Abstract: A base station to be used in a communication system in which an uplink and a downlink are time-multiplexed, includes: a controller configured to set a first time period and a second time period in a single frequency block among multiple frequency blocks included in the uplink or the downlink and set symbol lengths or cyclic prefixes for the set first and second time periods so that the symbol lengths or cyclic prefixes set for the first time period are different from the symbol lengths or cyclic prefixes set for the second time period; and a transmitter configured to transmit setting information of the set symbol lengths or the set cyclic prefixes to the user equipment.
Abstract: A transmission device includes a housing, and a plurality of plug-in assemblies mounted in the housing, wherein each of the plug-in assembly that executes signal transmission and includes a board, heat generating parts mounted over the board and a fan that cools the heat generating parts.
November 5, 2018
May 23, 2019
Hiroyuki ABE, Koji SASAKI, Masatoshi YONEKURA, Koji IWAMOTO, Katsunori SUZUKI
Abstract: An apparatus is configured to execute: a first process for estimating a first component at a first time point by using a waveform and the first component calculated from the waveform before the first time point, the waveform being based on a running trace of a vehicle, the first component being less than a first frequency; a second process for estimating the first component at the first time point by using the waveform, the first component calculated from the waveform before the first time point, and a second component at the first time point, the second component being greater than the first frequency and predicted from the second component calculated from the waveform before the first time point; and a calculation process for calculating the second component at the first time point from the waveform based on the first components estimated by the first and second process.
Abstract: A packet processing device includes a memory; and a processor configured to acquire an amount of packets arriving in each first section length as a first sampling value, determine a plurality of temporary periods based on a multiple of the first section length, calculate, for each of the temporary periods, a statistical value obtained by quantifying a bias in the amount of packets arriving in each first section length based on the first sampling value, estimate the temporary period having a maximum statistical value as a neighborhood period, acquire an amount of packets arriving in each second section length as a second sampling value, determine a plurality of neighborhood temporary periods around the neighborhood period, calculate a statistical value for each neighborhood temporary period based on the second sampling value, and estimate the neighborhood temporary period having the maximum statistical value as a true period of the arriving packets.
Abstract: An information processing system includes an input device configured to sequentially transmit a plurality of first processing data pieces to each of a plurality of data processing devices, a data processing device of the plurality of data processing devices, coupled to the input device and configured to sequentially execute data processings on a plurality of first processing data pieces to generate a plurality of first processed data pieces, and an output device coupled to each of the plurality of data processing devices and configured to sequentially transmit a plurality of first data request signals to a first data processing device selected among the plurality of data processing devices, wherein the first data processing device sequentially transmits the plurality of first processed data pieces to the output device in response to the plurality of first data request signals from the output device, respectively.
Abstract: A cooling device includes an immersion tank to store a coolant where an electronic component is immersed and cause the coolant to evaporate by heat from the electronic component into vapor, a condenser tube including a starting end to which the vapor is supplied and a termination end from which the condensed vapor is discharged, an isolating part arranged in a midway part of the condenser tube, a coolant tank to accommodate the termination end of the condenser tube and the isolating part inside and store the coolant discharged from the condenser tube, an air tube that has a starting end coupled to the coolant tank and a termination end coupled to the starting end of the condenser tube, a liquid tube to supply the coolant from the coolant tank to the immersion tank, and a steam tube to supply the vapor from the immersion tank to the condenser tube.
Abstract: This disclosure provides an information transmission method and apparatus and communication system. The method includes: receiving, by a user equipment, indication information transmitted by a base station indicating that the user equipment is capable of using the sidelink in a case where the air-interface link is incapable of normally transmitting data; and using the sidelink by the user equipment to perform data transmission with another user equipment in the case where the air-interface link is incapable of normally transmitting data. Hence, even if in a case where an air-interface link is unable to transmit data normally, data information may be transmitted successfully in other links.
Abstract: A non-transitory computer-readable recording medium stores therein a position estimation program for causing a computer to execute a process for capturing an image; extracting, from the captured image, an optical signal pattern that identifies an information terminal; estimating a position of the information terminal based on the captured image; and transmitting notification information corresponding to the estimated position to the outside based on the extracted optical signal pattern that identifies the information terminal.
Abstract: An electronic apparatus includes a circuit board including a processor, and a pluggable board detachably coupled to the circuit board, wherein the pluggable board includes a first arbitration circuit that autonomously outputs a control request to the circuit board, and the circuit board performs processing based on the control request and supplies a result of the processing to the pluggable board.
Abstract: A transmission apparatus includes a logic circuit for performing a predetermined process, and outputting a logic output signal depending on the process, an open-drain signal generation circuit, connectable at an input terminal to the logic circuit and at an output terminal to a pull-up resistor, and a transmission path failure determination circuit for determining whether there is a failure in a transmission path which transmits a signal outputted from the logic circuit via the open-drain signal generation circuit, wherein the transmission path failure determination circuit includes an edge waveform information obtaining circuit for obtaining edge waveform information indicating a waveform of at least one of a rising edge and a falling edge of an application signal, and a failure determination circuit for determining whether the edge waveform information satisfies a predetermined condition, and outputting a failure signal indicating that there is a failure in the transmission path.
Abstract: A non-transitory computer-readable recording medium having stored therein an abnormality detection program for causing a computer to execute a process, the process includes referring to a storage that stores a plurality of determination criteria for each of processes based on a rotation frequency of the rotating part and harmonic frequencies of the rotation frequency in each of a plurality of processes, the rotation frequency and the harmonic frequencies of the rotation frequency being specified from a frequency spectrum of vibration data obtained by measuring, by a sensor, vibration of a monitoring target device that executes the plurality of processes in a predetermined order by using a rotating part that rotates, and detecting occurrence of an abnormality of the monitoring target device from the vibration data measured by the sensor based on the predetermined order and the plurality of determination criteria for each of the processes.
Abstract: A portable electronic device has a control unit including a processor whose clock frequency is variable, a temperature sensor, a housing that encases the control unit and temperature sensor, and a touch sensor that is able to detect touching to the surface of the housing. The control unit obtains a measured value of temperature from the temperature sensor, calculates an estimated value of surface temperature of the housing using the measured value and a first heat transfer model when the touch sensor has not detected touching, calculates the estimated value using the measured value and a second heat transfer model when the touch sensor has detected touching, decreases an upper limit for the clock frequency when the estimated value is higher than or equal to a threshold, and increases the upper limit for the clock frequency when the estimated value is lower than the threshold.
Abstract: A data transmission apparatus that transmits transmission data from a first memory to a second memory through a communication channel, the first memory storing data in units of a first data block of a first data size, and the communication channel having a width of a second data size, includes: a storage that stores the transmission data read from the first memory; and a transmission controller that transmits the transmission data stored in the storage from the first memory to the second memory in units of an integral multiple of the second data size, such that data transmission from the first memory to the second memory is efficiently performed.
Abstract: A first storage apparatus has first and second storage control apparatuses. The first storage control apparatus includes a first port used to transmit a command for a data input/output. The second storage control apparatus has a second port used to transmit the command. The second storage apparatus has a plurality of third ports that form a plurality of communication paths with the first and second ports. The second storage apparatus executes inputs and outputs of data based on commands received from the first storage control apparatus. Based on the processing state of the inputs and outputs via a first communication path currently being used to transmit commands to the second storage apparatus, the first storage control apparatus switches the port to be used to transmit a next command to the second storage apparatus to a port belonging to a second communication path.
Abstract: When a control unit performs a first operation on a data group, the control unit registers operation information corresponding to the data group in transfer control information. When the control unit extracts the data group as a transfer target, the control unit temporarily stores the corresponding operation information as stored information and transfers the data group to a storage apparatus. When the control unit performs a second operation on the data group while the data group is being transferred, the control unit updates the operation information registered in the transfer control information. When the transfer of the data group is completed, the control unit compares the operation information registered in the transfer control information with the stored information. If these items of information do not match, the control unit retransfers the data group to the storage apparatus.
Abstract: An information processing method and an information processing apparatus are disclosed, where the information processing method includes: inputting a plurality of samples to a classifier respectively, to extract a feature vector representing a feature of each sample; and updating parameters of the classifier by minimizing a loss function for the plurality of samples, wherein the loss function is in positive correlation with an intra-class distance for representing a distance between feature vectors of samples belonging to a same class, and is in negative correlation with an inter-class distance for representing a distance between feature vectors of samples belonging to different classes, wherein the intra-class distance of each sample of the plurality of samples is less than a first threshold, the inter-class distance between two different classes is greater than a second threshold, and the second threshold is greater than twice the first threshold.
Abstract: An information processing device receives dictionary data, which is to be used in speech analysis and morphological analysis, and text data. Then, based on the dictionary data and the text data, the information processing device generates word HMM data that contains word information enabling identification of each word registered in the dictionary data, and contains co-occurrence information about the co-occurrence, with respect to each word, of the words included in the text data.
October 30, 2018
May 23, 2019
Masahiro Kataoka, SATOSHI MITOMA, KEN HAYASHIDA
Abstract: Before an active program replacement is carried out, a storage controller confirms a communication state between a redundant storage controller having a redundant configuration with the storage controller and the second storage device, and prohibits, in a case where an abnormality is detected in the communication state between the redundant storage controller and the second storage device, the active program replacement of the first storage controller. This inhibits occurrence of system down when active firmware replacement process is to be carried out in a storage system including multiple storage devices connected to one another.
Abstract: A storing unit stores a data set including a plurality of data elements and a first Bloom filter used to determine whether a query-target data element is present in the data set. A calculating unit deletes, when some data elements are deleted, a first bit array from the first Bloom filter. The first bit array has the number of bits corresponding to the number of deleted data elements. When a query-target first data element is entered, the calculating unit adds a second bit array temporarily to a second Bloom filter obtained by deleting the first bit array. The second bit array has the same number of bits as the first bit array, with all bits set to a specific value. Using the second Bloom filter, the calculating unit determines whether the first data element is present in the data set, from which some data elements have been deleted.
Abstract: A non-transitory computer-readable recording medium recording a character area extraction program for causing a computer to execute a process includes changing a relationship in relative sizes between an image and a scanning window that scans the image; scanning the scanning window based on a changed relationship, specifying a scanning position at which an edge density of an image area included in the scanning window is equal to or larger than a threshold value, extracting one or more areas indicated by the scanning window at the specified scanning position as one or more character area candidates, determining, when overlapped character area candidates included in the one or more character area candidates overlap with each other, a maximum character area candidate having a maximum edge density among the overlapped character area candidates, and extracting the image area included in the maximum character area candidate as a character area.