Patent application number | Description | Published |
20090141718 | Communication Device and Communication System - High-quality communication using Multicast is realized in wireless communication where re-transmission processing is performed. | 06-04-2009 |
20100014683 | NOISE REDUCTION DEVICE - A noise reduction device including a noise detection microphone including a high-frequency noise detection microphone and a low-frequency noise detection microphone for respectively detecting a high-frequency noise and a low-frequency noise generated from a noise source; a noise control unit for generating a control sound signal for cancelling a noise detected by the noise detection microphone in a control center of control space; and a loudspeaker for outputting a control sound based on the control sound signal from the noise controlling unit. The high-frequency noise microphone is disposed in a vicinity of a head portion of a user in a state in which directivity in an opposite direction with respect to the control center is added, and the low-frequency noise detection microphone is disposed outside of a sound-insulating wall. | 01-21-2010 |
20100073250 | ANTENNA DEVICE - An antenna device provided in a space such as an aircraft, or the like at least a part of which is surrounded with a metal, and used in a radio communication system based on a MIMO system is disclosed. The radio communication system includes a server provided in a ceiling space of a cabin of the aircraft, a connection cable, a plurality of WAPs, and a plurality of client terminals provided near passenger's seats respectively. The antenna device is used as the antennas of WAPs, and has dipole array antenna including a plurality of antennas. The antenna device capable of ensuring a good communication quality even in any location in the space at least a part of which is surrounded with the metal can be provided. | 03-25-2010 |
20100104110 | NOISE REDUCTION DEVICE AND NOISE REDUCTION SYSTEM - It includes a microphone for detecting noise emitted from a noise source, a noise controller for generating control sound signal to reduce noise detected by the microphone based on information from the microphone, and a speaker for outputting control sound based on control sound signal from the noise controller, wherein a plurality of microphones and speakers are arranged for each seat, and a plurality of microphones are arranged in higher density for each seat in a specific direction. | 04-29-2010 |
20100111317 | NOISE REDUCTION DEVICE - A noise reduction device, including a microphone for detecting noise, a noise controller for reversing the phase of noise detected by the microphone based on information outputted from the microphone, and a speaker for outputting sound based on information outputted from the noise controller, is arranged at a seat surrounded by a shell portion having a cavity, wherein a speaker is disposed in the cavity of the shell portion. | 05-06-2010 |
20100182977 | IMAGE DISPLAY DEVICE AND WIRELESS COMMUNICATION SYSTEM - The present invention includes a receiving antenna receiving information while changing plural different wireless base stations; a seat information acquiring unit acquiring position information of a destination seat paired; a wireless base station selecting unit selecting a wireless base station to be connected on the basis of position information; and a directivity switching unit changing directivity of the receiving antenna on the basis of position information, which transmits at least one of video information and audio information from a wireless base station to a user seated on the seat. | 07-22-2010 |
20100216457 | WIRELESS COMMUNICATION SYSTEM - The present invention is a wireless communication system for establishing wireless communication between a wireless base station installed at the upper part of a communication area in a moving vehicle and a wireless terminal in the communication area, comprising a space surrounded by wall surfaces rising vertically in the communication area, wherein the space has an opening opened by specified width in a plane direction, and the wireless base station is installed in a region extended from the opening of the space by specified width outwardly of the wall surface. | 08-26-2010 |
20100231451 | ANTENNA DEVICE - An antenna device has a linear antenna element; a passive element section provided in proximity to the antenna element; and a control section that controls the passive element section. The passive element section has a linear line laid in parallel to the antenna element; and an impedance adjustment section that adjusts impedance of the passive element section. A compact antenna device capable of switching its directivity by means of electrical operation can be provided. | 09-16-2010 |
20110128949 | RADIO COMMUNICATION SYSTEM - A radio communication system is disclosed. This system includes a wireless base station placed at an upper section of a communicating zone in a mobile unit such as an aircraft, multiple seat-rows arranged along a longitudinal direction in the communicating zone, and wireless terminals placed at each one of seats of the seat rows. Radio communication is done between the wireless base station and the wireless terminals. The wireless base station is placed on the ceiling at the forefront or at the extreme end of the communicating zone relative to the longitudinal direction of the seat rows. | 06-02-2011 |
20110176432 | Radio Communication System Including Radio Terminal Apparatuses Each Arranged At Previously Determined Position - A radio communication system includes radio terminal apparatuses each arranged at a previously determined position, radio base station apparatuses for holding radio communications with these apparatuses, and a communication system controller for communicating with the respective radio terminal apparatus via the respective radio base station apparatuses connected thereto via a LAN. The communication system controller stores therein an ad-hoc radio communication permission table indicating permission or non-permission of each of direct radio communications between the respective radio terminal apparatuses, judges whether or not the direct radio communication is permitted based on the ad-hoc radio communication permission table, in response to a request signal for a direct radio communication with a further radio terminal apparatuses received from each radio terminal apparatuses via the radio base station apparatuses, and transmits a notice signal including a result of the judgment to the radio terminal apparatus which transmitted the request signal. | 07-21-2011 |
20120090011 | CONTENT UPLOAD SYSTEM AND CONTENT DISTRIBUTION SERVER - A content upload system includes: a content distributing server that is installed in an airplane and distributes audio-video contents into the airplane; and a plurality of content accumulating servers that are installed in a plurality of airports, in which the airplane is parked, and transmit the audio-video contents to the content distributing server through a network. The content distributing server selectively writes audio-video contents that have not been stored in the content distributing server of audio-video contents transmitted from the content accumulating server while the airplane is parked on the airport. | 04-12-2012 |
20140013365 | COMMUNICATION DEVICE AND WIRELESS COMMUNICATION SYSTEM - A communication device wirelessly connected to a seat-side communication device having a wireless communication function disposed on an attachment face of a fixed seat is described herein. The communication device is attached to a moving vehicle that moves substantially parallel to the attachment face of a fixed seat. The communication device comprises first moving vehicle faces disposed substantially parallel to the direction in which the moving vehicle moves and directly face the attachment face of the fixed seat, a second moving vehicle face disposed on the bottom face of the moving vehicle, third moving vehicle faces disposed facing the forward or backward movement direction of the moving vehicle, an antenna component configured to communicate with the seat-side communication device, and a controller configured to control the transmission and reception of data. The antenna component is disposed on at least one of the first, second, and the third moving vehicle faces. | 01-09-2014 |