Patent application number | Description | Published |
20130034052 | MOBILE COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD - A mobile communication apparatus can perform data communication by the use of a first radio access network and a second radio access network. When a receiving section detects during time for which a processor is in a suspend state that the mobile communication apparatus moves out of a coverage area of the first radio access network, the receiving section releases the suspend state of the processor. When the suspend state of the processor is released as a result of detecting that the mobile communication apparatus moves out of the coverage area of the first radio access network, the control section establishes a connection to the second radio access network by the use of the processor. | 02-07-2013 |
20130083727 | MOBILE COMMUNICATION SYSTEM, MOBILE STATION AND METHOD FOR SETTING HOLDING PERIOD OF CONNECTION INFORMATION - In a mobile communication system, a mobile station notifies a first base station of a first holding period when a first mode, in which the mobile station performs wireless communication with one of the first base station and a second base station, is set, and notifies the first base station of a second holding period which is longer than the first holding period when a second mode, in which the mobile station performs wireless communication with the first base station and does not performs wireless communication with the second base station, is set. The first base station discards connection information when the notified holding period has elapsed after the mobile station is unable to perform the wireless communication with the first base station. | 04-04-2013 |
20130084844 | MOBILE COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - A mobile communication device is capable of communication by utilizing first and second wireless access networks and has a storage unit, a wireless device, and a processor. The wireless device detects a wireless state of the first wireless access network and writes flag information in accordance with the detected wireless state to the storage unit. When a suspend state is cancelled, the processor controls connection with the second wireless access network based on the flag information stored in the storage unit. | 04-04-2013 |
20130084893 | MOBILE STATION AND METHOD FOR MEASURING QUALITY OF RADIO SIGNAL - A mobile station includes a paging processing unit which extracts a calling signal included in radio signals and determines whether or not existing an incoming call to own mobile station by analyzing the calling signal in operation with an idle mode in which the radio signals from the base station are received during a predetermined period for every first cycle, and a signal quality measuring unit which measures quality of received radio signals for every second cycle which is two or more times the first cycle from among the radio signals received for every first cycle, but does not measure the quality of the radio signals received at a timing other than the second cycle. | 04-04-2013 |
20130095882 | WIRELESS TERMINAL DEVICE AND WIRELESS COMMUNICATION METHOD - A wireless terminal device includes a mode selecting unit that selects a WiMAX only communication mode in which communication is performed by a WiMAX scheme or a WiMAX dual communication mode in which communication is performed using the WiMAX scheme and an EV-DO scheme together, according to an input signal input through an input control unit. The wireless terminal device further includes a threshold value control unit that sets a connection determination threshold value, which is used to determine whether or not to establish a wireless connection by the WiMAX scheme, to a different value according to the wireless communication mode selected by the mode selecting unit. | 04-18-2013 |
20140092831 | WIRELESS TERMINAL DEVICE, RECORDING MEDIUM, AND CONTROL METHOD - CPU in a multi-wireless terminal, that allows simultaneous wireless communication for communication of a 1x system and communication of an LTE system, executes a process of monitoring a protocol state for the communication of the 1x system. When the protocol state for the communication of the 1x system is during transmission, the CPU executes a process of performing maximum value control for limiting a maximum value of transmission power for the communication of the LTE system. Moreover, when the protocol state for the communication of the 1x system is any state other than during the transmission, for example, during idle or during position registration operation, the CPU executes a process of stopping the maximum value control. | 04-03-2014 |
20140094161 | WIRELESS TERMINAL DEVICE, RECORDING MEDIUM, AND CONTROL METHOD - A CPU of a multi-mode wireless terminal capable of performing wireless communication using a plurality of communication systems including the LTE system determines whether an SMS with a command instructing to perform OTA setting is received from a network. When the SMS is received, the CPU performs the OTA data communication using communication by the LTE system by priority. When OTA data is received through the communication by the LTE system, the CPU stores the OTA data in a UICC. The CPU further executes a processing operation based on the OTA data stored in the UICC in response to a refresh instruction. | 04-03-2014 |
20140141820 | WIRELESS DEVICE AND SWITCHING CONTROL METHOD - A multi wireless system | 05-22-2014 |
20140141829 | CONTROL METHOD AND APPARATUS - A disclosed method includes: determining whether or not a wireless portable terminal is in a wireless communication range of a network, wherein the wireless portable terminal includes a device that includes an arithmetic unit and a volatile memory and controls communication with the network; and upon determining that the wireless portable terminal is not in a wireless communication range of the network, stopping power supply for a portion of the device in a state that a program for causing the arithmetic unit to execute a processing to search a base station or access point in the network is kept in the volatile memory. | 05-22-2014 |
20140146730 | WIRELESS TERMINAL, COMMUNICATION CONTROL METHOD AND COMMUNICATION SYSTEM - A disclosed wireless terminal includes a determination unit that determines whether or not the wireless terminal is outside of a communication area that is connectable with a first telecommunication network by radio; and a search unit that omits search for a base station or access point that relays communication with the first telecommunication network, upon determining that the wireless terminal is outside of the communication area. The aforementioned determination unit may further identify that the wireless terminal is inside of the communication area, and the search unit may further search for the base station or access point upon identifying that the wireless terminal is inside of the communication area. | 05-29-2014 |
20140155067 | WIRELESS TERMINAL APPARATUS, SWITCHING METHOD AND MACHINE READABLE MEDIUM - A wireless terminal apparatus includes a first communicator, a second communicator, a memory, and a processor coupled to the memory and configured to, measure a reception level, while a communication to the second communication network is established in a state where a power supply of the first communicator is set as off and also a power supply of the second communicator is set as on, switch the power supply of the first communicator from off to on when the reception level is lower than a first threshold, and switch the communication destination from the second communication network to the first communication network and switch the power supply of the second communicator from on to off when the reception level is lower than a second threshold that is lower than the first threshold. | 06-05-2014 |
20140211765 | WIRELESS COMMUNICATION DEVICE, CONTROL PROGRAM AND CONTROL METHOD - A wireless communication device includes a memory, and a processor coupled to the memory and configured to specify a timing for transmitting a signal for requesting information about a second base station that is used for voice data communication when conducting outgoing or incoming voice communication while conducting communication through a first base station that is used for data communication other than voice communication, transmit, in accordance with the specified timing, the signal for requesting the information about the second base station, and adjust by advancing the specified timing when a request for conducting incoming or outgoing voice communication is received. | 07-31-2014 |
20140213246 | WIRELESS COMMUNICATION DEVICE AND CONTROL METHOD - A wireless communication device includes a memory, and a processor coupled to the memory and configured to extract a control code from a signal received through a first communication system that has lower priority than a second communication system prior to carrying out communication through the second communication system, compare the extracted control code with a given control code stored in the memory, determine whether the extracted control code matches the given control code, and cause a communication device that is configured to carry out communication through the second communication system to stop processing for establishing a wireless communication when the processor determines that the extracted control code does not match the given control code. | 07-31-2014 |
20140269552 | COMMUNICATION SYSTEM, COMMUNICATION METHOD, MOBILE TERMINAL, AND CONTROL APPARATUS - A communication system includes a mobile terminal that can receive wireless signals by concurrently using cells respectively of a first and a second frequency bandwidth, the latter cell having a range narrower than the former cell. The mobile terminal further transmits state information that indicates at least the presence/absence of power supply to the mobile terminal or the remaining battery amount of the mobile terminal. The communication system further includes a control apparatus that allocates communication resources for the wireless signal that is transmitted by a base station to the mobile terminal. The control apparatus switches according to the state information transmitted by the mobile terminal, a first allocation process of allocating the first and the second frequency bandwidths for the wireless signal and a second allocation process of allocating the first frequency bandwidth or the second frequency bandwidth for the wireless signal. | 09-18-2014 |
20140274067 | MOBILE TERMINAL, CONTROL METHOD, AND COMMUNICATION SYSTEM - A mobile terminal includes a receiving unit that is configured to enable reception of a wireless signal by concurrently using a first cell of a first frequency bandwidth and a second cell of a second frequency bandwidth that is different from the first frequency bandwidth, the second cell having a range that is smaller than the first cell; and a processor that is configured to detect a movement speed of the mobile terminal, and shift the receiving unit to a second state when the detected movement speed falls below a predetermined speed during a first state in which the receiving unit receives the wireless signal by using at least the first cell, the second state being a state in which the receiving unit receives the wireless signal by using the second cell without using the first cell. | 09-18-2014 |
20140274095 | MOBILE TERMINAL AND CONTROL METHOD - A mobile terminal includes a receiving unit configured to enable reception of a wireless signal by concurrently using a cell of a first frequency bandwidth and a cell of a second frequency bandwidth that is different from the first frequency bandwidth, where the cell of the second frequency bandwidth having a range that is smaller than the cell of the first frequency bandwidth; a measuring unit configured to measure reception quality of each cell of the second frequency bandwidth; a setting unit configured to set among the cells of the second frequency bandwidth and based on a result of measurement, a cell that is to be used by the receiving unit; a detecting unit configured to detect a movement speed of the mobile terminal; and a control unit configured to terminate the measurement when the detected movement speed exceeds a predetermined speed. | 09-18-2014 |
20140295784 | APPARATUS AND METHOD FOR SWITCHING A COMMUNICATION SCHEME - A terminal includes a communication device and a processor connected to the communication device. The communication device is configured to conform to first and second communication schemes where the second communication scheme enables communication at a higher communication speed than the first communication scheme and has a narrower service area than the first communication scheme. The processor switches a prioritized scheme from the second communication scheme to the first communication scheme in a case where some of a plurality of signals including emergency information and sequentially notified according to each of the first and second communication schemes are received by the communication device when the prioritized scheme to be preferentially used is the second communication scheme, and returns the prioritized scheme from the first communication scheme to the second communication scheme in a case where the signal is not received for a predetermined time period in the first communication scheme. | 10-02-2014 |
20140357327 | COMMUNICATION CONTROL FOR POWER SAVING - A disclosed apparatus is a portable terminal apparatus. This apparatus includes: a determination unit that determines whether switching from a connection with a first wireless communication system to a connection with a second wireless communication system is effective, based on a communication state with a first base station apparatus included in the first wireless communication system or a moving state of the portable terminal apparatus itself; a transmission unit that transmits, upon determining that the switching is effective, a message to inquire a second base station apparatus included in the second wireless communication system, to the first base station apparatus, and omits, upon determining that the switching is not effective, the transmission; and a search unit that search, upon receiving data for searching for the second base station apparatus from the first base station apparatus, for the second base station apparatus according to the received data. | 12-04-2014 |
Patent application number | Description | Published |
20090317042 | RARE EARTH-DOPED CORE OPTICAL FIBER AND MANUFACTURING METHOD THEREOF - A rare earth-doped core optical fiber of the present invention includes a core comprising a silica glass containing at least aluminum and ytterbium, and a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, wherein the core has an aluminum concentration of 2% by mass or more, and ytterbium is doped into the core at such a concentration that the light absorption band which appears around a wavelength of 976 nm in the light absorption band by ytterbium contained in the core shows a peak light absorption rate of 800 dB/m or less. | 12-24-2009 |
20100050696 | METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM - A method for manufacturing an optical fiber preform of the invention is a method for manufacturing an optical fiber preform, which forms a deposition portion composed of glass fine particles on a glass rod so as to form a glass fine particle deposition, and suspends the glass fine particle deposition vertically into a heating furnace to heat the glass fine particle deposition to transparentize the deposition portion, the method comprising: a step of forming a hazy portion, by causing a surface portion of the glass rod to sublime and adhere to at least a portion of a region closer to one end of the glass rod than a region of the glass rod where the deposition portion is formed, before said heating; a step of forming the deposition portion by depositing the glass fine particles on the glass rod; and a step of transparentizing the deposition portion by heating the glass fine particle deposition in a state where the proximal end of the glass rod where the hazy portion is formed is held and the glass fine particle deposition is suspended vertically into the heating furnace. | 03-04-2010 |
20100067860 | RARE EARTH-DOPED CORE OPTICAL FIBER - A rare earth-doped core optical fiber includes a core comprising a silica glass containing at least aluminum and ytterbium, a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, and a polymer layer provided on the outer circumference of the clad and having a lower refractive index than that of the clad, wherein aluminum and ytterbium are doped into the core such that a loss increase by photodarkening, T | 03-18-2010 |
20100077800 | METHOD FOR FABRICATING POROUS SILICAPREFORM AND POROUS SILICA PREFORM - A method for fabricating a porous silica preform includes the steps of supplying fuel gas for generating an oxyhydrogen flame to a glass synthesizing burner; supplying Gas A containing silicon and Gas B containing fluorine to the burner; synthesizing glass particles; and depositing the glass particles around a starting rod, in which when glass particles are deposited directly on the starting rod, a supply of Gas A and a supply of Gas B supplied to the burner are adjusted so that a ratio of the number of fluorine atoms to the number of silicon atoms in the gas supplied to the burner satisfies the following Formula (1): | 04-01-2010 |
20100104249 | PLASTIC GLASS OPTICAL FIBER - A plastic glass optical fiber includes a glass core (diameter a | 04-29-2010 |
20100276822 | RARE EARTH-DOPED CORE OPTICAL FIBER AND MANUFACTURING METHOD THEREOF - A rare earth-doped core optical fiber of the present invention includes a core comprising a silica glass containing at least aluminum and ytterbium, and a clad provided around the core and comprising a silica glass having a lower refraction index than that of the core, wherein the core has an aluminum concentration of 2% by mass or more, and ytterbium is doped into the core at such a concentration that the absorption band which appears around a wavelength of 976 nm in the absorption band by ytterbium contained in the core shows a peak absorption coefficient of 800 dB/m or less. | 11-04-2010 |
20120024012 | OPTICAL FIBER PREFORM MANUFACTURING APPARATUS AND OPTICAL FIBER PREFORM MANUFACTURING METHOD - An optical fiber preform manufacturing apparatus includes a booth, a reaction chamber disposed inside the booth, a target member disposed within the reaction chamber, a burner that deposits glass particles on the target member, a partition plate that partitions the internal space of the booth into a first space where the reaction chamber and the burner are disposed and a second space, and that has a plurality of through holes that allows the first space and the second space to communicate with each other, an air supply unit that supplies clean air into the first space; and an exhaust unit that discharges air within the second space. | 02-02-2012 |
20120279259 | METHOD AND APPARATUS OF PRODUCING OPTICAL FIBER PREFORM - A method of producing optical fiber preform includes: forming a deposited layer by depositing glass particles on a periphery of a target element in a deposition mode while burning a mixed gas containing a glass source material gas, a flaming gas, and a supporting gas by use of a flaming burner; maintaining a state where the supporting gas flows at a flow velocity greater than or equal to a flow velocity at which a nozzle end of the supporting gas discharge nozzles does not glow while maintaining a pilot burner by allowing the flaming gas to flow to the seal gas discharge nozzle after a seal gas is replaced with the flaming gas in a case where a mode is changed from the deposition mode to a non-deposition mode; and replacing the flaming gas flowing to the flaming gas port with a purge gas. | 11-08-2012 |
20130074552 | APPARATUS AND METHOD FOR MANUFACTURING OPTICAL FIBER PREFORM - Provided is a method for manufacturing an optical fiber preform using a combustion burner. The method includes at least one of: a step α of, when a mode is changed from a deposition mode to a non-deposition mode, changing a gas discharged from a combustion gas port of the burner from a combustion gas to a purge gas, while maintaining a pilot light and a flow rate of a supporting gas from supporting gas discharge nozzles of the burner so that the nozzle tip does not glow; and a step β of, when the mode is changed from the non-deposition mode to the deposition mode, changing a gas discharged from the combustion gas port from a purge gas to a combustion gas, while maintaining a pilot light and the flow rate of the supporting gas so that the nozzle tip does not glow. | 03-28-2013 |
20140252154 | OPTICAL FIBER SCREENING TEST METHOD AND OPTICAL FIBER SCREENING TEST APPARATUS - An optical fiber screening test method in which while continuously travelling, an optical fiber passes a tension applying section which applies tension and the optical fiber which has passed the tension applying section is continuously wound by a winding bobbin is provided. The method includes running the optical fiber to which the tension has been applied along a first pulley and a second pulley sequentially, winding the optical fiber by the winding bobbin, and stopping rotation of the winding bobbin when the optical fiber is broken by applying the tension, and performing an adjustment so that an already-wound outer circumferential surface of the winding bobbin on which the optical fiber is already wound is not positioned on an extension line of a linear optical fiber travelling path from the first pulley to the second pulley at a time when the rotation of the winding bobbin is stopped. | 09-11-2014 |