Patent application number | Description | Published |
20100005433 | CIRCUIT DESIGN APPARATUS AND CIRCUIT DESIGN METHOD - A circuit design apparatus for designing an LSI including a memory circuit for storing data and an error protection circuit for performing an error protection over the data stored in the memory circuit on the basis of design information, the circuit design apparatus includes: an extracting unit for extracting information of configuration of the memory circuit with error protection circuit from the design information; and a circuit arrangement controller for determining whether to insert a check circuit for supplying a check signal into the memory circuit to verify the error protection circuit on the configuration information. | 01-07-2010 |
20100061376 | SHARED MEMORY SYSTEM - A shared memory system including: a shared memory includes a plurality of memory banks; a plurality of input ports; a plurality of input buffers; and a controller for controlling writing-into and reading out of the shared memory and for transferring data from each of the input buffers to the shared memory, wherein when one of the memory banks is cycled back next to the starting memory bank, another memory block is to be selected next for writing the remainder of a series of data, said controller controlling each of the input buffers to transfer a plurality of series of data to the shared memory successively with a time gap while switching to said another memory block, said controller offsetting a start memory bank in said another block for start writing the remainder of the series of data by an amount of memory banks corresponding to the time gap. | 03-11-2010 |
20100316053 | ADDRESS LEARNING METHOD AND ADDRESS LEARNING SWITCH - A switch operating in a multistage switch network is provided. The switch includes a plurality of ports, a first processor for processing a source address and a destination address of a packet received by the plurality of ports, and a second processor for including a memory storing data of the packet, and for outputting, under the control of the first processor, the data of the packet stored on the memory, wherein the first processor calculates a hash value of the source addresses of the packet in accordance with a specific hash function, identifies a output port connected to a switch that corresponds to the hash value and is to learn the source address, and causes the second processor to output the data of the packet to the output port. | 12-16-2010 |
20100316057 | Relay device suppressing frame flooding - In a relay device, a first memory stores correspondence information representing a correspondence relationship between a node and a port. A second memory stores information by which a port to suppress flooding of a frame is distinguishable. A relay part limits a port, which floods a frame addressed to a node of which information is not stored in the first memory, based on the information stored in the second memory. | 12-16-2010 |
20110040849 | RELAY DEVICE, MAC ADDRESS SEARCH METHOD - A relay device includes: memories, each memory being operable to store at least a data pair formed of a MAC address and a port number; a search unit to search only amongst ones of the memories having valid data pairs when searching for a port number based upon a MAC address; a data moving unit to move valid data pairs to different locations within the plurality of memories in order to reduce a total number of memories, amongst the plurality thereof, having valid data pairs; and a power supply controller to selectively stop supplying power to ones of the memories storing only invalid data. | 02-17-2011 |
20120011236 | SERVER MANAGEMENT APPARATUS AND SERVER MANAGEMENT METHOD - A computer is communicable with a managed server having a network boot function. The computer refers, when the managed server starts network boot, to data stored in a storage unit which stores status management data and status-program connection data. The status management data specifies an operation status into which the managed server is to be shifted when the managed server has been network booted. The status-program connection data indicates a program for shifting the managed server into the specified operation status. The computer determines, on the basis of the status management data and the status-program connection data, a program to be executed during the network boot to shift the managed server into the specified operation status. The computer notifies the managed server of information necessary for loading the determined program. | 01-12-2012 |
20130042120 | CONTROL APPARATUS AND METHOD - A disclosed control apparatus includes: a first data storage unit storing data representing whether transition to an energy-saving state is prohibited, for each of memory blocks in a memory device, wherein power control is carried out for each of the memory blocks; a second data storage unit storing the number of times that access to a memory block that is in the energy-saving state is requested, for each of threads of a program; and a first controller that increments the number of times of a requesting source thread of a memory request, upon detecting a memory block including an access destination of the memory request received from a processing unit is in the energy-saving state, and sets data representing the transition to the energy-saving state is prohibited for the memory block including the access destination of the memory request upon detecting the number of times after incrementing exceeds a threshold. | 02-14-2013 |
20130046943 | STORAGE CONTROL SYSTEM AND METHOD, AND REPLACING SYSTEM AND METHOD - A row buffer | 02-21-2013 |
20140047125 | APPARATUS AND METHOD FOR CONTROLLING VIRTUAL SWITCHES - An apparatus includes a controller, a converter, and table information storing physical identification information identifying a physical port of first and second physical switches in association with virtual identification information identifying a virtual port of a virtual switch. For each virtual switch, the controller outputs control information determined based on a predetermined protocol and manages the received control information. The converter, based on the table information, converts the physical identification information added to the received control information and identifying a physical port via which the first physical switch has received the control information, into the associated virtual identification information, converts the virtual identification information added to the control information outputted from the controller and identifying a virtual port via which the control information is to be transmitted, into the associated physical identification information, and relays the control information between the controller and the second physical switch. | 02-13-2014 |
20140169379 | RELAY APPARATUS AND CONTROL METHOD THEREOF - A disclosed relay apparatus includes: a generator that generates, upon receipt of a first packet that includes a first identifier of a virtual machine that is newly executed in an information processing apparatus connected to the relay apparatus from the information processing apparatus, a second packet that includes a second identifier of the virtual machine, which is different from the first identifier, and requests to set relay for the virtual machine; and a processing unit that sets the relay for the virtual machine by using the second identifier of the virtual machine, which is included in the second packet generated by the generator or received from the information processing apparatus. | 06-19-2014 |
Patent application number | Description | Published |
20100253989 | MIRROR DEVICE DRIVE CONTROL APPARATUS AND PROJECTOR - A mirror device drive control apparatus adapted to perform drive control of a mirror device having a hysteresis characteristic, includes: a drive section adapted to drive the mirror device with a drive signal; a detection section adapted to detect a displacement of a movable section of the mirror device, and to generate and then output a detection signal corresponding to the detection; a control section adapted to perform control of a frequency of the drive signal so that the movable section is displaced in a predetermined range; and an abnormality detection section adapted to detect abnormal vibration of the movable section during the control by the control section, wherein the abnormality detection section detects, in response to change in frequency of the drive signal, a frequency of an envelope included in the abnormal vibration of the movable section as a beat frequency based on a detection signal of the detection section, and obtains a frequency of the drive signal for performing a restoration process of driving of the mirror device based on the frequency of the drive signal changed and the beat frequency. | 10-07-2010 |
20100253990 | MIRROR DEVICE DRIVE CONTROL APPARATUS AND PROJECTOR - A mirror device drive control apparatus adapted to perform drive control of a mirror device having a hysteresis characteristic, includes: a drive section adapted to drive the mirror device with a drive signal; a detection section adapted to detect a displacement of a movable section of the mirror device, and to generate and then output a detection signal corresponding to the detection; and a start-up processing section adapted to perform a start-up process of the mirror device, wherein the start-up processing section detects a frequency of an envelope included in abnormal vibration of the movable section as a beat frequency fb based on the detection signal of the detection section, obtains a predetermined frequency f | 10-07-2010 |
20110116054 | OPTICAL SCANNING PROJECTOR - An optical scanning projector includes: a raster scanning unit that draws an image in a drawing area on a display surface by scanning beams in a first direction on the display surface while scanning beams in a second direction on the display surface that is orthogonal to the first direction; and a vector scanning unit that draws an image by irradiating beams so as to sequentially form segments each connecting two different points positioned on the display surface. | 05-19-2011 |
20110255139 | MIRROR DEVICE DRIVE CONTROL APPARATUS AND PROJECTOR - A mirror device drive control apparatus adapted to perform drive control of a mirror device having a hysteresis characteristic. | 10-20-2011 |
20120257262 | LIGHT SCANNING DEVICE AND IMAGE FORMATION APPARATUS - A light scanning device includes: a movable section which has a light reflection section reflecting light and oscillates around an oscillating axis and in which a maximum deflection angle thereof is variable; and a detection section which detects the maximum deflection angle of the movable section, wherein the detection section includes a light source which irradiates light toward the light reflection section, a light-receiving section which receives reflected light of the light from the light source, reflected by the light reflection section, and a displacement drive section which changes a position of the light-receiving section in accordance with the maximum deflection angle of the movable section. | 10-11-2012 |
20120287481 | LIGHT SCANNING DEVICE AND IMAGE FORMING DEVICE - A light scanning device includes a movable section having a light reflecting section adapted to reflect light, oscillating around an oscillation axis, and having a variable magnitude of a maximum deflection angle of the oscillating, and a detection section adapted to detect the maximum deflection angle of the movable section, and the detection section includes a light source adapted to emit light to the light reflecting section, a light receiving section adapted to receive reflected light, which is the light emitted from the light source and then reflected by the light reflecting section, and a displacement driving section adapted to change a position of the light source in accordance with the maximum deflection angle of the movable section. | 11-15-2012 |
20140268266 | OPTICAL SCANNER, IMAGE DISPLAY APPARATUS, AND HEAD MOUNTED DISPLAY - An optical scanner includes a movable section, a frame body section, a first shaft section configured to connect the movable section and the frame body section, a fixed section, a second shaft section configured to connect the frame body section and the fixed section, a first distortion detecting element and a second distortion detecting element arranged at an end on the frame body section side of the second shaft section or in any one of the movable section, the frame body section, and the first shaft section, a first signal processing section configured to receive a detection signal of the first distortion detecting element and output a signal based on bending deformation of the second shaft section, and a second signal processing section configured to receive a detection signal of the second distortion detecting element and output a signal based on torsional deformation of the second shaft section. | 09-18-2014 |
20140268267 | OPTICAL SCANNER, ACTUATOR, IMAGE DISPLAY DEVICE, AND HEAD-MOUNTED DISPLAY - An optical scanner includes: a movable portion that is provided with a light reflection portion and is swingable around a first axis; a frame body portion that is swingable around a second axis; a first shaft portion that connects the movable portion and the frame body portion; a fixed portion; a second shaft portion that connects the frame body portion and the fixed portion; a strain detection element that is disposed in the second shaft portion to detect deformation of the second shaft portion; a first signal processing portion to which a detection signal of the strain detection element is input and that outputs a signal based on bending deformation of the second shaft portion; and a second signal processing portion to which a detection signal of the strain detection element is input and that outputs a signal based on torsional deformation of the second shaft portion. | 09-18-2014 |
20140268270 | OPTICAL SCANNER, ACTUATOR, IMAGE DISPLAY DEVICE, AND HEAD-MOUNTED DISPLAY - An optical scanner includes: a movable member having a light reflection portion and being configured to swing around a first axis; a frame body configured to swing around a second axis intersecting the first axis; a first shaft connecting the movable member and the frame body; a fixing member; a second shaft connecting the frame body and the fixing member; a first strain detection element disposed at the second shaft and detecting deformation of the second shaft; and a first signal processing unit to which a detection signal of the first strain detection element is input and which outputs a signal based on bending deformation of the second shaft. | 09-18-2014 |
Patent application number | Description | Published |
20080271724 | IGNITION COIL APPARATUS FOR INTERNAL COMBUSTION ENGINE - An ignition coil apparatus for an internal combustion engine can be produced at low cost with a simple structure, and can be inserted into a bent plug hole without impairing insertability thereof. The apparatus is provided with a high voltage tower ( | 11-06-2008 |
20090084369 | IGNITION COIL APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - An ignition coil apparatus for an internal combustion engine with a cylinder having first and second spark plugs can reliably detect an ionic current without discharging a bias voltage even at the start of supplying a primary current. The apparatus includes a coil member with primary and secondary coils. The secondary coil has first and second ends connected to the spark plugs through high voltage output terminals, respectively. A first diode has its anode connected to a capacitor, and its cathode connected between the first end of the secondary coil, at which a high positive voltage is generated upon interruption of the primary current, and a high voltage output terminal at a secondary coil first end side. A second diode has its anode connected to the secondary coil first end, and its cathode connected to a junction between the first diode and the high voltage output terminal. | 04-02-2009 |
20090314239 | IGNITION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE - An ignition apparatus for an internal combustion engine is small in size and has high reliability capable of withstanding or enduring a vibration environment of a vehicle to which the ignition apparatus is installed. The ignition apparatus includes a spark plug that has its tip end portion presented in the interior of a cylinder of an internal combustion engine main body, a high voltage generation power supply that serves to apply a high voltage to the spark plug, a microwave oscillation device that has an amplifying element for generating a microwave, and a microwave antenna that is mounted on the spark plug, irradiates the micro wave generated from the microwave oscillation device to the interior of the cylinder, thereby forming a plasma generation region around discharge electrodes of the spark plug. The microwave oscillation device is made into a solid state. | 12-24-2009 |
20120103313 | IGNITION COIL FOR INTERNAL COMBUSTION ENGINE - An ignition coil for internal combustion engine includes: a center core disposed on an inner side of a primary coil and a secondary coil and a side core disposed on an outer side of the primary and secondary coils whose one end face abuts on one end face of the center core and the other end face abuts on the other end face of the center core via a magnet. The side core is formed of a plurality of side core portions obtained by dividing laminated magnetic steel plates at different positions in a longitudinal direction thereof and has a superimposed portion in which the magnetic steel plates of the adjacent side core portions mutually superimpose between the different positions in the longitudinal direction. It thus becomes possible to provide an ignition coil for internal combustion engine capable of suppressing an increase of magnetic circuit resistance markedly without deteriorating assembly workability. | 05-03-2012 |
20120222660 | INTERNAL COMBUSTION ENGINE IGNITION COIL DEVICE - An internal combustion engine ignition coil device according to the present invention is provided with a primary coil to which a primary current is applied; a secondary coil that is magnetically coupled with the primary coil and generates an ignition voltage when the primary current is cut off, so as to produce a spark discharge between a pair of electrodes of an ignition plug; a noise suppression element that is electrically connected between the secondary coil and one of the pair of electrodes of the ignition plug; and a case that is made of an insulating material and has a noise suppression element containing unit for containing the noise suppression element. The internal combustion engine ignition coil device is characterized by including ribs that are disposed in the noise suppression element containing unit and are arranged in such a way as to face the outer circumferential surface of the noise suppression element and a resin insulating material that is filled into the noise suppression element containing unit and makes contact with the ribs and the noise suppression element. | 09-06-2012 |
Patent application number | Description | Published |
20090026768 | Faucet generator - A faucet generator includes: a cylindrical body which has a water inflow port and a water outflow port, and in which a water supply channel is formed; a rotor vane which has rotor vane blades, and which is disposed in the water supply channel; a magnet which is rotatable integrally with the rotor vane; a coil in which an electromotive force is produced by rotation of the magnet; and a plurality of nozzles which eject water toward the rotor vane blades. The axial direction of the rotor vane is substantially parallel to the water supply channel. The nozzles change a direction of a water flow which is substantially parallel to the axial direction of the rotor vane, to eject water from a radially outward direction of the rotor vane blades to the rotor vane blades. | 01-29-2009 |
20090026769 | Faucet generator - A faucet generator includes; a rotor vane which is disposed in a water supply channel; an annular magnet which is rotatable integrally with the rotor vane; and a stator having: a coil which is disposed to be opposed to an end face of the magnet that is substantially perpendicular to a radial direction; a plurality of inductors which are placed separately from one another along a circumferential direction between the end face of the magnet and the coil; and a yoke which is disposed to be continuously contacted with the inductor and surround the coil. The axial direction of the rotor vane is substantially parallel to the water supply channel. In the annular magnet, the end faces which are substantially perpendicular to a radial direction are alternately magnetized with N and S poles along the circumferential direction of the magnet. In the yoke, cutaway portions which are formed by cutting away portions that are opposed to the circumferential face portion of the coil, and that are in the vicinity of the tip ends of the inductors, in one end that is on the side where said inductors are disposed, whereby portions of the yoke which are in the vicinity of the tip ends of the inductors are formed so as to relatively recede from the magnetic inducible area of the magnet. | 01-29-2009 |
20090146431 | FAUCET GENERATOR - A faucet generator includes a case having water inflow and outflow ports and in which a water supply channel is formed, a rotor vane disposed inside the water supply channel, a magnet which is rotatable integrally with the rotor vane, a bearing which supports a force that the rotor vane receives from a water flow, a coil which produces an electromotive force by a rotation of the magnet, and a yoke having a base part surrounding the coil and a plurality of inductors spaced apart from each other and extending from the base part. The coil is spaced apart from the magnet in an axial direction of a rotation center axis of the magnet and is disposed to face the magnet, the magnet is magnetized on an outer circumferential face which intersects with a plane perpendicular to the rotation center axis, and the inductors are disposed outside the case to face the outer circumferential face of the magnet. | 06-11-2009 |
20090188995 | FAUCET APPARATUS - A faucet apparatus includes: a rotatable rotor vane which is disposed in a water supply channel, and in which an axial direction is substantially parallel to the water supply channel; a magnet which is rotatable integrally with the rotor vane; a coil which is disposed to be opposed to one end face in an axial direction of the magnet; and a controller which is disposed on a side of the one end face of the magnet and above the water supply channel, and which is connected to the coil through wiring. | 07-30-2009 |