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| 20080204024 | METHOD OF REDUCING EDDY CURRENTS CAUSED BY A GRADIENT MAGNETIC FIELD IN A MAGNETIC RESONANCE SYSTEM - A method for reducing eddy currents caused by the gradient magnetic field in a magnetic resonance system employs an anti-eddy current device formed by a number of laminated metallic plates, and includes the steps of calculating the distribution of the main magnetic field of the magnetic resonance system in the anti-eddy current device, calculating the distribution of the main magnetic field and the gradient magnetic field in the anti-eddy current device, subtracting the calculated distribution of the main magnetic field in the anti-eddy current device from the calculated distribution of the main magnetic field and the gradient magnetic field in the anti-eddy current device, to obtain the distribution of the gradient magnetic field in the anti-eddy current device, and adjusting the setting of the metallic plates of the anti-eddy current device based on the distribution of the gradient magnetic field in the anti-eddy current device, so as to reduce the eddy current. The adjustment in the metallic plates of the anti-eddy current device should be such that the gradient magnetic field is parallel to or substantially parallel to the plane of the metallic plates. The metallic plates can be further divided into a number of areas, or the laminating direction of the metallic plates in different areas can be adjusted according to the specific distribution of the gradient magnetic field to obtain the optimum effect of eddy current reduction. | 08-28-2008 |
| 20100217114 | MAGNETIC RESONANCE THERMOMETRY METHOD - A method for reducing errors in the measurement of temperature by magnetic resonance, for use in magnetic resonance imaging-guided HIFU equipment, includes acquiring an MR phase image, as a reference image, before heating an area to be heated with the HIFU equipment; acquiring another MR phase image, as a heated image, during or after the heating by the HIFU equipment; and calculating the temperature change in the heated area according to said heated image and said reference image; and making compensation to said temperature change according to the change in the magnetic field caused by the position change of an ultrasonic transducer in said HIFU equipment. The method can reduce significantly the temperature errors resulting from the position changes of the ultrasonic transducer. | 08-26-2010 |
| 20100249668 | ULTRASONIC TRANSDUCER - An ultrasonic transducer has at least two sets of transducer units, with all the transducer units in each set having the same focus position and the transducer units in the different sets having different focus positions. Since the focus points of the sets of ultrasonic transducer units are distributed in a relatively large spatial range, the range of ultrasonic therapy can be increased even within the narrow and limited space of magnetic resonance imaging equipment. | 09-30-2010 |
| 20110050229 | METHOD AND APPARATUS FOR COMPENSATING INSUFFICIENT HOMOGENEITY OF THE BASIC MAGNETIC FIELD IN A MAGNETIC RESONANCE APPARATUS - In a method and device for compensating the insufficient homogeneity of a magnetic field in a magnetic resonance system, the spatial position and size of a basic magnetic field region and at least one additional magnetic field region in a field to be homogenized and determined. An optimization calculation is implemented on the basic magnetic field region and the at least one additional magnetic field region. A homogenized magnetic field at the main magnetic field region and the at least one additional magnetic field region is output according to the result of the optimization calculation. | 03-03-2011 |
| 20110241668 | METHOD FOR MAGNETIC RESONANCE IMAGING - A method for magnetic resonance imaging, in which a magnetic resonance imaging device employs a multi-echo imaging sequence, includes the steps of: applying, to one of the multiple echoes, a first number of steps of phase encoding, applying a readout gradient, and collecting the data of this echo to reconstruct an anatomical image; and applying, to another one of the multiple echoes, a second number of steps of phase encoding, applying a readout gradient, and collecting the data of this echo to construct a temperature image. The method is capable of obtaining at the same time both a temperature image with high time resolution and an anatomical image with high spatial resolution. | 10-06-2011 |
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| 20090303833 | METHOD OF VOLUME-PANORAMA IMAGING PROCESSING - The present invention discloses a method of volume-panorama imaging processing, which generates a volume-panorama image by subsequently splicing respective image frames from an image sequence obtained in a real-time way or stored in a medium based upon the fact that the immediately adjacent image frames have the largest correlation. The method comprises the steps of: reading the image sequence, and firstly initializing an aligned image and a spliced image; dividing the i-th image frame F | 12-10-2009 |
| 20100189335 | ULTRASOUND IMAGE ENHANCEMENT AND SPECKLE MITIGATION METHOD - A method for enhancing an ultrasound image is provided, wherein the ultrasound image is segmented into a feature region and a non-feature region, while sufficiently utilizing features contained in the ultrasound image, in particular including some inconspicuous features. the enhanced image according to present invention is not susceptive of the image segmentation and avoid dependence of the enhancement effect on the segmentation template, so as not to produce an evident artificial boundary between the feature region and the non-feature region but to highlight some special information in the image and to remove or mitigate invalid information. Thus the enhanced ultrasound image is particularly suitable for the visual system of the human beings. | 07-29-2010 |
| 20100189346 | ULTRASOUND IMAGE ENHANCEMENT AND SPECKLE MITIGATION METHOD - A method for enhancing an ultrasound image is provided, wherein the ultrasound image is segmented into a feature region and a non-feature region, while sufficiently utilizing features contained in the ultrasound image, in particular including some inconspicuous features, the enhanced image according to present invention is not susceptive of the image segmentation and avoid dependence of the enhancement effect on the segmentation template, so as not to produce an evident artificial boundary between the feature region and the non-feature region but to highlight some special information in the image and to remove or mitigate invalid information. Thus the enhanced ultrasound image is particularly suitable for the visual system of the human beings. | 07-29-2010 |
| 20110096965 | ULTRASOUND IMAGE ENHANCEMENT AND SPECKLE MITIGATION METHOD - A method for enhancing an ultrasound image is provided, wherein the ultrasound image is segmented into a feature region and a non-feature region, while sufficiently utilizing features contained in the ultrasound image, in particular including some inconspicuous features. the enhanced image according to present invention is not susceptive of the image segmentation and avoid dependence of the enhancement effect on the segmentation template, so as not to produce an evident artificial boundary between the feature region and the non-feature region but to highlight some special information in the image and to remove or mitigate invalid information. Thus the enhanced ultrasound image is particularly suitable for the visual system of the human beings. | 04-28-2011 |
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| 20090254494 | METHOD, APPARATUS, AND SYSTEM FOR IMPLEMENTING POLICY AND CHARGING CONTROL - A method for implementing a policy and charging control (PCC) is provided. The method includes: acquiring user location information; and determining a PCC rule of a user according to the acquired user location information. The PCC rule is for a policy and charging enforcement function (PCEF) to perform the corresponding PCC. Corresponding PCEF, policy control and charging rules function (PCRF), gateway, and system for implementing a PCC are also provided. Thus, the PCC based on fine-granularity location information is implemented. | 10-08-2009 |
| 20090279557 | METHOD OF ROUTE CONVERGENCE, ROUTING DEVICE, AND MAIN CONTROL BOARD IN ROUTING DEVICE . - A method of route convergence, a routing device, and a main control board in the routing device are provided herein. The method includes receiving route information from multiple neighbor routing devices; selecting a route among the received route information, and applying the selected route to update an FIB of the main control board; and delivering the selected route to an interface board after confirming that the route information from the multiple neighbor routing devices is received and the route selection is completed. | 11-12-2009 |
| 20100008373 | COMMUNICATION SYSTEM, DEVICE, METHOD FOR HANDING OVER A ROUTE AND METHOD FOR NOTIFYING A STATE OF ADVERTISING A LABEL - The present invention relates to a field of communication technology, and more particularly to a communication system, a label switched router, a network device, a method for handing over a route, and a method for notifying a state of advertising a label so as to improve an accuracy occasion for handing over a route. A liberal LSP between an upstream LSR and a downstream LSR is established; it is confirmed that establishing the liberal LSP is accomplished; a handover notification is sent to the upstream LSR; and the upstream LSR hands over the route according to the handover notification. By adopting such technical solution, the accuracy occasion for handing over the route is improved so as to avoid label forwarding interruption, and reduce the influences on the convergence time of handing over the route. | 01-14-2010 |
| 20100287121 | Method, Apparatus, and System for Implementing Policy and Charging Control - A method for implementing a policy and charging control (PCC) is provided. The method includes: acquiring user location information; and determining a PCC rule of a user according to the acquired user location information. The PCC rule is for a policy and charging enforcement function (PCEF) to perform the corresponding PCC. Corresponding PCEF, policy control and charging rules function (PCRF), gateway, and system for implementing a PCC are also provided. Thus, the PCC based on fine-granularity location information is implemented. | 11-11-2010 |
| 20110028165 | LOCATION SERVER, LOCATION CONTROLLER, METHOD AND SYSTEM FOR IMPLEMENTING LOCATION-BASED SERVICE - A location server, a location controller, a method and a system for implementing a location-based service are provided. The method includes: receiving a location data request sent by a client; sending a location request message including QoS requirement information to a location controller; sending location information to the client according to a location response returned by the location controller, where the location response includes location measurement information. The location server does not need to directly transmit QoS requirement values sent by the client, but satisfies the service having no specific requirements for QoS of a location result by determining the sent QoS requirement information flexibly. The network can determine the QoS of the location result according to its own location capability. In this way, the network location capability is fully utilized, and at the same time flexibility of a location service QoS requirement is improved. | 02-03-2011 |
| 20110035490 | METHOD, SYSTEM AND CONNECTIVITY SERVICE NETWORK (CSN) FOR REALIZING LOCATION SERVICE - A method, a system, and a connectivity service network (CSN) for realizing a location service are provided. When a user terminal roams to the visited domain network from the home domain network, the H-CSN interacts with the V-CSN after receiving the location request, and obtains the location result through location control exercised by the V-CSN over the V-ASN, which realizes the location of the user terminal from the home domain network, and expands the application of the location service in the home domain network. | 02-10-2011 |
| 20110201268 | COMMUNICATION SYSTEM, APPARATUS AND METHOD - A communication system, apparatus and method are provided according to embodiments of the present invention. The communication system includes: a base band unit (BBU), at least two antennas and at least two radio-frequency (RF) units, where the at least two RF units are connected with the BBU respectively; and each of the antennas is connected with at least two RF units respectively, so that a signal received from a same sector by an antenna is sent to the BBU via different RF units. With the embodiments of the present invention, the reliability of RF units may be improved without increasing the hardware cost of the base station. | 08-18-2011 |
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| 20110211684 | METHOD, DEVICE AND SYSTEM FOR JUDGING CALL TYPE - A method, device and system for judging a call type are disclosed in embodiments of the present invention. The method includes: receiving a call request from a calling terminal, where the call request carries a calling terminal number and a called terminal number; querying a number information storage server for plan information of the calling terminal number and/or the called terminal number according to the call request; and judging the call type of a call service corresponding to the call request according to the plan information of the calling terminal number and the called terminal number. In the embodiments of the present invention, a number information storage server stores and manages the number plan information uniformly, thus reducing the maintenance costs; and the method, device and system for judging a call type enable judging of the call type of a terminal. | 09-01-2011 |
| 20110255550 | METHOD, APPARATUS AND SYSTEM FOR SERVICE MIGRATION - A method for service migration is disclosed. A first Serving-Call Session Control Function (S-CSCF) receives a service migration command; the first S-CSCF receives a user's register message sent by an Interrogating-Call Session Control Function (I-CSCF), and decides, according to a preset configuration policy, whether to migrate the user's service. An apparatus and a system for service migration are also disclosed. By using the method, apparatus and system disclosed herein, the user's service can be migrated flexibly. | 10-20-2011 |
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| 20110168353 | FRONT END WATER BOX WITH ON-LINE RUBBER BALL CLEANING FUNCTION IN THE TUBULAR CONDENSER OF A WATER COOLED CHILLER - A front end water box with an on-line rubber ball cleaning function in a tubular condenser of a water cooled chiller is provided. A front end water box and an automatic on-line rubber ball cleaning device are integrated. Besides the structure of a normal front end water box, a ball receiving device, a rubber ball collection cavity, a ball sending device, a division drainage device, a ball sending division separator, a ball observer, an automatic rubber ball receiving-and-sending control valve, an automatic terminal temperature difference (TTD) monitoring and recording device, and an automatic rubber ball cleaning controller are further included. Therefore, division cleaning, on-line observation, and rubber ball replacement are automatically realized, the operation TTD of the chiller is automatically displayed and recorded, and a function of manually adjusting the cleaning frequency, period, and start and stop is achieved, so as to ensure that the TTD increase of the chiller does not exceed 0.3° C., so that the chiller is always in a high efficiency operation status. Also, the front end water box has a simple and compact structure, realizes receiving, sending, and cleaning processes of the rubber balls completely depending on hydraulic principles and a pressure difference between inlet and outlet cooling water, needs no external power, is energy saving and environmentally friendly, and is able to be delivered with a water cooled chiller. | 07-14-2011 |
