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公开(公告)号：EP0934560A2
公开(公告)日：1999-08-11
申请号：EP98926188.0
申请日：1998-06-02
CPC分类号： G06F9/468
摘要： A method for securely accessing a peripheral device at an absolute address is disclosed. A computer program (200) is executed to request from an operating system a memory access object including a procedure (205) executable to address the peripheral device at the absolute address. An operating system procedure (215) is executed to provide the memory access object to the computer program if a value associated with the computer program indicates that the computer program (235) is trusted to perform absolute addressing. If the operating system procedure (225) provides the memory access object to the computer program, the computer program is executed invoke the memory access object procedure (240) to address the peripheral device at the absolute address.
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公开(公告)号：EP0883930A1
公开(公告)日：1998-12-16
申请号：EP97949489.0
申请日：1997-11-19
IPC分类号： H03K17
CPC分类号： H03K17/6264 , H03K17/04113
摘要： A current mode analog signal multiplexor includes multiple input multiplexed differential amplifiers (12, 14), a reference amplifier ( 12.0, 14.0) and an output differential current amplifier (18, 20). An input multiplex control signal selects and enables one of the input multiplexed differential amplifiers for buffering and steering the input signal current to one side of the output differential current amplifier. The reference amplifier drives the other side of the output differential current amplifier. The output node of the output differential current amplifier remains at a substantially constant voltage potential while providing an output current which varies in relation to the selected input signal.
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公开(公告)号：EP0937353A1
公开(公告)日：1999-08-25
申请号：EP98932859.0
申请日：1998-06-24
IPC分类号： H04L12
CPC分类号： H04L12/18 , H04L12/4645 , H04L45/00 , H04L45/60 , H04L49/602
摘要： A multi-layer distributed network element (201) for relaying packets according to known routing protocols. A distributed architecture of multiple subsystems (410) delivers routing at wire-speed performance across subnetworks. Each subsystem (410) includes a forwarding memory (413) and an associated memory (414) and is configured to identify unicast and multicast packets for routing purposes, modify the packets in hardware, including replace VLAN information, and forward the packets to the next hop. The routing decisions are made in the inbound subsystem, and packets are forwarded, if necessary given the network topology, through a separate outbound subsystem.
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4.发明公开METHOD AND APPARATUS FOR OPERATING A TRANSACTIONAL SERVER IN A PROPRIETARY DATABASE ENVIRONMENT 失效方法和一种用于操作事务服务器在一个私有数据库环境
公开(公告)号：EP0847649A1
公开(公告)日：1998-06-17
申请号：EP97933235.0
申请日：1997-07-01
CPC分类号： H04N7/17336 , G06Q20/0855 , G06Q20/401 , H04N7/1675 , H04N21/2393 , H04N21/254 , H04N21/42684 , H04N21/472 , H04N21/6334 , H04N21/6581
摘要： A transactional server system (260) for transferring subscriber information requests to information service providers, and methods of operating the same result in discouraging reconstruction of the subscriber information. The transactional server system comprises a subscriber platform (145) which transfers an encrypted identification and a message request block. A transaction server is coupled to the subscriber platform to initiate a subscriber information request in response to the message request block and the encrypted identification, and transfer the message request block to the information service providers in response to subscriber information. A database server (276) coupled to the transaction server and having a plurality of subscriber information receives the subscriber information request and decrypts the encrypted identification to provide the subscriber information to the transaction server.
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公开(公告)号：EP0900428A1
公开(公告)日：1999-03-10
申请号：EP97950706.0
申请日：1997-11-26
摘要： A multiple mode digital X-ray imaging system providing for preprocessing 'binning' of analog pixel signals from a detector array by selectively summing, within the detector array, adjacent pixel charges on a row-by-row basis and selectively summing, within detector array readout circuits, the previously summed pixel charges (by rows) on a column-by-column basis. An array, or mapping, of 'defective pixel' flags is used to identify defective pixels within the detector array, with such flags being added to, or inserted into, the incoming data stream for dynamic processing along with the incoming pixel data. A buffer and filter is used to perform still image capture during the radiographic mode of operation and to recursively filter incoming data frames during the fluoroscopic mode of operation by summing a scaled amount of pixel data from prior data frames with a scaled amount of incoming pixel data from the present data frame.
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6.发明公开X-RAY TARGET HAVING HIGH Z PARTICLES IMBEDDED IN A MATRIX 失效TARGET用于生成X射线以矩阵颗粒EMBEDDED的材料从HIGH Z-VALUE
公开(公告)号：EP0862786A1
公开(公告)日：1998-09-09
申请号：EP97940947.0
申请日：1997-09-09
IPC分类号： H01J35
CPC分类号： H01J35/108
摘要： A rotating anode X-ray target has a matrix structure such as a carbon-carbon matrix and a high Z material imbedded inside this matrix structure. The high Z material may be a refractory metal with atomic number at least 72, its alloy or carbide and may be imbedded in the matrix either as discrete particles or as a non-discrete layer. Such a target can be made by any of a number of known methods such as chemical vapor deposition and chemical vapor infiltration. Without a TZM layer or a braze required for holding together an X-ray-producing surface layer and a carbon heat storage material, the target can be made lighter and can be operated at higher temperatures.
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