76results about How to "Difficult to design" patented technology

A cementitious product for applications such as stucco, plaster coating, fireproof coatings, casting/molding applications and flooring. The product is a blend of magnesium oxide and magnesium chloride. Suitable fillers such as bottom ash, fly ash, clinker and other pulverized materials may be added. Fibrous materials, foaming agents and surfactants may also be added to achieve product characteristics for specific application. Processes for blending the selected ingredients are also disclosed.

A lens cap and an LED package structure using the same are provided. The lens cap includes a cap body made of a transparent material for being covered on a point light source. The cap body includes a first incident surface, which is a curved surface raised on a inner side of the cap body and refracts light emitted by the point light source into the cap body. A reflective surface is formed the outer side of the cap body and is opposite to the first incident surface, wherein the reflective surface reflects the light refracted by the first incident surface. A light-transmitting surface is formed on the outer side of the cap body, and the light reflected by the reflective surface is projected onto the light-transmitting surface to exit the cap body. Thus, the light is emitted towards the lateral of the lens cap along a horizontal direction.

The invention is a system (10, 110) for regulating volume in a retention cuff/balloon (20) in an indwelling catheter; i.e., the combination of fixed-volume inflatable retention cuff mountable on a patient proximal end of an indwelling catheter (14) and relief valve (23, 123) connected to the cuff. The relief valve has ends for selective introduction of fluid to the cuff and for connection to an inflation tube. A valve port (24, 124) permits escape of excess fluid when a maximum cuff volume has been exceeded, and inflation tube (22) connects cuff (20) to the relief valve. The inflation tube has ends in fluid-tight connection to an interior of the cuff, and the relief valve to thereby permit the cuff and valve to be in fluid communication with each other for selective filling of the cuff to insert and safely retain an indwelling catheter in a patient for an extended period.

The present invention provides an in-wheel motor for an electric vehicle allowing a drive motor to be freely mounted onto a chassis irrespective of the shape, structure, and characteristics of the drive motor as well as allowing free selection of a reduction gear ratio without need to replace a drive motor.

An in-wheel motor for an electric vehicle includes a drive motor (1200), a reduction gear mechanism (1300), a wheel bearing, and a mechanical brake and serves as a drive apparatus for an electric vehicle. The drive motor (1200) includes a casing (1210) which houses a rotor (1240) and a stator (1220); the reduction gear mechanism (1300) is implemented by a planetary gear mechanism; a wheel bearing is fixedly attached to the outer circumference of an end portion of a housing (1411), which houses a wheel shaft (1410) coupled to an output element of the planetary gear mechanism; mounting blocks (800, 810) having engagement means are provided respectively at upper and lower outside portions of the casing (1210); and attachments are attached to the corresponding mounting blocks (800, 810) and joined to corresponding joint mechanisms (612, 712), which are movably coupled to a suspension mechanism.

A controller for controlling a system includes a non-transitory computer-readable memory storing data for an operation and a control of the system and at least one processor operatively connected to the memory for determining a control signal transitioning a state of the system from a current state to a next state. At least two instances of the data are stored in the memory with different precisions defined by numbers of bits storing the instance in the memory. The processor determines the control signal using the instances of the data with the different precisions.

A light source apparatus includes a first reflector having a first reflection face; a second reflector having a second reflection face, the first reflection face of the first reflector and the second reflection face of the second reflector disposed opposite each other; and a plurality of light sources being disposed around a periphery of the second reflector. Light beams emitted from the plurality of light sources reflect on the first reflector and then reflect on the second reflector.

To meet a demand for changing a print medium size, particularly for increasing the size of print medium while at the same time satisfying the demand for higher printing speed. To that end, a plurality of printer units (116), which are spatially independent of each other (separate from each other) and also independent in the signal system and the ink system, are arranged in an appropriate layout to allow for a line-sequential printing. An information processing device (100) divides a generated image into a plurality of pieces of print data and transfers them to the plurality of printer units. A transport device (117) is installed to feed a large-sized print medium to an area where the plurality of printer units are arranged. The transport device transfers to each of the plurality of printer units a print timing signal corresponding to the position of each printer unit.

An optical imaging lens includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element arranged in order from an object side to an image side along an optical axis. Each lens element has an object-side surface and an image-side surface. The optical imaging lens satisfies: V4+V5+V6+V7≤175.00, wherein V4 is an Abbe number of the fourth lens element, V5 is an Abbe number of the fifth lens element, V6 is an Abbe number of the sixth lens element, and V7 is an Abbe number of the seventh lens element.

An optical imaging lens includes a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element arranged in order from an object side to an image side along an optical axis. Each lens element has an object-side surface and an image-side surface. The first lens element has positive refracting power, and the image-side surface of the first lens element has a concave portion in a vicinity of a periphery. The third lens element has negative refracting power, and the image-side surface of the third lens element has a concave portion in a vicinity of a periphery. At least one of the object-side surface and the image-side surface of the fourth lens element is aspheric surface, and at least one of the object-side surface and the image-side surface of the fifth lens element is aspheric surface. The sixth lens element has positive refracting power, and the image-side surface of the seventh lens element has a concave portion in a vicinity of the optical axis.

An improved arrangement of light-emitting diodes of a LED lamp includes a circuit board and a plurality of light-emitting diodes. The surface of the circuit board is provided with a layer of conductive circuit, so that the light-emitting diodes can be arranged on the circuit board and electrically connected to the conductive circuit. On the surface of the circuit board provided with the conductive circuit, an imaginary circle is defined. Further, the light-emitting diodes are distributed on the circuit board along the imaginary circle to form a circular arrangement.

A periodically resetting integration angle demodulation device and a method using the same is disclosed, which uses a waveform multiplier and a periodically resetting integrator to modulate a continuous-time angle modulation signal into a discrete-time signal. The waveform multiplier multiplies the continuous-time angle modulation signal by a square wave signal whose frequency is integer times a carrier frequency, and then transmits the continuous-time angle modulation signal to a periodically resetting integrated circuit. The periodically resetting integrated circuit performs integration during a carrier period to generate a discrete-time angle modulation output signal. The present invention can greatly reduce the difficulty for designing an optical sensing system in the front end without limiting a modulation depth. Besides, the present invention achieves a small volume, high speed, high sensitivity, high reliability, high performance and high condition-adapting properties.

The present invention relates to inductively coupled plasma mass spectrometry (ICPMS) in which a collision cell is employed to selectively remove unwanted artefact ions from an ion beam by causing them to interact with a reagent gas. The present invention provides a first evacuated chamber (6) at high vacuum located between an expansion chamber (3) and a second evacuated chamber (20) containing the collision cell (24). The first evacuated chamber (6) includes a first ion optical device (17). The collision cell (24) contains a second ion optical device (25). The provision of the first evacuated chamber (6) reduces the gas load on the collision cell (24), by minimising the residual pressure within the collision cell (24) that is attributable to the gas load from the plasma source (1). This serves to minimise the formation, or re-formation, of unwanted artefact ions in the collision cell (24).

There is provided an illumination system for wavelengths of <=100 nm, having an object plane and a field plane. The illumination system includes a grating element having a plurality of gratings, and a diaphragm. The diaphragm is arranged after the grating element in a beam path from the object plane to the field plane.

A lens activating device includes at least one elastic piece, at least one stationary piece and a movable piece. At least one elastic piece has at least four sheet portions and four sets of elastic portions. Each set of the elastic portions are serpentine and connected between two sheet portions in order to make the at least one elastic piece form a closed ring. The stationary piece is connected to two sheet portions, and the movable portion is connected to the other two sheet portions. The elastic force generated by the four sets of elastic portions exerts a restoring force on the movable piece. Via this arrangement, the slight rotation of the movable piece within the lens activating device can be reduced. Further, the problem that the elastic piece may scrape the neighboring elements can be prevented.

The present invention is to provide a computer for backup and being fault-tolerant comprising a CPU connected to an I/O port, a dual-port memory, a memory address decoder, a bus tri-state buffer, and an arbitration circuit, where the CPU can access data of the dual-port memory based on a decoded memory address of the memory address decoder, first and second ports of the dual-port memory are connected to input and output of the bus tri-state buffer respectively, and an output of the arbitration circuit is connected to an enable terminal of the bus tri-state buffer. Thus, when two identical computers are connected together as a dual computer system, both computers can perform the same operations, compare and change operation data each other via the I/O port and the dual-port memory, and control an output value of the arbitration circuit based on the comparison results for causing the bus tri-state buffer to enter a bi-directional communication state or a high impedance disconnected state, forcing either malfunctioned computer to surrender its control of the system bus.

Provided is a simple and highly sensitive nucleic acid amplification method including hybridizing two types of oligonucleotide probes with a target gene and ligating the oligonucleotide probes with DNA ligase and amplifying the resultant single-stranded oligonucleotide in accordance with LAMP.

The present invention proposes a fixed beam antenna array and a base station including the antenna array. In order to provide a simpler and more efficient fixed-beam antenna array, the proposed antenna array includes columns (AC1-AC4) of antenna elements (AE) emitting the generated signals, this fixed-beam antenna array also includes Beamforming means for adjusting the phase angle and/or amplitude of the generated signals and a number of columns (AC1-AC4) respectively assigned to said antenna elements (AE), arranged between said beamforming means (BM) and said columns Active power amplifiers (PA) between (AC1-AC4) for amplifying the signal output by said beamforming means and for delivering the amplified signal to the antenna elements (AE) assigned to transmit the signal. The invention also proposes a method of transmitting the generated signal through such a fixed beam antenna array.

The present invention provides an optical sheet placed in a backlight assembly and the manufacturing method therefor. There are pluralities of first microstructures on the surface of the optical sheet. The optical sheet is mainly made of cured photo resin, for instance: ultraviolet glue. The optical sheet has higher performance and lower cost.

A method of operating a vehicle locating unit wherein an activation signal is received when the vehicle is stolen and in response to the activation signal, a signal indicating the vehicle has been stolen is transmitted. The receiver is energized for an actual duration N_on periodically to listen for the activation and other signals. Estimating how long the receiver has been on includes incrementing a counter at a count resolution where N_on is typically at least sometimes less than the count resolution. Estimating the total amount of time the receiver was energized is based on a measured on time after it converges with the actual on time.

The present invention provides an ESL TFT substrate structure and a manufacturing method thereof. In the ESL TFT substrate structure, an etch stop layer (5) includes a first via (51) and a second via (52) formed therein to correspond to two side portions of an oxide semiconductor layer (4). A drain terminal (6) is set in engagement with the oxide semiconductor layer (4) through the first via (51). A passivation protection layer (7) includes a through hole (72) formed therein to extend to and communicate with the second via (52). An electrode layer (8) is formed on the passivation protection layer (7) and has a side portion that is adjacent to the drain terminal (6) and is set in engagement with the oxide semiconductor layer (4) through the through hole (72) and the second via (52) to form a source terminal (81) and an opposite side portion that is extended in a direction away from the drain terminal (6) to form a pixel electrode (82). The ESL TFT substrate structure has a reduced channel length so as to provide the TFT with excellent electrical conduction performance and also to reduce the size of the TFT thereby increasing an aperture ratio of pixels and reducing difficult of pixel design.