Abstract: According to one embodiment, a wireless communication apparatus includes a wireless unit and a control unit. The wireless unit is configured to set, for each period, a transmit state including a first period for transmitting a connection request to establish connection or a receive state including a second period for receiving a connection request and to transmit or receive a signal, both lengths of the first period and the second period being equal. The control unit is configured to control the wireless unit to operate in one of a transmit mode, a receive mode and a transceive mode. The control unit causes the wireless unit to operate in the receive mode or the transceive mode before a trigger signal is externally input, and to operate in the transmit mode if the trigger signal is input.

Abstract: According to one embodiment, a wireless communication apparatus includes following units. The first timer measures first time intervals. The second timer measures second time intervals. The time interval selection unit selects a second time interval among second time intervals included in each first time interval. The control unit controls the transmitting unit and the receiving unit to operate, during the selected second time interval, in a first operational state in which a transmission of a connection request signal and a wait for reception of a response signal are repeatedly performed, and to operate, during each of the second time intervals other than the selected second time interval, in a second operational state in which a wait for reception of a connection request signal transmitted by another apparatus is performed for a third time interval shorter than each of the second time intervals.

Abstract: According to one exemplary embodiment, a communication apparatus includes: a measurement module which measures reception power of each field; a determination module which determines whether the reception power is within a range; a calculator which calculates a gain using the reception power if the reception power is not within the range; an adjuster which adjusts a field according to one of an initial gain and the calculated gain; a selector which selects a field length according to the number of field adjustments by the adjuster; and a transmitter which transmits information regarding the field length. When the number of the adjustments is lower than a first threshold value, the selector selects a first value, and when the number of the adjustments is equal to or higher than the first threshold value, the selector selects a second value that is higher than the first value, as the field length.

Abstract: A wireless apparatus includes: a first wireless unit, a second wireless unit, a controller, and a processing unit. The first wireless unit performs wireless communications in a first communication mode for performing the communications within a first communication coverage area. The second wireless unit performs wireless communications in a second communication mode for performing the communications within a second communication coverage area which is smaller than the first communication coverage area. The controller starts the second wireless unit on the basis of a received power of the start notification signal. The start notification signal is received by the first wireless unit. The processing unit manages or holds data transmitted and received by the first wireless unit and the second wireless unit.

Abstract: According to one embodiment, there is provided a wireless communication method, including: a start step of performing a connection process with a second wireless device; a communication step of performing communication for a predetermined term in a first mode; a determination step of determining, in accordance with a communication status, whether to change a communication mode from the first mode to a second mode in which communication at a higher speed than the first mode is performed, change an operating frequency channel for communication to another frequency channel than the first frequency channel, or continue the first mode; and a transmission step of transmitting a mode change signal when the determination is made to change the communication mode, and transmitting a channel change signal when the determination is made to change the operating frequency channel.

Abstract: A radio communication apparatus includes a first detection unit configured to detect a first signal in a first carrier sense period contained in a pre assigned reception slot, a relaying unit configured to relay the detected first signal, a second detection unit configured to detect a second signal in a second carrier sense period contained in a pre assigned transmission slot, and a stopping unit configured to stop transmission in the transmission slot when the second detection unit detects the second signal.

Abstract: A terminal station radio communication device belongs to a second radio communication system which shares a frequency channel with a first radio communication system in which a radio terminal station communicates with a radio base station in a predetermined time period using a predetermined frequency channel. The terminal station radio communication device includes: a transmission power determining unit which sets up signal transmission power, the signal transmission power being usable for communications between radio communication devices belonging to the second radio communication system, and being determined such that reception power at the radio base station is below a predetermined threshold; a synchronizer enabling the radio terminal station to obtain timing information to start signal transmission; and a signal transmitter starting transmitting the signal at the timing represented by the timing information and terminating the signal transmission within a predetermined time period.

Abstract: An image forming apparatus includes an image bearing member and a toner image forming device forming a toner image on the image bearing member, using light toners, and dark toners which have a same hue as that of the light toners and are darker than the light toners. The apparatus forms images using first and second settable resolution grades.

Abstract: A radio communication terminal includes a detection unit configured to detect a plurality of usable frequencies of a frequency range, in which the radio communication terminal plans to transmit, at least depending on whether or not a power of a first received signal is greater than a first threshold, a selection unit configured to select, when a first frequency band from f0+f1 to f0+f1+?f1 (f1 is a first frequency, and ?f1 is a first bandwidth) and a second frequency band from f0?f1??f1 to f0?f1 are simultaneously usable with respect to a center frequency f0 of a utilizing frequency range including the usable frequencies, the first frequency band and the second frequency band as a pair of utilizing frequency bands, and a transmission unit configured to transmit different signals in the pair of utilizing frequency bands.

Abstract: An image forming apparatus includes an image bearing member for bearing an electrostatic latent image; a rotatable developer carrying member, provided opposed to the image bearing member, for carrying a developer including toner and a carrier to a position where the developer carrying member is opposed to the image bearing member; a regulating member for regulating the amount of the developer to be carried on the developer carrying member; a driving device for rotating the developer carrying member; a controller for controlling the driving device to execute, at the time of end of image formation, a plurality of continuous operations each including acceleration of a rotational speed of the developer carrying member and deceleration thereof following the acceleration.

Abstract: A polymer electrolyte fuel cell system is disclosed, comprising a fuel cell having a predetermined power generation portion configured to operate at a predetermined temperature to generate an electric power using a fuel gas and an oxidizing gas supplied to said fuel cell, and a humidifier configured to humidify the fuel gas and the oxidizing gas, wherein the humidifier is configured to humidify the fuel gas and the oxidizing gas to allow the fuel gas and the oxidizing gas to have dew points higher than the predetermined temperature, the humidified fuel gas and oxidizing gas having the dew points higher than the operating temperature being supplied to the fuel cell.

Abstract: A mold for a use of making a fuel cell separator comprises: a first flow path forming portion to form a cooling medium flowing path, or to form an oxidizing gas flowing path, or to form a fuel gas flowing path; and an injection gate to shoot out a forming material settled on the first flow path, and/or disposed at near place with the first flow path.

Abstract: An image forming apparatus includes an image bearing member having a photosensitive layer; toner image forming means for forming a detection toner image not to be formed on a recording material on the image bearing member; detecting means for optically detecting the detection toner image; control means for controlling a toner image forming condition of the toner image forming means on the basis of a result of detection of the detecting means; a transfer member for electrostatically transferring a toner image from the image bearing member onto a transfer material at a transfer region; constant voltage control means for providing a constant voltage applied to the transfer member; and voltage applying means for applying to the transfer member, when the detection toner image passes the transfer region, a predetermined voltage, controlled by the voltage control means, which has the same polarity as a charge polarity of toner.

Abstract: A polymer electrolyte fuel cell is provided with a conductive separator having one or more gas flow channels for supplying and exhausting a gas to and from an electrode of the fuel cell. The gas flow channels are connected to and in fluid communication with an inlet manifold on the separator. The cell also includes a gas supply connection in fluid communication with the inlet manifold of the separator. Water accumulation in the cell can be advantageously reduced by configuring the connections to the inlet manifold so that the lowermost part of any gas flow channel connections with the inlet manifold is above the uppermost part of the gas supply connection to the inlet manifold.

Abstract: A hydrogen purifying apparatus and method are provided for oxidizing and removing carbon monoxide (CO) in a modified gas containing CO in addition to a main component hydrogen gas. The apparatus and method use comprises a catalyst reaction segment having a catalyst layer for oxidizing CO, a material gas supplying segment for supplying the modified gas to the reaction segment via a material gas supply pathway, and an oxidant gas supplying segment for supplying an oxidant gas on the path of the material gas supply pathway. Preferably, the apparatus further comprises means for cooling the catalyst layer at the upstream side and means for heating the catalyst layer at the downstream side.

Abstract: An image forming apparatus includes an image bearing member for bearing an electrostatic latent image; a rotatable developer carrying member, provided opposed to the image bearing member, for carrying a developer including toner and a carrier to a position where the developer carrying member is opposed to the image bearing member; a regulating member for regulating the amount of the developer to be carried on the developer carrying member; a driving device for rotating the developer carrying member; a controller for controlling the driving device to execute, at the time of end of image formation, a plurality of continuous operations each including acceleration of a rotational speed of the developer carrying member and deceleration thereof following the acceleration.

Abstract: A polymer electrolyte fuel cell has an MEA-gasket assembly including an MEA having a polymer electrolyte membrane, a pair of catalyst layers, and a pair of gas diffusion electrodes, and a pair of gaskets provided on peripheral portions of surfaces on both sides of the MEA with gaps between the respectively adjacent gaskets and gas diffusion electrodes. A pair of electrically conductive separators is disposed to sandwich the MEA-gasket assembly with groove-shaped cell reaction gas passages on inner surfaces of the separators, each of the cell reaction gas passages running sequentially across a first portion of a respective gasket of the pair of gaskets, a first portion of a respective gap of the gaps, a respective gas diffusion electrode of the pair of gas diffusion electrodes, a second portion of the respective gap, and a second portion of the respective gasket. Each of the gaps is at least partially closed by a closure.

Abstract: An image forming apparatus includes an intermediary transfer member for primary-transferring the toner at a primary transfer position so that a second color toner image is primary-transferred from an image carrying member onto a first color toner image which has been transferred in a superposition manner; a secondary transfer member for secondary-transferring the first and second color toner images together from the intermediary transfer member onto a recording; a fixing apparatus for fixing the toner images on the recording material; a guide member for guiding the recording material to the fixing apparatus; an electrical discharging member, for electrically discharging the recording material onto which the toner images are secondary-transferred; and a voltage application apparatus for applying, to the electrical discharging member before the secondary transfer, a voltage of a polarity identical to that of the first color toner image on the intermediary transfer member at a predetermined period.

Abstract: A method for manufacturing a hydrogen generator of the present invention is a method for manufacturing a hydrogen generator including: a water evaporator which has an inner tube, an outer tube, and a spacer disposed between the inner tube and the outer tube and in which a passage defined by the spacer is supplied with water and a raw material and heated to generate a material gas containing steam; and a reformer which has catalyst and in which the catalyst is heated to generate the material gas containing the steam from the material gas containing the steam, and the method includes: a disposing step (S2) of disposing the spacer between the inner tube and the outer tube; and a tube expanding step (S3) of expanding the inner tube to form the passage defined by the spacer.

Abstract: A transfer control device is arranged between a bus and a bus interface. The transfer control device includes a bus connecting unit that is connected to plural signal lines of the bus, an interface connecting unit that is connected to plural signal lines of the bus interface, and a connection control unit that connects, when a defective signal line exists in the plural signal lines of the bus, a signal line corresponding to the defective signal line out of the plural signal lines of the bus interface and a signal line other than the defective signal line out of the plural signal lines of the bus.