Patent application number | Description | Published |
20100325338 | DATA TRANSMISSION CONTROL DEVICE AND DATA TRANSMISSION CONTROL METHOD - First and second modules output a predetermined volume of data at a certain rate around the same time. A setting is made so that transfer addresses from the second module are shifted relative to transfer addresses from the first module such that a bank to which the first module issues a data transfer request is in a position separate from a bank to which the second module issues a data transfer request. | 12-23-2010 |
20100325375 | DATA-ACCESS CONTROL DEVICE AND DATA-ACCESS CONTROL METHOD - A memory control unit sequentially performs access requests to a plurality of banks A to D for a high-speed module | 12-23-2010 |
20120320174 | ELECTRONIC ENDOSCOPIC APPARATUS - A CMOS sensor converts optical information into an electric signal, and outputs the converted electric signal as an image signal. An imaging clock generating unit generates an imaging clock acting as a source of a drive signal that drives the CMOS sensor. A drive signal generating unit generates an imaging synchronization signal and a drive signal based on the imaging clock. A display clock generating unit generates a display clock. A display synchronization signal generating unit generates a display synchronization signal based on the display clock. A phase comparing unit compares a phase of the imaging synchronization signal with a phase of the display clock, and controls oscillation of the display clock generating unit based on a result of the comparison. | 12-20-2012 |
20120320175 | ELECTRONIC ENDOSCOPIC APPARATUS - A phase control unit compares a phase of a display synchronization signal with a phase of a clock signal generated from a clock signal generated by an imaging clock generating unit, and controls oscillation of the imaging clock generating unit based on a result of the comparison. A drive signal generating unit generates a drive signal that drives a CMOS sensor based on a multiplication clock signal synchronized to the clock signal. | 12-20-2012 |
20120320176 | ELECTRONIC ENDOSCOPE APPARATUS - The image processor includes a display oscillation circuit that generates a display clock, and a monitor synchronization signal generating part that generates a monitor display synchronization signal based on the display clock. The endoscope includes an imaging oscillation circuit that generates an imaging clock, pixels that are driven based on the imaging clock, converts optical information into electrical signals and outputs the electrical signals as a digital data of a serial form, and a phase comparator that compare the phase of the monitor display synchronization signal with the imaging clock, and control the oscillation of the imaging oscillation circuit. | 12-20-2012 |
20120320177 | ELECTRONIC ENDOSCOPE APPARATUS - A phase comparing unit compares a phase of an imaging-side synchronization signal with a phase of a display-side clock, and controls oscillation of a display-side clock generating unit based on a result of the comparison. A display timing adjusting unit receives a video signal output from an endoscope at a timing based on the imaging-side synchronization signal and adjusts a synchronization timing of the received video signal to a synchronization timing based on a display-side synchronization signal. | 12-20-2012 |
20120323073 | ELECTRONIC ENDOSCOPIC APPARATUS - An imaging device is installed on a scope distal portion, and captures an image based on an imaging clock. An image processor portion performs image processing on the image captured by the imaging device, and displays the corresponding image based on a display clock on a monitor. A scope cable portion transmits data between the scope distal portion and the image processor portion. A clock oscillator generates a master clock. A first multiplying/dividing circuit multiplies and/or divides the master clock by (natural number/natural number), and generates a transmission clock whose frequency is lower than that of the imaging clock and is (natural number) times the frequency of a vertical synchronization signal. | 12-20-2012 |
20130016199 | ELECTRONIC ENDSCOPIC APPARATUSAANM Kobayashi; NaruyasuAACI Kawasaki-shiAACO JPAAGP Kobayashi; Naruyasu Kawasaki-shi JPAANM Kotoda; KaoruAACI TokyoAACO JPAAGP Kotoda; Kaoru Tokyo JPAANM Nishimura; HisashiAACI TokyoAACO JPAAGP Nishimura; Hisashi Tokyo JPAANM Azuma; MotooAACI Tokorozawa-shiAACO JPAAGP Azuma; Motoo Tokorozawa-shi JPAANM Takizawa; KazuhiroAACI TokyoAACO JPAAGP Takizawa; Kazuhiro Tokyo JPAANM Sato; TakayukiAACI TokyoAACO JPAAGP Sato; Takayuki Tokyo JPAANM Tanaka; SatoshiAACI TokyoAACO JPAAGP Tanaka; Satoshi Tokyo JP - An electronic endoscopic apparatus includes an endoscopic scope and an image processing processor. The endoscopic scope includes a slid-state imaging device, an imaging-side multiplying unit, and an imaging synchronization signal generating unit. The image processing processor includes a display clock generating unit, a monitor synchronization signal generating unit, a master imaging clock generating unit, a processor-side multiplying/dividing unit, a phase-comparison oscillation control unit, and a display timing adjustment unit. | 01-17-2013 |
20140371533 | ENDOSCOPE DEVICE AND ENDOSCOPE SYSTEM - The present invention is capable of setting a program corresponding to each programmable device for the programmable devices. This endoscope device and endoscope system are provided with: programmable devices performing processing in accordance with programs; and a rewrite control unit which transmits unique information which is specific to the programmable devices to an external storage device retaining the programs, receives the program corresponding to the unique information from the external storage device, and sets the received programs to the programmable devices. | 12-18-2014 |
Patent application number | Description | Published |
20090278909 | APPARATUS AND METHOD FOR SIDE DETERMINATION OF OPTICAL DISC - A side determination apparatus of an optical disc includes a light source illuminating one side of the optical disc having a data side and a non-data side obliquely; a sensor receiving a reflected light from the optical disc illuminated by the light source; and a determination unit determining that an incident light into the sensor is a reflected diffracted light from the data side of the optical disc based on a distribution of an output of the sensor onto a surface of the disc to determine the one side. | 11-12-2009 |
20110031923 | APPARATUS EQUIPPED WITH MOTOR AND DRIVING METHOD FOR THE MOTOR - An apparatus including a DC motor includes a driven member configured to be driven by the DC motor, and a drive control unit configured to define a plurality of predetermined phases of the DC motor as target stop phases and to cause the DC motor to make at least one rotation to perform preliminary driving that rotates the DC motor to each target stop phase by driving and stopping the DC motor, configured to acquire a difference value between the target stop phase and an actual stop phase for each target stop phase, and configured to drive the DC motor so that the driven member is repeatedly moved and stopped in the operation of the driven member and to perform control so that, based on the difference value acquired by the acquisition unit, electric power is supplied to the DC motor in a phase corresponding to a stop position of the driven member. | 02-10-2011 |
20110032583 | APPARATUS AND METHOD FOR CONTROLLING THE APPARATUS - An apparatus for moving a unit to execute scanning includes a scanning unit including a motor, an encoder for outputting a signal according to movement of the unit, a detection unit for detecting a current supplied to the motor, a speed control unit for executing a speed control of the motor according to the signal output from the encoder and the current detected by the detection unit, a movement control unit for setting a threshold value, moving the unit by driving the motor, by using the speed control unit, and a current control unit for setting a value greater than the predetermined value according to the threshold value and value of the current detected by the detection unit at a predetermined timing during a time period while the unit is moving. | 02-10-2011 |
20140036321 | APPARATUS AND METHOD FOR CONTROLLING THE APPARATUS - An apparatus for moving a unit to execute scanning includes a scanning unit including a motor, an encoder for outputting a signal according to movement of the unit, a detection unit for detecting a current supplied to the motor, a speed control unit for executing a speed control of the motor according to the signal output from the encoder and the current detected by the detection unit, a movement control unit for setting a threshold value, moving the unit by driving the motor, by using the speed control unit, and a current control unit for setting a value greater than the predetermined value according to the threshold value and value of the current detected by the detection unit at a predetermined timing during a time period while the unit is moving. | 02-06-2014 |
Patent application number | Description | Published |
20080270011 | Apparatus for failure diagnosis of an intake air flow sensor - An apparatus for failure diagnosis of an intake air flow sensor is provided which, when the operating state of an engine is judged to be in a low flow rate region, determines whether or not the intake air flow rate detected by the intake air flow sensor is excessively high relative to a theoretical intake air flow rate corresponding to the operating state of the engine and, if the detected intake air flow rate is excessively high, judges that the intake air flow sensor has failed. Also, when the operating state of the engine is judged to be in a high flow rate region, the apparatus for failure diagnosis determines whether or not the detected intake air flow rate is excessively low relative to the theoretical intake air flow rate and, if the detected intake air flow rate is excessively low, judges that the intake air flow sensor has failed. | 10-30-2008 |
20090145111 | PROBLEM DETECTION APPARATUS AND METHOD IN EXHAUST PURIFYING APPARATUS - An exhaust purifying apparatus is provided with a filter located in an exhaust path of an internal combustion engine and configured to collect particulates in exhaust gas. The exhaust purifying apparatus is also provided with a differential pressure sensor which detects the pressure difference generated between the upstream side and downstream side of the filter. The problem detection apparatus of the exhaust purifying apparatus is provided with a differential pressure calculation unit and a judgment unit. The differential pressure calculation unit calculates the pressure difference between the upstream and downstream sides of the filter based on the operating state of the internal combustion engine. The judgment unit calculates a difference P between an actual measurement value of the pressure difference and a calculation differential pressure value compares the difference P with a threshold value, and detects that the filter has a problem. | 06-11-2009 |
20090193904 | SENSOR ABNORMALITY DETECTION APPARATUS AND SENSOR ABNORMALITY DETECTION METHOD - A filter upstream-side pressure sensor detects the pressure on an upstream side of a filter. A filter downstream-side pressure calculating device subtracts an actual measurement value of the pressure difference between the upstream side and the downstream side of the filter from a pressure value on the upstream side of the filter. Based on this subtraction, the filter downstream-side pressure calculating device calculates a pressure value on the downstream side of the filter. A filter downstream-side pressure estimating device estimates a pressure value on the downstream side of the filter. An abnormality detection device compares the difference between the calculated pressure value and the estimated pressure value with a threshold. If the difference exceeds the threshold, it is determined that at least one of a differential pressure sensor and the filter upstream-side pressure sensor is not working normally. | 08-06-2009 |
20090254237 | Apparatus for failure diagnosis of a vehicular foot brake switch - An apparatus for failure diagnosis starts counting a frequency of a switching action of a foot brake switch when determining that vehicle speed is higher than a first criterion value, and ceases to count the frequency of the switching action when determining that the vehicle speed has decreased below a second criterion value set to be lower than the first criterion value. When the frequency of the switching action counted by a count section is less than a predetermined value, the apparatus for failure diagnosis determines that the foot brake switch has a failure. | 10-08-2009 |
20100242443 | EXHAUST AFTERTREATMENT DEVICE - When an estimated value (A value) of an accumulation amount in a filter for trapping particulate matter reaches a prescribed value A | 09-30-2010 |
Patent application number | Description | Published |
20100272445 | GAIN AND SIGNAL LEVEL ADJUSTMENTS OF CASCADED OPTICAL AMPLIFIERS - An optical amplification device which includes first and second optical amplifiers, and a controller. The first optical amplifier receives a light and amplifies the received light. The second optical amplifier receives the light amplified by the first optical amplifier, and amplifies the received light. When a level of the light received by the first optical amplifier changes by Δ, the controller controls a level of the light received by the second optical amplifier to change by approximately −Δ. In various embodiments, the controller causes the sum of the gains of the first and second optical amplifiers to be constant. In other embodiments, the optical amplification device includes first and second optical amplifier and a gain adjustor. The gain adjustor detects a deviation in gain of the first optical amplifier from a target gain, and adjusts the gain of the second optical amplifier to compensate for the detected deviation. | 10-28-2010 |
20110164309 | GAIN AND SIGNAL LEVEL ADJUSTMENTS OF CASCADED OPTICAL AMPLIFIERS - An optical amplification device which includes first and second optical amplifiers, and a controller. The first optical amplifier receives a light and amplifies the received light. The second optical amplifier receives the light amplified by the first optical amplifier, and amplifies the received light. When a level of the light received by the first optical amplifier changes by Δ, the controller controls a level of the light received by the second optical amplifier to change by approximately −Δ. In various embodiments, the controller causes the sum of the gains of the first and second optical amplifiers to be constant. In other embodiments, the optical amplification device includes first and second optical amplifier and a gain adjustor. The gain adjustor detects a deviation in gain of the first optical amplifier from a target gain, and adjusts the gain of the second optical amplifier to compensate for the detected deviation. | 07-07-2011 |
Patent application number | Description | Published |
20100206164 | GAS PURIFICATION METHOD - A gas purification method of the present invention uses a carbon membrane having a molecular sieving action to purify at least one selected from the group consisting of a hydride gas, a hydrogen halide gas, and a halogen gas, each gas containing an impurity at 10 ppm or less. The present invention can be used for a recovery unit that recoveries a used gas to reuse it as an ultrapure semiconductor material gas, and a unit or equipment that produces or charges an ultrapure semiconductor material gas. | 08-19-2010 |
20130032028 | METHOD FOR OPERATING GAS SEPARATION DEVICE - Provided are a method for operating a gas separation device capable of performing gas separation with high separation capability and treatment amount in a small membrane area or in a small number of separation membrane modules, and a method for recovering a residual gas capable of performing more suitable detoxifying treatment or recycling by efficiently separating and recovering a mixed gas remaining in a cylinder, using the operating method. Two or more separation membrane modules are connected with each other in parallel. One separation membrane module is continuously and repeatedly operated in an operation cycle including: a first process for supplying a mixed gas into an airtight container and filling the airtight container with pressure; a second process for, when a predetermined time has elapsed or a predetermined pressure has been reached, stopping the supply of the mixed gas and retaining the supplied mixed gas; a third process for, when a predetermined time has elapsed or a predetermined pressure has been reached, recovering the mixed gas from a non-permeated gas discharge port; and a fourth process for, when a predetermined time has elapsed or a predetermined pressure has been reached, closing the non-permeated gas discharge port. The other separation membrane modules are operated in operation cycles shifted by respective predetermined intervals. | 02-07-2013 |
Patent application number | Description | Published |
20120323380 | WATER DEMAND OPTIMIZATION SYSTEM, CONTROL SYSTEM AND PROGRAM - According to one embodiment, a water demand optimization system includes a management terminal, a measuring apparatus, a demand information generating unit and a water-supply control apparatus. The management terminal drives customer equipment, which performs an operation using water, in a time zone in which a power unit rate is low. The measuring apparatus measures an amount of water used in a dwelling unit. The demand information generating unit generates water demand based on the amount of water. The water-supply control apparatus controls a pump in a manner to meet water demand and to minimize a treatment cost in a water purification plant and a cost for conveyance of clear water with reference to a variation in the power unit rate. | 12-20-2012 |
20130110934 | INFORMATION INTEGRATION CONTROL SYSTEM, SOCIAL INFRASTRUCTURE OPERATION SYSTEM, OPERATION METHOD, LOCAL APPARATUS AND SERVER APPARATUS | 05-02-2013 |
20130261801 | SOCIAL INFRASTRUCTURE CONTROL SYSTEM, SERVER, CONTROL APPARATUS, CONTROL METHOD, AND MEDIUM - According to an embodiment, social infrastructure control system includes control apparatus, database, sensors, collector, calculator, selector and creator. Control apparatus controls social infrastructure of community based on software. Database stores software modules. Sensors detect events concerning social infrastructure to output event information. Collector collects event information from sensors. Calculator calculates characteristic of social infrastructure or community by analyzing the collected event information. Selector selects module corresponding to the calculated characteristic from database. Creator creates software based on selected module. | 10-03-2013 |
20130262580 | SOCIAL INFRASTRUCTURE CONTROL SYSTEM, SERVER, CONTROL METHOD, AND MEDIUM - According to one embodiment, a social infrastructure control system includes upper layer system and lower layer system. Lower layer system includes sensor, uploader and controller. Sensor detects event concerning social infrastructure and outputs event information. Uploader uploads event information to upper layer system via communication line. Controller controls social infrastructure based on control data transmitted from upper layer system or event information. Upper layer system includes processor and transmitter. Processor generates control data used to control social infrastructure based on event information. Transmitter transmits control data to controller via communication line. | 10-03-2013 |
20130310952 | SOCIAL INFRASTRUCTURE CONTROL SYSTEM, CONTROL METHOD, CONTROL APPARATUS, AND SERVER - According to one embodiment, a system includes control apparatus and server. Control apparatus includes collector, transmitter, receiver and main controller. Collector collects sensing data concerning control targets in social infrastructure. Transmitter transmits collected sensing data to server. Receiver receives control instruction from server. Main controller controls control targets based on control instruction. Server includes acquisition unit, database, generator and instructor. Acquisition unit acquires sensing data from control apparatus. Database stores sensing data. Generator generates control instruction by processing sensing data. Instructor transmits generated control instruction to control apparatus. | 11-21-2013 |
20140324223 | WATER TREATMENT CONTROL APPARATUS AND WATER TREATMENT SYSTEM - According to one embodiment, a water treatment control apparatus generates an indication to a water treatment facility referring to conditions including a drought status and a water treatment cost at the water treatment facility. The indication indicates a type of water to be taken by the water treatment facility between a plurality of types of water including river water from rivers, rainwater, and waste water used by a customer. | 10-30-2014 |
20150074111 | INFORMATION INTEGRATION CONTROL SYSTEM, SOCIAL INFRASTRUCTURE OPERATION SYSTEM, OPERATION METHOD, LOCAL APPARATUS AND SERVER APPARATUS - According to one embodiment, an information integration control system includes a collector, a storage module and a generator. The collector collects infrastructure information concerning a social infrastructure, user information about a user who uses the social infrastructure, and management information of a manager who manages the social infrastructure and the user. The storage module stores the infrastructure information, the user information, and the management information which are collected. The generator generates control information for the social infrastructure based on the infrastructure information, the user information, and the management information which are stored in the storage module. | 03-12-2015 |
Patent application number | Description | Published |
20090074260 | IMAGE PROCESSING APPARATUS - An image processing apparatus determines a specific color region that includes a specific color, and a non-specific color region around which the specific color regions are present in three directions, i.e., an upper, left, and right directions, in a picture in the non-specific color regions that are not determined as including the specific color as specific regions to be subjected to predetermined image processing. | 03-19-2009 |
20110002385 | IMAGE CODING APPARATUS, CONTROL METHOD THEREFOR AND COMPUTER PROGRAM - An image coding apparatus which divides an input picture into a plurality of macroblocks and performs a prediction encoding for each macroblock, comprising a unit for calculating flatness based on pixel values contained in a macroblock of interest and determining whether the macroblock of interest is a flat macroblock, a unit for storing determination results for each macroblock, a unit for determining, based on the determination results, whether the macroblock of interest determined to be a flat macroblock belongs to a flat area, a unit for selecting one of the inter-prediction mode and the intra-prediction mode as a prediction mode for an encoding process of the macroblock of interest based on determination results and on cost values of the inter-prediction mode and the intra-prediction mode, and a unit for performing predictive coding according to the selected prediction mode. | 01-06-2011 |
20120140827 | IMAGE CODING APPARATUS AND IMAGE CODING METHOD - In an image coding apparatus to process a frame image generated by combining a plurality of different images in the side-by-side method as a coding target image, information which specifies an image block in contact with a boundary of the plurality of images is input to the image coding apparatus. A control unit sets a predetermined coding control parameter which reduces or inhibits filtering with a deblocking filter on the image block in contact with the boundary of the plurality of images specified based on the input information. | 06-07-2012 |
20140270513 | MOVING IMAGE ENCODING APPARATUS AND METHOD FOR CONTROLLING THE SAME - A technique is provided that can record moving images while not resulting in calculation load increase and maintaining a certain degree of image quality even when encoding corresponding to a 4:4:4 format. Provisional encoding is performed, by obtaining motion vectors in accordance with a plurality of mutually different search ranges of image data of one color component, on a preset number of frame images at an initial stage at a time when an encoding start instruction is given. Moreover, the search range having the smallest error vector among each of the search ranges is determined as a search range for a motion vector, for each color component in main encoding processing carried out following provisional encoding. | 09-18-2014 |
Patent application number | Description | Published |
20090218752 | APPARATUS FOR SEPARATING AND EXTRACTING PAPER LEAVES - In an apparatus, a pile of sheets is mounted on a support base, and is brought into contact with a guide. A high-frequency vibration is applied to the sheets from a vibrating part which is pressed to the pile. A sheet on the uppermost surface of the pile is transferred by a feed roller. The guide has a guide end defining a guide entrance between the guide end and the feed roller, through which the sheets is passed. The guide end is arranged substantially in a virtual plane including a contact position at which the vibrating part is in contact with the uppermost surface of the pile, and substantially parallel with the sheets. A separation section for separating sheets from each other is arranged behind the entrance, and an air blow-off section for blowing air into the side of the pile is provided in the vicinity of the entrance. | 09-03-2009 |
20120073937 | MEDIUM CONVEYOR APPARATUS AND CONTROL METHOD - According to one embodiment, a medium convey apparatus is provided with an oscillation unit, a cooling unit, a convey unit, a temperature detector and a controller. The oscillation unit applies oscillation to a thin medium as a to-be-conveyed target. The cooling unit cools the air around the thin medium. The convey unit conveys the thin medium. The temperature detector detects the temperature around the medium. The controller controls the cooling unit based on the temperature detected by the temperature detector. | 03-29-2012 |
20120154795 | BUNDLE-STATE DETECTION APPARATUS AND SEPARATION AND EXTRACTION APPARATUS - According to one embodiment, a separation and extraction apparatus includes an extraction unit, separation unit, air supply mechanism, detector, and controller. The extraction unit extracts and conveys one or more paper sheets from a stack of paper sheets. The separation unit separates one paper sheet from the other paper sheet(s) of the one or more paper sheets. The air supply mechanism supplies air toward a side surface of the stack. The detector detects a bundle state of the stack, which is related to a contact state between the paper sheets. The controller sets an extraction condition depending on the bundle state, which includes drive conditions for the extraction unit, separation unit, and air supply mechanism. | 06-21-2012 |
20130241706 | IC CARD AND COMMAND PROCESSING METHOD FOR IC CARD - According to one embodiment, an IC card includes a communication unit, a controller, a data storage unit, a command processor, and a response unit. The controller performs data communication of the communication unit by using a logical channel. The command processor performs access to data specified by a command on a logical channel specified by the command. The response unit outputs a response message in response to the command, with the response message added with information indicating that the specified data is inaccessible because the data is used on an other logical channel, if the data specified by the command is inaccessible because the data is used on a channel other than the logical channel of the command. | 09-19-2013 |
Patent application number | Description | Published |
20120302424 | OPTICAL GLASS, GLASS MOLDED BODY, OPTICAL DEVICE AND THEIR PRODUCTION METHODS - An optical glass comprising, by mass %, 12 to 30% of total of B | 11-29-2012 |
20130054733 | FILE TRANSFER DEVICE AND METHOD THEREFOR - There is provided a file transfer device in which a determining unit determines, when a first file requested by a user terminal is not cached in a file buffering unit, a second file transferred to the user terminal based on a file cache status of the file buffering unit, a transfer protocol unit reads the second file from the file buffering unit while the file buffering unit reads the first file, a transmitting unit transmits the second file to the user terminal, wherein the instructing unit determines to transfer the first file, based on a progress status of reading the first file, the transfer protocol unit suspends reading the second file and reads the first file from the file buffering unit, the transmitting unit transmits the first file read by the transfer protocol unit to the user terminal. | 02-28-2013 |
20140281660 | INFORMATION PROCESSING DEVICE, TIME ADJUSTING METHOD, AND TIME ADJUSTING PROGRAM - One embodiment provides an information processing device which includes a clock unit, a file access unit and a setting unit. The clock unit is configured to count up an elapsed time from a prescribed reference time if an origin time has not been set, and to count up an elapsed time from the origin time if the origin time has been set. The file access unit is configured to access a file which has time information given by an external device or the information processing device. The file is stored in a storage device. The setting unit is configured to acquire the time information from the file via the file access unit, and to set the acquired time information into the clock unit as the origin time. | 09-18-2014 |
20140324799 | DATA PROCESSING APPARATUS, DATA PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT - According to an embodiment, a data processing apparatus includes a first generating unit, a second generating unit, a transfer instructing unit, and a transfer controller. The first generating unit generates transfer instruction information that specifies a storage position of transfer data in a data transfer source, a storage position of the transfer data in a data transfer destination, and a data transfer size, when the first generating unit determines that data transfer from a first storage unit to a second storage unit is required. The second generating unit generates fragment-transfer instruction information that is obtained by fragmenting the transfer instruction information into fragments of a predetermined data size. The transfer instructing unit instructs to perform data transfer based on the fragment-transfer instruction information. The transfer controller controls the data transfer between the first storage unit and the second storage unit according to instruction of the data transfer. | 10-30-2014 |
20140325174 | ACCESS CONTROL APPARATUS, ACCESS CONTROL METHOD, AND COMPUTER PROGRAM PRODUCT - According to an embodiment, an access control apparatus includes a determiner and a controller. The determiner is configured to determine whether an access state of a first device to a storage device satisfies an exclusion criterion for access to the storage device from a second device. The controller is configured to prohibit the access to the storage device from the second device when the access state of the first device satisfies the exclusion criterion. | 10-30-2014 |