Abstract: In UWB communication based on an MB-OFDM communication scheme, when a jamming interference is detected within a receiving frequency band, the frequency of a local signal LO is altered to a frequency that will cause the jamming to be converted to a frequency outside the pass band of an LPF.

Abstract: Individual radio sets 12a-12e constituting an onboard radio communication system operate together with an adjacent vehicle detection unit (ultrasonic sensors 13a-13e) for detecting a second vehicle adjacent to a first vehicle 11. When it detects the adjacent vehicle, a radio interference decision unit constituting the radio sets 12a-12e decides radio interference due to an onboard radio communication system with the same radio scheme. When it detects the radio interference, a frequency channel switching unit constituting the radio sets 12a-12e switches the frequency channel to be used to avoid the interference of the radio waves.

Abstract: A charge guidance apparatus includes a history creation retaining unit 23 for creating history information about a charging spot, charge start time and charging duration of a battery 14 of a vehicle 1; a learning processing unit 24 for learning a usual charging spot and charging period of time of the vehicle 1 from the charging spot, charge start time and charging duration of the battery 14 of the vehicle 1 with the frequency of charges executed being not less than a prescribed number of times, which are extracted from the history information; a decision processing unit 25 for deciding whether to give charge guidance or not based on whether the vehicle 1 is in the usual charging spot and charging period of time; and a charge guidance processing unit 26 for giving charge guidance in accordance with a decision result of the decision processing unit 25.

Abstract: A wireless communication device comprises: a detector configured to detect an interference wave and a frequency of the interference wave, the interference wave causing radio interference in the wireless communication; an interference avoidance controller configured to predict duration where the wireless communication is affected by radio interference due to the interference wave, and configured to issue a command for avoiding the radio interference due to the interference wave when the predicted duration exceeds a threshold time period; and a frequency controller configured to control frequencies used in the wireless communication to exclude the frequency of the interference wave in accordance with the command for avoiding the radio interference issued by the interference avoidance controller.

Abstract: A wireless communication device includes first wireless communication unit 2 for performing wireless communication with information terminal 21 through wireless LAN, and for obtaining frequency channel of interference wave by detecting interference wave due to wireless communication through wireless LAN between information terminal 24 and portable information terminal 25; second wireless communication unit 3, third wireless communication unit 4, . . . , nth wireless communication unit 5 for performing wireless communication with mobile terminal 22 or wireless headphone 23 by Bluetooth or wireless audio; channel aggregation unit 10 for setting the frequency channel of first wireless communication unit 2 at the same frequency channel as the frequency channel of interference wave the first wireless communication unit 2 obtains; and assignment control unit 9 for allocating frequency channels of the second, third, . . .

Abstract: A radio communication device is provided, including a radio control unit for achieving timing synchronization using frames having a fixed period, assigning a transmission and reception interval during which a report signal for informing state management information about each communication device and a control signal for controlling each radio communication device are transmitted and received to a fixed time interval at the head of each frame, for transmitting and receiving application data to and from a partner radio communication device during another time interval, and for reserving and securing some of communication band units, each of which has a fixed width and into which each frame is divided according to a difference between the transmission rate of the application data and that of a signal in a wireless section, on a unit-by-unit basis by using the report signal and the control signal.

Abstract: In UWB communication based on an MB-OFDM communication scheme, when a jamming interference is detected within a receiving frequency band, the frequency of a local signal LO is altered to a frequency that will cause the jamming to be converted to a frequency outside the pass band of an LPF.

Abstract: A radio communication device is provided, including a radio control unit 20 for achieving timing synchronization using frames having a fixed period, assigning a transmission and reception interval during which a report signal for informing state management information about each communication device 1A to 1D and a control signal for controlling each radio communication device 1A to 1D are transmitted and received to a fixed time interval at the head of each frame, for transmitting and receiving application data to and from a partner radio communication device during another time interval, and for reserving and securing some of communication band units, each of which has a fixed width and into which each frame is divided according to a difference between the transmission rate of the application data and that of a signal in a wireless section, on a unit-by-unit basis by using the report signal and the control signal.

Abstract: Individual radio sets 12a-12e constituting an onboard radio communication system operate together with an adjacent vehicle detection unit (ultrasonic sensors 13a-13e) for detecting a second vehicle adjacent to a first vehicle 11. When it detects the adjacent vehicle, a radio interference decision unit constituting the radio sets 12a-12e decides radio interference due to an onboard radio communication system with the same radio scheme. When it detects the radio interference, a frequency channel switching unit constituting the radio sets 12a-12e switches the frequency channel to be used to avoid the interference of the radio waves.