摘要:
A radio device including a plurality of antennas transmitting and receiving a signal a reception band filter which controls a pass frequency band a measuring circuit which measures a reception level of the signal received by each of the plurality of antennas in a preamble in the signal received through the reception band filter an antenna switch which switches the plurality of antennas based on a measurement result from the measuring circuit and a processor which controls transmission and reception of the signal of the radio device and a pass frequency band of the reception band filter, and which transmits, based on a packet density, an instruction for changing the preamble from a first data length to a second data length to the other radio device and for changing the pass frequency band of the reception band filter from a first band to a second band.
摘要:
Disclosed is a method for producing an electrode material which has high discharge capacity at high charge/discharge rate and enables to realize sufficient charge/discharge rate performance. Also disclosed are an electrode material, an electrode and a lithium ion battery. Specifically disclosed is a method for producing an electrode material, which is characterized in that a slurry containing an electrode active material or a precursor of the electrode active material, and organic compounds each selected from at least two groups among the group A, group B and group C is sprayed and dried for forming a granule, and the thus-formed granule is fired at a temperature not less than 500° C. but not more than 1000° C. in a non-oxidizing atmosphere.
摘要:
A communication terminal apparatus includes a storage section configured to store a library function in which a first specific instruction is executed a process to be executed prior to a communication with a communication target and a second specific instruction is executed before returning to a call source, a client application, an attribute value group of the client application, and an permissible address range of the first specific instruction. A communication instruction execution control section controls execution of a communication instruction based on the attribute value group of the client application, when the client application executes the communication instruction to generate an internal interruption. A security gate entering section checks whether or not an address of the first specific instruction is within a permissible address range when the client application executes the first specific instruction to generate the internal interrupt, and changes the attribute value group of the client application when the address of the first specific instruction is within the permissible address range. A security gate exiting section returns the attribute value group of the client application to an original state when the client application executes the second specific instruction to generate the internal interrupt.
摘要:
An information processing system is equipped with a first information processing device that stores first object group, and a second information processing device that obtains an operation request from a subject, said operation request indicating content of an operation for an object to be operated, and processes the object to be operated on the basis of the operation request. The first information processing device is equipped with a storage means for additional access control policies, wherein for each first object in the first object group, a set of second objects for which the feasibility of an operation is determined using the same control rule as the first object is indicated as a changed object group. In cases when the object to be operated is included in the aforementioned changed object group, the second information processing device references the additional access control policy and acquires the changed object group corresponding to the object to be operated. Thereafter, the determination of whether an operation request can be processed for the object to be operated is made by determining whether the operation request can be processed for the changed object group.
摘要:
Disclosed is a method for producing an electrode material which has high discharge capacity at high charge/discharge rate and enables to realize sufficient charge/discharge rate performance. Also disclosed are an electrode material, an electrode and a lithium ion battery. Specifically disclosed is a method for producing an electrode material, which is characterized in that a slurry containing an electrode active material or a precursor of the electrode active material, and organic compounds each selected from at least two groups among the group A, group B and group C is sprayed and dried for forming a granule, and the thus-formed granule is fired at a temperature not less than 500° C. but not more than 1000° C. in a non-oxidizing atmosphere.
摘要:
A wireless sensor network system includes a plurality of sensor devices each having a non-directional antenna, and an information gathering apparatus having an adaptive array antenna and gathering information detected by the plurality of sensor devices. Each sensor device includes a transmitter to transmit a transmission request for connecting to the information gathering apparatus. The information gathering apparatus includes, a first directivity-changing section that, when the information gathering apparatus receives a transmission request from an unconnected sensor device, performs one of changing the adaptive array antenna to be non-directional, and changing a directivity of the adaptive array antenna, and that receives a signal transmitted from one of the unconnected sensor device and the unconnected sensor device and a connected sensor device, and a second directivity-changing section to change the directivity in accordance with a reception state of the signal.
摘要:
A disclosed group delay characteristic correcting device corrects group delay characteristics of an analog low-pass filter used to remove aliasing of a digital-analog converter or an analog-digital converter. The group delay characteristic correcting device includes a digital signal processing unit configured to have an all-pass phase circuit at a stage previous to the digital-analog converter or at a stage subsequent to the analog-digital converter so as to correct the group delay characteristics of the analog low-pass filter.
摘要:
The present invention provides a wireless terminal apparatus, including a reception unit for receiving a multi-carrier signal generated by applying an N-point (where N is a natural number) inverse fast Fourier transform (IFFT) to a plurality of sub-carriers to which transmission information for a plurality of wireless terminal apparatuses is allocated; a fast Fourier transform unit for extracting a plurality of the sub-carriers from the multi-carrier signal; a thin-out unit, being placed at the front stage of the fast Fourier transform unit, capable of changing, from the N points, a sampling number of the multi-carrier signals which are digitalized; and a judgment unit for discerning, based on sub-carrier allocation information accompanying the multi-carrier signal, whether or not the sub-carrier of another wireless terminal apparatus overlaps with that of the wireless terminal apparatus itself in the case of changing the sampling number from the N points, and determining a sampling number for the thin-out unit.
摘要:
A phase tracking circuit includes a divider part dividing an input signal that includes data sub-carriers and pilot sub-carriers into groups so that each of the groups includes at least one of the pilot sub-carriers, and a correcting part correcting phases of data sub-carriers of the input signal included in one of the groups on the basis of an amount of phase rotation of the at least one of the pilot sub-carriers included in the above one of the groups.
摘要:
A piston operating a first clutch is disposed between a first drum accommodating the first clutch and a second drum accommodating a second clutch, and an oil reservoir storing lubricating oil that has lubricated the first clutch is provided on an inner cylindrical surface of a skirt portion of the piston. Barriers having different inner diameters are provided to the axial front and rear of the oil reservoir. When the second clutch is disengaged such that the amount of lubricating oil supplied to the oil reservoir increases, the lubricating oil overflows the barrier having the smaller inner diameter, and thus flows to the second clutch.