摘要:
A calibration apparatus is provided for calibrating a medical tool having a tool tracking marker. The medical tool and the calibration apparatus are for use with a medical navigation system. The calibration apparatus comprises a frame, a frame tracking marker attached to the frame, and a reference point formed on the frame. The reference point provides a known spatial reference point relative to the frame tracking marker.
摘要:
An access port tracking apparatus is provided having a frame including two arms positioned at a relative angle, a coupling member attached to the frame, the coupling member for coupling the tracking apparatus to an access port, and a coupling attached to the frame for connecting a tracking marker to the frame.
摘要:
A brain phantom is disclosed which includes an anatomically correct structure with a life-like sulci outer brain structure. The phantom is made of materials that mimic one or both of biomechanical and imaging properties of the human brain. The phantom may be a single phantom or it may be a kit including a biomechanical phantom and a separate imaging phantom. The imaging phantom includes structures which mimic white brain tracks or bundles which can be observed using DTI, and can include a post production DTI image to allow practitioners to practice imaging techniques on in addition to practicing surgical techniques.
摘要:
In one embodiment, a metric collection system may collect application metrics across multiple data centers in specific time intervals. A local collection point 108 may establish an absolute reference time for a local data center 102. The local collection point 108 may determine a source reporting interval for an application 106 based on the absolute reference time. The local collection point 108 may receive a source metric report 300 for the application 106 based on the source reporting interval.
摘要:
Stateless application notifications are described that enable third parties to provide messages to client applications. A communication channel can be established between a notification service and an application. Upon request, the notification service can generate obfuscated routing data for the channel, which can be in the form of a channel handle or token. The routing data can be encrypted and digitally signed to obscure the content and format of the routing data from third parties. An application service possessing the obfuscated routing data can package a notification with the data and send the package to the notification service for delivery. The application service does so without knowing the channel particulars encoded by the obfuscated routing data. The notification service that produces the obfuscated routing data can decrypt and interpret the data, and deliver the notification on the channel to an appropriate endpoint application on behalf of the application service.
摘要:
A system and method are provided for reducing signal skew. The method includes receiving a netlist having components and connections among the components. Each connection has at least one signal wire. A plurality of net groups is identified, each net group including at least some of the connections and for which equivalent routing is desired. For each net group, the method includes systematically routing connection paths between the components for the connections, each connection path extending between an output of one of the components and an input to at least one other of the components and including at least one path fragment. Routing includes, for at least one of the connections of the net group, routing at least one grounded shielding wire in a routing channel adjacent and parallel to at least one of the path fragments of the connection path.
摘要:
Apparatus and methods are provided for improving data exchanges between electronic devices, such as memory controllers and RLDRAMs. An I/O cell includes a signal pad for transferring a first signal to an electronic device coupled thereto and for receiving a second signal from the electronic device. In one aspect, a duty cycle controller is coupled to the signal pad for balancing a duty cycle of the first signal with respect to a clock signal. In another aspect, dynamic switchable termination is coupled to the signal pad for providing termination impedance when the I/O cell is receiving the second signal.
摘要翻译:提供了用于改善诸如存储器控制器和RLDRAM之类的电子设备之间的数据交换的装置和方法。 I / O单元包括用于将第一信号传送到与其耦合的电子设备并用于从电子设备接收第二信号的信号焊盘。 在一个方面,占空比控制器耦合到信号焊盘,用于平衡相对于时钟信号的第一信号的占空比。 在另一方面,当I / O单元正在接收第二信号时,动态可切换端接耦合到信号焊盘以提供终端阻抗。
摘要:
A motherboard of a computer system has a video display port, a reprogrammable non-volatile memory, a controller for the non-volatile memory, and a graphics controller circuit for outputting video signals to the video display port. A wired-OR circuit connects the graphics controller circuit to the controller to the port. Thus, the video display port can be used to output video signals from the computer system to a peripheral video display device, and the video display port can be used as an input port to reprogram the non-volatile memory. The present invention also relates to a non-volatile memory device which has an array of non-volatile memory cells and two ports for communication therewith. A first port receives a first communication protocol and interfaces with the array in the first communication protocol. A second port receives a second communication protocol and converts the second communication protocol into the first communication protocol.
摘要:
Apparatus and methods are provided for improving data exchanges between electronic devices, such as memory controllers and RLDRAMs. An I/O cell includes a signal pad for transferring a first signal to an electronic device coupled thereto and for receiving a second signal from the electronic device. In one aspect, a duty cycle controller is coupled to the signal pad for balancing a duty cycle of the first signal with respect to a clock signal. In another aspect, dynamic switchable termination is coupled to the signal pad for providing termination impedance when the I/O cell is receiving the second signal.
摘要翻译:提供了用于改善诸如存储器控制器和RLDRAM之类的电子设备之间的数据交换的装置和方法。 I / O单元包括用于将第一信号传送到与其耦合的电子设备并用于从电子设备接收第二信号的信号焊盘。 在一个方面,占空比控制器耦合到信号焊盘,用于平衡第一信号相对于时钟信号的占空比。 在另一方面,当I / O单元正在接收第二信号时,动态可切换终端耦合到信号焊盘以提供终端阻抗。
摘要:
Disclosed herein is navigation and simulation systems and methods for minimally invasive therapy in which the navigation system imports a planning method using patient specific pre-operative images. The navigation system uses intraoperative imaging during the medical procedure to update the preoperative images and provides images of tracked surgical tools along the surgical path prepared from the preoperative images.