Patent application number | Description | Published |
20080258730 | NUCLEAR MAGNETIC RESONANCE (NMR) PROBE - There is provided a nuclear magnetic resonance probe in which the loss caused by a high frequency cable between a probe coil and a preamplifier is reduced and the sensitivity of an NMR signal is improved. A changeover switch for NMR probe is divided into a switch part including switch elements and a filter part for filtering a switch control signal and an RF transmission signal. The switch part is disposed in a probe body inserted in a magnet of the probe. The filter part is disposed near a measurement apparatus located outside the probe. As for the switch part, a section structure of thickness and width is reduced in conformity with a narrow and slender shape of the probe body. The length of a high frequency cable between the probe coil and the preamplifier is shortened remarkably, and consequently the loss can be reduced. | 10-23-2008 |
20080284470 | Direct Digital Synthesizer and Nuclear Magnetic Resonance Instrument Using the Same - A DDS (direct digital synthesizer) remarkably increased in the number of frequencies which can be output while maintaining the phase coherency, and an NMR instrument using such a DDS are provided. A DDS including phase accumulators and a phase-to-amplitude modulator is provided with a plurality of phase accumulators operating with fixed phase implements which are equal to powers of 2, a controller for outputting each bit of a frequency tuning word as control data, a plurality of switches for outputting an output of an associated one of the phase accumulators when an associated one of the control data supplied from the controller is 1 and outputting 0 when the associated one of the control data is 0, and an adder for adding up outputs of the switches. | 11-20-2008 |
20110184672 | INSULATION DIAGNOSTIC UNIT AND ALGORITHM FOR ELECTRIC MACHINE, AND EQUIPMENT INCLUDING THE DIAGNOSTIC UNIT - Partial discharge occurring in a continuously operated electric machine is monitored all the time. Even when the electric machine is mounted in mobility equipment, the partial discharge is monitored all the time. An insulation diagnostic unit includes: an instrument that performs spectrum analysis on an output of a sensor disposed near the electric machine; a data table in which an output of a load detection method for the electric machine and an output of the spectrum analysis instrument are recorded; a first routine that obtains a correlation coefficient on the basis of plural data items concerning the magnitudes of a spectrum relevant to a specific frequency, which is obtained by the spectrum analysis instrument, out of data items recorded in the data table, and plural data items of a load obtained at the times of measurement of the plural data items; and a second routine that classifies the noted spectrum relevant to the specific frequency into a spectrum of an environmental electromagnetic wave or a spectrum of an electromagnetic wave due to partial discharge from the electric machine on the basis of the value of the correlation coefficient obtained by the first routine. | 07-28-2011 |
Patent application number | Description | Published |
20100041392 | DATA TRANSMISSION CONTROL METHOD AND BASE TRANSCEIVER STATION - A data transmission control method in a radio communication system with a mobile station having a number of antennas and a base transceiver station having a number of antennas, the data transmission control method includes detecting a failure of radio equipment connected to each of the antennas of the base transceiver station or to each of specified groups of the antennas to perform radio communication processing for a connected antenna, and outputting failure information corresponding to the detected failure. The data transmission control method includes determining a failed antenna based on the failure information, and exercising control so that generation processing of transmission code words corresponding to the failed antenna is not performed. | 02-18-2010 |
20100118751 | RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD - A radio communication apparatus for performing radio communication, including: a first interface conversion unit which extracts a first signal and a second signal multiplexed and input, and corresponding to two different formats, and combines the extracted first and second signal; and a common amplifier which is shared by the first and second signal by amplifying the combined first and second signal, wherein a signal output from the common amplifier is transmitted. | 05-13-2010 |
20110065396 | RADIO BASE TRANSCEIVER STATION AND POWER SUPPLYING METHOD - A radio base station includes a radio equipment to which a power is supplied from a power source which supplies the power from a battery and a power source unit, and a radio control device which controls the radio equipment, and wherein the radio base transceiver station performs control for changing an operating band of the radio equipment according to switching of a power supply source to and from the power source unit and the battery in the radio equipment. | 03-17-2011 |
20110221524 | RADIO APPARATUS, DISTORTION CORRECTION DEVICE, AND DISTORTION CORRECTION METHOD - When a distortion correction coefficient, which is calculated according to a signal input to a power amplifier and a signal output from the power amplifier, is larger than a first threshold, a distortion correction coefficient corresponding to the input signal is updated to the first threshold. When the calculated distortion correction coefficient is equal to or smaller than the first threshold, the distortion correction coefficient corresponding to the input signal is updated to the calculated distortion correction coefficient. | 09-15-2011 |
20110221525 | RADIO APPARATUS, DISTORTION CORRECTION DEVICE, AND DISTORTION CORRECTION METHOD - An error between the power of an input signal, which is input to a power amplifier, and the power of an output signal, which is output from the power amplifier, is calculated. The calculated error is normalized according to the power of the input signal or the power of the output signal. A distortion correction coefficient, which is stored in a predetermined storage unit in association with the power of the input signal, is updated using the normalized error. | 09-15-2011 |
20110227643 | DISTORTION COMPENSATING APPARATUS, AMPLIFYING APPARATUS, TRANSMITTING APPARATUS, AND DISTORTION COMPENSATING METHOD - A distortion compensating apparatus that compensates signal distortion caused by an amplifier includes a distortion compensating process unit that using a distortion compensation coefficient, compensates distortion of an input signal; a memory unit storing therein the distortion compensation coefficient; and an address generating unit that generates a first address that is based on electrical power of the input signal and is for acquiring the distortion compensation coefficient from the memory unit, and a second address that is based on any one among the electrical power, phase of the input signal and amplitude of the input signal, is for acquiring the distortion compensation coefficient from the memory unit, and is normalized in a normalizing range determined according to the electrical power of the input signal. The distortion compensating process unit acquires the distortion compensation coefficient from the memory unit, based on the first and the second addresses to compensate the distortion. | 09-22-2011 |
20110227644 | DISTORTION COMPENSATING APPARATUS, AMPLIFYING APPARATUS, TRANSMITTING APPARATUS, AND DISTORTION COMPENSATING METHOD - A distortion compensating apparatus that compensates signal distortion caused by an amplifier includes a distortion compensating process unit that using a distortion compensation coefficient, compensates distortion of an input signal; a memory unit that stores the distortion compensation coefficient; and an address generating unit that generates a first address that is based on electrical power of the input signal and for acquiring the distortion compensation coefficient from the memory unit and that generates a second address that is based on a phase of the input signal and for acquiring the distortion compensation coefficient from the memory unit. The distortion compensating process unit acquires the distortion compensation coefficient from the memory unit based on the first and the second addresses to compensate the distortion. | 09-22-2011 |
20110228825 | BASE STATION APPARATUS AND COMMUNICATION METHOD - A base station apparatus performing a shared channel communication with a plurality of terminals includes a signal processor configured to employ, when the base station apparatus changes a value of a parameter from an old value to a new value, a communication or modulation scheme in a communication with one terminal of the plurality of terminals. The parameter is for determining transmission power for the communication with the one terminal. The communication or modulation scheme allows the communication with the one terminal to be kept while at least a time period from a time when the base station apparatus transmits the new value until a time when the one terminal receives and recognizes the new value. | 09-22-2011 |
20110228831 | CONTROLLING APPARATUS AND CONTROLLING METHOD OF A WIRELESS DEVICE, AND BASE STATION APPARATUS - A controlling apparatus installed in a base station with a plurality of wireless devices, for controlling operations of the plurality of wireless devices. The controlling apparatus includes an interface device for transmitting and receiving data with at least one of the plurality of wireless devices according to timing provided by an internal clock, a measurement device for measuring the delay times corresponding to the transmission and the reception of the data between the interface device and the plurality of wireless devices, and a correction device for correcting a difference of the delay times corresponding to the plurality of wireless devices by changing the internal clock. | 09-22-2011 |
20120039415 | DISTORTION COMPENSATION AMPLIFIER DEVICE AND DISTORTION COMPENSATION METHOD - A distortion compensation amplifier device for compensating for distortion of a transmission signal generated by amplifying the transmission signal and for outputting the compensated transmission signal. The distortion compensation amplifier includes a storage unit that stores therein distortion compensation coefficients; a processor that performs distortion compensation processing on the transmission signal by using one of the distortion compensation coefficients; and an amplifier that amplifies the transmission signal that has been subjected to the distortion compensation processing; wherein the processor calculates an average value of the distortion compensation coefficients stored in the storage unit, and calculates the distortion compensation coefficient on the basis of the transmission signal, and the average value. | 02-16-2012 |
20140003351 | Radio Communication Apparatus, Radio Communication System and Radio Communication Method | 01-02-2014 |
20140003413 | Radio Communication Apparatus, Radio Communication System and Radio Communication Method | 01-02-2014 |
Patent application number | Description | Published |
20100209167 | PRINTING APPARATUS AND PRINTING CONTROL METHOD - A printing method of printing an image corresponding to one frame by using inks of a plurality of colors applied to an ink ribbon allows a printing apparatus to print one image on continuous paper by using inks corresponding to a plurality of ink surfaces. When printing one print image by using a plurality of ink surfaces on an ink ribbon, the printing apparatus sets an area in the print image to be printed by one ink surface on the ink ribbon, by dividing the print image. The printing apparatus then prints one print image by using a plurality of ink surfaces on the ink ribbon based on the set area. | 08-19-2010 |
20120154505 | THERMAL PRINTER AND OVERCOAT PRINTING METHOD - A thermal printer which transfers ink to a printing medium to print an image, comprises a transfer unit configured to transfer dye ink to the printing medium to print an image, and transfer an overcoat onto the entire image to protect the image; and a control unit configured to control transfer of the overcoat by the transfer unit. The control unit forms a region where no overcoat is transferred to embed information in the overcoat, and forms, in the vicinity of the region where no overcoat is transferred, a pattern for hiding the information, to avoid visual perception of the information by a difference in gloss between the region where no overcoat is transferred and a region where the overcoat is transferred. | 06-21-2012 |
20120200572 | TARGET SELECTION APPARATUS THAT DETECTS TARGET, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM - A target selection apparatus capable of quickly carrying out selection processing when selecting a desired target according to a target detection result and carrying out image processing on the target. An image corresponding to image data is displayed on a display unit. A drawing line is drawn on the image displayed on the display unit. A target included in the image data is selected based on the drawing line. In response to the drawing line becoming a closed curve, the selected target is determined. | 08-09-2012 |
20150188229 | WIRELESS COMMUNICATION DEVICE AND ELECTRONIC APPARATUS - A wireless communication device includes an antenna unit including an antenna pattern; a magnetic member arranged over the antenna unit; and a device that acts as a non-contact type integrated circuit, wherein a ratio of an area of the magnetic member to an area of a region including an outermost periphery of the antenna pattern is 90% or more, and wherein a resonant frequency of the wireless communication device has a deviation from a target resonant frequency falls within a range of −1.720% to +4.334%. | 07-02-2015 |
20150261982 | COMMUNICATION APPARATUS AND METHOD FOR CONTROLLING THE SAME - There is provided a communication apparatus comprising an antenna. A communication unit is able to use external power that is generated by receiving a signal from an external apparatus via the antenna, thereby transmitting a response to the signal that is received from the external apparatus to the external apparatus. A deactivation unit deactivates, in a case where the external power is generated by receiving the signal from the external apparatus via the antenna, supply of the external power to the communication unit. A control unit performs control so as to interrupt deactivation of supply of the external power to the communication unit by the deactivation unit. | 09-17-2015 |
20160070936 | ELECTRONIC APPARATUS - An electronic apparatus includes an authentication unit that executes an authentication process for authenticating a battery connected to the electronic apparatus, a holding unit that holds a value representing a result of the authentication process, wherein the value held by the holding unit is deleted in a case where the battery is removed from the electronic apparatus, or in a case where a voltage of the battery is equal to or less than a predetermined value, and a control unit that performs control to determine whether to cause the authentication unit to execute the authentication process according to the value held by the holding unit. | 03-10-2016 |
20160073363 | COMMUNICATION APPARATUS CAPABLE OF PERFORMING WIRELESS COMMUNICATION VIA ANTENNA AND CONTROL METHOD THEREOF - A communication apparatus comprises a close proximity wireless communication unit which is able to perform close proximity wireless communication with an external apparatus; a power control unit which starts control of power supply of the communication apparatus when the close proximity wireless communication unit receives electromagnetic waves from the external apparatus; and a control unit which executes shutdown processing for reducing power to each block controlled by the power control unit, wherein when the shutdown processing is executed, the control unit disables the close proximity wireless communication unit before start of the shutdown processing. | 03-10-2016 |
Patent application number | Description | Published |
20100295489 | MOTOR DRIVE CONTROL APPARATUS - There is provided a motor drive control apparatus that includes a resistor, which directly or indirectly detects a driving current supplied to a motor and generates a voltage corresponding to the driving current, converts, with an AD converter, the voltage corresponding to the motor driving current detected by the resistor into a numerical value, and reflects the motor driving current converted into the numerical value on driving control for the motor, wherein a plurality of the resistors is connected in series to form a resistor string, and voltage between arbitrary two points of the resistor string is AD-converted. | 11-25-2010 |
20110031962 | MAGNETIC POLE POSITION DETECTING DEVICE AND METHOD - A magnetic pole position detecting device that can correctly acquire a magnetic pole position even if two magnetic sensors are arranged at an arbitrary interval receives sensor outputs “a” and “b” of two magnetic sensors arranged at a predetermined interval L along a magnetic pole arraying direction motor and a phase difference φ between the two sensor outputs “a” and “b”. When sin φ>δ, the device divides a·sin φ by b−a·cos φ to calculate tan θ and outputs a magnetic pole position θ=tan | 02-10-2011 |
20130297897 | CONTROL APPARATUS, CONTROL SYSTEM, AND COMMUNICATION METHOD - In a control apparatus for performing serial data communication, a transmitting section includes a memory to store data for other control apparatuses and a transmission control section to generate a frame containing the data and memory storage information indicating a storage position of the data in buffer memories of the receiving sections of the other control apparatuses. A receiving section includes a reception control section to extract the memory storage information and the data from the frame, a buffer memory to store the extracted data, and a data-storage processing section to store the extracted data in an address of the buffer memory designated by the memory storage information. The memory storage information is set for each of the control apparatuses. A control section reads out the data from an address of the buffer memory for each of the other control apparatuses. | 11-07-2013 |
20150048772 | MOTOR DRIVE DEVICE - A motor drive device in embodiments includes: a motor drive unit that generates a current for driving a motor on a basis of a position command and a position detection value of the motor; a motor-coil ambient-temperature estimation unit that calculates a motor-coil ambient-temperature estimation value by correcting an output value of a temperature sensor provided in a peripheral portion of a motor coil of the motor by using a filter including both a phase-lead characteristic and a low-pass characteristic; a motor-coil increased-temperature estimation unit | 02-19-2015 |
Patent application number | Description | Published |
20130200835 | MOTOR CONTROL DEVICE - To improve estimation accuracy of a frequency and an attenuation coefficient of residual vibration in which a plurality of frequencies are superimposed, a motor control device includes a vibration-damping-control setting unit | 08-08-2013 |
20130214718 | MOTOR CONTROL DEVICE - A motor control device includes a feedback filter that has filter characteristics that a frequency response gain is substantially one at frequencies equal to or lower than a filter cutoff frequency, a frequency response gain decreases with increase in frequency in a range from the filter cutoff frequency ωfL to a filter upper limit frequency ωfH higher than the filter cutoff frequency ωfL, and a frequency response gain is substantially constant at frequencies equal to or higher than the filter upper limit frequency ωfH, and performs computing to apply the filter characteristics to a feedback transfer function, wherein a control-constant set unit sets a speed gain Kv and at least one of the filter cutoff frequency ωfL and the filter upper limit frequency ωfH to reduce a ratio of the filter upper limit frequency ωfH to the filter cutoff frequency ωfL with increase in the speed gain Kv. | 08-22-2013 |
20140077746 | MOTOR CONTROL DEVICE - A motor control device includes an operation determination unit that determines whether a motor is in an operating state or in a stopped state based on an operation command signal or an operation signal and an amplitude estimation unit that, based on a determination result of the operation determination unit, sequentially estimates a vibration amplitude value from a control state quantity of a feedback control unit or a current control unit separately for a case where the motor is operated and a case where the motor is stopped and outputs the vibration amplitude value. A function of outputting an amplitude of a high-frequency vibration that occurs in a mechanical device including a control system as information useful for estimating an occurrence factor of the vibration is provided. | 03-20-2014 |
20150073599 | CONTROL DEVICE AND CONTROL METHOD - Provided is a control device that includes a plurality of communication units that receive data from measurement control devices; a control unit that calculates an operation signal for controlling a controlled device on the basis of the data from the communication units and that outputs the operation signal to the controlled device; a storage unit that stores the data; a first monitoring unit and a second monitoring unit that perform a calculation on the basis of the data to calculate a calculation value, that determine whether the calculation value satisfies a blocking condition, and that output a blocking signal when the calculation value satisfies the blocking condition; and a first blocking unit and a second blocking unit that block the operation signal to the controlled device upon receiving the blocking signal output from at least either one of the first monitoring unit and the second monitoring unit. | 03-12-2015 |
20150316621 | CIRCUIT FAULT DETECTION DEVICE - A circuit fault detection device includes: an interruption-signal generation unit that outputs an interruption signal for a drive circuit stopping driving of a drive target on a basis of the interruption signal; a pulse generation unit that includes an adjustment unit adjusting a time during which a pulse signal is in an OFF state and that generates the pulse signal; a signal synthesis unit that outputs a logical AND of the interruption signal and the pulse signal; a filter circuit that inputs, as an output, a signal obtained by delaying an output signal of the signal synthesis unit to the drive circuit; and a monitoring unit that determines whether a circuit fault has occurred on a basis of an output voltage of the filter circuit. | 11-05-2015 |