摘要:
A mobile communication terminal includes: a transmission power controlling unit for performing transmission power control such that the sum of channel transmission powers or the sum of the ratios of the channel transmission powers to threshold values of the corresponding channels is a predetermined target value; an average transmission power calculating unit for calculating the average value of the sum of the channel transmission powers in a set monitoring period or the average value of the sum of the ratios of the channel transmission powers in the set monitoring period to the threshold values of the corresponding channels; and a transmission power suppressing unit for performing reduction control of the transmission powers such that these average values in a set control period are each equal to or less than the threshold value.
摘要:
An object of the present invention is to provide a simple way of measuring the local average absorbed power of a radio device having a plurality of antennas. A local average absorbed power measuring method of the present invention has an individual measurement step and a calculation step. In the calculation step, local average absorbed power candidates are obtained while weights are being varied. In a local average absorbed power candidate calculation sub-step, the absorbed power distribution in three-dimensional space is calculated from the combined electric field or combined magnetic field obtained in the combination sub-step, and a local average absorbed power candidate is obtained. In a local average absorbed power selection step, the highest one of the local average absorbed power candidates is specified.
摘要:
A mobile communication terminal includes: a transmission power controlling unit for performing transmission power control such that the sum of channel transmission powers or the sum of the ratios of the channel transmission powers to threshold values of the corresponding channels is a predetermined target value; an average transmission power calculating unit for calculating the average value of the sum of the channel transmission powers in a set monitoring period or the average value of the sum of the ratios of the channel transmission powers in the set monitoring period to the threshold values of the corresponding channels; and a transmission power suppressing unit for performing reduction control of the transmission powers such that these average values in a set control period are each equal to or less than the threshold value.
摘要:
A disclosed specific absorption rate measurement system according to an embodiment of the present invention measures a specific absorption rate of electromagnetic waves from a radiating source absorbed in a dielectric medium. The system includes a measurement portion that measures a first electric field vector on an observation surface which is a two-dimensional surface in the dielectric medium; an electric field calculation portion that calculates a second electric field vector in a point excluded from the observation surface in accordance with electric field components of the first electric field vector measured on the observation surface, the electric field components being parallel to the observation surface; and a calculation portion that calculates the specific absorption rate from the calculated second electric field vector.
摘要:
A disclosed specific absorption rate measurement system according to an embodiment of the present invention measures a specific absorption rate of electromagnetic waves from a radiating source absorbed in a dielectric medium. The system includes a measurement portion that measures a first electric field vector on an observation surface which is a two-dimensional surface in the dielectric medium; an electric field calculation portion that calculates a second electric field vector in a point excluded from the observation surface in accordance with electric field components of the first electric field vector measured on the observation surface, the electric field components being parallel to the observation surface; and a calculation portion that calculates the specific absorption rate from the calculated second electric field vector.
摘要:
An object of the present invention is to provide a simple way of measuring the local average absorbed power of a radio device having a plurality of antennas. A local average absorbed power measuring method of the present invention has an individual measurement step and a calculation step. In the individual measurement step, the amplitude and phase of the electric field or magnetic field of each one of the plurality of antennas are measured. In the calculation step, local average absorbed power candidates are obtained while weights are being varied. More specifically, in a combination sub-step, given weights are applied to the amplitudes and phases of the electric fields or magnetic fields of the individual antennas, obtained in the individual measurement step, and the results are combined. In a local average absorbed power candidate calculation sub-step, the absorbed power distribution in three-dimensional space is calculated from the combined electric field or combined magnetic field obtained in the combination sub-step, and a local average absorbed power candidate is obtained. In a local average absorbed power selection step, the highest one of the local average absorbed power candidates is specified as the local average absorbed power of the radio device.
摘要:
A mail server extracts a character unregistered in a portable terminal from received mail data and affixes the font data of the character concerned to the mail data or inserts a reading tag indicating the reading (pronunciation) of the character concerned into the mail data. The portable terminal additionally registers the font data affixed to the mail data into a font database before the received mail data are displayed. Furthermore, in the display processing of the mail data, a character for which the corresponding font data is unregistered is replaced by a no-font symbol and then displayed. Furthermore, the font of each character constituting the reading tag is read out and this font is displayed subsequently to the no-font symbol.
摘要:
A specific absorption rate measuring apparatus including a probe configured to measure, in a two-dimensional plane, the amplitude and the phase of an electric or magnetic field generated in a phantom of which electrical properties similar to a human body tissues; an electric and/or magnetic field estimation unit configured to estimate a three-dimensional electric field distribution to be produced from a wave source defined by the two-dimensional electric and magnetic fields at a measuring point, based on the measurement results of the probe; and a specific absorption rate estimation unit configured to estimate a three-dimensional distribution of specific absorption rate based on the estimation result of the electric field estimation unit.
摘要:
A specific absorption rate measuring system, a method thereof, and a biological tissue equivalent phantom unit are disclosed. The biological tissue equivalent phantom unit to be used by the specific absorption rate measuring system for evaluating absorption of electromagnetic wave energy includes a biological tissue equivalent phantom for absorbing an electromagnetic wave; two or more electro-optical crystals that are arranged at two or more measurement points in the biological tissue equivalent phantom, the electro-optical crystals having a dielectric constant that is approximately equal to that of the biological tissue equivalent phantom; and two or more optical fibers laid in the biological tissue equivalent phantom for optically connecting each of the electro-optical crystals to an external destination. The specific absorption rate measuring system for evaluating absorption of the electromagnetic wave energy using the biological tissue equivalent phantom unit includes a luminous source for irradiating a light; a polarization regulator for adjusting a polarization state of the light that is output by the luminous source; an optical-path switcher for providing the polarization-adjusted light to each of the electro-optical crystals one by one; and a specific absorption rate measuring unit for detecting the light reflected from the electro-optical crystal, and for measuring an absorption rate.
摘要:
The transmission power is decreased in an appropriate manner, while suppressing the deterioration of the line quality to the minimum. A mobile communication terminal 1 controls the transmission power in response to a request given from a base transceiver station 2. When an average transmission power Wa that is an average value of the transmission power in a monitoring period Ta is smaller than a threshold value TH, mobile communication terminal 1 continuously controls the transmission power in response to the request given by the base transceiver station 2. When the average transmission power Wa in the monitoring period Ta is equal to or greater than the threshold value TH, the transmission power is controlled in a transmission power suppressing period Tb that follows the monitoring period Ta so that the average value of the transmission power becomes equal to or smaller than the threshold value in a control period Tc including the monitoring period Ta and the transmission power suppressing period Tb. The average value of the transmission power is thus decreased in the entire control period Tc.