325results about How to "Avoid sensitivity" patented technology

A control system for an electric motor including an inverter for providing power to the electric motor, a controller for controlling the inverter, a first motor speed control block in the controller injecting a high frequency signal into the electric motor to determine the speed and position of the electric motor, a second motor speed control block in the controller detecting the back electromotive force to determine the speed and position of the electric motor, and a transition control block in said controller to vary operation between the first motor speed control block and the second motor speed control block.

A method and an apparatus adapted to a capacitive touch panel for drift compensation are provided, wherein the touch panel includes a plurality of sensors. In the method for drift compensation, a plurality of capacitances respectively sensed by each of the sensors are extracted. Whether the touch panel is in a proximity state is determined upon a slope of the sensed capacitances and a slope parameter. Whether each of the capacitances is drifted is determined upon the capacitance and an allowable noise range. When the touch panel is not in the proximity state and each of the capacitances is drifted, each of the capacitances is compensated according to a drift error of each of the capacitances after a first presetting time has passed.

The invention discloses a graphene/ stannic oxide nanometer compounding resistance type film gas sensor, which takes ceramics as a basal body. The surface of the ceramic basal body is photo-etched and evaporated with multiple pairs of interdigital gold electrodes, and is coated with gas-sensitive films of graphene and stannic oxide nanometer composite, and the manufactured resistance type film gas sensor has the advantages of simple manufacturing process and low cost. The gas-sensitive film is composed of a grapheme namosheet layer in a three-dimensional nano-structure and stannic oxide crystal particle composite with an orientated growth characteristic, the introduction of the graphene can favorably reduce the resistance of sensor elements, and the formation of the three-dimensional nano-structure can obviously enhance the specific surface area of the composite, thus the absorption and the diffusion of the gas can be promoted so as to greatly enhance the room temperature gas sensitive response sensitivity of elements. The graphene/stannic oxide nanometer compounding resistance type film gas sensor has the characteristics of high response sensitivity to low concentration ammonia, fast response, favorable recovering performanc, capability of carrying out the detection at the room temperature, and the like, which can be widely applied in the agricultural and industrial production process, and the room temperature detection and control of the concentration of ammonia in the atmospheric environment.

First and second detection frames are supported by a substrate to be rotatable about first and second torsion axes. A first link beam is connected to the first detection frame on an axis located at a position moved from a position of the first torsion axis in a first direction crossing the first torsion axis and directed to one end side of the first detection frame. A second link beam is connected to the second detection frame on an axis located at a position shifted from a position of the second torsion axis in a second direction opposite to the first direction. An inertia mass body is displaceable in a thickness direction of the substrate by being linked with the first and second detection frames by the first and second link beams, respectively. This constitution makes it possible to obtain a highly precise acceleration sensor hardly influenced by disturbances.

The invention discloses a camera focusing device, which comprises a ranging sensor, a control module and a focusing module. The invention further discloses a camera focusing method. The method comprises the following steps that (1) the ranging sensor measures a distance from a tested object to the ranging sensor, and transmits the measured distance information to the control module; (2) the control module receives the distance information transmitted by using the ranging sensor, judges according to the distance information, and transmits a control signal to the focusing module; and (3) the focusing module focuses according to the control signal transmitted by using the control module. According to the camera focusing device and the camera focusing method, the focusing times are not required to be controlled through a focusing key, and the zooming magnitude is determined according to the distance of the tested object for adjusting a focal length, sensed by the range sensor, so that the defects of slow response, poor sensitivity and low accuracy of the focusing key used in the prior art are overcome, and camera focusing can be realized flexibly and rapidly.

A hydrogen sensor 25 has a fitting base plate 29 in which a gas-sensing chamber 34 is formed, a specimen gas intake 35 formed on said fitting base plate 29, opening toward an exit passage 24 and introducing hydrogen gas into the gas-sensing chamber 34, a gas-sensing element 39 held in the gas-sensing chamber 34 and adapted to sense hydrogen gas, and a water-repelling filter 44 covering the specimen gas intake 35.

In a Wavelength-Division-Multiplexed Passive Optical Network (WDM-PON) utilizing a conventional downstream optical signal reusing method, there is an inventory problem that different optical transmitter types need to be provided for the operation, management, replacement, etc. of a system. A WDM-PON system according to the present invention, includes: a seed light (SL) unit generating a seed light whose wavelength intervals and center wavelengths are adjusted using at least one seed light source; an optical line terminal (OLT) receiving the wavelength-multiplexed seed light from the seed light unit, transmitting a downstream optical signal to a subscriber of the WDM-PON, and receiving a upstream optical signal from the subscriber; and an optical network unit (ONU) receiving the downstream optical signal from the OLT, flattening and modulating the downstream optical signal with upstream data so that the downstream optical signal is reused for carrying upstream data. It is possible to improve the quality and reliability of downstream transmission by sufficiently increasing an extinction ratio, and improve the quality and reliability of upstream transmission by sufficiently flattening an input downstream optical signal in a semiconductor optical amplifier.

The invention discloses a multi-phase gait switching control system and control method for a power-assisted exoskeleton robot. The multi-phase gait switching control system is characterized in that the multi-phase gait switching control system includes a sensor module, a signal acquisition and processing module, a gait switching motion control module and a motor driving module; and sensors comprise inertial measurement units, plantar pressure sensors and motor encoders. With the multi-phase gait switching control system and control method for the power-assisted exoskeleton robot of the invention adopted, the output of lower hip joint and knee-joint motor power-assisted torque under various of phase gaits and smooth switching between the phase gaits can be planned under a condition that the exoskeleton robot bears a heavy object, and the coordination and flexibility of the movement of the limbs of the weight-bearing exoskeleton equipment can be realized.

The invention provides a photoelectric conversion device, in which a decrease in sensitivity and a crosstalk between wirings are suppressed. Plural pixel columns are arranged in one direction, plural pixels are arranged in a different direction to the one direction in a column manner in the pixel column, and the pixel includes a photodiode PD, a reset transistor M4 for resetting the photodiode PD, and a source follower input transistor M3 for receiving a signal from the photodiode PD. An independent readout wiring 16 is individually provided for each pixel. The reset transistor M4 and the source follower input transistor M3 included in one pixel column or another pixel column are arranged between the photodiode column in one pixel column and the photodiode column in another pixel column arranged adjacent to the one pixel column.

The invention relates to a screen unlocking method. The screen unlocking method comprises the following steps: an electronic device receives an unlocking operation of a user; the electronic device judges whether the unlocking operation is matched with an existing unlocking scheme or not and unlocks when the unlocking operation is matched with the existing unlocking scheme, wherein the existing unlocking scheme comprises the unlocking operation in an unlocking region, the unlocking region is a touch screen any region or an appointed unlocking region, and the unlocking operation is one or combination of single click, double click, and long-press; therefore, the convenience and the variety of the unlocking manner are realized; after being unlocked, the touch screen can automatically enter an appointed application program interface according to the configuration of the user so that the operation is simplified; simultaneously, the position of the unlocking region on the touch screen is random so that the problem of reduced abrasion, sensitivity and precision of the touch screen caused by long-term operation on a constant region can be effectively avoided.

In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil portion is disposed around the first magnetic core and a second coil portion is disposed around the second magnetic core. The winding direction of the second coil portion is opposite to that of the first coil portion. The first coil portion and the second coil portion are connected to define one coil as a whole.

A solid-state image capturing apparatus includes: a pixel array unit including two-dimensionally arranged pixels each including a photoelectric conversion unit, a transfer transistor that transfers charges accumulated in the photoelectric conversion unit, and a charge discharging transistor that selectively discharges the charges accumulated in the photoelectric conversion unit; and a driving unit that performs driving for reading signals from each pixel of the pixel array unit, and drives the charge discharging transistor by using a signal for the driving.

The invention provides a skin caring product made from roses and a preparation method thereof. The skin caring product is prepared from, by weight, 20-130 parts of rose hydrosol, 2-3 parts of glycerol, 2-4 parts of butanediol, 1-4 parts of tremella extracts, 0.5-2 parts of low-molecular-weight hyaluronic acid, 0.5-2 parts of high-molecular-weight hyaluronic acid and 4-20 parts of deionized water. The skin caring product made from roses comprises the rose hydrosol with the feature beautifying function and has the functions of moistening skin and keeping the skin moist and refreshing. Besides, the skin caring product made from roses has the functions of conditioning skin, relieving patches and preventing skin sensitivity and decrustation and also has many effective components for supplementing water and preserving moisture, and functions of making the water supplementing and moisture preserving effect last long and prolonging the effect of the rose hydrosol are also achieved. The preparation method of the skin caring product made from roses has the advantages of being convenient to use, simple and easy to master, rose essence water and rose essence cream can be respectively obtained through different operating methods, and products are diversified.

A positive photosensitive composition comprises: (A) an acid generator capable of generating an acid upon irradiation with one of an actinic ray and a radiation; and (B) a resin having a monocyclic or polycyclic alicyclic hydrocarbon structure and capable of decomposing by the action of an acid to increase the solubility in an alkali developer, wherein the acid generator (A) comprises at least two compounds of a sulfonium salt compound not having an aromatic ring, a triarylsulfonium salt compound, and a compound having a phenacylsulfonium salt structure.

A mass analysis of a standard sample having a known mass-to-charge ratio is carried out by performing a mass scan at a first-stage quadrupole (13) over a predetermined mass range, under the condition that a collision induced dissociation (CID) gas is introduced into a collision cell (14) and a voltage applied to a third-stage quadrupole (17) is set so that no substantial mass separation occurs in this quadrupole. Various kinds of product ions originating from a precursor ion selected by the first-stage quadrupole (13) arrive at and are detected by a detector (18) without being mass separated. Accordingly, based on the detection data, a data processor (25) can obtain a relationship between the voltage applied to the first-stage quadrupole (13) and the mass-to-charge ratio of the selected ions, with a time delay in the collision cell (14) reflected in that relationship. This relationship is stored in a calibration data memory (26), to be utilized in a neutral loss scan measurement or the like. By using this relationship, a mass shift due to the time delay in the collision cell (14) can be cancelled, so that the product ions can be detected with high sensitivity over the entire mass range. Furthermore, a mass spectrum having an accurate mass axis can be created.

The invention provides a weak supervision remote sensing target detection method based on hybrid hole convolution. According to the method, various customized designs such as hybrid hole convolution,attention mechanism and multi-layer pooling are adopted, multi-scale feature extraction and fusion are enhanced, and the robustness of objects of different sizes is improved. Besides, asynchronous iteration alternate training between a strong supervision detector and a weak supervision detector is utilized, training and detection can be carried out only through an image-level real label, and the purpose of cooperatively improving the detection performance is achieved.

Embodiments of the present invention provide methods and apparatus for decoding digital video or motion picture signals with error concealment to prevent or minimize degradation of the picture quality. When corruption occurs, the method determines whether error concealment is needed according to a preset criterion. If so, motion vectors for the corrupt region are calculated using the motion vectors and rates of change of motion of current blocks in the current frame and/or old blocks in a previous frame according to a best matching block selection process. The method also determines if the “time” relative motion of content is small by defining a percentage use parameter. In some cases, once the error concealment is complete, the “weight” or visual sensitivity of the restored block is decreased in order to reduce boundary artifact effects. This is accomplished by a quantization mask employing the human visual system (HVS) concept.

Electron linear accelerators are used to generate X-ray radiation for the treatment of tumors. Efficient irradiation of tumors can only be guaranteed if the electron beam is guided accurately and so the required dose profile is applied. The deviation from the ideal path of the electron beam is measured by means of so-called beam position monitors and then corrected by magnets.

According to the invention the deviation of the electron beam is measured in a drift tube of the linear accelerator, the wave to be decoupled having a frequency range that corresponds to a multiple of the basic frequency of the acceleration field. Coupling probes, a mixer-based receiving concept with high dynamics and sensitivity, a method for evaluating the measuring signals and a calibration method for calibrating out non-linearities are specified.

Disruptive influences through the acceleration field are minimized by the measurement method according to the invention and the frequency range to be evaluated. The high evaluated frequencies also offer geometrically small coupling probes which one can introduce into a drift tube in which only the field of the electron beam to be evaluated exists.

First and second detection frames are supported by a substrate to be rotatable about first and second torsion axes. A first link beam is connected to the first detection frame on an axis located at a position moved from a position of the first torsion axis in a first direction crossing the first torsion axis and directed to one end side of the first detection frame. A second link beam is connected to the second detection frame on an axis located at a position shifted from a position of the second torsion axis in a second direction opposite to the first direction. An inertia mass body is displaceable in a thickness direction of the substrate by being linked with the first and second detection frames by the first and second link beams, respectively. This constitution makes it possible to obtain a highly precise acceleration sensor hardly influenced by disturbances.