摘要:
A method and apparatus for registering a remote network device with a network control device. In one embodiment, the method comprises determining a network identification code stored within the remote network device and determining if the network identification code comprises a default network identification code. If the network identification code comprises a default network identification code, transmitting a message indicative of a request to join an existing network and determining whether a first response to the transmitted message was received. If a first response to the transmitted message was received, determining a second network identification code from the first response, and assigning the second network identification code to the remote network device.
摘要:
A method and apparatus for sending messages from a first network device to a second network device is described. In one embodiment, the method comprises constructing a data packet, the data packet comprising a House Code field for identifying a house code relating to the first and second network devices, the house code for identifying an address common to the first network device and the second network device. The data packet further comprises a Long/Short field for indicating whether the data packet is a long data packet or a short data packet and a Command field comprising a command, the command for instructing the second network device to perform an action. The data packet further comprises a Data field comprising information for use by the second network device to execute the action associated with the command, and an Error Check field comprising error checking information. The data packet is then modulated and transmitting over one or more communication channels.
摘要:
A transducer is used to send an ultrasound pulse toward a stone and to receive ultrasound reflections from the stone. The recorded time between a pulse that is reflected from the proximal surface and a pulse that is reflected either from the distal surface of the stone or from a surface supporting the stone is used to calculate the stone size. The size of the stone is a function of the time between the two pulses and the speed of sound through the stone (or through the surrounding fluid if the second pulse was reflected by the surface supporting the stone). This technique is equally applicable to measure the size of other in vivo objects, including soft tissue masses, cysts, uterine fibroids, tumors, and polyps.
摘要:
A method and apparatus for self-assigning network identification codes to a network device. In one embodiment, a method comprises determining if the network device comprises a default network identification code. If the network identification code comprises a default network identification code, transmitting a first network identification code and determining whether a first response was received to the first network identification code transmission. If no response was received, assigning the first network identification code to the network device. If the first response was received, transmitting a second network identification code and determining whether a second response in response to the second network identification code transmission was received. If so, assigning the second network identification code to the network device.
摘要:
System and method for distinguishing colors of illuminated objects using machine vision. A color-balanced image that includes at least one lit area is received, as well as an indication of a region of interest that includes one of the one or more lit areas. A mask image is generated based on the region of interest. A color-balanced image of the region of interest is generated by masking the color-balanced image with the mask image, and a plurality of image attributes for the region of interest is determined by analyzing the color-balanced image of the region of interest. A color is determined based on the plurality of image attributes using a trained classifier, and the determined color stored, e.g., in a memory medium.
摘要:
A method of locating a wellbore feature, comprising delivering a mechanical position determination tool into the wellbore, selectively causing an undulating curvature of the mechanical position determination tool in response to a change in a fluid pressure, moving the mechanical position determination tool along a longitudinal length of the wellbore, and sensing a change in resistance to continued movement of the mechanical position determination tool. A mechanical position location tool for a wellbore, comprising pressure actuated elements configured to cooperate to selectively provide an unactuated state in which the mechanical position location tool lies substantially along a longitudinal axis and the pressure actuated elements further configured to cooperate to selectively lie increasingly deviated from the longitudinal axis in response to a change in pressure applied to the mechanical position location tool.
摘要:
A network architecture with load balancing, fault tolerance and distributed querying comprises a plurality of front-end servers, a plurality of back-end servers, and a database. The front-end servers are coupled to a network to receive data requests from client devices. The front-end servers are each coupled to the plurality of back-end servers. The front-end servers handle data requests at a macro level and divide the request into sub-requests that are sent to the plurality of back-end servers. The back-end servers are coupled to the database to retrieve data. Each data request is distributed across the plurality of back-end servers according to workload. The front-end servers are fault tolerant in that they can respond to a request for data without all of the back-end servers being responsive or providing data. The present invention also includes a plurality of methods including: a method for distributed querying, a method for loading data sets from a database, and a method for responding to a query that provides fault tolerance.
摘要:
A radiation detector (10) has a base (30), a frame (48), a window (46), and solder layers (50, 52) formed from a solder pre-form (58, 60) to define a vacuum chamber (56). Feedthroughs (18, 40, 44) penetrate the base (30) for electrical connection to internal components. A method for sealing the detector (10) aligns a lower detector assembly (62), the frame (48) the window (46), and the solder pre-forms (58, 60) in a non-sealed relation within a processing chamber (80, 94). High temperature and low pressure is imposed, and the getter (42) is activated by resistive heating imposed by current leads (88). The window (46), frame (48), and lower detector assembly (62) are then pressed together and sealed by the liquefied solder pre-forms (58, 60). The method eliminates the need for a seal port, combines several steps within the processing chamber (80, 94), and eliminates certain prior art cleaning steps.
摘要:
Overlay reports showing user interaction with web plug-in content are generated. Dimensions of elements within plug-in resources are determined by moving the elements to various locations with an output region and noting changes in overall dimensions of the output region. Once dimensions have been determined, overlay reports are generated including color-coded regions depicting relative levels of interaction.
摘要:
A process is provided for making a composite work article suitable for fabricating rigid sheet metal can components. A steel sheet having first and second surfaces is pre-treated to enhance reception and retention of a multi-layer polymer coating on the pre-treated first surface. The multi-layer polymer coating is melt extruded on the pre-treated first surface and beyond opposite lateral edges of the work article to establish overhang portions, then solidified. The multi-layer polymeric coating has a tie polymeric layer contacting the pre-treated first surface, and a finish-surface polymeric layer. The solidified overhang portions are trimmed, and the extruded multi-layer polymeric coating is subjected to finish-treatment, involving heating the extruded multi-layer polymeric coating at least to a melt temperature thereof, then cooling the multi-layer polymeric coating through glass-transition temperature thereof at a sufficiently rapid rate to establish amorphous non-directional characteristics in the polymeric coating.