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公开(公告)号：EP0370654B1
公开(公告)日：1995-04-12
申请号：EP89311458.7
申请日：1989-11-06
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公开(公告)号：EP0370654A3
公开(公告)日：1991-11-27
申请号：EP89311458.7
申请日：1989-11-06
摘要： A video imaging system suitable for display of CT cine images stored in a hybridized memory includes both a dynamic random access memory (14) and video random access memory (16), the latter serving as a frame buffer. A memory address space is allocated between the dynamic and video random access memories. A non-linear, chained direct memory access control (22) enables the system to write a series of raster scan images directly from the video random access memory for display. The chaining provides a means for skipping over unused addresses at the end of a display line, thus maximizing utilization of the video random access memory.
摘要翻译： 适用于显示存储在混合存储器中的CT电影图像的视频成像系统包括动态随机存取存储器（14）和视频随机存取存储器（16）两者，后者用作帧缓冲器。 存储器地址空间被分配在动态和视频随机存取存储器之间。 非线性链式直接存储器访问控制（22）使系统能够直接从视频随机存取存储器写入一系列光栅扫描图像以供显示。 链接提供了跳过显示行末端的未使用地址的手段，从而最大限度地利用视频随机存取存储器。
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公开(公告)号：EP0370791A1
公开(公告)日：1990-05-30
申请号：EP89312125.1
申请日：1989-11-22
CPC分类号： A61B6/10 , A61B6/4488 , G05B2219/24042 , G05B2219/24167 , G05B2219/2652
摘要： A gantry (A) of a CT scanner system has an x-ray tube (10) and radiation detectors (14) which produce patient diagnostic data. An operator using a keyboard (20) or other controls operates the x-ray tube and other components of the gantry. The operator also causes a central processing unit (C) to process the diagnostic data with a selected algorithm to provide diagnostic information for display on a display (24). The same keyboard and displays are also utilized in routine service and repair processes. A system monitor (E) compares operating conditions sensed by sensors (50), such as detector temperatures and compares them with acceptable operating conditions. When the sensed conditions are unacceptable, a timer (60) is started and shuts down gantry operation after a preselected duration. The operator can override the timed shut down, but each such override is recorded in a memory (32). The comparing means also compares software identification codes either for software selected on touch sensitive areas (76) of the display screen or from new software identifications read on a disk drive (22). If the identification of the requested or received software matches an authorized software identification, the software is utilized for diagnostic or service purposes. Other use of the software is blocked and the identification of any software sought to be entered is stored in the memory. To initiate a CT scan, a ready button (40) starts a timer (44) which enables a start button (42) to control the power to the CT scanner for a selected short duration, e.g. 30 seconds.
摘要翻译： CT扫描器系统的台架（A）具有产生患者诊断数据的X射线管（10）和辐射探测器（14）。 使用键盘（20）或其他控制器的操作者操作台架的x射线管和其他部件。 操作员还使得中央处理单元（C）以所选择的算法来处理诊断数据，以提供用于在显示器（24）上显示的诊断信息。 同样的键盘和显示器也用于日常维护和维修过程。 系统监视器（E）比较传感器（50）感测的操作条件，例如检测器温度，并将其与可接受的操作条件进行比较。 当感测到的条件不可接受时，启动定时器（60）并在预选持续时间之后关闭台架操作。 操作员可以覆盖定时关机，但每个这样的覆盖记录在存储器（32）中。 比较装置还对用于在显示屏幕的触敏区域（76）上选择的软件或从磁盘驱动器（22）上读取的新的软件标识来比较软件识别码。 如果所请求或接收的软件的标识符合授权的软件标识，则该软件用于诊断或服务目的。 软件的其他用途被阻止，并且寻求输入的任何软件的识别被存储在存储器中。 为了启动CT扫描，就绪按钮（40）启动定时器（44），其使得启动按钮（42）能够控制CT扫描器在所选短时间段内的功率，例如， 30秒。
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公开(公告)号：EP0370791B1
公开(公告)日：1994-08-31
申请号：EP89312125.1
申请日：1989-11-22
CPC分类号： A61B6/10 , A61B6/4488 , G05B2219/24042 , G05B2219/24167 , G05B2219/2652
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公开(公告)号：EP0370654A2
公开(公告)日：1990-05-30
申请号：EP89311458.7
申请日：1989-11-06
摘要： A video imaging system suitable for display of CT cine images stored in a hybridized memory includes both a dynamic random access memory (14) and video random access memory (16), the latter serving as a frame buffer. A memory address space is allocated between the dynamic and video random access memories. A non-linear, chained direct memory access control (22) enables the system to write a series of raster scan images directly from the video random access memory for display. The chaining provides a means for skipping over unused addresses at the end of a display line, thus maximizing utilization of the video random access memory.
摘要翻译： 适用于显示存储在混合存储器中的CT电影图像的视频成像系统包括动态随机存取存储器（14）和视频随机存取存储器（16），后者用作帧缓冲器。 在动态和视频随机存取存储器之间分配存储器地址空间。 非线性链接的直接存储器访问控制（22）使得系统能够直接从视频随机存取存储器写入一系列光栅扫描图像以进行显示。 链接提供了在显示行末端跳过未使用的地址的手段，从而最大化了视频随机存取存储器的利用率。
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