68results about How to "Suppress complexity" patented technology

An image display device includes: a first face; a laser light source device emitting laser light; and a diffractive optical element on which the laser light emitted from the laser light source device is incident, generating diffracted light from the incident laser light, and illuminating the first face with the diffracted light, the first face is provided at a position on which zero-order light emitted from the diffractive optical element is not incident, and an image is displayed by light via the first face.

The upper end of a static gas bearing member of a wafer side seal unit is connected to an edge section on the outgoing side of an exposure beam of a chamber in an air tight state via bellows, and the lower end surface is in a state forming a predetermined clearance with a wafer and a wafer holder. By this arrangement, the inside of the chamber is isolated from the outside. Accordingly, it becomes possible to maintain a vacuum environment in the periphery of the optical path of the exposure beam without arranging a vacuum chamber to house a wafer, a wafer holder, and a wafer stage, which allows the size of the entire exposure apparatus to be reduced, and also makes it easy to have access to the vicinity of the wafer stage.

A first semiconductor element portion for switching a first current includes a first channel surface having a first plane orientation. A first region of a semiconductor layer includes a first trench having the first channel surface. A first gate insulating film covers the first channel surface with a first thickness. A second semiconductor element portion for switching a second current smaller than the first current includes a second channel surface having a second plane orientation different from the first plane orientation. A second region of the semiconductor layer includes a second trench having the second channel surface. A second gate insulating film covers the second channel surface with a second thickness larger than the first thickness.

A printer controller outputs plural drive signals including respective series of drive pulses, the timing points of which are different from one another, to a head control unit side, and outputs a multiplexed signal resulting from multiplexing change signals corresponding to the respective drive signals to a head control unit side, and the head control unit includes a control signal demultiplexing unit which demultiplexes the multiplexed signal into the change signals corresponding to respective nozzle rows, and an actuator control unit which, on the basis of each of the demultiplexed change signals, selects one of the drive pulses included in one of the drive signal which corresponds to the demultiplexed change signal, and applies the selected drive pulse to a piezoelectric element included in one of the nozzle rows which corresponds to the drive signal corresponding to the demultiplexed change signal.

The invention discloses a fixed-wing unmanned aerial vehicle landing control method based on self-adaptive dynamic inverse. The method comprises: establishing an unmanned aerial vehicle nonlinear model under wind disturbance; designing an inner loop control law based on an adaptive dynamic inverse method according to an inner loop differential equation of the unmanned aerial vehicle; designing a track angle loop control law based on a nonlinear dynamic inverse method; designing an ideal relative trajectory of unmanned aerial vehicle landing; designing a relative trajectory loop control law based on a nonlinear dynamic inverse method; and correcting the track inclination angle instruction of the tail end guide section according to the estimated value of the ideal landing point. Parameter uncertainty of the unmanned aerial vehicle model can be effectively suppressed, complex nonlinearity and control coupling of the model are overcome, interference of complex wind disturbance such as shipwake flow on the unmanned aerial vehicle track is resisted, deck movement of a ship is rapidly tracked, and the ship landing precision and the ship landing success rate are effectively improved.

A range switching device includes: a range switching portion having an output shaft rotatably supported inside a housing and switchable to ranges corresponding to output shaft turning positions; a motor attached with its motor shaft spaced apart from a shaft center of the output shaft; a reducer mechanism linked to the motor and the range switching portion; and a control board controlling rotation of the motor. The reducer mechanism has a planetary gear reducer mechanism formed of a sun gear, planetary gears, an internal gear, and a carrier supporting the planetary gears, and a spur gear reducer mechanism formed of a pinion and a main gear linked to the pinion. The control board is installed oppositely to the output shaft and the motor.

A hydraulic control device of an automatic transmission is provided, which includes a hydraulic control circuit with a pressure reducing valve including a first friction element for achieving a first gear position and a second friction element for achieving a second gear position that produces a lower speed than the first gear position. The hydraulic control circuit further includes a switch valve formed with an input port which is inputted with the line pressure in a forward gear position range, and which is switched between a first state where the input port communicates with a first oil path communicating with the first friction element in a failure state of power distribution to the plurality of hydraulic control valves, and a second state where the input port communicates with the second friction element in the same power distribution failure state. The switch valve includes various control ports to control its function.

A vehicle learning system includes a first execution device mounted on a vehicle, a second execution device outside the vehicle, and a storage device. The storage device stores mapping data including data, which is learned by machine learning and defines mapping that receives input data based on a detection value of an in-vehicle sensor and outputs an output value. The first execution device and the second execution device execute, in cooperation with each other, an acquisition process of acquiring input data, a calculation process of calculating an output value with the input data as an input of the mapping, and a relationship evaluation process of evaluating a relationship between a predetermined variable different from a variable corresponding to the output value and accuracy of the output value. The first execution device executes at least the acquisition process, and the second execution device executes at least the relationship evaluation process.

The invention discloses a data communication method and communication equipment. The method comprises the steps that a data symbol, a first pilot frequency sequence and a second pilot frequency sequence sent by a sending end are received, the power of the first pilot frequency sequence is larger than that of the second pilot frequency sequence, the frequency domain position corresponding to a spectral line with the strongest power in received data is determined, and the spectral line with the strongest power is a spectral line corresponding to the first pilot frequency sequence; he frequency shift of the data received by the receiving end is determined according to the difference value between the frequency domain position corresponding to the strongest spectral line and the frequency domain position of the first pilot frequency sequence at the transmitting end, and frequency shift compensation is performed on the received data; And the phase noise of the data received by the receivingend is determined according to the values, which are not zero, in the first pilot frequency sequence and the second pilot frequency sequence, phase noise compensation is carried out on the received data, and decoding is performed to obtain data information corresponding to the data symbol sent by the sending end. Compared with an existing phase noise compensation scheme, the method has the capability of eliminating inherent interference and performing frequency offset compensation at the same time.

An inverter device of a rotating electrical machine drives a multiphase rotating electrical machine having the variable number of rotations using a switching element provided for each phase. An example of the inverter device of the rotating electrical machine includes: a frequency setting unit for determining and setting a carrier frequency of a carrier signal for use in driving the switching element for each phase depending on the state of each phase of the rotating electrical machine for each specified electrical angle obtained by equally dividing a cycle of an electrical angle; and a signal generation unit for generating a drive signal for drive of the switching element of each phase using the carrier signal of the carrier frequency set for each phase by the frequency setting unit. The carrier frequency of each phase is an integral multiple of the phase voltage frequency at the specified electrical angle.

A power supply apparatus includes a power supply antenna that supplies power from a power source to a power receiving apparatus, a controller that acquires a first value relating to charging information of the power receiving apparatus from the power supply apparatus, acquires a second value relating to charging information of the power receiving apparatus from another power supply apparatus, compares the first value to the second value, and causes the power supply apparatus to supply power to the power receiving apparatus based on the comparison of the first value to the second value.

Provided is a vehicle periphery monitoring device that can appropriately recognize a monitored subject that is present at a periphery of a vehicle and notify a driver, while suppressing computational amount and the amount of memory usage. In a case where a monitored subject W detected in a past captured image is not detected in a latest captured image (NO in FIG. 2B/STEP 7), an alert process unit 13 to 16 estimates whether or not the monitored subject W is present in a notification region D2 in a real space based on the past captured image (FIG. 2B/STEP11 to FIG. 2B/STEP 13 and FIG. 2B/STEP 15 to FIG. 2B/STEP 16) and notifies the driver when the monitored subject W is estimated to be present in the notification region D2 (FIG. 2B/STEP 14).

The invention relates to a burned area detection method based on short-wave infrared and thermal infrared data feature fusion. The method comprises the following steps: 1), obtaining Landsat-8 image data before and after a fire in a to-be-detected region, and carrying out the preprocessing of front and rear time-phase images; 2) respectively calculating a difference characteristic dMNBR of front and back time-phase MNBR indexes and a brightness temperature difference characteristic dBT of front and back time phases according to the preprocessed time-phase image; 3) fusing the index differencecharacteristics and the brightness temperature difference characteristics by using a fusion algorithm GTF based on gradient transfer and total variation minimization to generate a burned area grey-scale map; and 4) performing adaptive threshold segmentation on the burned area grey-scale map, generating a binary change detection map about the burned area and the non-burned area, and further realizing extraction of the burned area. Compared with the methods in the prior art, the method has the advantages of suppressing background interference, accurately and quickly extracting the burned area and the like.

A warehousing/shipping-operation support system selects, for a first article in a warehousing/shipping operation, by using acquired positional information of an operator, a sign closer to a position of the operator among signs in the vicinity of a storage location of the article, and the warehousing/shipping-operation support system selects, for a second and following articles, by using the storage-location information of the article whose warehousing/shipping has been completed as the positional information of the operator, a sign closer to the position of the operator among the signs in the vicinity of the storage location of the article.