Abstract: The invention provides a recording medium comprising a porous cellulose layer containing at least one cellulose selected from the group consisting of lightly-beaten cellulose pulp, mercerized cellulose and fluffed cellulose and a porous filler internally loaded therein, and a recording medium further comprising an ink-receiving layer.

Abstract: An OFDM receiver includes a timing error detection unit that determines error information based on a difference between receiving timing of a desired signal from a counterpart transmitter and receiving timing of an undesired signal from a non-counterpart transmitter. The timing error detection unit includes a pilot signal detection unit configured to detect a pilot signal of the desired signal and a pilot signal of the undesired signal from an FFT-processed received signal; a first converting unit configured to convert a frequency-domain channel estimate derived from the pilot signal of the desired signal to a first time-domain channel impulse response; a second converting unit configured to convert a frequency-domain channel estimate derived from the pilot signal of the undesired signal to a second time-domain channel impulse response; and an error information determination unit configured to determine the error information based on the first and second channel impulse responses.

Abstract: A communication device used in a first communication system under a frequency sharing environment where the first communication system and a second communication system establish communications within the same frequency band is disclosed. The communication device comprises a detector for detecting an interfering signal from the second communication system; and a determiner for determining transfer characteristics of a shaping filter according to a result of the detection, the shaping filter being used for a desired signal of the first communication system.

Abstract: In a mobile communication system, multiple transceivers perform radio communications in the same frequency band.

Abstract: In a recording medium having a porous ink-receiving layer containing alumina hydrate of boehmite structure formed on a base material, the alumina hydrate has crystallinity ranging from 15 to 80 and microcrystals of the alumina hydrate are directed to be parallel to a plane direction of the ink-receiving layer at a parallelization degree of not less than 1.5. The recording medium is employed in an ink-jet recording method conducting printing by ejecting ink droplets through an orifice onto the recording medium. A process for producing the recording medium comprises the steps of: applying a coating liquid containing alumina hydrate of boehmite structure with shearing stress onto a base material; and drying the coated material to obtain a degree of parallelization of a microcrystal of the alumina hydrate with a plane direction of the ink-receiving layer of not less than 1.5.

Abstract: A radio communication system for carrying out communications between radio stations by modulating a plurality of signal sequences to be transmitted and received into at least one frequency channel assigned to each of a plurality of cells is formed by a channel mapping means for rearranging for each cell a plurality of frequency channels assigned with respect to each cell, and newly assigning particular frequency channels as a transmission and reception band of said signal sequences, and a bandwidth control means for controlling a bandwidth of said assigned frequency channel according to a propagation state of said assigned frequency channel.

Abstract: An information transmission system for transmitting information from a sending apparatus to a receiving apparatus is provided. The information transmission system includes: a sending apparatus for modulating an information signal, generating a plurality of signals including an optical signal from the information signal which is modulated, and transmitting the plurality of signals via a plurality of routes; and a receiving apparatus for receiving the plurality of signals from the sending apparatus, diversity-combining the plurality of signals, and outputting the information signal, in which the plurality of signals are a plurality of optical signals or signals including a radio signal.

Abstract: A controller in a transceiver for radio communications in which the same frequency is shared between multiple communications systems is disclosed that includes: a cyclic autocorrelation value calculation part configured to calculate the cyclic autocorrelation value of a first one of the communications systems from a received signal; and a data transmission authorization part configured to determine whether to authorize data transmission in a second one of the communications systems based on the calculated cyclic autocorrelation value of the first one of the communications systems.

Abstract: A wireless resource assigning apparatus for assigning wireless resources to transmission data of a plurality of users is disclosed. The wireless resource assigning apparatus includes a scheduling part configured to start scheduling for all users from a first wireless resource among a plurality of wireless resources prioritized according to a predetermined criterion, and repeat scheduling up to the last wireless resource for users except for users to whom any wireless resource has been assigned.

Abstract: A transmitter comprises a frequency utilization status detector configured to detect the utilization status of an allocated frequency band based on a received signal, a symbol placement determination unit configured to determine placement of pilot symbols based on the detected status of frequency utilization, and a symbol placement unit configured to place the pilot symbols according to the determined symbol placement.

Abstract: A communication control method used in a cellular mobile communication system in which each base station can radiate radio wave beams to a plurality of directions and each base station communicates with mobile stations by using the same frequency is provided in which the method includes the step of: controlling first timing at which a base station radiates a first radio wave beam such that the first timing is different from second timing at which another base station radiates a second radio wave beam which may cause interference with the first radio wave beam.

Abstract: An OFDM transmitter is configured to perform a peak reduction process on a signal sequence to be transmitted in a stepwise manner to transmit a peak processed transmission signal. The OFDM transmitter includes a dividing inverse fast Fourier transform unit (104) configured to divide the signal sequence to be transmitted into N signal sequences (N>2) and perform inverse fast Fourier transform on each of the divided signal sequences to output N time signal sequences; a threshold control unit (106) configured to determine at least two threshold values (Cth) used in the stepwise peak reduction process; and a first peak reduction processing unit (1201) configured to determine a first cyclic shift to be applied to one of the time signal sequences based on a first one of the threshold values, produce a first cyclically shifted signal sequence according to the first cyclic shift, and output a first peak processed signal sequence based on the first cyclically shifted signal sequence.

Abstract: A frequency band allocation device is disclosed. The frequency band allocation device comprises an RF database (112) for storing frequency category information indicating a dedicated frequency band, a registered frequency band or unlicensed frequency band; a user information database (113) for storing user information; a frequency band selecting unit (1161, 1162) for selecting usable frequency bands based on the frequency category information and the user information; and a frequency band allocation unit (1163) for allocating a frequency band satisfying user required QoS out of the selected usable frequency bands.

Abstract: The present invention provides a compound represented by formula (I): wherein n is an integer selected from 1 to 20, and R1 and R2, which may be the same or different, each represent a hydrogen atom, or a linear or branched C1-C6 alkyl group, or a salt, a prodrug or a solvate thereof, as well as a drug, a pharmaceutical composition containing the compound, and the like.

Abstract: A nuclear magnetic resonance diagnosing apparatus for continuously taking tomograms in a space formed between a pair of magnets includes a cylindrical table top support of a gantry side, a pair of magnets vertically arranged, a table top support of the gantry side being interposed between the pair of magnets; and a column for supporting at least the magnet arranged in an upper side between the pair of magnets. The column is formed so that between a gantry and an examining table body, a width between a bridge construction, which is provided between the column and the table top support of the gantry side, and the table top support of the gantry side may be smaller than an examination width L determined by lines R? passing through a center of the table top support of the gantry side perpendicular to a center line R.

Abstract: A receiver for mobile communication includes a wireless scheme parameter storing unit (23) configured to store a plurality of characteristics of multiple wireless schemes, a wireless scheme estimation unit (22) configured to estimate one of the characteristics of a currently used wireless scheme from a received signal and select one of the wireless schemes corresponding to the estimated characteristic from the wireless scheme parameter storing unit, and a demodulator (24) configured to demodulate the received signal based on the selected wireless scheme.

Abstract: In a superconductive magnet device comprising upper and lower vacuum vessels coupled by a coupling conduit, the upper and lower vacuum vessels 9 and the coupling conduit 24 coupling them are made of a high electric-resistance material so that the magnetic flux of gradient magnetic field coils reaches the upper and lower pair of a second heat shields 8 and a coupling conduit 23 coupling the pair of the second heat shields 8. The coupling conduit 23 coupling the upper and lower pair of the second heat shields 8 is provided with a slit (cut) 41 extending in the vertical direction so that no eddy currents occur and thus eddy currents generated asymmetrically in the coupling conduit 23 are reduced. Artifacts caused by asymmetrical eddy currents can by reduced in an MRI apparatus using such a magnet device.

Abstract: An MRI apparatus having an open structure includes a static magnetic field generating magnet including magnetic field generating sources arranged above and below an imaging space and magnetic field fluctuation reducing plates arranged inside the magnet. Gradient magnetic field coils are fixed to the static magnetic field generating magnet so as to not be in contact with the magnetic field fluctuation reducing plates. When the strength of the magnetic field generated by the static magnetic field generating magnet fluctuates due to vibration of the gradient magnetic field coils or other devices during an imaging operation of the MRI apparatus, an eddy current is generated on the magnetic field fluctuation reducing plates in response to the magnetic field fluctuation components. Magnetic flux which cancels the static magnetic field fluctuation components is generated due to this eddy current, and consequently, a time-sequentially stable static magnetic field can be obtained.

Abstract: A mobile station is configured to measure receiving qualities of respective signals from a first antenna and a second antenna of a base station (S3, S5), store the results of the measurement, and request the base station to retransmit a signal from an antenna with a higher receiving quality, based on the stored measurement results, when an error is detected in received data thereafter (S10, S11, S12). The base station retransmits the data, using the antenna with the higher receiving quality (i.e., a base station antenna to yield the higher receiving quality at the mobile station) (S15). In another aspect, the mobile station measures a receiving quality of a signal and notifies the base station of the receiving quality. The base station selects a radio channel adapted to a receiving quality on the basis of the measurement result and transmits a signal, using the radio channel.

Abstract: The invention provides a recording medium that prevents ink overflowing even when printing is conducted in an ink quantity exceeding 100%, permits forming an image high in density and bright in color tone and can settle the cause of the occurrence of curling or cockling, a production process of the recording medium, a substrate for the recording medium and a production process of the substrate. The recording medium comprising a substrate and an ink-receiving layer formed on the substrate, wherein the substrate is composed mainly of a fibrous material and has, at a position adjacent to the ink-receiving layer in the substrate, a surface coated part region in a state that the surface of the fibrous material has been coated with an alumina hydrate, and the ink-receiving layer comprises a porous inorganic pigment as a principal component, and a production process of the recording medium.