Patent application number | Description | Published |
20090082030 | Wireless communication device and method of restraining dispersion of propagation environment index - A wireless communication device capable of restraining dispersion of a propagation environment index and thereby improving throughput. A reception controller receives a pilot signal, measures a propagation environment and detects a phase change of the pilot signal. A moving average processor obtains a moving average of propagation environment values. An index function setter generates a propagation environment index function indicative of the correspondence between the propagation environment value and a propagation environment index which is a propagation environment quality index. When the detected phase change is greater than a threshold, a slope corrector corrects the slope of the propagation environment index function by using the moving average as a reference point, and a propagation environment index transmitter obtains a propagation environment index corresponding to the measured propagation environment value by using the propagation environment index function whose slope has been corrected, and transmits the obtained index to a base station. | 03-26-2009 |
20100045529 | Antenna Positioning Method And Antenna Mounting Device For Communication Device, And Antenna Device - In an antenna positioning method for a communication device that performs communication using a plurality of antennas positioned on a straight line, the method has a first step of measuring radiation pattern characteristics of each antenna, a second step of detecting a direction in which fluctuation of the radiation pattern characteristics of each antenna is large, and a third step of positioning each antenna in the communication device so that the direction in which the characteristic fluctuation is large matches the straight line direction. | 02-25-2010 |
20100098137 | DETECTION DEVICE OF A SPREADING CODE AND A TIMING, AND A METHOD THEREOF - An A/D converted and inputted signal is stored in a memory. A sliding correlator sequentially reads the signal stored in the memory and despreads this signal. A despreading timing is adjusted and then the candidate for a despreading code is outputted from a code generation circuit. The despreading code outputted at a predetermined timing is used for obtaining a correlation value of signals outputted from the memory, using the sliding correlator. Thus, by storing signals in the memory, fluctuation of a correlation value caused by fading does not occur while specifying a code or detecting a despreading timing. | 04-22-2010 |
Patent application number | Description | Published |
20080252156 | ROTATING ELECTRIC MACHINE AND ROTOR THEREOF - A rotor of a rotating electric machine includes a cylindrical rotor core, a plurality of coil slots provided on an outer periphery of the rotor core along a rotor axis direction, rotor coils disposed in the coil slots by laminating a plurality of field conductors through an insulation material, a rotor wedge disposed at an opening end portion of the coil slot so as to support the rotor coil, a coil ventilation duct formed in the coil slot so as to pass through the rotor coils, the rotor wedge and the insulation material, and sub-slots provided at bottom portions of the coil slots so as to be communicated with rotor core ends and the coil ventilation ducts. In such a rotor of a rotating electric machine, the coil slot, the sub-slots and the coil ventilation duct constitute a cooling gas channel for distributing a cooling gas to thereby cool the rotor coils. A depth in a diameter direction of each sub-slot from the rotor coil end to a nearest coil ventilation duct is larger than a depth of the sub-slot at a portion near a center of the rotor core. | 10-16-2008 |
20090320600 | FLAW DETECTION TESTING METHOD - There is provided a flaw detection testing method applied to a slot dovetail portion of a turbine generator rotor shaft. The flaw detection testing method includes an angle determining step of determining a slot angle of the slot dovetail portion using a variable-angle ultrasonic probe, a flaw detection performing step of, on the basis of a determination result in the angle determining step, using an angle ultrasonic probe or a phased array probe to perform flaw detection to detect a flaw in the slot dovetail portion, and a flaw depth measuring step of, when the flaw is detected in the flaw detection performing step, using an angle ultrasonic probe to measure a depth of the flaw from a surface of the slot dovetail portion. | 12-31-2009 |
20130192025 | HIGH PRESSURE BUSHING OF ROTATING ELECTRICAL MACHINE AND ROTATING ELECTRICAL MACHINE - According to one embodiment, there is provided a high pressure bushing arranged through by penetrating a stator frame of a rotating electrical machine in which a cooling gas is sealed. At least a communicating hole is provided in the hollow connecting conductor and at least a reflux hole is provided in the gas circulation pipe, such that the cooling gas flows in both of the first gap and the second gap, passes through an inner side of the gas circulation pipe, and is discharged to the machine inner side. | 08-01-2013 |