Abstract: A display device includes: a display which includes a display screen on which a video is displayed; a decorative sheet disposed on a display screen side of the display, is larger than the display screen in a front view of the display screen, and covers the display screen, the decorative sheet including a first region which overlaps with the display screen in the front view and a second region which does not overlap with the display screen in the front view; and a controller which controls a luminance of the video that is displayed by the display, based on (i) an illuminance of ambient light around the display and the decorative sheet and (ii) first information indicating a relationship between the illuminance and appearances of a third region corresponding to a black display region of the video in the first region and the second region on the decorative sheet.

Abstract: A display device (100) includes: a display (10) which includes a display screen (10a) on which a video is displayed; a decorative sheet (20) which is disposed on a display screen (10a) side of the display (10), is larger than the display screen (10a) in a front view of the display screen (10a), and covers the display screen (10a), the decorative sheet including a first region (R1) which overlaps with the display screen (10a) in the front view and a second region (R2) which does not overlap with the display screen (10a) in the front view; and a controller (50) which controls a luminance of the video that is displayed by the display (10), based on (i) an illuminance of ambient light around the display (10) and the decorative sheet (20) and (ii) first information indicating a relationship between the illuminance and appearances of a third region and the second region (R2) on the decorative sheet (20), the third region corresponding to a black display region of the video in the first region (R1).

Abstract: A display apparatus includes: a display including a display surface on which an image is displayed; and a decorative layer that is arranged on the display surface side of the display and includes a base layer and a design layer each formed to cover the display surface. The base layer includes a light diffusing material. A plurality of microholes are formed through the base layer. The design layer is formed to cover the plurality of microholes and a non-opening portion of the base layer.

Abstract: A radio transmission device includes: a known signal generating unit that generates a first known signal and a second known signal mapped in such a manner that subcarriers for transmitting a first signal not being 0 do not overlap with each other in symbols of one time band; an IDFT unit that converts the first known signal and the second known signal from a frequency domain signal into a time domain signal; a GI inserting unit that inserts a guard interval into the first known signal and the second known signal converted into time domain signals; a transmission antenna that transmits the first known signal in which the guard interval is inserted; and a transmission antenna that transmits the second known signal in which the guard interval is inserted.

Abstract: An object is to provide a monitor device capable of reducing threat of DoS attacks on a mobile network. A monitor device (10) according to the present invention includes a signal monitor unit (11) for estimating a specific base station communicating with a communication terminal (30) attacking a mobile network according to the number of times an ATTACH procedure is rejected, in which the ATTACH procedure is for registering information about a communication terminal (30) communicating with a base station (20) in a communication device (40) located in the mobile network, and a base station control unit (12) for causing the specific base station to determine whether to execute the ATTACH procedure related to a communication terminal served by the specific base station according to communication terminal identification information set in a signal transmitted from the communication terminal served by the specific base station.

Abstract: A base station, which is a transmission device according to the present invention, includes a space-time block coding unit that performs space-time block coding on a transmission symbol to generate a transmission block, a differential unit that performs a differential operation on the transmission block, a code multiplication unit that multiplies the transmission block by a code, a selection unit that selects one of the transmission block after the differential operation and the transmission block after the code multiplication, and wireless transmission units that transmit the transmission block selected.

Abstract: An object is to provide a monitor device capable of reducing threat of DoS attacks on a mobile network. A monitor device (10) according to the present invention includes a signal monitor unit (11) for estimating a specific base station communicating with a communication terminal (30) attacking a mobile network according to the number of times an ATTACH procedure is rejected, in which the ATTACH procedure is for registering information about a communication terminal (30) communicating with a base station (20) in a communication device (40) located in the mobile network, and a base station control unit (12) for causing the specific base station to determine whether to execute the ATTACH procedure related to a communication terminal served by the specific base station according to communication terminal identification information set in a signal transmitted from the communication terminal served by the specific base station.

Abstract: A base station, which is a transmission device according to the present invention, includes a space-time block coding unit that performs space-time block coding on a transmission symbol to generate a transmission block, a differential unit that performs a differential operation on the transmission block, a code multiplication unit that multiplies the transmission block by a code, a selection unit that selects one of the transmission block after the differential operation and the transmission block after the code multiplication, and wireless transmission units that transmit the transmission block selected.

Abstract: A transmitter includes: a first mapping unit to allocate modulation symbols to orthogonal frequency division multiplexing subcarriers; a first differential block coding unit to perform differential block coding on a part of the modulation symbols allocated; a second differential block coding unit to perform, by using output of the first differential block coding unit as a start symbol, differential block coding on a remaining modulation symbol excluding the part of the modulation symbols subjected to differential block coding by the first differential block coding unit; and a second mapping unit to convert output of the second differential block coding unit into a transmit signal that is transmitted from a plurality of antennas.

Abstract: A radio transmission device includes: a known signal generating unit that generates a first known signal and a second known signal mapped in such a manner that subcarriers for transmitting a first signal not being 0 do not overlap with each other in symbols of one time band; an IDFT unit that converts the first known signal and the second known signal from a frequency domain signal into a time domain signal; a GI inserting unit that inserts a guard interval into the first known signal and the second known signal converted into time domain signals; a transmission antenna that transmits the first known signal in which the guard interval is inserted; and a transmission antenna that transmits the second known signal in which the guard interval is inserted.

Abstract: A transmitter includes: a first mapping unit to allocate modulation symbols to orthogonal frequency division multiplexing subcarriers; a first differential block coding unit to perform differential block coding on a part of the modulation symbols allocated; a second differential block coding unit to perform, by using output of the first differential block coding unit as a start symbol, differential block coding on a remaining modulation symbol excluding the part of the modulation symbols subjected to differential block coding by the first differential block coding unit; and a second mapping unit to convert output of the second differential block coding unit into a transmit signal that is transmitted from a plurality of antennas.

Abstract: A wireless communication system includes: base stations that are a plurality of transmission devices that transmits signals including different known sequences using a same frequency; and a mobile station that is a reception device that performs channel estimation using a reception signal received from at least one of the plurality of transmission devices, an average time parameter, and at least one of a plurality of the known sequences corresponding to the plurality of transmission devices, and removes an interference signal included in the reception signal using a result of the channel estimation, the average time parameter being a parameter related to channel estimation accuracy and determined based on a moving speed of a moving one of the reception device that receives the reception signal and the transmission devices that transmits the reception signal.

Abstract: A transmitter according to the present invention includes: a mapping unit that generates modulation symbols by modulating a transmission bit sequence; a DSTBC coding unit that generates coded symbols by performing differential space-time block coding on the modulation symbols; a code conversion unit that performs, on the coded symbols, a conversion process selected from among a plurality of conversion processes; and an antenna that transmits the coded symbols after the conversion process.

Abstract: Includes electric motor (330) driving driving wheel (610) , speed control unit (300) controlling driving of electric motor (330) based on instructed speed ?r*, brake control unit (400) controlling hydraulic brake (500) applying mechanical braking to an electromotive vehicle, speed sensor (340) detecting traveling speed ?r of the electromotive vehicle, and determination unit (200) determining whether the mechanical braking needs to be applied in response to the difference between instructed speed ?r* and traveling speed ?r, and controlling operation of brake control unit (400) based on the determination result. Determination unit (200) determines that mechanical braking needs to be applied when instructed speed ?r* indicates deceleration and traveling speed ?r is higher than instructed speed ?r* , and performs control so that brake control unit (400) works hydraulic brake (500).

Abstract: A base station includes a wakeup signal transmission part transmitting transmission signal information to a wireless terminal by wireless communication. The transmission signal information includes a wakeup signal starting a given function included by the wireless terminal. The wakeup signal transmission part transmits the transmission signal information including connection information in addition to the wakeup signal to the wireless terminal. The connection information is information for causing the wireless terminal of a destination of transmission of the wakeup signal to connect by wireless communication using the given function.

Abstract: An object is to provide a monitor device capable of reducing threat of DoS attacks on a mobile network. A monitor device (10) according to the present invention includes a signal monitor unit (11) for estimating a specific base station communicating with a communication terminal (30) attacking a mobile network according to the number of times an ATTACH procedure is rejected, in which the ATTACH procedure is for registering information about a communication terminal (30) communicating with a base station (20) in a communication device (40) located in the mobile network, and a base station control unit (12) for causing the specific base station to determine whether to execute the ATTACH procedure related to a communication terminal served by the specific base station according to communication terminal identification information set in a signal transmitted from the communication terminal served by the specific base station.

Abstract: A communication system (1) includes an intervention apparatus (10) that performs a predetermined process on a main content that is exchanged between endpoint apparatus, and an intervention control unit (20) that controls whether or not to cause the intervention apparatus to perform the predetermined process on the main content that is exchanged between a first endpoint apparatus and a second endpoint apparatus.

Abstract: Includes electric motor (330) driving driving wheel (610) , speed control unit (300) controlling driving of electric motor (330) based on instructed speed ?r*, brake control unit (400) controlling hydraulic brake (500) applying mechanical braking to an electromotive vehicle, speed sensor (340) detecting traveling speed ?r of the electromotive vehicle, and determination unit (200) determining whether the mechanical braking needs to be applied in response to the difference between instructed speed ?r* and traveling speed ?r, and controlling operation of brake control unit (400) based on the determination result. Determination unit (200) determines that mechanical braking needs to be applied when instructed speed ?r* indicates deceleration and traveling speed ?r is higher than instructed speed ?r* , and performs control so that brake control unit (400) works hydraulic brake (500) .

Abstract: A base station of a communication system including the base station forming a communication area partly overlapping a communication area of another station and a control station controlling the base station includes: a data reception unit that receives same data as data transmitted from the control station to the another station from the control station; a phase rotation amount information reception unit that receives phase rotation amount information from the control station; a phase offset unit that assigns phase rotation to the data on a basis of the phase rotation amount information input from the phase rotation amount information reception unit; and a transmission unit that transmits the data to which the phase rotation is assigned.

Abstract: A base station includes a wakeup signal transmission part transmitting transmission signal information to a wireless terminal by wireless communication. The transmission signal information includes a wakeup signal starting a given function included by the wireless terminal. The wakeup signal transmission part transmits the transmission signal information including connection information in addition to the wakeup signal to the wireless terminal. The connection information is information for causing the wireless terminal of a destination of transmission of the wakeup signal to connect by wireless communication using the given function.