摘要:
In an environment with large transmission delays, use of an OFDM transmitter which includes: a pilot/data allocator for allocating pilot/data symbols on OFDM symbols and an OFDM receiver which includes: an antenna for receiving the OFDM signals sent out from the antenna of this OFDM transmitter; a ratio unit for frequency transforming the OFDM signals received as RF signals to baseband signals; a frequency offset estimate for estimating an offset value; and a frequency offset corrector for performing frequency compensation by the amount of the frequency offset, improves data transmission efficiency while reducing interference of data between sub-carriers to prevent degradation of reception characteristics by performing appropriate frequency offset correction.
摘要:
A synchronization device including a plurality of counter sections each outputting a numerical signal indicating a counted number by detecting a clock, the synchronization device includes: a first counter section which outputs the numerical signal; a counter synchronization signal output section which outputs a counter synchronization signal indicating the same number as the number indicated by the numerical signal output by the first counter section; and a second counter section which outputs a numerical signal indicating the same number at the same timing as that of the first counter section based on the number indicated by the counter synchronization signal output by the counter synchronization signal output section.
摘要:
A position measuring unit measures a position. An area determining unit determines a means of movement. A position measurement result transmission determining unit determines, based on the means of movement determined by the area determining unit, whether or not to transmit the position measurement result of the position measuring unit to the information-providing apparatus. A transmitting unit transmits, in the case in which the position measurement result transmission determining unit determines to transmit the position measurement result to the information-providing apparatus, the position measurement result to the information-providing apparatus.
摘要:
A position measuring unit measures a position. An area determining unit determines a means of movement. A position measurement result transmission determining unit determines, based on the means of movement determined by the area determining unit, whether or not to transmit the position measurement result of the position measuring unit to the information-providing apparatus. A transmitting unit transmits, in the case in which the position measurement result transmission determining unit determines to transmit the position measurement result to the information-providing apparatus, the position measurement result to the information-providing apparatus.
摘要:
A wireless communication system includes at least one terminal apparatus and one communication apparatus which perform communication in a plurality of frequency bands. The terminal apparatus includes: a function information storing unit which pre-stores frequency band information indicating available frequency bands among the plurality of frequency bands and the number of simultaneously available frequency bands; and a terminal control unit which reads the frequency band information stored in the function information storing unit and transmits the read frequency band information to the communication apparatus via a first wireless communication unit. The communication apparatus includes: a base station control unit which selects at least one frequency band from the plurality of frequency bands based on the frequency band information transmitted from the terminal apparatus; and a second wireless communication unit which communicates with the terminal apparatus by use of the frequency band selected by the base station control unit.
摘要:
A wireless communication system includes at least one terminal apparatus and one communication apparatus which perform communication in a plurality of frequency bands. The terminal apparatus includes: a function information storing unit which pre-stores frequency band information indicating available frequency bands among the plurality of frequency bands and the number of simultaneously available frequency bands; and a terminal control unit which reads the frequency band information stored in the function information storing unit and transmits the read frequency band information to the communication apparatus via a first wireless communication unit. The communication apparatus includes: a base station control unit which selects at least one frequency band from the plurality of frequency bands based on the frequency band information transmitted from the terminal apparatus; and a second wireless communication unit which communicates with the terminal apparatus by use of the frequency band selected by the base station control unit.
摘要:
A control device configured with a torque/current computation section, an actual current computation section, a current feedback control section, and a voltage control section. A two-axis rotating coordinate system has a first axis defined in a direction of field magnetic flux of a magnet provided in the rotor, and a second axis defined in a direction that is shifted by an electrical angle of 90 degrees with respect to the first axis. In the case where a torque command includes periodic torque vibration, the torque/current computation section executes first-axis command fixation control in which a first-axis current command, which is a first-axis component of the two-phase current command, is fixed at a predetermined value and a second-axis current command, which is a second-axis component of the two-phase current command, is vibrated in accordance with the torque vibration.
摘要:
A solid-liquid separation device includes a plurality of fixed members and movable members that are movably disposed between the adjacent fixed members, and a screw extending through the fixed members and the movable members in a state where the screw is not in contact with the fixed members and the movable members. The screw is rotationally driven about a center axis line thereof. A filtrate separated from an object is discharged to the outside of the solid-liquid separation portion through filtrate discharge gaps, and the object that has a reduced liquid content ratio is discharged from the outlet to the outside. In order to increase significantly a dewatering ratio, the movable members are formed to move while penetrating closer to the center axis line of the screw than an outer circumferential edge of the blade of the screw, without coming into contact with the screw.
摘要:
A pharmaceutical composition which comprises 1) a compound represented by the following general formula (1) and/or a salt thereof; and 2) a ketone such as methyl ethyl ketone. Preferably, the compound represented by the following general formula (1) is luliconazole, where R1═R2=a chlorine atom: where R1 and R2 each independently represents a hydrogen atom or a halogen atom, and at least one of R1 and R2 represents a halogen atom. The present invention provides a preparation excellent in solubilization stability for a compound represented by the general formula (1) and/or a salt thereof in low-temperature or high-temperature storage.
摘要:
Provided area wireless communication apparatus and wireless communication control method, which are capable of preventing concentration of the data delivery requests from the wireless communication terminal apparatuses and thus reducing power consumption occurring when the wireless communication terminal waits for data delivery. AID managing section (201) divides the wireless LAN terminals associated with the access point into a plurality of groups and manages the grouped wireless LAN terminals using the group AID, and extension TIM generating section (207) generates extension TIM indicating that data addressed to the wireless LAN terminal is stored for each group. Extension TIM generating section (207) transmits the extension TIM to the subordinate wireless LAN terminal at timing shifted for each group.