Abstract: A penalty is introduced to the channel with less noise when the difference in the transmitted signal quality among channels is reduced; therefore, an equalization apparatus according to an exemplary aspect of the disclosure includes a processing means for performing a process associated with a signal using a transfer function with a coefficient, the signal propagating through each of a plurality of channels; and a coefficient generating means for generating the coefficient based on channel quality information on each of the plurality of channels.

Abstract: An object is to actively control a phase of electromagnetic wave with high efficiency. A phase control device includes a phase control lens and a control circuit. The phase control lens includes metamaterial boards arranged in a first direction and separated from each other. Each metamaterial board shifts a phase of electromagnetic wave passing therethrough. The control circuit controls admittance distribution in a plane perpendicular to the first direction of each metamaterial board.

Abstract: It is difficult to carry out automatic bias control to an optical modulator without a dither signal with a simple configuration, therefore, an optical transmitter comprising the controller configured to adjust an adjusted bias voltage based on the coupled optical signal, the adjusted bias voltage being one of a first bias voltage applied to the first optical modulator, a second bias voltage applied to the second optical modulator and a third bias voltage applied to the third optical modulator and maintain a value of bias voltages other than the adjusted voltage in the first bias voltage, the second bias voltage and the third voltage.

Abstract: An object of the present disclosure is to provide a data processing device, a data processing method and a non-transitory computer readable medium capable of suppressing impairments of signal transmission. A data processing device includes at least one memory configured to store instructions and at least one processor configured to execute the instructions to: obtain input information bits; and generate a first output information bits and a second output information bits based on the input information bits, wherein the first output information bits correspond to constellation points of a constellation diagram on a first axis and the second output information bits correspond to constellation points of the constellation diagram on a second axis, and a probability of the constellation points on at least one of the first or the second axis follows a distribution, the distribution having a plurality of local maxima.

Abstract: A phase control device (100) includes a two-dimensional array of three-dimensional units (10) and is configured to control a phase of an electromagnetic wave passing through the three-dimensional units (10). Each three-dimensional unit (10) includes a substrate (12) and an active control layer (11). The active control layer (11) includes metal patches (111) and (112), and a modulator (113) disposed between the two metal patches and connected to each of the two metal patches. The substrate (12) includes at least one bias line (114 or 116) connected to one of the two metal patches and extending in a direction perpendicular to a direction of an electric field of the electromagnetic wave.

Abstract: A system, method and program product for implementing a machine learning platform that processes a data map having feature and operational information. A system is disclosed that includes an interpretable machine learning model that generates a function in response to an inputted data map, wherein the data map includes feature data and operational data over a region of interest, and wherein the function relates a set of predictive variables to one or more response variables; an integration/interpolation system that generates the data map from a set of disparate data sources; and an analysis system that evaluates the function to predict outcomes at unique points in the region of interest.

Abstract: A first earbud configured to communicate with a user media device and a second earbud. The first earbud includes a battery, a battery monitor configured to determine a power level of the battery, a mode controller. The mode controller is configured to receive a first power level value from the battery monitor and a second power level value from the second earbud and make a determination that the first earbud is operating in a primary mode in which the first earbud receives audio data from the user media device and transmits the received audio data to the second earbud. The mode controller is further configured, in response to the determination that the first earbud is operating in the primary mode, switch the first earbud from the primary mode to a secondary mode based on at least one of the first power level and the second power level.

Abstract: To carry out automatic bias control to an optical modulator without a dither signal with reduced cost, an optical transmitter comprises a light source configured to output a light, an optical first modulator configured to modulate the light and output a first modulated optical signal, a DC component detector configured to detect a DC component of the first modulated optical signal and a controller configured to apply a first specific bias voltage identified based on the DC component to the optical first modulator.

Abstract: An object is to advantageously control a phase of an electromagnetic wave with high efficiency at target operational frequency band. A phase control device (10) comprising a two-dimensional array of three-dimensional units (101) and configured to shift a phase of an electromagnetic wave passing through the three-dimensional units (101). The two nearest three-dimensional units (101) having same phase shift coverage are configured such that the distance difference from phase center of the phase control device (10) to the units (101) is a wavelength of a reference frequency fk, and the reference frequency fk is higher than center frequency fc of operational frequency band and not higher than the highest frequency fh of the operational frequency band.

Abstract: A method of geosteering in a wellbore construction process uses an earth model that defines boundaries between formation layers and petrophysical properties of the formation layers in a subterranean formation. Sensor measurements related to the wellbore construction process are inputted to the earth model. An estimate is obtained for a relative geometrical and geological placement of the well path with respect to a geological objective using a trained stochastic clustering and pattern matching agent. An output action based on the sensor measurement for influencing a future profile of the well path with respect to the estimate.

Abstract: An object is to actively control a phase of electromagnetic wave with high efficiency. A phase control device includes a phase control lens and a control circuit. The phase control lens includes metamaterial boards arranged in a first direction and separated from each other. Each metamaterial board shifts a phase of electromagnetic wave passing therethrough. The control circuit controls admittance distribution in a plane perpendicular to the first direction of each metamaterial board.

Abstract: A phase control device (100) includes a two-dimensional array of three-dimensional units (10) and is configured to control a phase of an electromagnetic wave passing through the three-dimensional units (10). Each three-dimensional unit (10) includes a substrate (12) and an active control layer (11). The active control layer (11) includes metal patches (111) and (112), and a modulator (113) disposed between the two metal patches and connected to each of the two metal patches. The substrate (12) includes at least one bias line (114 or 116) connected to one of the two metal patches and extending in a direction perpendicular to a direction of an electric field of the electromagnetic wave.

Abstract: The present invention provides a phase control plate including n layers (n?4) of overlapping admittance sheets (10-1 to 10-6) each of which includes a plurality of plane unit cells, in which an admittance of a first plane unit cell included in an admittance sheet in a layer a (1?a?n) and an admittance of a second plane unit cell being included in an admittance sheet in a layer b (1?b?n and b?a) and overlapping the first plane unit cell are different from each other.

Abstract: An object is to advantageously control a phase of an electromagnetic wave with high efficiency in wide bandwidth. A phase control device includes a two dimensional array of a plurality of cube units that are configured to shift a phase of an electromagnetic wave passing through the cube units. The cube units include at least two basic structures including different number of stacked metal layers separated from each other.

Abstract: A method of geosteering in a wellbore construction process uses an earth model that defines boundaries between formation layers and petrophysical properties of the formation layers in a subterranean formation. Sensor measurements related to the wellbore construction process are inputted to the earth model. An estimate is obtained for a relative geometrical and geological placement of the well path with respect to a geological objective using a trained stochastic clustering and pattern matching agent. An output action based on the sensor measurement for influencing a future profile of the well path with respect to the estimate.

Abstract: An object is to advantageously control a phase of an electromagnetic wave with high efficiency at target operational frequency band. A phase control device (10) comprising a two-dimensional array of three-dimensional units (101) and configured to shift a phase of an electromagnetic wave passing through the three-dimensional units (101). The two nearest three-dimensional units (101) having same phase shift coverage are configured such that the distance difference from phase center of the phase control device (10) to the units (101) is a wavelength of a reference frequency fk, and the reference frequency fk is higher than center frequency fc of operational frequency band and not higher than the highest frequency fh of the operational frequency band.

Abstract: The present invention provides a polarization control plate including n layers (n?4) of overlapping admittance sheets (10-1 to 10-6) each of which includes a plurality of plane unit cells, in which an admittance of a first plane unit cell included in an admittance sheet in a layer a (1?a?n) and an admittance of a second plane unit cell being included in an admittance sheet in a layer b (1?b?n and b?a) and overlapping the first plane unit cell are different from each other, and an admittance of the plane unit cell in an x direction and an admittance of the plane unit cell in a y direction are different from each other.

Abstract: An object is to advantageously control a phase of an electromagnetic wave with high efficiency in wide bandwidth. A phase control device includes a two dimensional array of a plurality of cube units that are configured to shift a phase of an electromagnetic wave passing through the cube units. The cube units include at least two basic structures including different number of stacked metal layers separated from each other.

Abstract: The present invention provides a phase control plate including n layers (n?4) of overlapping admittance sheets (10-1 to 10-6) each of which includes a plurality of plane unit cells, in which an admittance of a first plane unit cell included in an admittance sheet in a layer a (1?a?n) and an admittance of a second plane unit cell being included in an admittance sheet in a layer b (1?b?n and b?a) and overlapping the first plane unit cell are different from each other.

Abstract: The present invention provides a polarization control plate including n layers (n?4) of overlapping admittance sheets (10-1 to 10-6) each of which includes a plurality of plane unit cells, in which an admittance of a first plane unit cell included in an admittance sheet in a layer a (1?a?n) and an admittance of a second plane unit cell being included in an admittance sheet in a layer b (1?b?n and b?a) and overlapping the first plane unit cell are different from each other, and an admittance of the plane unit cell in an x direction and an admittance of the plane unit cell in a y direction are different from each other.