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41. 发明专利

JPS63230152A DIGITAL TELEVISON TOMOGRAPHIC IMAGING APPARATUS 失效
公开(公告)号：JPS63230152A
公开(公告)日：1988-09-26
申请号：JP6399687
申请日：1987-03-20
申请人： HITACHI MEDICAL CORP
发明人： KAMIYA MASAMI
IPC分类号： A61B6/02 , H04N5/32 , H04N7/18 , H05G1/60 , H05G1/64

42. 发明专利

JPS6382081A DIGITAL X-RAY TELEVISION PHOTOGRAPHING DEVICE 失效
公开(公告)号：JPS6382081A
公开(公告)日：1988-04-12
申请号：JP22587286
申请日：1986-09-26
申请人： HITACHI MEDICAL CORP
发明人： KAMIYA MASAMI
IPC分类号： A61B6/00 , H04N5/32 , H04N7/18
摘要： PURPOSE:To prevent an image from becoming out of focus and to improve the picture quality by providing a converting and repeating means which converts the transfer speed of data to a half and outputs the data, operating a television camera at a frame rate twice as fast as the arithmetic frame rate of an arithmetic memory part, and sending out data after A/D conversion to the arithmetic memory part through the converting and repeating means. CONSTITUTION:The intervals of the 1st vertical synchronizing signals V1 and V1 are set to 1/30 second and the synchronization of the arithmetic memory part 6 is controlled with the 1st vertical synchronizing signal V1. Then the intervals of the 2nd vertical synchronizing signals V2 and V2 are set to 1/60 second and the synchronism between the television camera 4 and an A/D converter 5 is controlled with the 2nd vertical synchronizing signal V2. Therefore, the television camera 4 and A/D converter 5 operate at the frame rate 60F/S twice as high as the arithmetic frame rate 30F/S of the arithmetic memory part 6. Therefore, image data processed by the arithmetic memory part 6 is displayed on a display part 7 as 30 picture per second. Consequently, the motion of the moving picture of a heart, etc., becomes smooth and excellent diagnostic information is obtained.

43. 发明专利

JPS61115539A Digital x-ray photographing apparatus 失效
标题翻译：数码X射线摄影装置
公开(公告)号：JPS61115539A
公开(公告)日：1986-06-03
申请号：JP23605084
申请日：1984-11-09
申请人： Hitachi Medical Corp
发明人： IMAMURA KAZUJI , KAMIYA MASAMI
IPC分类号： G01T1/164 , A61B6/00 , H04N5/32 , H04N7/18
CPC分类号： A61B6/541 , A61B6/481 , A61B6/504 , H04N5/3205

44. 发明专利

JPS61113383A Digital x-ray television equipment 失效
标题翻译：数字X射线电视设备
公开(公告)号：JPS61113383A
公开(公告)日：1986-05-31
申请号：JP23577584
申请日：1984-11-07
申请人： Hitachi Medical Corp
发明人： KAMIYA MASAMI
IPC分类号： H04N5/32 , H04N7/18
摘要： PURPOSE: To effectively utilize the information obtained by X-ray by providing a means to add video signals of one or more frames from starting to stopping of X-ray irradiation and by logarithm-converting after the addition.
CONSTITUTION: By a control program, a switch 26 is connected to side A, X-ray irradiation is started at the starting point of the frame 3 of a frame synchronizing signal (a), and the video signals are stored in an image memory 24. By the next control, the video signals of a frame 4 are added onto the video signals stored in a memory 24 and stored in the memory 24. By the next control, the X-ray irradiation is stopped at the starting point of a frame 5. On the video signals stored in the memory 24, the video signals of the frame 5 are added and stored. Subsequently a switch 26 is set to the side B, and by the next control, the video signals stored in the memory 24 are read, passed through an arithmetic unit 22, logarithm-converted by a logarithm converter 23, and again stored as mask image in the memory 24.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过提供从X射线照射开始到停止的一帧或多帧的视频信号和加法后的对数转换，有效利用X射线获得的信息。构成：通过控制程序，开关26连接到A侧，在帧同步信号（a）的帧3的起始点开始X射线照射，并且将视频信号存储在图像存储器24中通过下一个控制，将帧4的视频信号添加到存储在存储器24中的视频信号上，并存储在存储器24中。通过下一个控制，在帧的起始处停止X射线照射在存储在存储器24中的视频信号上，添加并存储帧5的视频信号。随后，将开关26设置到侧面B，并且通过下一个控制，存储在存储器24中的视频信号被读取，通过运算单元22，由对数转换器23进行对数转换，并再次存储为掩模图像在存储器24中。

45. 发明专利

JPS60194936A X-ray vessel image fluoroscopic apparatus 失效
标题翻译： X射线血管图像荧光装置
公开(公告)号：JPS60194936A
公开(公告)日：1985-10-03
申请号：JP5086584
申请日：1984-03-19
申请人： Hitachi Medical Corp
发明人： ODA KAZUYUKI , KAMIYA MASAMI
IPC分类号： G01N23/04 , A61B6/00 , H04N7/18

46. 发明专利

JPS5896364A PICTURE PROCESSOR 失效
公开(公告)号：JPS5896364A
公开(公告)日：1983-06-08
申请号：JP19347381
申请日：1981-12-01
申请人： HITACHI MEDICAL CORP
发明人： KAMIYA MASAMI , HORIBA ISAO , HAYASHI TOMIO
IPC分类号： A61B6/00 , G06F17/15 , G06T1/00 , G06T1/20 , G06T7/00
摘要： PURPOSE:To project a picture on real-time basis by referring to a table while using the correlation between stored data and new input data as a variable during picture processing. CONSTITUTION:An arithmetic mode switching register 101 sets an adder and subtracter 102 so that memory data MD is subtracted from a new input video signal VD. Then, the new input video signal VD and the memory data MD from a picture memory are inputted to the adder and subtracter 102 to obtain their difference value. This difference value is inputted to the 1st weight table memory 103 and the 2nd weight table memory 104. Then, weight values of the memories 103 and 104 are changed to vary the ratio of the new input video signal VD and that of the memory data MD, thereby projecting a necessary picture on real- time basis.

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