Abstract: There is provided a power supply apparatus capable of supplying information as a power line communication signal superimposed on a voltage of a commercial frequency, although currents of the commercial frequency are not supplied to power receiving side external equipment, and capable of supplying power to a specific external apparatus together with the power line communication signal, by controlling supply of the currents of the commercial frequency to the external apparatus.

Abstract: A first communication apparatus 100 transmits a pilot signal which was generated by a pilot signal generation section 14, at predetermined timing, and detects an unbalance component of a transmission line 300 at the time of pilot signal transmission in an unbalance component detection section 13, and controls a transmission signal in such a manner that an unbalance component is reduced by a transmission control section 12 on the basis of the detected unbalance component.

Abstract: A window-defined mud guard assembly includes mud guards fitted to a side of a vehicle body for selectively opening or closing a lower side portion of a vehicle cabin and window units mounted above the mud guards. Each of the window units is made up of a window body disposed above the corresponding mud guard and a connecting element for connecting the window body with an associated to-be-connected element provided in the mud guard.

Abstract: There is provided a power supply apparatus capable of supplying information as a power line communication signal superimposed on a voltage of a commercial frequency, although currents of the commercial frequency are not supplied to power receiving side external equipment, and capable of supplying power to a specific external apparatus together with the power line communication signal, by controlling supply of the currents of the commercial frequency to the external apparatus.

Abstract: A line state detecting apparatus provided in a balanced transmission system includes, in transmission lines comprising a pair of conductors W1, W2 connected to a transmitting portion 13, current transformers T11, T12 primary sides of which are inserted to respectives thereof in series therewith and secondary sides of which are connected in series to cancel currents or voltages of the two transformer by each other, and a detecting portion 11 for detecting currents or voltages on secondary sides of the current transformers T11, T12. By an output of the detecting portion 11, a difference of currents or voltages of the conductors W1, W2 of the transmission lines is provided and an unbalance component between the conductors W1, W2 is detected.

Abstract: A relay apparatus includes a plurality of connecting terminals, such as a modem connecting terminal, a power line connecting terminal, an electric appliance connecting terminal and an antenna line connecting terminal; a selector that selects at least one connecting terminal from among the plurality of connecting terminals to transmit and receive a communication signal; and a control circuit that controls the selector. The relay apparatus further includes a first communication filter that passes signals in a frequency band used for communication by a power line communication modem and that blocks signals in other frequency bands, and a second communication filter that passes signals in a frequency band used for communication by another electric appliance and that blocks signals in other frequency bands.

Abstract: A window-defined mud guard assembly includes mud guards fitted to a side of a vehicle body for selectively opening or closing a lower side portion of a vehicle cabin and window units mounted above the mud guards. Each of the window units is made up of a window body disposed above the corresponding mud guard and a connecting element for connecting the window body with an associated to-be-connected element provided in the mud guard.

Abstract: A balanced transmission signal Tx (t) (voltage e, ?e) is applied to a transmission line (L1, L2), a suppression signal (ec) is generated from a common mode suppression signal source (ec), and the suppression signal (ec) is superposed on respectives of balanced transmission signals via adders (15a, 15b). By pertinently controlling a level of the suppression signal (ec), voltage levels and phases of respectives of the transmission signals transmitted to the transmission lines (L1, L2) are controlled.

Abstract: Provided is a multi-carrier communication apparatus, power line communication circuit, and multi-carrier communication method capable of decreasing omission of carrier detection even when a plurality of communication apparatuses are simultaneously transmitting signals at the state of time discord. Digital signals transmitted from a digital signal-processing unit 1 are converted into analog signals by an analog circuit unit 2 and then transmitted from a pair of lines 61 and 62 via a communication transformer 3. The digital signal-processing unit 1 has a frequency carrier detecting unit 10 which detects the existence of a carrier on the basis of a frequency characteristic of the received signal and the frequency carrier detecting unit 10 detects the carrier by taking correlation between sub-carriers adjacent to each other at every other interval.

Abstract: A multicarrier communication method selects carriers on the basis of an SN-ratio and the balancing of a transmission line. Available carriers are selected in accordance with the balancing of the balanced transmission line, in which the balancing is measured at either a sending terminal or a receiving terminal or alternatively at both, and the SN-ratio is measured between the sending terminal and the receiving terminal. Additionally, a modulation method having the greatest permissible multivalue is selected for each of the carriers, wherein the carriers are selected in light of the SN-ratio and balancing, or alternatively in a highest-to-lowest order of frequency. Transmission power is controlled for each of the carriers to suppress radiated emission, and the SN-ratio and balancing are measured at predetermined time intervals to renew the selection of the carriers and the selection of the modulation methods.

Abstract: A utility vehicle comprises plural rows of seats mounted in a vehicle body of the utility vehicle, and an extendable cargo bed positioned behind the seats. The cargo bed includes a bottom wall member having an extended region which is extended forward relative to a cargo accommodating space in an unextended state of the cargo bed. The plural rows of seats include a rear seat having a rear seat seating portion which is rotatably provided on the extended region of the bottom wall member such that the rear seat seating portion is rotatable forward to an upright position. The rear seat seating portion has a bottom plate provided integrally with a bottom surface thereof. In a state where the rear seat seating portion is rotated forward and is in the upright position, the bottom plate of the rear seat seating portion defines a front wall member of the cargo bed.

Abstract: A motorcycle rear fender assembly includes a rear fender mounted on a vehicle frame structure above a vehicle rear wheel, which fender is divided, in a forward and rearward direction, into three components, including an anterior rear fender subassembly forming a front portion of the rear fender, an intermediate rear fender subassembly forming an intermediate portion of the rear fender, and a posterior rear fender subassembly forming a rear portion of the rear fender.

Abstract: It is an object of the invention to provide a communication apparatus, a communication system and a communication method enabling efficient transmission in accordance with a situation of a wired transmission line and capable of reducing an influence by a radiation power of the transmission line. The communication apparatus of the invention executes wired transmission using a plurality of sub carriers and includes a transmission signal generator for generating a transmission signal, and a transmission signal controller for controlling a transmission power of the transmission signal generated by the transmission signal generator based on a radiation power in a transmission line in correspondence with a frequency of the sub carrier, and a transmitter for transmitting the transmission signal the transmission power of which is controlled by the transmission signal controller via the transmission line.

Abstract: A power supply apparatus has a coupled transformer that inputs and outputs a communication signal and a capacitor that has high impedance to a commercial power supply frequency and low impedance to a communication signal frequency. The capacitor is connected between a primary winding of the coupled transformer and a power reception terminal. To both ends of the capacitor, a switching regulator is connected via a noise reduction circuit. To a secondary winding of the coupled transformer, a modem of a power line communication apparatus is connected. In the configuration, the coupled transformer and the switching regulator are thus connected in series.

Abstract: A utility vehicle comprises plural rows of seats mounted in a vehicle body of the utility vehicle, and an extendable cargo bed positioned behind the seats. The cargo bed includes a bottom wall member having an extended region which is extended forward relative to a cargo accommodating space in an unextended state of the cargo bed. The plural rows of seats include a rear seat having a rear seat seating portion which is rotatably provided on the extended region of the bottom wall member such that the rear seat seating portion is rotatable forward to an upright position. The rear seat seating portion has a bottom plate provided integrally with a bottom surface thereof. In a state where the rear seat seating portion is rotated forward and is in the upright position, the bottom plate of the rear seat seating portion defines a front wall member of the cargo bed.

Abstract: A motorcycle rear fender assembly includes a rear fender mounted on a vehicle frame structure above a vehicle rear wheel, which fender is divided, in a forward and rearward direction, into three components, including an anterior rear fender subassembly forming a front portion of the rear fender, an intermediate rear fender subassembly forming an intermediate portion of the rear fender, and a posterior rear fender subassembly forming a rear portion of the rear fender.