Patent application number | Description | Published |
20090022053 | EXCESSIVE FLOW DETECTION DEVICE, EXCESSIVE FLOW DETECTION CIRCUIT, TERMINAL APPARATUS AND NETWORK NODE - A packet information extraction circuit derives predetermined key information (for example, destination information or transmission source information) from a received packet. A HASH result computation circuit generates m (a plurality of) pseudo-random numbers (HASH results) of fixed length from the derived information. A cache table holds the key information and cumulative packet lengths within a predetermined time period by using the generated pseudo-random numbers as addresses. When a threshold value holding and comparing circuit senses that the cumulative packet length has exceeded a value held therein, it sends a notification signal to judgment means disposed in a packet exchange system. The key information items and the cumulative values of the packet lengths are stored in the cache table on the basis of the received packets in such a way that larger cumulative packet lengths are left behind, whereas smaller cumulative packet lengths are erased. | 01-22-2009 |
20090232000 | NETWORK CONTROLLER AND CONTROL METHOD WITH FLOW ANALYSIS AND CONTROL FUNCTION (As Amended) - A network controller, capable of high-speed extraction of malicious traffic from networks and determining characteristics of such traffic, includes a unit for accumulating a number of packets for each arbitrary itemset included in the header portions of packets to be transferred, and a unit for determining whether the accumulated value obtained by the accumulating unit exceeds a predetermined threshold, and determines the types of packets to be transferred from accumulated values of the itemset and an itemset different from the itemset when the number of packets exceed a threshold. | 09-17-2009 |
20100034109 | COMMUNICATION DATA STATISTICAL APPARATUS, COMMUNICATION DATA STATISTICAL METHOD, AND COMPUTER PROGRAM PRODUCT - An apparatus comprises a receiver module configured to receive packets including multiple different identifiers, an aggregation module configured to classify each packet, which is received by the receiver module into a certain aggregate flow and generate aggregate statistical information including number of packets belonging to the certain aggregate flow, and a statistical processing module configured to perform an updating process arranged to classify the certain aggregate flow into a specific statistical flow and to update statistical information including number of packets belonging to the specific statistical flow based on corresponding aggregate statistical information, the statistical processing module repeating the updating process for multiple aggregate flows, into which packets are classified by the aggregation module, so as to update the statistical information in each of the multiple different statistical conditions. | 02-11-2010 |
20130269031 | NETWORK SYSTEM, NETWORK RELAY METHOD, AND NETWORK RELAY DEVICE - A history management unit within a discard determination unit manages transmission and reception packets related to a resource to be protected for each of users, and records communication history information for users high in use frequency through stateful measurement. A priority determination unit determines the priority of a communication on a per received packet basis on the basis of communication history information. A load determination unit determines a load level of the resource to be protected, and combines the load level with the priority of the communication determined on the per received packet basis. A discard rate determination unit and a packet discard unit implement forwarding processing, determine the priority of the communication on the per user basis, and discard communications low in the priority at a high ratio. | 10-10-2013 |
Patent application number | Description | Published |
20080224382 | SHEET FEEDING DEVICE AND RECORDING APPARATUS - A sheet material feeding apparatus includes a sheet stacking portion for stacking recording sheets; a feeding roller for feeding the recording sheets from the sheet stacking portion; separating means for separating the recording sheet fed out by the feeding roller; a holder for holding the separating means, the holder being rotatably supported on a main assembly of the apparatus; first urging means for urging the holder toward the feeding roller; a preliminary regulating member, rotatably supported on the holder, for regulating a gap relative to the feeding roller; second urging means for urging the preliminary regulating member toward the feeding roller; a first regulating member, supported by the holder, for regulating rotation of the preliminary regulating member relative to the holder; and a second regulating member, provided in the main assembly of apparatus, for regulating rotation of the preliminary regulating member relative to the main assembly of the apparatus. | 09-18-2008 |
20090243195 | SHEET FEEDING DEVICE AND RECORDING APPARATUS - A sheet material feeding apparatus includes a sheet stacking portion for stacking recording sheets; a feeding roller for feeding the recording sheets from the sheet stacking portion; separating means for separating the recording sheet fed out by the feeding roller; a holder for holding the separating means, the holder being rotatably supported on a main assembly of the apparatus; first urging means for urging the holder toward the feeding roller; a preliminary regulating member, rotatably supported on the holder, for regulating a gap relative to the feeding roller; second urging means for urging the preliminary regulating member toward the feeding roller; a first regulating member, supported by the holder, for regulating rotation of the preliminary regulating member relative to the holder; and a second regulating member, provided in the main assembly of apparatus, for regulating rotation of the preliminary regulating member relative to the main assembly of the apparatus. | 10-01-2009 |
Patent application number | Description | Published |
20090030601 | Navigation apparatus - A navigation apparatus for a vehicle displays, based on map information, a map image for vicinity of a present position of the vehicle and a guidance route in superimposition in a display device. An end point relative to a moving arrow is defined as being a predetermined first distance ahead of the present position along the route; a start point is defined as being a predetermined second distance smaller than the first distance ahead of the present position along the route. The navigation apparatus is further configured to superimpose, on the displayed route, the moving arrow which includes an arrowhead and a line between the arrowhead and the present position, such that the arrowhead moves from the start point to the end point along the route when a distance to a nearest guidance point is smaller than a predetermined distance. | 01-29-2009 |
20090073327 | On-vehicle display apparatus - A display apparatus for a vehicle includes a liquid crystal panel, a backlight unit, and a control circuit. The liquid crystal panel has a screen constructed with pixels. A first portion of the pixels displays a speed image indicating a vehicle speed. A second portion of the pixels displays a warning image indicating a vehicle abnormal condition. The control circuit adjusts brightness of the screen by controlling intensity of colors in the speed and warning images in such a manner that brightness of the warning image is greater than brightness of the speed image. The luminance of the light supplied to the screen by the backlight unit is kept constant. | 03-19-2009 |
20090144489 | ELECTRONIC DEVICE AND PROGRAM FOR OPERATING THE SAME - A navigation device realizes such processing as map display and route guidance based on map data stored in a memory card. The data in the memory card tends to be volatilized with an increase in the frequency of reading of data. Therefore, the data that are highly frequently read out are held in a RAM so as to be read from the memory card at a decreased frequency. Further, the passage of time is calculated from the date and hour the data are recorded in the memory card, and the whole data in the memory card are refreshed every time when the passage of time exceeds a threshold value T | 06-04-2009 |
Patent application number | Description | Published |
20120215414 | BRAKE CONTROL DEVICE - Included are pressure increasing valves and pressure reducing valves as flow control valves, placed between a brake fluid pressure generation unit on an upstream side that generates brake fluid pressure and a braking force generation unit on a downstream side that generates braking force in accordance with the brake fluid pressure to a wheel, that regulates the brake fluid pressure to the braking force generation unit by controlling the flow rate of brake fluid, and an electronic control unit is provided with: a differential pressure obtaining unit that obtains information on the difference of brake fluid pressure from the brake fluid pressure on upstream and downstream sides of the flow control valve; a hydrodynamic force obtaining unit that obtains information on hydrodynamic force induced in a valve element by the flow of brake fluid passing through the flow control valve; and a brake fluid pressure control unit that controls the flow control valve by use of the information on the differential pressure and the information on the hydrodynamic force. | 08-23-2012 |
20130144500 | BRAKING FORCE DISTRIBUTION CONTROL DEVICE FOR A VEHICLE - Disclosed is a braking force distribution control device for a vehicle which has a braking apparatus capable of individually controlling braking forces of the wheels as required. Front or rear wheels having higher braking force sharing rate being referred to control reference wheels and the front or rear wheels having lower braking force sharing rate are referred to control object wheels. A difference value between braking slip index values of the left and right wheels of said control object wheels is referred to a reference difference value. A braking force distribution control is executed on the control object wheels so that the magnitude relationship in wheel speeds of the left and right wheels of the control object wheels is converse to that of the left and right wheels of the control reference wheels. | 06-06-2013 |
20130204491 | VEHICLE BRAKING DEVICE AND CONTROL DEVICE - Provided is a vehicle braking device for applying a braking force on tires arranged on a vehicle body rotatably, the vehicle braking device including a fluid pressure braking unit configured to act the braking force on the tires; a master cylinder configured to supply fluid pressure to the fluid pressure braking unit; a pressure detection sensor configured to detect pressure of the fluid pressure supplied from the master cylinder to the fluid pressure braking unit; and a control device that includes a storage unit configured to store detected driving conditions, a braking operation determining unit configured to determine state of the braking operation based on the fluid pressure detected by the pressure detection sensor, and a control unit configured to control operation based on the determination result of the braking operation determining unit. | 08-08-2013 |
20130204503 | BRAKING FORCE CONTROL APPARATUS AND BRAKING FORCE CONTROL METHOD FOR VEHICLE - A vehicle braking force control apparatus includes a controller that performs a front-rear braking force distribution control in which the braking forces applied to the left and right rear wheels are controlled individually so that a wheel speed of each of the rear wheels is equal to a target wheel speed of the rear wheel, which is set based on a predetermined relationship between the wheel speed of the front wheel and the target rear wheel speed of the rear wheel, and that corrects the target wheel speed of at least one of the left and right rear wheels, based on a parameter related to a change rate of load shift amount in a vehicle transverse direction, so that the target wheel speed of the rear wheel on a ground contact load increase side is less than the target wheel speed of the rear wheel on a ground contact load decrease side. | 08-08-2013 |
20130211668 | VEHICLE BRAKING DEVICE AND CONTROL DEVICE - A vehicle braking device including a braking operation judging unit that judges that a braking operation is input when a fluid pressure detected by a pressure detecting sensor is not smaller than a threshold value set in advance in a process of a first mode in which it is judged that the device normally operates, and judges that the braking operation is input when judging that wheel deceleration of a tire detected by a wheel speed detecting sensor is larger than a threshold value in a process of a second mode in which it is judged the pressure detecting sensor does not normally detect a pressure or it is judged that a failure occurs in the fluid pressure, and a control unit puts a brake lamp arranged on a vehicle body into a lighting state from a non-lighting state when it is judged that the braking operation is input. | 08-15-2013 |
20130231840 | BRAKING FORCE CONTROL DEVICE FOR VEHICLE AND BRAKING FORCE CONTROL METHOD FOR VEHICLE - A braking force control device for a vehicle that performs front and rear wheel distribution control of braking force by controlling individually braking pressures of left and right rear wheels such that, during braking, a wheel speed of a rear wheel takes on a value lying within a target control range that satisfies a predefined relationship with respect to a wheel speed of a front wheel. When a wheel speed of a second rear wheel takes on a value lying outside the target control range, in a situation where a wheel speed of a first rear wheel is a value lying within the target control range and lying outside a sub-target control range that is narrower than the target control range, then braking pressures of the left and right rear wheels are controlled simultaneously in such a manner that the wheel speed of the second rear wheel takes on a value lying within the target control range and the wheel speed of the first rear wheel approaches the sub-target control range. | 09-05-2013 |
20130245910 | BRAKE FORCE CONTROL APPARATUS FOR VEHICLE AND BRAKE FORCE CONTROL METHOD FOR VEHICLE - A brake force control apparatus includes a diagonal two-system brake device and performs front-rear wheel distribution control of brake force by individually controlling the brake pressure of the left and right rear wheels so as to obtain a target relationship between a wheel speed of the left and right rear wheels and the front wheels during braking. It is determined whether or not a difference in wheel speed between one wheel of one system and one wheel of the other system or a difference in wheel speed between the other wheel of the one system and the other wheel of the other system exceeds a threshold. When the threshold is exceeded, the reduction of brake pressure by the front-rear wheel distribution control of brake force is not performed with respect to a rear wheel with a lower wheel speed from among the left and right rear wheels. | 09-19-2013 |
20130325253 | VEHICLE BRAKE DEVICE - In a vehicle brake device having a hydraulic pressure sensor for detecting an output value corresponding to the pressure of a fluid pressure adjusted by a master cylinder and a master cylinder pressure calculating unit for storing the output value of the hydraulic pressure sensor at which the pressure of the master cylinder becomes 0 as a zero-point correction value and calculating a master cylinder pressure by correcting the output value of the hydraulic pressure sensor based on the zero-point correction value, the vehicle brake device has a zero-point correction value updating unit for setting, when the output value detected by the hydraulic pressure sensor is smaller than the zero-point correction value stored in the master cylinder pressure calculating unit, the output value as a new zero-point correction value and updating the zero-point correction value. | 12-05-2013 |
20140244128 | VEHICLE BRAKING CONTROL DEVICE - A vehicle braking control device includes a braking force simultaneous control mode executing unit capable of executing a braking force simultaneous control mode for simultaneously controlling right/left wheels cylinders by a brake hydraulic pressure circuit according to slip ratios of right/left wheels, a braking force independent control mode executing unit capable of executing a braking force independent control mode for independently controlling the right/left wheels cylinders, and a switching controller capable of switching the braking force simultaneous control mode and the braking force independent control mode, wherein the switching controller switches to the braking force independent control mode at the time a slip ratio difference of the right/left rear wheels becomes equal to or less than a preset and predetermined value during switching from the braking force simultaneous control mode to the braking force independent control mode. | 08-28-2014 |
20140330501 | BRAKING FORCE CONTROL SYSTEM AND BRAKING FORCE CONTROL METHOD - A braking device and a controller are provided. The braking device individually adjusts braking forces that are respectively generated at wheels of a vehicle. The controller executes braking force distribution control for individually controlling the braking forces at the right and left wheels of the vehicle such that slip conditions of the right and left wheels are equal to each other through control of the braking device. The controller executes the braking force distribution control on the basis of an upper limit of a right and left braking force deviation that is a deviation in braking force between the right and left wheels. | 11-06-2014 |
20150073678 | BRAKING FORCE CONTROL DEVICE - A braking force control device includes a braking device capable of individually adjusting braking force generated at each wheel of a vehicle; and a control device capable of executing braking force distribution control to individually control the braking force of each of right and left wheels such that slip states of the right and left wheels of the vehicle become equivalent by controlling the braking device. The control device executes the braking force distribution control based on a change rate upper limit of a change rate of lateral braking force deviation which is deviation of the braking force of the right and left wheels, so that there is an effect that behavior of the vehicle can be stabilized. | 03-12-2015 |
Patent application number | Description | Published |
20120225657 | RADIO COMMUNICATION SYSTEM, NEIGHBOR CELL LIST OPTIMIZING SYSTEM, BASE STATION, AND NEIGHBOR CELL LIST UPDATING METHOD - A neighbor cell list optimizing system according to the present invention is a neighbor cell list optimizing system that updates a neighbor cell list that is provided in a base station that manages a cell to which a mobile terminal establishes a connection and to which specific neighbor cells that are candidates of a handover destination cell for said mobile terminal of neighbor cells that are in the vicinity of said cell are registered, comprising: priority computation section that computes priorities of said neighbor cells to be registered to said neighbor cell list based on measurement information that represents radio communication qualities of neighbor cells in which the measured radio communication qualities exceed a threshold; and neighbor cell list updating section that registers neighbor cells in descending order of the priorities up to an upper limit of radio cells that can be registered to said neighbor cell list. | 09-06-2012 |
20120252440 | RADIO COMMUNICATION SYSTEM, SELF-OPTIMIZING SYSTEM, RADIO BASE STATION, AND RADIO PARAMETER SETTING METHOD - The present invention provides a self-optimizing system for setting a radio parameter on a radio base station that manages a cell, including an update value calculation section that calculates an update value of a determining factor of the radio parameter based on traffic statistics information and on radio channel quality information that indicates radio channel quality of the cell and of a specific neighbor cell of the neighbor cells, a reliability evaluation section that evaluates reliability of the calculated update value of the determining factor, an update determination section that determines whether or not to apply the update value of the factor to the radio base station, and a radio parameter updating section that sets the radio parameter determined by the update value of the factor on the radio base station when the update value of the factor is determined to be applied to the radio base station. | 10-04-2012 |
20130079005 | WIRELESS COMMUNICATION SYSTEM, NEIGHBOR CELL LIST OPTIMIZING SYSTEM, BASE STATION, NEIGHBOR CELL LIST UPDATING METHOD, AND PROGRAM - A first mobile terminal group has a first measurement information transmitting means which measures radio quality of a second cell, and transmits measurement information to a first base station, a second mobile terminal group has a second measurement information transmitting means which measures radio quality of a first cell, and transmits measurement information to a second base station, and a neighbor cell list optimizing system has: a measurement information collecting means which collects the measurement information of the first and second cells; a reliability evaluating means which performs processing of evaluating reliability of the measurement information of the second cell; a priority calculating means which, when the reliability is a predetermined threshold or less, calculates a priority for registering the second cell in the neighbor cell list of the first cell based on the measurement information of the first cell; and a neighbor cell list updating means which performs control of determining a neighbor cell to be registered based on the priority, and updating the neighbor cell list. | 03-28-2013 |