32results about How to "Expand the range of changes" patented technology

An apparatus and method for displaying images and an apparatus and method for processing images are provided. The image display apparatus includes an image processor configured to receive an image frame and convert a gradation value of each of a plurality of pixels constituting the image frame to generate a sub image frame; and a controller configured to control a display panel to sequentially display the image frame and the sub image frame.

Inner-conductor holes whose internal surfaces are coated with inner conductors are provided in a dielectric block. Input / output electrodes are provided on the outside of the dielectric block, coupled to the inner conductors by electrostatic capacitance. Gap portions are provided between the input / output electrodes and an outer conductor. The input / output electrodes may be formed to extend from a bottom surface (mounting surface) and onto a side surface of an external surface of the dielectric block. Filter characteristics are determined depending on a width or a depth of the gap portion on the side surface of the dielectric block.

A sensor device has a plurality of electrode portions configured to provide one or more electrical signals and a non-conductive material provided on or over the plurality of electrode portions. The one or more electrical signals are provided in response to a change in capacitance between (i) at least one of the plurality of electrode portions and a conductive object being near to or in contact with the non-conductive material, and / or (ii) at least one of the plurality of electrode portions and at least one other of the plurality of electrode portions. A system comprising the sensor device and method of manufacturing the sensor device are also provided.

The invention relates to the technical field of flow measurement, in particular to an underground full-borehole thermal type flow measuring device. By adding the intermediate heat-conducting medium, the temperature change of the intermediate medium is measured, and the problem that the flow measurement reference quantity is difficult to extract and generate due to the fact that the heat capacity coefficient of liquid is large and the temperature change is not obvious during high flow is solved. Meanwhile, a plurality of temperature sensors are arranged at different positions in the body, different positions have different temperature change ranges, the value in the optimal temperature range can be selected from the temperature sensors to serve as a reference value for calculating flow, theflow measurement range is greatly widened, and the problems that the flow change range from top to bottom under an oil field well is large, and measurement is difficult are solved.

An optical pickup device is provided with a light source; an objective lens for focusing an optical beam emitted from the light source on a recording plane; a polarizing beam splitter arranged on an optical path between the light source and the objective lens; and a birefringence correction plate arranged on an optical path between the objective lens and the polarizing beam splitter for giving a phase difference between two polarization components of the entered optical beam which are orthogonally intersecting each other. In the optical pickup device, the phase difference generated by the birefringence correction plate differs, depending on a position within the plane of the birefringence correction plate. Thus, influence of birefringence is more effectively reduced by using the simpler optical element, and a margin for birefringence fluctuation of an information recording medium is widened.

The invention discloses a circuit and a method for improving the sensitivity of a differential resistance type sensor. A differential resistor R1 is connected in series with a differential resistor R2, the change directions of the R1 and the R2 are opposite, a differential resistor R3 is connected in series with a differential resistor R4, the change directions of the R3 and the R4 are opposite, the R3 and the R4 are connected in parallel at the two ends of the R1 and the R2, and the change directions of the R3 and the R1 are opposite; and an output signal line a is led out from a center tap point A on a connecting line of the R1 and the R2, and an output signal line b is led out from a center tap point B on a connecting line of the R3 and the R4. A group of differential resistors which are opposite to the original differential resistors in change direction and are the same as the original differential resistors in resistance are additionally arranged, and the two groups of differential resistors form an induction part which is of a differential structure mechanically and is in series connection electrically, so that a bridge circuit which is in differential change is formed between two middle connection points of the two pairs of differential resistors, the differential resistance type sensor effectively changes signal independent output and amplifies original output signals, and the resolution of actual change signals of the differential resistance type sensor is improved.

A sensor device has a plurality of electrode portions configured to provide one or more electrical signals and a non-conductive material provided on or over the plurality of electrode portions. The one or more electrical signals are provided in response to a change in capacitance between (i) at least one of the plurality of electrode portions and a conductive object being near to or in contact with the non-conductive material, and / or (ii) at least one of the plurality of electrode portions and at least one other of the plurality of electrode portions. A system comprising the sensor device and method of manufacturing the sensor device are also provided.

A piping structure of an air conditioner causes a looped main piping connected to a compressor of an outdoor unit of the air conditioner to be branched into two or more branch pipings within a predetermined interval of the main piping and cause the branch pipings to be jointed at an arbitrary location. According to the piping structure, it is possible to reduce a vibration by an interference phenomenon, which is generated when either a refrigerant pulsation or a periodic vibration of the compressor is divided and then combined.

The invention belongs to a power transmission part, in particular to a rotating cage typed belt roller of a variable speed case which comprises a wheel shaft and a wheel hub and is provided with a baluster, a large spoke frame, a small spoke frame and screws; wherein the surrounding surface of the top part of the baluster is one part of the circumference working surface of the belt roller; the side end thereof is provided with an extruding sliding block with a screw hole; the small spoke frame is fixed on the wheel hub; each screw is respectively meshed with the corresponding sliding block of the baluster; the shaft neck of the centripetal end of the screw is supported in the corresponding seat hole of the small spoke frame; the shaft neck of the centrifugal end of the screw spans the large spoke frame. The invention solves the technical problem of realizing the changes of the working radius of the belt roller by using the radial motion of the working surrounding surface of the belt roller to replace the axial motion.

The present invention discloses a planetary friction type continuously variable transmission (CVT) mechanism, which comprises a planet carrier, at least one planetary line, a sun gear set and a transmission unit, wherein the planetary line includes an outer planetary gear, a planet shaft, an inner planetary gear set and a rotary arm; the inner planetary gear set includes an inner planetary gear, a first planetary bevel gear and a second planetary bevel gear; the sun gear set includes a first bevel gear and a second bevel gear; the transmission unit is engaged with a transmission element in the planetary line; the inner planetary gear set is movably connected with the rotary arm; the rotary arm and the outer planetary gear are movably connected with the planet carrier through the planet shaft; the outer planetary gear is engaged with the inner planetary gear; and power is transmitted between the sun gear set and the inner planetary gear set through the engagement of conical surfaces, so that the continuous variable transmission (CVT) can be achieved. The planetary friction type CVT mechanism provided by the present invention can be applied in the field of the transmission of various vehicles, machines and the like.

The invention provides a series-parallel combination structure envelope tracking power supply, which includes a level supply unit, a level switching unit, a class A linear amplifier, a chopper circuit and a control circuit, and the level supply unit provides multiple channels for the level switching unit. Independent level, the output of the level switching unit is connected to the input of the class A linear amplifier, and the output of the class A linear amplifier supplies power to the load; the output of the chopper circuit supplies power to the load at the same time through an inductor, and the input of the control circuit is connected to the class A linear amplifier The input and output of the voltage regulator are respectively connected to the level switching unit and the chopper circuit. There are two ways to implement the control circuit, 1 is composed of a current sampling circuit, a minimum value detection unit and two control signal generation units, so that the chopper circuit can provide the lowest amplitude current in the load current; 2 is composed of two control signal generation units , so that the chopper circuit provides part of the triangular wave current in the load current.

The invention discloses a bionic flapping-wing micro-aircraft and a control moment generation method based on the difference of two wings and the change of the center of gravity of a steering gear to realize the generation of high control moment. The aircraft includes a lift system, a transmission system, a control system and a power system. The transmission system realizes the reciprocating flapping of the wings in a small space through the combination of the distributed gear reduction gear and the crank-connecting rod. The control system respectively drives the flapping wing tension beam to move forward, backward, left, and right through two independent steering gears to effectively adjust the angle of attack of the flapping wing. The tension beam of the flapping wing of the present invention is connected with the spherical hinge device on the base, and is controlled by the roll steering gear and the pitch, which effectively increases the change range of the flapping wing's attack angle and improves the control moment generated by the flapping wing. In addition, when the bionic flapping-wing MAV performs attitude control, the rudder effect is further enhanced by controlling the deflection of the center of gravity of the steering gear, which effectively improves the control torque generated by the flapping wing.

The invention provides a supporting component used for a similar simulation test of a high-speed rotor and a testing method, and belongs to the field of similar design of the high-speed rotor. The supporting component comprises a bearing, multiple rotor cages and a testing platform support. The bearing is used for supporting the simulation rotor to rotate, inner diameters of the rotor cages are identical and are matched with the outer diameter of the bearing, the rigidities of the rotor cages are different, in the test, different rotor cages are selected to sleeve the exterior of the bearing respectively, and the selected rotor cages and bearing are fixed through the testing platform support to simulate different supporting rigidities. The supporting rigidity of the provided supporting component can be two times or above that of a rotor original part, and the supporting component has high adjustment capacity for the supporting rigidity of a rotor system.

The invention discloses a microwave broadband temperature compensation attenuator, relates to a waveguide type device, and belongs to the technical field of basic electrical elements. The temperaturecompensation attenuator comprises an analog attenuator module and a negative temperature coefficient LDO module, the analog attenuator module and the negative temperature coefficient LDO module are connected between an input terminal and an output terminal, the negative temperature coefficient LDO module is formed by combining a band gap reference, a subtracter and an operational amplifier, and the analog attenuator module is formed by combining an FET and a resistor. The attenuator disclosed by the invention is wide in frequency range, wide in temperature compensation range, small in input and output voltage standing-wave ratio, small in circuit size, simple to control and convenient to use, and has a very good application prospect in a radio frequency microwave integrated circuit.

The embodiment of the invention discloses an adaptive imaging positioning navigation system and method for a driverless vehicle. The adaptive imaging positioning navigation system for the driverless vehicle comprises a sending end and a receiving end; the sending end sends original data including positioning navigation information through a visible light signal; and the receiving end is arranged on the driverless vehicle, used to receive the visible light signal and recover the visible light signal to obtain the original data; wherein the sending end comprises a indicator light and a street light, and the receiving end comprises a camera, a motor, a photosensitive sensor and a processor; the receiving end controls the rotation of the camera through the motor, and activates the camera to receive the optical signal and obtain the original data. According to the embodiment of the invention, the street light and the indicator light are used as the signal sources of the positioning navigation, and the variation range of the communication distance is improved by means of an adaptive switching mode, therefore, the problem that the communication mode is fixed and can only be applied to local application fields is solved, and the technical effects that the communication mode can be applied to different communication scenarios and the visible light communication technology is applied tothe field of the positioning navigation are achieved.