Abstract: Mobile communication systems and base station control apparatuses are provided, by which a spectral efficiency can be improved while preventing interference between a terrestrial cellular mobile communication system and a satellite mobile communication system, and mobile communication services using mobile station apparatuses can be provided more surely in an emergent condition in which a failure occurs in a part of terrestrial cellular base stations. A same frequency band is used for radio communications between a mobile station apparatus 10 and each of terrestrial cellular base stations 20 and a communication relay apparatus 41 of artificial satellite 40.

Abstract: Communication becomes impossible for many mobile stations when a communication failure occurs in a fixed station while the mobile stations are operating in an infrastructure mode. Provided is a communication system that includes a plurality of mobile stations and at least one of a base station and a wireless LAN access point, wherein the plurality of mobile stations establish communication with each other and form an ad hoc network that realizes a mesh network topology, and at least one mobile station among the plurality of mobile stations establishes communication with at least one of the base station and the wireless LAN access point, and connects another mobile station among the plurality of mobile stations to the at least one of the base station and the wireless LAN access point using a tethering function.

Abstract: To provide a system comprising: an unmanned aerial vehicle; and a free space location database, wherein the unmanned aerial vehicle has: a camera that is capable of 360°-image capturing on a horizontal plane; a positioning apparatus that measures a location of the unmanned aerial vehicle; a direction measuring apparatus that measures a direction of the unmanned aerial vehicle; an altitude measuring apparatus that measures an altitude of the unmanned aerial vehicle; and an information transmitting unit that transmits, to the free space location database, camera image data captured by the camera at every predetermined altitude, and the location, direction and altitude of the unmanned aerial vehicle at time of image capturing by the camera, and based on the camera image data, and the location, direction and altitude of the unmanned aerial vehicle, the free space location database corrects 3D data including terrain information to generate free space location data.

Abstract: An object of the present invention is to provide an antenna control system and a method capable of consistently maintaining an optimum orientation point between a donor antenna and an adjacent base station.

Abstract: When bandwidth is dynamically allocated for audio communication via satellite communication, newly occurring audio communication can negatively affect the communication quality of the existing audio communication. Provided is a data communication apparatus that communicates via a satellite and includes an allocation control section that allocates in advance, for audio communication via the satellite, a bandwidth that is larger than a bandwidth needed for current audio communication being performed via satellite by at least a predetermined bandwidth. A program causes a computer to function as this data communication apparatus. A satellite communication system includes this data communication apparatus and this satellite.

Abstract: To provide a system comprising: an unmanned aerial vehicle; and a free space location database, wherein the unmanned aerial vehicle has: a camera that is capable of 360°-image capturing on a horizontal plane; a positioning apparatus that measures a location of the unmanned aerial vehicle; a direction measuring apparatus that measures a direction of the unmanned aerial vehicle; an altitude measuring apparatus that measures an altitude of the unmanned aerial vehicle; and an information transmitting unit that transmits, to the free space location database, camera image data captured by the camera at every predetermined altitude, and the location, direction and altitude of the unmanned aerial vehicle at time of image capturing by the camera, and based on the camera image data, and the location, direction and altitude of the unmanned aerial vehicle, the free space location database corrects 3D data including terrain information to generate free space location data.

Abstract: An object of the present invention is to provide an antenna control system and a method capable of consistently maintaining an optimum orientation point between a donor antenna and an adjacent base station.

Abstract: Communication becomes impossible for many mobile stations when a communication failure occurs in a fixed station while the mobile stations are operating in an infrastructure mode. Provided is a communication system that includes a plurality of mobile stations and at least one of a base station and a wireless LAN access point, wherein the plurality of mobile stations establish communication with each other and form an ad hoc network that realizes a mesh network topology, and at least one mobile station among the plurality of mobile stations establishes communication with at least one of the base station and the wireless LAN access point, and connects another mobile station among the plurality of mobile stations to the at least one of the base station and the wireless LAN access point using a tethering function.

Abstract: An MAC address of each of devices under testing is entered. An IP address is assigned to each entered MAC address. The IP addresses and telephone numbers assigned to the devices and a failure test terminal are associated with one another and registered in a system server. Out of telephones connected to the devices, sets of two telephones are determined. For each set, a call is made from a first telephone connected to the device to a second telephone connected to another device. When the communication is established, a call is made from the called second telephone to the first telephone. If the communication is not established, communication with a telephone connected to the failure test terminal is tried. Thereby, adequate test on a large number of devices with simple operation is possible in performing an operation test on a VoIP device.

Abstract: A display panel driving device that can obviate the need for constant current driving circuits in an anode driver circuit, in which a light emission column electrode lines is opened in a light emission period during scanning of each line of a display panel, and parasitic capacitors of light emitting elements are used to allow leak current from the combined parasitic capacitors of the non-scanned elements to the scanned elements to serve as the light emission current of the scanned elements.

Abstract: The present invention provides a display panel drive system that can reduce the driver circuit power consumption and heat generation. The lighting rate of the light emitting elements in the display panel is calculated. The higher the lighting rate is, the higher the value of the voltage supplied to the driver circuit for driving the light emitting elements is set. The calculation of the lighting rate may be performed for each frame or each line of the display screen.

Abstract: A display panel driving device that can obviate the need for constant current driving circuits in an anode driver circuit, in which a light emission column electrode lines is opened in a light emission period during scanning of each line of a display panel, and parasitic capacitors of light emitting elements are used to allow leak current from the combined parasitic capacitors of the non-scanned elements to the scanned elements to serve as the light emission current of the scanned elements.