control circuit 107 to a sensor drive circuit 106, a reading starting line at a sensor light-receiving surface 903 is selected, and in addition, a horizontal direction reading starting address 902 is supplied to the image-processing circuit 108 and data of start of magnification interpolation in the horizontal direction are selected. Consequently, a video is obtained by performing the magnification interpolation to the video in an area of an optional position of the sensor light- receiving surface 903 with the zooming ratio β1 /α1 in the vertical direction and the zooming ratio β2 /α2 in the horizontal direction respectively.

8. 发明专利

JPH10271381A VIDEO CAMERA APPARATUS 失效
公开(公告)号：JPH10271381A
公开(公告)日：1998-10-09
申请号：JP9597098
申请日：1998-04-08
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC
发明人： YAMAMOTO NAOKI , IMAIDE TAKUYA , KOMATSU HIROYUKI
IPC分类号： H04N5/225 , G06T3/40 , H04N5/262 , H04N5/335 , H04N5/345 , H04N5/351 , H04N5/376 , H04N5/378
摘要： PROBLEM TO BE SOLVED: To vary the position of a reading area at a sensor light-receiving surface at the time of zooming. SOLUTION: When a zooming ratio β/α=2 times is set at present for a control circuit 107, a sensor (image-pickup part) 101 is driven by a sensor drive circuit 106 and areas shown by a first and a second illustrations on (b) according to the zooming ratio of the sensor light-receiving surface 903 of the sensor 101 are read by the sensor 101. A vertical direction reading starting address 901 is supplied to the sensor drive circuit 106 from a control circuit 107, and a starting position of the reading area in vertical direction at the sensor light- receiving surface 903 is decided. A magnification interpolation is performed, according to data 111 with the zooming rate of β/α from the control circuit 107 in an image-processing circuit 108 by an output signal of the sensor 101. The magnification interpolation is performed from a position according to a horizontal direction reading starting address 902 from the control circuit 107. Each title screen is varied as the first and the second illustrations on (a) and (b) by varying the horizontal direction reading starting address 902 as x1 , x2 and varying the vertical direction reading starting address 901 as y1 , y2 .

9. 发明专利

DE19615571A1 Digital picture-taking or camera apparatus 未知
公开(公告)号：DE19615571A1
公开(公告)日：1996-10-24
申请号：DE19615571
申请日：1996-04-19
申请人： HITACHI LTD
发明人： YAMAMOTO NAOKI , AIZAWA IWAO , KUDO YOSHIMICHI , OHSAKA ICHIRO , IURA NORIYUKI
IPC分类号： H04N1/21 , H04N5/335 , H04N5/372 , H04N5/378 , H04N5/77 , H04N5/926 , H04N7/24
摘要： The apparatus has picture-forming units (1,2,3) for producing electrical video signals. The digital signal processing units (4,5) produce digital signals and digital picture data. This data is then stored in memory (16). Control units (10) store the data in an access operation and transfer it. Further (software) processing is carried out by the microcontroller (14). Other units (15) for carrying out switching operations during the above operations.

10. 发明专利

CA1204222A SEMICONDUCTOR DEVICE 未知
公开(公告)号：CA1204222A
公开(公告)日：1986-05-06
申请号：CA438426
申请日：1983-10-05
申请人： HITACHI LTD
发明人： KOBAYASHI NOBUYOSHI , IWATA SEIICHI , YAMAMOTO NAOKI
IPC分类号： H01L21/3205 , H01L21/28 , H01L23/29 , H01L23/31 , H01L23/52 , H01L23/532 , H01L29/43 , H01L29/49 , H01L23/48
摘要： : A semiconductor device has an electrode or interconnection made of an insulating film, a tungsten film and a phosphosilicate glass film which are stacked and formed on a semiconductor substrate. In this manner the channeling attributed to the punch-through of ions during ion implantation, and fluctuations in threshold voltage can be effectively prevented and the device given stable characteristics.

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