Patent application number | Description | Published |
20150305459 | PROTECTION DEVICE FOR AN ELECTRONIC DEVICE - A protection device includes a receiving portion for receiving an electronic device and a cover portion pivotally connected to one side of the receiving portion for opening or covering the receiving portion. The cover portion includes a first reinforcing member, two right angle trapezoid-shaped second reinforcing members symmetrically located at two opposite sides of the first reinforcing member, two third reinforcing members, and a fourth reinforcing member. The two third reinforcing members respectively located between the two second reinforcing members and the fourth reinforcing member. The first, second, third and fourth reinforcing members are connected flexibly to each other. When the first reinforcing member is folded relative to the fourth reinforcing member and the second reinforcing members contact the first reinforcing member, the cover portion is rotated to allow the first reinforcing member to abut against a back of the receiving portion. | 10-29-2015 |
20150313033 | PROTECTION DEVICE FOR AN ELECTRONIC DEVICE - A protection device includes a receiving portion capable of receiving an electronic device and a cover pivotally connected to one side of the receiving portion for opening or covering the receiving portion. The cover includes a first reinforcing member, a second reinforcing member, two third reinforcing members symmetrically located at two opposite sides of the first reinforcing member, two fourth reinforcing members located between the two third reinforcing members and the second reinforcing member, two fifth reinforcing member symmetrically located at two opposite sides of the third reinforcing member, and two sixth reinforcing members respectively located between the two fourth reinforcing members and the two fifth reinforcing members. When the fifth reinforcing members and the sixth reinforcing members are folded outward, and the first reinforcing member is folded toward and attached to the second reinforcing member, the cover is rotated to support the back of the receiving portion. | 10-29-2015 |
Patent application number | Description | Published |
20140019417 | METHOD AND APPARATUS FOR MANAGING PERSONAL INFORMATION IN A COMMUNICATION SYSTEM - Provided is a method of managing personal information in a communication system that provides a Converged Address Book (CAB) service, the method including generating, by a CAB user, a restoration request for restoring a personal document, which includes a document recognition value of a personal document stored in the CAB, current version information of the personal document, and property information instructing restoration of the personal document to a previous version of the current version, transmitting, by the CAB user, the restoration request to a server that manages the CAB through an arbitrary device, and receiving, by the CAB user, a response indicating that the personal document is restored to the previous version of the current version from the server through the arbitrary device. | 01-16-2014 |
20140364175 | METHOD AND APPARATUS FOR CONTROLLING POWER OF TERMINAL - A terminal communicating with at least one wireless communication device determines whether a first data is received from the at least one wireless communication device in a first mode, in which power is supplied to a display portion, determines whether a second data is received during a first time period from the time when the first data is received, and switches to a second mode in which the power supplied to the display portion is blocked according to whether the second data is received. | 12-11-2014 |
Patent application number | Description | Published |
20150221731 | VERTICAL POWER MOSFET HAVING PLANAR CHANNEL AND ITS METHOD OF FABRICATION - A power MOSFET cell includes an N+ silicon substrate having a drain electrode. A low dopant concentration N-type drift layer is grown over the substrate. An N-type layer, having a higher dopant concentration than the drift region, is then formed and etched to have sidewalls. A P-well is formed in the N-type layer, and an N+ source region is formed in the P-well. A gate is formed over the P-well's lateral channel and has a vertical extension next to the top portion of the sidewalls. A positive gate voltage inverts the lateral channel and increases the conduction along the sidewalls to reduce on-resistance. A vertical shield field plate is also located next to the sidewalls and extends virtually the entire length of the sidewalls. The field plate laterally depletes the N-type layer when the device is off to increase the breakdown voltage. | 08-06-2015 |
20150221765 | VERTICAL POWER MOSFET INCLUDING PLANAR CHANNEL AND VERTICAL FIELD - A power MOSFET cell includes an N+ silicon substrate having a drain electrode. A low dopant concentration N-type drift layer is grown over the substrate. Alternating N and P-type columns are formed over the drift layer with a higher dopant concentration. An N-type layer, having a higher dopant concentration than the drift region, is then formed and etched to have sidewalls. A P-well is formed in the N-type layer, and an N+ source region is formed in the P-well. A gate is formed over the P-well's lateral channel and next to the sidewalls as a vertical field plate. A source electrode contacts the P-well and source region. A positive gate voltage inverts the lateral channel and increases the conduction along the sidewalls. Current between the source and drain flows laterally and then vertically through the various N layers. On resistance is reduced and the breakdown voltage is increased. | 08-06-2015 |
20160027880 | VERTICAL POWER MOSFET HAVING PLANAR CHANNEL AND ITS METHOD OF FABRICATION - A power MOSFET cell includes an N+ silicon substrate having a drain electrode. A low dopant concentration N-type drift layer is grown over the substrate. An N-type layer, having a higher dopant concentration than the drift region, is then formed and etched to have sidewalls. A P-well is formed in the N-type layer, and an N+ source region is formed in the P-well. A gate is formed over the P-well's lateral channel and has a vertical extension next to the top portion of the sidewalls. A positive gate voltage inverts the lateral channel and increases the conduction along the sidewalls to reduce on-resistance. A vertical shield field plate is also located next to the sidewalls and extends virtually the entire length of the sidewalls. The field plate laterally depletes the N-type layer when the device is off to increase the breakdown voltage. | 01-28-2016 |
Patent application number | Description | Published |
20080265758 | Organometallic complexes and organic electroluminescence device using the same - An organometallic complex that increases an energy band gap between HOMO and triplet MLCT states, and enables highly efficient phospholuminescence and can be used for an organic electroluminescent device. The organometallic complex, which is suitably used for forming an organic layer of the organic electroluminescent device, provides a luminescence maximum emission in the wavelength range of 400-650 nm, and induces white electroluminescence when combined with green or red luminescent materials. | 10-30-2008 |
20090021153 | Electroluminescent device and method for preparing the same - An electroluminescent device comprises a substrate, a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode, and including at least a light-emitting layer. A metal nano pattern which enables emission of polarized light is provided on one surface of at least one of the first electrode and the second electrode, wherein a grating period of the metal nano pattern satisfies the relation of Formula 1 below. A method of preparing the electroluminescent device comprises providing a substrate, first and second electrodes, and an organic layer including a light-emitting layer, with a metal nano pattern being provided on at least one of the first and second electrodes. Formula 1 is described in more detail in the description of the invention. The electroluminescent device can achieve emission of polarized light, without reforming materials used in forming the organic layer. | 01-22-2009 |
20110193069 | ORGANIC LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light emitting device and a method of manufacturing the same, the organic light emitting device includes a first electrode, a second electrode, and an organic layer that has at least a multi-coated emissive layer and which is interposed between the first and second electrodes. The multi-coated emissive layer is a single layer composed of a neutral emissive material and an n | 08-11-2011 |
Patent application number | Description | Published |
20140133607 | Method and Mobile Device for Joint Cell Identity Detection and Cell Measurement for an LTE System - The present invention relates to a method and system for communication in a mobile device. First and second OFDM symbols containing first and second received cell-specific reference subcarriers, respectively, are received. First and second received cell-specific reference subcarriers of the first and second OFDM symbols are extracted. A pair of received subcarriers is generated by computing the scalar product of the first received cell-specific reference subcarrier and the conjugate of the second received cell-specific reference subcarrier. A reference sequence is provided, that contains pairs of reference subcarriers for multiple, possible combinations of cell-IDs. The pair of received subcarriers is correlated with each pair of reference subcarriers of the reference sequence to generate cell-specific correlation values associated with each cell-ID of a plurality of cell-specific correlation values. The cell-ID of the strongest cell is determined by searching for the highest correlation value. | 05-15-2014 |
20140274052 | FAST HANDOVER METHOD FOR CROSS SECTOR SCENARIO IN MOBILE COMMUNICATION SYSTEMS - A method for handover in a mobile communication system, wherein cell search is performed by determining cell identities based on cell identity information transmitted within downlink data is provided. The cell power of cells detected by cell search is measured. Moreover, the cell power of an additional cell is measured, the additional cell having a cell identity that is related to a cell identity of a cell detected by cell search in that the additional cell and the cell detected by cell search are adjacent cells. The method is applicable in cross-sector scenarios avoiding call drops due to lengthy cell detection. | 09-18-2014 |
20140364065 | METHOD FOR JOINT CELL MEASUREMENT AND SYSTEM INFORMATION IDENTIFICATION - The present disclosure relates to a method for determining an impact factor of a mobile communication system, wherein reference signals of a detection space defined by an impact factor are examined. Examining in this context refers to trying to detect, hence blindly detect, cell specific reference signals. The detection space is divided into a plurality of subsets, wherein each subset of the plurality of subsets is associated with a specific value of said impact factor. The specific value of said impact factor is identified for which an existence of cell specific reference signals has been detected in the subset associated with said specific value. Thus, the system information defined by a specific value of an impact factor is blindly detected. | 12-11-2014 |
20150011207 | METHOD AND RELATED MOBILE DEVICE FOR SEARCHING FOR A MOBILE NETWORK - Instead of performing a complete frequency scan and a subsequent cell scan on detected candidate frequencies, according to the method for searching for a PLMN as disclosed herein, the frequency scan is interrupted for performing an immediate cell scan based on inspection results for a specific candidate frequency obtained during the frequency scan. During the cell scan, the bandwidth among other parameters of the cell may be detected. Based on the detected bandwidth, certain candidate frequencies falling into the detected bandwidth can be skipped when resuming the frequency scan. | 01-08-2015 |
20150038137 | METHOD AND RELATED MOBILE DEVICE FOR CELL SEARCH IN MULTI RADIO ACCESS TECHNOLOGY SYSTEMS - In one implementation, a radio is tuned to a frequency and bandwidth such that it can accommodate a plurality of frequency channels of a plurality of RATs. Radio samples are acquired by the radio and stored to an input memory. The RAT specific cell search further includes performing a RAT specific frequency scan on the set of radio samples to detect candidate frequencies for each RAT. Performing the RAT specific frequency scan may comprise dividing the set of radio samples into the plurality of frequency channels for each RAT, sensing the energy for each channel for each RAT, determining a set of frequency channels having highest energy for each RAT and attempting to detect candidate frequencies having highest energy for each RAT. | 02-05-2015 |
Patent application number | Description | Published |
20090070394 | CANONICAL SIGNED DIGIT MULTIPLIER - A multiplier is able to multiply an input data value by a selected constant value in CSD form. The selected constant value has a plurality of pairs of bits, and the multiplier includes multiplexers, each controlled by a respective pair of bits of the selected constant value. Each of the multiplexers has a plurality of inputs, and is connected to receive the input data value, the inverse of the input data value, and all zeros on said inputs, and it is controlled such that it outputs either the input data value, the inverse of the input data value, or all zeros, depending on the values of the respective pair of bits of the selected constant value. Variable shift blocks are each connected to receive an input from a respective one of said multiplexers, and are each adapted to shift their received input by a first bit shift value or a second bit shift value, depending on the values of the respective pair of bits of the selected constant value, wherein the first bit shift value and the second bit shift value differ by 1. The multiplier also includes combination circuitry, for receiving the outputs from the plurality of shift blocks, and for combining the outputs from the plurality of shift blocks and applying further bit shifts, to form an output value equal to the result of multiplying the input data value by the selected constant value. | 03-12-2009 |
20090213981 | LOW-POWER REGISTER ARRAY FOR FAST SHIFT OPERATIONS - A data register ( | 08-27-2009 |
20100042899 | DEINTERLEAVER - A deinterleaver for a wireless communication device is provided that is simple and inexpensive to implement. In particular, a deinterleaver for deinterleaving a stream of data bits representing a plurality of symbols that have been interleaved using a multi-stage interleaving scheme is provided, the deinterleaver comprising preprocessing means for ordering the data bits in the stream into pairs, such that the data bits in the pair are consecutive data bits from a symbol; at least one memory for storing the paired bits, such that each pair of data bits is stored in a respective location in the memory; and a read and write address generator for the at least one memory, the generator being adapted to determine the addresses in the at least one memory that pairs of data bits are to be stored, and to determine the addresses in the at least one memory that pairs of data bits are to be read from. | 02-18-2010 |
20100067629 | PERFORMANCE IN A TIME-FREQUENCY INTERLEAVED ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM - In one embodiment, a TFI-OFDM receiver system ( | 03-18-2010 |
20100158046 | METHOD AND APPARATUS FOR GENERATING DATA PACKETS FOR TRANSMISSION IN AN OFDM COMMUNICATION SYSTEM - Method and apparatus for generating data packets for transmission in an orthogonal frequency division modulated communication system, in which preamble sequence for each packet is generated in the frequency domain or the time domain depending on at least two conditions to save power consumption and enable implementation in a single CMOS chip. | 06-24-2010 |
Patent application number | Description | Published |
20140293954 | Method for Determining Cell Identification Information - A method includes receiving a signal including a two-dimensional signal pattern in a time-frequency representation, the two-dimensional signal pattern including reference signals at first predetermined positions in the two-dimensional signal pattern. The method further includes determining a frequency-time transformation based on the reference signals to obtain a time-domain signal. The method further includes determining a first cell identification information based on a threshold criterion with respect to the time-domain signal. | 10-02-2014 |
20150215884 | METHOD AND RELATED MOBILE DEVICE FOR REFERENCE SIGNAL TIME DIFFERENCE BASED LOCALIZATION - The method according to the present disclosure introduces acquisition and tracking modes for a mobile device assisted multilateration based localization method. The method is employed for determining a relative time difference between a positioning reference cell and at least two other detectable positioning cells. The method includes in a mobile device attempting to detect a reference signal of a positioning cell to determine the timing of a detectable positioning cell by either applying sliding window approach to acquire the positioning cell or a single window approach to track the positioning cell. The sliding window approach within a search window is applied to acquire the positioning cell when a coarse timing of the positioning cell has not yet been achieved. A coarse timing is said to be achieved when only a fine timing is further required. This is the case when the remaining search window has a size that is not larger than the capture range capability of the mobile device. Conversely, a single window approach is applied to track the positioning cell when a coarse timing of the positioning cell has been achieved or when the search window is not larger than a capture range capability of the mobile device. Ultimately, the method includes computing the time difference between the positioning reference cell and the at least two other detectable positioning cells. | 07-30-2015 |
20150281988 | METHOD AND RELATED MOBILE DEVICE FOR DETERMINING A REFERNCE SIGNAL RECEIVED POWER - The present disclosure relates to a method and related mobile device for estimating a channel by choosing a subset of correlated channel coefficients and estimating the reference signal received power of the subset of correlated channel coefficients based on a cross-correlation between channel coefficients of the subset of correlated channel coefficients. | 10-01-2015 |
20150282055 | METHOD AND RELATED MOBILE DEVICE FOR CELL SEARCHING WITH LOW MEMORY REQUIREMENT - The present solution relates to a method for searching for a cell in a cellular mobile communication system having low memory requirement. The method comprises: receiving in a receiver a signal carrying a reference signal having a first data rate, decimating the signal to generate a down-sampled signal having a second data rate, phase-compensating a phase distortion introduced by the decimating, and correlating the down-sampled signal against a phase-compensated local reference signal or a phase-compensated down-sampled signal against a local reference signal. When buffering the down-sampled signal prior or subsequent to phase-compensating, the buffer size is minimized as 1× oversampling is employed compared to 2× oversampling of current solutions. | 10-01-2015 |
Patent application number | Description | Published |
20140059843 | FOUR TERMINAL NANO-ELECTROMECHANICAL SWITCH WITH A SINGLE MECHANICAL CONTACT - A nano-electro-mechanical switch includes an input electrode, a body electrode, an insulating layer, an actuator electrode, an output electrode, and a cantilever beam adapted to flex in response to an actuation voltage applied between the body electrode and the actuator electrode. The cantilever beam includes the input electrode, the body electrode and the insulating layer, the latter separating the body electrode from the input electrode, the cantilever beam being configured such that, upon flexion of the cantilever beam, the input electrode comes in contact with the output electrode at a single mechanical contact point at the level of an end of the cantilever beam. | 03-06-2014 |
20140061013 | FOUR TERMINAL NANO-ELECTROMECHANICAL SWITCH WITH A SINGLE MECHANICAL CONTACT - A nano-electro-mechanical switch includes an input electrode, a body electrode, an insulating layer, an actuator electrode, an output electrode, and a cantilever beam adapted to flex in response to an actuation voltage applied between the body electrode and the actuator electrode. The cantilever beam includes the input electrode, the body electrode and the insulating layer, the latter separating the body electrode from the input electrode, the cantilever beam being configured such that, upon flexion of the cantilever beam, the input electrode comes in contact with the output electrode at a single mechanical contact point at the level of an end of the cantilever beam. | 03-06-2014 |
20140062532 | NANO-ELECTRO-MECHANICAL-SWITCH ADIABATIC DYNAMIC LOGIC CIRCUITS - A dynamic logic gate includes a nano-electro-mechanical-switch, preferably a four-terminal-nano-electro-mechanical-switch. The invention further refers to dynamic logic cascade circuits comprising such a dynamic logic gate. In particular, embodiments of the invention concern dynamic logic cascade circuits comprising single or dual rail dynamic logic gates. | 03-06-2014 |
20140097870 | NANO-ELECTRO-MECHANICAL-SWITCH ADIABATIC DYNAMIC LOGIC CIRCUITS - A dynamic logic gate includes a nano-electro-mechanical-switch, preferably a four-terminal-nano-electro-mechanical-switch. The invention further refers to dynamic logic cascade circuits comprising such a dynamic logic gate. In particular, embodiments of the invention concern dynamic logic cascade circuits comprising single or dual rail dynamic logic gates. | 04-10-2014 |
Patent application number | Description | Published |
20100301228 | PARTICLE BEAM THERAPY SYSTEM - There is provided a particle beam therapy system that can rapidly change beam energy without increasing the size of a deflection electromagnet even in the case where the number of required beam-energy changes is large. | 12-02-2010 |
20120132826 | PARTICLE BEAM IRRADIATION APPARATUS AND PARTICLE BEAM THERAPY SYSTEM - There is provided a particle beam irradiation apparatus in which two or more pairs of scanning electromagnets are utilized so that scanning of a charged particle beam can be performed with a high accuracy and with a high flexibility in the speed, from a low speed to a high speed. In a particle beam irradiation apparatus that scans an incident charged particle beam on X-direction and Y-direction (two-direction) desired orbits perpendicular to the travelling direction of the charged particle beam and irradiates the charged particle beam onto an irradiation subject, there are provided two or more pairs of scanning electromagnets that scan a charged particle beam in the two directions; the desired orbit is given by time-series desired orbit data in which desired irradiation positions corresponding to time are determined; and command values for respective scanning electromagnets in the two or more pairs of scanning electromagnets are generated based on plural pieces of data obtained by frequency-separating the time-series desired orbit data. | 05-31-2012 |
20120199757 | PARTICLE BEAM IRRADIATION SYSTEM AND PARTICLE BEAM IRRADIATION METHOD - A particle beam irradiation system comprising a first deflector having the maximum deflection amount which enables to move a particle beam in one direction to the maximum width of a target and a second deflector having the maximum deflection amount is less than the maximum deflection amount of the first deflector performs a control in which the particle beam is moved by increasing at least a deflection amount of the second deflector when the particle beam is moved, and performs a deflection substitution control in which a deflection of the second deflector is substituted to a deflection of the first deflector by decreasing the deflection amount of the second deflector and changing a deflection amount of the first deflector so as to make a position of the particle beam in the target dwell when the particle beam dwells. | 08-09-2012 |
20130190548 | BEAM POSITION MONITOR AND PARTICLE BEAM THERAPY SYSTEM - A charged particle beam position monitor is provided with a plurality of position monitors and a beam data processing device that performs calculation processing of the state of a charged particle beam, based on a plurality of signals outputted from the position monitors. The beam data processing device includes a plurality of channel data conversion units that perform AD conversion processing of the plurality of signals outputted from the position monitors; a position size processing unit, for each of the position monitors, that calculates the beam position of the beam, based on voltage information obtained through the AD conversion processing; and an integrated control unit that controls the plurality of channel data conversion units in such a way that while the beam is irradiated onto an irradiation subject, AD conversion processing of the signals is performed at different timings for the respective position monitors. | 07-25-2013 |
20140187847 | PARTICLE BEAM THERAPY SYSTEM - A particle beam therapy system comprising a treatment table, a treatment table control unit and an irradiation control unit configured to output an instruction for controlling the treatment table control unit, an accelerator and a scanning electromagnet, wherein after the treatment table control unit controls the treatment table so as for a patient isocenter which is reference position of an affected area of a patient to move to a position of an irradiation isocenter which is set at a position which is closer to an irradiation nozzle than an equipment isocenter which is reference of positional relation of the irradiation nozzle and the treatment table, the irradiation control unit outputs an instruction for irradiating the patient with a particle beam. | 07-03-2014 |
Patent application number | Description | Published |
20080298553 | Particle-Beam Treatment System - Provision is made for a particle-beam treatment system in which, even during particle-beam irradiation, the shape of a multileaf collimator is monitored. The particle-beam treatment system, in which multi-layer conformal irradiation is performed while the setting of the shape of the multileaf collimator in an irradiation head is changed during particle-beam irradiation, is provided with an optical shape-monitoring unit mounted attachably and detachably in the snout portion at the downstream side of the multileaf collimator, the optical shape-monitoring unit having a shape-monitoring mirror, opposing the multileaf collimator, for monitoring the shape of the multileaf collimator; a video camera for shooting the multileaf-collimator shape reflected by the shape-monitoring mirror; and an image monitor for displaying an image of the video camera that shoots the shape of the multileaf collimator. | 12-04-2008 |
20090003524 | STACKED CONFORMATION RADIOTHERAPY SYSTEM AND PARTICLE BEAM THERAPY APPARATUS EMPLOYING THE SAME - A stacked conformation radiotherapy system capable of homogenizing a radiation dose distribution, including an irradiation head and irradiation control means. The irradiation head projects a particle beam accelerated by an accelerator, toward an object to-be-irradiated, and it includes wobbler electromagnets for deflecting and scanning the particle beam. In carrying out stacked conformation radiotherapy by deflecting and scanning the particle beam, the irradiation control means subjects the wobbler electromagnets to magnetization controls so that the particle beam may depict a one-stroke revolving orbit which begins with a start point and returns to the start point, and it performs a control so that the irradiation period of the particle beam to be outputted from the irradiation head may become integral times a wobbler cycle which is required for the particle beam to make one revolution of the revolving orbit. | 01-01-2009 |
20100090123 | SCANNING IRRADIATION DEVICE OF CHARGED PARTICLE BEAM - An inexpensive scanning irradiation device of a particle beam is obtained without using a rotating gantry. A first scanning electromagnet and a second scanning electromagnet, whose deflection surfaces of the particle beam are the same, and which bend the particle beam having an incident beam axis angle of approximately 45 degrees relative to a horizontal direction in reverse directions to each other; an electromagnet rotation driving mechanism which integrates the first and the second scanning electromagnets and rotates these scanning electromagnets around the incident beam axis; and a treatment bed are provided. The particle beam deflected by the first and the second scanning electromagnets can be obtained at a range of −45 degrees to +45 degrees in deflection angle from an incident beam axis direction. | 04-15-2010 |
20100288946 | CHARGED PARTICLE BEAM IRRADIATION APPARATUS - In a charged particle beam irradiation apparatus to be adapted to a particle beam cancer treatment system or the like, a desired depth dose distribution is highly precisely created. In the charged particle beam irradiation apparatus that irradiates a particle beam, which is radiated from a particle beam generation unit, to a subject to be irradiated via a ridge filter exhibiting a cyclic thickness distribution for causing the particle beam to exhibit a desired energy distribution, the ridge filter has plural ridges thereof arranged to be perpendicular to entering directions of the particle beam. | 11-18-2010 |
20110108737 | PARTICLE BEAM IRRADIATION APPARATUS - In order to obtain a particle beam irradiation apparatus that enlarges the dose distribution of beam spots while suppressing a decrease of the maximum available range of a charged particle beam, the particle beam irradiation apparatus includes a particle beam acceleration means; particle beam transport means; scanning apparatus that includes first scanning means and second scanning means, and two-dimensionally scans the beam; and irradiation control means that controls the scanning apparatus so as to irradiate the beam onto a target region including a plurality of small regions. The irradiation control means controls the first scanning means so as to scan the beam over a small region serving as an irradiation subject among the plurality of the small regions, and controls the second scanning means so as to change the small region serving as the irradiation subject to be a different small region among the plurality of the small regions. | 05-12-2011 |
20110204262 | PARTICLE BEAM THERAPY SYSTEM - Light from a light source is made to be reflected by a light source mirror and to pass through a variable collimator, an irradiation field shape shaped by the variable collimator is projected on a photographing screen by the light passed through the variable collimator, a projection portion of the photographing screen is photographed by a photographic device, and an image photographed by the photographic device is analyzed by an image processor. | 08-25-2011 |
20110218429 | PARTICLE BEAM THERAPY SYSTEM - There is obtained a particle beam therapy system in which the beam size is reduced. There are provided an accelerator | 09-08-2011 |
20110260074 | PARTICLE BEAM THERAPY SYSTEM - The objective of the present invention is to reduce the effect of the hysteresis of a scanning electromagnet so as to obtain a particle beam therapy system that realizes high-accuracy beam irradiation. There are included an irradiation management apparatus ( | 10-27-2011 |
20120217903 | CIRCULAR ACCELERATOR AND OPERATING METHOD THEREFOR - The circular accelerator comprises: a bending electromagnet that generates a bending magnetic field; a radio-frequency power source that generates a radio-frequency electric field in accordance with an orbital frequency of charged particles; a radio-frequency electromagnetic field coupling part connected to the radio-frequency power source; an acceleration electrode connected to the radio-frequency electromagnetic field coupling part; and an acceleration-electrode-opposing ground plate provided to form an acceleration gap between the plate itself and the acceleration electrode, for generating the radio-frequency electromagnetic field in an orbiting direction of the charged particles; wherein the bending electromagnet generates the bending magnetic field varying in such a way that the orbital frequency of the charged particles varies in a variation range of 0.7% to 24.7% with respect to an orbital frequency at the charged-particles' extraction portion, during a time of injection to extraction of the particles. | 08-30-2012 |
20130053617 | PARTICLE BEAM IRRADIATION APPARATUS AND PARTICLE BEAM THERAPY SYSTEM - A particle beam irradiation apparatus comprises a particle beam shielding member which shields a part of a particle beam which is scanned, a prompt signal detector which detects a prompt signal which is generated when the particle beam which is scanned collides with the particle beam shielding member and a signal comparison device which predicts and obtains a generation pattern of a prompt signal which is generated with a predetermined scanning pattern and stores as a signal time pattern for comparison, wherein the signal comparison device detects an abnormality of scanning of a particle beam or the particle beam shielding member by comparing a detected signal time pattern which is a time pattern of a signal which is detected by the prompt signal detector to a signal time pattern for comparison which is stored. | 02-28-2013 |
20130320245 | PARTICLE-BEAM ENERGY CHANGING APPARATUS, PARTICLE BEAM THERAPY SYSTEM INCLUDING THE SAME, AND METHOD OF CHANGING PARTICLE BEAM ENERGY - There is provided a particle-beam energy changing apparatus that is capable of changing energy of a particle beam quickly and silently, in which a first energy changing unit and a second energy changing unit for changing energy of a particle beam passing therethrough by varying thicknesses of their attenuators attenuating the particle beam energy are arranged so that the particle beam passes through the first energy changing unit and the second energy changing unit; and the maximum attenuation amount by the first energy changing unit is set smaller than the maximum attenuation amount by the second energy changing unit. | 12-05-2013 |
20140061498 | BEAM DATA PROCESSING APPARATUS AND PARTICLE BEAM THERAPY SYSTEM - A beam data processing apparatus has a plurality of channel data conversion units that convert a plurality of analogue signals outputted from a position monitor into digital signals, a position size processing unit that calculates a beam position, based on voltage information items obtained through processing by the plurality of channel data conversion units, an abnormality determination processing unit that determines the beam position and generates a position abnormality signal, and an integrated control unit that controls the plurality of channel data conversion units in such a way that while a beam is stopped at an irradiation spot, digital signal conversion processing is implemented two or more times; the channel data conversion unit has a plurality of A/D converters, a demultiplexer that distributes analogue signals, and a multiplexer that switches respective digital signals processed by the ND converters so as to output them to the position size processing unit. | 03-06-2014 |
20150038766 | PARTICLE BEAM SCANNING IRRADIATION SYSTEM - A particle beam scanning irradiation method includes the steps of calculating a planned irradiating particle count of a particle beam for each of irradiation spots, on the basis of a relative amount of particle beam irradiation and a prescription particle-beam dose determined from a particle-beam therapy plan; simulating an irradiation process of the particle beam at each irradiation spot, on the basis of the planned irradiating particle count and a beam current waveform of the particle beam, and calculating a particle count of the particle beam irradiating the diseased portion during a scan shift of the particle beam; correcting the planned irradiating particle count for each irradiation spot by using the irradiating particle count during the scan shift; converting the corrected planned-irradiation particle count into a count value used in a dose monitor; and irradiating the irradiation spot with the particle beam, on the basis of the converted count value. | 02-05-2015 |
20150080631 | PARTICLE BEAM SCANNING IRRADIATION SYSTEM - A particle beam scanning irradiation system includes a computer establishing a scanning sequence for irradiation of a tumor portion in a patient; and a particle beam irradiation device irradiating the tumor portion in accordance with the established scanning sequence of the particle beam. The computer selects all conceivable combinations of pairs of irradiation spots among the plurality of irradiation spots arranged in the tumor portion, and determines whether each path for the particle beam to shift between two spots constituting the selected pair passes through the tumor portion; determines a penalty matrix expressing whether each path passes through the tumor portion on the basis of the determination result; evaluates a function for the shift paths on the basis of an optimizing algorithm, and establishes the scanning sequence of the particle beam by an optimized solution of the function. | 03-19-2015 |