Patent application number | Description | Published |
20080210757 | Identification Tag, Object Adapted to Be Identified, and Related Methods, Devices, and Systems - Disclosed is an object ( | 09-04-2008 |
20100277170 | HEAT PIPE COOLED SUERCONDUCTING MAGNETS WITH CERAMIC COIL FORMS - A system and method for a magnetic resonance (MR) imaging system includes a coil form, at least one magnet positioned about the coil form and configured to generate a magnetic field, at least one gradient coil for manipulating the magnetic field generated by the at least one magnet by way of a gradient field, and a heat pipe thermally connected to the coil form and having a cryogen therein. The MR imaging system also includes a cryocooler connected to the heat pipe to cool the heat pipe and the cryogen, wherein the coil form is comprised of a thermally conductive material in which eddy currents are substantially reduced during operation of the at least one gradient coil. The present invention has been described in terms of the preferred embodiment, and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims. | 11-04-2010 |
20100284292 | PERSISTENT SCHEDULING METHOD AND APPARATUS BASED ON SEMI-GROUPING AND STATISTICALLY MULTIPLEXING - A persistent scheduling method and apparatus based on semi-grouping and statistically multiplexing, wherein a predetermined number of user equipments are grouped into a user equipment group to share allowable maximum transmission times of retransmission processes in different time slots each having a predetermined size, according to a predetermined set of criteria on communication conditions; and each user equipment within one user equipment group is allocated to use a corresponding time slot in a time division multiplexing mode. | 11-11-2010 |
20100284364 | SEMI-PERSISTENT SCHEDULING METHOD AND APPARATUS BASED ON STATISTICALLY MULTIPLEXING IN TIME AND FREQUENCY RESOURCES - A semi-persistent scheduling method and apparatus based on statistically multiplexing in time and frequency resources, the method comprises steps of: allocating each initial transmission to use fixed time and frequency resources reserved for initial transmission by using a persistent grant, and allocating each retransmission to use time resource reserved for retransmission by using a persistent grant and dynamically allocating each retransmission to use frequency resource reserved for retransmission by using a dynamic grant or a default grant, wherein the initial transmission and the retransmission share the frequency resources within the same time slot. | 11-11-2010 |
20110069418 | PASSIVE QUENCH PROTECTION CIRCUIT FOR SUPERCONDUCTING MAGNETS - A superconducting magnet apparatus that in one embodiment includes at least one superconducting coil and a passive quench protection circuit electrically coupled to the coil in parallel. The circuit includes a heater and a current limiter connected in series. The heater is thermally coupled to the coil and the current limiter blocks current through the circuit at a current lower than the current rating of the heater. | 03-24-2011 |
20110096733 | METHOD FOR SCHEDULING RESOURCE, NETWORK ELEMENT AND USER EQUIPMENT - The present invention proposes a method for scheduling resource in a packet network, a network element for exchanging signaling with user equipments and a user equipment, wherein user equipments communicate therebetween using the resource allocated by network elements, said communication comprises talk-spurt periods during which data packets are transmitted and silent periods during which silence descriptor packets are transmitted, said method for scheduling resource comprising: said network element allocates resource for said user equipment for communication; both said user equipment and said network element detect the presence of said silence descriptor packet; said user equipment stops using the allocated resource and said network element releases the allocated resource, when said silence descriptor packet is detected; said network element determines the end of the interval for transmitting said silence descriptor packet; said network element allocates new resource to said user equipment when said interval ends or when a request for allocating resource is received from said user equipment before the end of said interval. | 04-28-2011 |
20110101982 | CRYOGENIC SYSTEM AND METHOD FOR SUPERCONDUCTING MAGNETS - A cryogenic system for a superconducting magnet comprises a closed-loop cooling path. The closed-loop cooling path comprises a magnet cooling tube thermally coupled to the superconducting magnet. The magnet cooling tube comprises a cryogen flow passage. The closed-loop cooling tube further comprises a re-condenser is fluidly coupled to the magnet cooling tube through tube sections and a liquid cryogen container fluidly coupled between the magnet cooling tube and the re-condenser. At least one gas tank is fluidly coupled to the magnet cooling tube through a connection tube. | 05-05-2011 |
20110110312 | METHOD FOR SCHEDULING RESOURCE, NETWORK ELEMENT AND USER EQUIPMENT - The present invention proposes a method for scheduling resource in a packet network and a network element for exchanging signaling with user equipments, wherein user equipments communicate therebetween using the resource allocated by network elements, said communication comprises talk-spurt periods during which data packets are transmitted and silent periods during which silence descriptor packets are transmitted, said method for scheduling resource comprising: said network element allocates resource for said user equipments for communication; both said user equipment and said network element detect the presence of said silence descriptor packet, and said network element determines the optimized number of resource unit(s) to be allocated to said user equipment during the interval for transmitting said data packet, based on the coding rate of said user equipment, the selected modulation coding scheme and the valid transmission times; the network element starts timing and the user equipment stops using the allocated resource if a silence descriptor packet is detected; when the timing finishes or a request for allocating resource is received from the user equipment before the end of said timing, said network element allocates the determined optimized number of resource unit(s) to said user equipment, and said user equipment begins to use said determined optimized number of resource unit(s); said network element determines the end of the interval for transmitting said data packet by detecting the silence descriptor packet; and when both said user equipment and said network element detect a silence descriptor packet, said user equipment stops using said determined optimized number of resource unit(s), while said network element releases said determined optimized number of resource unit(s). | 05-12-2011 |
20110179809 | COOLING SYSTEM AND METHOD FOR SUPERCONDUCTING MAGNETS - A method for cooling a superconducting magnet enclosed in a cryostat of a magnetic resonance imaging system comprises introducing a gas into a cooling path in the cryostat from an input portion outside the cryostat. A heat exchanger in the cooling path is cooled by a refrigerator outside the cryostat. The gas at the heat exchanger is cooled as a cold gas or is condensed at the heat exchanger into a liquid cryogen. The cold gas or liquid cryogen from the heat exchanger flows through at least a connection tube to a magnet cooling tube, which is in thermal contact with the superconducting magnet. Heat from the superconducting magnet is removed by warming the cold gas into warm gas or by the boiling the liquid cryogen into boiled-off gas. The warm gas or boiled-off gas is transmitted back to the heat exchanger to re-cool the warm gas or re-condense the boiled-off gas for further cooling the superconducting magnet to a superconducting temperature. The input portion is closed to make the cooling path as a closed-loop for maintaining the superconducting magnet below the superconducting temperature. | 07-28-2011 |
20110193665 | SUPERCONDUCTING MAGNETS WITH AN IMPROVED SUPPORT STRUCTURE - A superconducting magnet is described and includes at least one superconducting coil, at least one support member coupled to the superconducting coil and at least one compliant interface between the superconducting coil and the support member. The superconducting coil defines a radial direction. The superconducting coil supports the superconducting coil along an axial direction that is substantially perpendicular to the radial direction. The compliant interface is configured to move along the radial direction when the superconducting magnet is energized. | 08-11-2011 |
20120004109 | MAGNET ASSEMBLIES AND METHODS FOR TEMPERATURE CONTROL OF THE MAGNET ASSEMBLIES - A magnet assembly is provided. The magnet assembly comprises a magnet configured to generate a magnetic field and an iron shield configured to shield the magnet. The magnet assembly further comprises one or more positive temperature coefficient heaters disposed on the iron shield and configured to stabilize temperature of the iron shield. An iron shield assembly and a method for temperature control of the magnet assembly are also presented. | 01-05-2012 |
20120007703 | CURRENT LEAD ASSEMBLY FOR SUPERCONDUCTING MAGNET - A current lead assembly includes a current lead having an end, at least one heat station thermally coupled to the end, a cryogen-flow path extending through the heat station and comprising at least one connection, and a cryogen generation source fluidly coupled to the cryogen-flow path through the connection. | 01-12-2012 |
20120008565 | METHODS AND APPARATUSES FOR MULTI-CELL COLLABORATIVE COMMUNICATION IN A MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM - A method and device for multiple-cell collaborative communication in a multiple input multiple output (MIMO) system are disclosed by the present invention. In said method, base stations participating in multiple-cell collaborative MIMO communication perform precoding and scheduling one by one. At first, a first base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting; then the scheduling and setting results of the first base station are kept invariant, so that a second base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting, according to the scheduling and setting results of the first base station. If a third base station participates in the multiple-cell collaborative MIMO communication, the scheduling and setting results of the first and second base stations are kept invariant, so that the third base station selects the mobile terminals participating in the collaborative communication and performs transmission setting, including pre-coding setting, according to the scheduling and setting results of the first and second base stations. Based on the gradual collaborative communication method, fully distributed multiple-cell collaborative MIMO communication can be achieved. | 01-12-2012 |
20120068795 | MAGNET ASSEMBLIES AND METHODS FOR MAKING THE SAME - A superconducting magnet assembly is provided. The superconducting magnet assembly includes a superconducting magnet configured to generate a static magnetic field, an iron shield configured to shield the superconducting magnet, and a magnetic gradient coil assembly configured to generate a gradient magnetic field. The superconducting magnet assembly further includes one or more magnetic lamination elements disposed on the iron shield to reduce eddy current induced by the gradient magnetic field in the iron shield. A method is also presented. | 03-22-2012 |
20120135868 | SUPERCONDUCTING MAGNET ASSEMBLY AND FABRICATING METHOD - A superconducting magnet assembly includes a bobbin comprising a central bore along a longitudinal direction, and a superconducting coil package wound on the bobbin. The superconducting coil package includes a plurality of superconducting coil layers wound on the bobbin, a plurality of supporting member layers, each of the supporting member layers being between a corresponding two adjacent superconducting coil layers, and a thermal conduction layer between two superconducting coil layers or between a superconducting coil layer and an adjacent supporting member layer. | 05-31-2012 |
20130029849 | SUPERCONDUCTING MAGNET SYSTEM - A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted. | 01-31-2013 |
20130279620 | METHODS OF TRANSMITTING COORDINATE MULTIPLE POINT DATA BASED ON ORTOGONAL COVERING CODES - The present invention relates to methods of transmitting coordinate multiple point data based on orthogonal covering codes. In an embodiment of the present invention, there is provided a method of transmitting downlink data in a base station of a multiple input multiple output system. The method includes: A. determining a plurality of antenna groups from antennas of a plurality of coordinate multiple point cells; B. modulating inter-cell coordinate multiple point downlink data symbols for each antenna groups using different orthogonal covering codes. The orthogonal covering codes have a length not greater than twice the number of the antenna groups. With the methods of the present invention, a base station and a user equipment can distinguish signals from different coordinate multiple point cells, different antenna groups, or different coordinate multiple point clusters, reducing interference between signals from the different coordinate multiple point cells, the different antenna groups, or the different coordinate multiple point clusters. | 10-24-2013 |
20140192783 | INTERFERENCE CANCELLATION METHOD AND APPARATUS FOR ENHANCED PHYSICAL DOWNLINK CONTROL CHANNEL - Embodiments of the present invention provide an interference cancellation method for an enhanced physical downlink control channel E-PDCCH, comprising steps of: (1) allocating different orthogonal covering code OCC sequences to different cells and/or different users; and (2) combining a plurality of control channel elements CCEs constituting one PDCCH with a cell-specific OCC sequence and/or a user-specific OCC sequence respectively, so as to enable a user equipment to cancel interference on the PDCCH. | 07-10-2014 |
20140343312 | Novel method to manufacture surface active compounds such as sulfate betaine - The present invention relates generally to novel methods of preparing compounds such as sulfate betaines by reacting an amine with a cyclic (poly)glycerol sulphate (CGS) compound and the compound such as sulfate betaine products obtained by using the same. | 11-20-2014 |
20150072864 | SUPERCONDUCTING MAGNET SYSTEM - A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted. | 03-12-2015 |