42results about How to "The solution is simple and reliable" patented technology

The invention relates to wireless communication between listening devices, in particular to a hearing aid system comprising a hearing instrument and a telephone apparatus. The invention further relates to a method of receiving a telephone call and to the use of a hearing aid system. The object of the present invention is to provide a relatively simple, reliable scheme for receiving a telephone call in a hearing instrument. The problem is solved in that the telephone apparatus comprises a transmitter for establishing a short range digital, low-power link to a hearing instrument comprising a corresponding receiver. This has the advantage of providing a relatively simple and low power solution, where at least the incoming part of a telephone conversation is wirelessly transmitted via a low-power link. The invention may e.g. be used for the communication between a hearing instrument and a telephone, where a standard wireless interface for local connectivity, such as a Bluetooth interface, is not technically feasible or not available for other reasons.

Flowmeter comprising at least two ultrasonic transducers that are mounted on a container which is penetrated by a medium in a certain direction of flow. The ultrasonic transducers alternately transmit and receive ultrasonic test signals in the direction of flow and counter to the direction of flow. The flowmeter further comprises a control / evaluation unit which determines and / or monitors the volume flow of the medium inside the container based on the difference in the travel time of the ultrasonic test signals propagating in the direction of flow and counter to the direction of flow. The ultrasonic transducers are configured such that they transmit and receive ultrasonic test signals or sound fields having a large aperture angle or a great beam expansion.

An integrated light-emitting device includes multiple p-n diodes integrated monolithically on an insulating substrate. The p-n diodes are of monolithic semiconductor materials over the single substrate. The p-n diodes can be all light-emitting diodes or a combination of light-emitting and ESD-protection diodes. The p-n diodes may have at least one beveled sidewall to enhance light extraction out of the light-emitting diodes. A method for producing such integrated light-emitting device and a method for producing such p-n diode that includes at least one beveled sidewall are also disclosed.

Method and system for band blocking in an optical telecommunication network. According to an embodiment, the present invention provides a system for optical network. The system includes an input that is configured to receive an input signal through a first optical input. The system also includes a band splitting module that is coupled to the input. The band splitting module is configured to separate the input signal into a plurality of bands. The plurality of bands includes a first band and a second band. The first band includes a first plurality of wave channels. The first plurality of wave channels is characterized by a first channel spacing. The second band includes a second plurality of wave channels, which is characterized by a second channel spacing.

The invention provides an outdoor automatic walking device based on a family courtyard. The outdoor automatic walking device comprises a shell and a walking module, and the walking module is installed on the shell. The outdoor automatic walking device further comprises an image collecting module and a main control module, the image collecting module is installed on the shell and used for continuously collecting images on the working surface when the automatic walking device walks on the working surface, and the main control module is installed in the shell, respectively connected with the walking module and the image collecting module, and used for continuously determining feature regions from the collected first images, recognizing the feature regions in the second images collected after the first images, and calculating and recording position change data and posture change data of the automatic walking device according to geometric deformation and displacement of the feature regions. The main control module is further used for calculating to obtain a walking track of the automatic walking device according to the recorded position change data and the recorded posture change data. The outdoor automatic walking device can be effectively controlled. The invention further provides a system and method for controlling the outdoor automatic walking device.

A drive hand-control system (6) mainly located at a lawn mower handle arrangement (5) intended for guidance of the lawn mower by an operator, the lawn mower having at least one power unit for driving at least one propulsion member and a cutting member, a drive arrangement for transmitting drive force to the at least one propulsion member and an operator presence control (7) located at the lawn mower handle arrangement (5) preferably for hand engagement by the operator, the drive hand-control system (6) comprising a drive engagement control (8) having at least two positions, where a first position disengages the drive of the at least one propulsion member and a second position engages the drive of the at least one propulsion member, and the drive engagement control (8) being switchable between the at least two positions by the operator, and the first position and the second position of the drive engagement control (8) being stable positions, which are stable without any effort from the operator, except for the effort possibly required for the hand engagement of the operator presence control (7).

The invention relates to an internal combustion engine and a valve drive unit thereof. The internal combustion engine comprises a plurality of cylinders. At least one cam shaft is rotatably supported in order to operate ventilating valves of the cylinders of a cylinder set, and one sliding cam allowing axial sliding is arranged on the cam shaft corresponding to each cylinder. A common actuator (7) is provided for all the sliding cams (2a, 2b, 2c) so that the sliding cams (2a, 2b, 2c) supported on the cam shaft (1) in an axially slidable manner can slide axially.

A system, method and computer program for removing faulty RFID tagged labels from a label applicator system wherein a RFID testing device detects faulty RFID tag whereby a tension on a label backing paper is reduced so as to increase a radius at a position of transferal of the labels from the label backing paper to a label applicator head. The increase in radius has the effect that the label is not transferred to the label applicator head but instead remains on the backing paper and thus will not be applied to a object to be labeled.

The invention relates in particular to a method for creating patterns in a layer (410) to be etched, starting from a stack comprising at least the layer (410) to be etched and a masking, layer (420) on top of the layer (410) to be etched, the masking layer (420) having at least one pattern (421), the method comprising at least;a) a step of modifying at least one zone (411) of the layer (410) to be etched via ion implantation (430) vertically in line with said at least one pattern (421);b) at least one sequence of steps comprising:b1) a step of enlarging (440) the at least one pattern (421) in a plane in which the layer (410) to be etched mainly extends;b2) a step of modifying at least one zone (411″, 411″) of the layer (410) to be etched via ion implantation (430) vertically in line with the at least one enlarged pattern (421), the implantation being carried out over a depth less than the implantation depth of the preceding, modification step;)c) a step of removing (461, 462) the modified zones (411, 411′, 41″), the removal comprising a step of etching the modified zones (411, 411′, 411″) selectively with respect to the non-modified zones (412) of the layer (410) to be etched.

An arrangement for coupling a pallet in a conveying device includes a pallet having wheels and forming a part of a transport track of the conveying device, and a drive element. A coupling piece is adapted to be connected to the pallet and a fastening parties connects the drive element to the coupling piece.

A method for producing patterns in a layer to be etched, from a stack including at least the layer to be etched and a masking layer overlying the layer to be etched, with the masking layer having at least one pattern. The method includes modifying a first area of the layer to be etched by ion implantation through the masking layer; depositing a buffer layer to cover the pattern of the masking layer; modifying another area of the layer to be etched, different from the first area, by ion implantation through the buffer layer, to a depth of the layer to be etched greater than the implantation depth of the preceding step of modifying; removing the buffer layer; removing the masking layer; removing the modified areas by etching them selectively to the non-modified areas of the layer to be etched.

A module (25) for measuring at least one parameter of a tire of a wheel of a motor vehicle, the wheel having a wheel rim (1). The measurement module (25) includes an inflation valve (30) designed to be assembled on the wheel rim (1) and including a deformable body (32) and a hollow rod (31) passing through the body (32) including an assembly notch (36) and a sensor device (40), mounted slidingly on the hollow rod (31), including at least one sensor for measuring the value of the parameter and an element (42) for immobilizing the sensor device (40) in the assembly notch (36). The assembly notch (36) has a setting range enabling the movement of the immobilizing element (42) in the assembly notch (36) between a first setting position and a second setting position to adapt to the thickness of the wheel rim (1).

The invention discloses a coaxial diaphragm loudspeaker unit, comprising an electromagnetic loudspeaker, wherein the electromagnetic loudspeaker comprises a sound cone driven by a voice coil and a sound cone frame for fixing the sound cone. The coaxial diaphragm loudspeaker unit is characterized by further comprising a passive type diaphragm, wherein the passive type diaphragm is fixed on the sound cone frame through an elastic component, annularly distributed outside the sound cone circumferentially, and coaxial with the sound cone; meanwhile, one side of the passive type diaphragm is maintained to be communicated with air in one side of the sound cone and sealed; and the other side of the passive type diaphragm and the other side of the sound cone are both exposed in an opening space. The coaxial passive type diaphragm and the sound cone are uniform to air vibration inside a resonant cavity, and almost free from influences of internal geometric structures of a sealing cover; acoustic coloring is small, so that the design of the sealing cover is not restricted greatly, as long as an enough sealing property is guaranteed; and the whole loudspeaker unit has the characteristics of simple and reliable scheme as well as good applicability.

The invention discloses a betel nut packaging bag opening device. The device comprises two racks, two bag suction units and two plastic bag retaining plates. The two bag suction units and the two plastic bag retaining plates are arranged on the rack, and the plastic bag retaining plates are disposed between the two bag suction units. Each of the two bag suction unit comprises a rotation disc, a rotation disc shaft, a sucker, a piston rod, a cam and a cam shaft. The rotation disc shafts are arranged on the rack, groove wheels and the rotation discs are arranged on the rotation disc shafts, and a plurality of piston cylinders are arranged at the ends of the rotation discs. The cam shafts are arranged on the rack, and the cams are arranged on the cam shafts. The suckers are arranged on the outer walls of the bottom of the piston rods, and the bottoms of the piston rods are communicated with the suckers. Springs are arranged between the pistons in the piston cylinders and the bottoms of the piston cylinders. Column rollers are arranged at the ends of the piston rods, and the column rollers of the piston rods are connected with the cams. By means of the device, the betel nut automatic packaging line opening process is achieved, the worker labor intensity is reduced greatly, and the worker labor environment is improved.

The invention discloses a grounding system for a transformer neutral point resistance type direct current suppression device. The grounding system comprises transformer neutral points, the resistance type direct current suppression device, grounding knife switches, direct current suppression knife switches, a grounding electrode and a remote measurement and control unit. The transformer neutral points are connected with the high-voltage sides of the grounding knife switches and the direct current suppression knife switches. The low-voltage sides of the grounding knife switches are connected with a grounding copper bar in the resistance type direct current suppression device through a primary cable, and the low-voltage sides of the direct current suppression knife switches are connected with a wire inlet copper bar in the resistance type direct current suppression device through a primary cable. The grounding copper bar is connected to the grounding electrode through a metal conductor. Signals acquired by a direct current transformer and an alternating current transformer are transmitted to the remote measurement and control unit through secondary cables, and the remote measurement and control unit is connected to an electric system monitoring network. The grounding system can achieve the direct current magnetic bias treatment and direct current and alternating current monitoring functions when the resistance type direct current suppression device is normally operated or overhauled, the scheme is simple and reliable, and the grounding system is convenient to maintain and suitable for application and popularization.

A boom conveyor includes a boom that carries a conveyor, a support structure, a rear pivot joint that connects a rear end of the boom to the support structure, and a pivot drive that controls pivoting movement of the boom. An operator cage is attached by a front pivot joint to a front end of the boom. A levelling system controls rotation of the operator cage about the front pivot joint. The levelling system includes a flexible cord attached to the operator cage and extending towards the rear end of the boom, and a level adjusting device that is attached to the support structure adjacent the rear end of the boom and engages an adjusting portion of the cord. During pivoting movement of the boom, the level adjusting device controls longitudinal movement of the cord relative to the boom so as to apply a levelling adjustment to the operator cage.

The invention discloses an integrated brake rocker arm device of an engine, and relates to the technical field of engine brake rocker arms. The integrated brake rocker arm device comprises a control mechanism arranged on a rocker arm body, the control mechanism comprises a slide valve, a positioning ring, a cup-shaped valve and a plug which are sequentially installed in a control cavity, a ball valve seat, a ball valve compression spring arranged outside the ball valve seat in a sleeved mode and a ball valve located on the ball valve seat are arranged in the sliding valve, the ball valve seatis compressed by the ball valve compression spring, a ball valve piston spring is arranged in the cup-shaped valve, the opening end of the cup-shaped valve faces the plug, and a protrusion at the bottom of the other end of the cup-shaped valve abuts against the ball valve. The sliding valve structure is adopted in the control mechanism, the braking response speed is increased, the reliability is high, and the structure is compact.

The disclosure concerns a device for determining the dimension of the upper concrete cover of a concrete component, having at least one fastening by means of which the device can be fixed to a reinforcement for a concrete component and at least one section capable of projecting above the upper concrete cover during casting in the reinforcement, wherein this section presents means of configuration by which the dimension of the upper concrete cover may be determined.

The invention discloses a frequency-interleaved converter unit and a control method. The invention provides a frequency-interleaved converter unit. The frequency-interleaved converter unit is formed by connecting N submodules in series, wherein each submodule is formed by a converter unit and a control unit; the converter unit comprises a power semiconductor device and a direct current capacitor and realizes direct current and alternating current conversion; the control unit generates a control signal to control on and off of a power semiconductor device of the converter unit; and the control signal is generated by comparing a carrier wave with a modulated wave. The control method of the converter unit is characterized in that the N sub-modules comprise at least M different carrier frequencies, and M is an integer greater than or equal to 2. According to the scheme, the problems of mutual superposition and resonance of higher harmonics of the distributed power electronic converter are solved by presetting different carrier frequencies and packet switching.

The subject of the invention is a unit for manufacturing felts (6) which are formed from crosslinked mineral fibers, comprising at least one pair of conveyors formed by a lower conveyor (11) and an upper conveyor (12) which are placed opposite each other and intended to compress said felt (6) in at least one direction, a means (13) for heat treating the felt (6) after it has passed through the conveyors (11, 12) comprising at least one means (14) placed between the conveyors (11, 12) and the heat treatment means (13), intended to prevent decompression of the felt (6) in this region, said means comprising at least one cam (14) having a profile suitable for keeping a constant and minimum distance between the conveyors (11, 12) and the heat treatment means (13), and in that at least one of the conveyors is rigidly connected to one element of the heat treatment means (13).

The invention discloses an electrochromic film driving control method and device, and a computer readable storage medium. The electrochromic film driving control method comprises the steps of: presetting =light transmittance and a display color of an electrochromic film through using a processor, and controlling power on of the electrochromic film; determining a charge capacity value of a voltameter according to the light transmittance and the display color; then, controlling a load switch to be switched on through using the processor, and acquiring charging charges in real time through usingthe voltameter; and finally, when the charging charge reaches the charge capacity value, switching off the load switch by means of the processor, and stopping charging the electrochromic film. According to the electrochromic film driving control method and the device, a user-friendly electrochromic film driving control scheme is realized, so that the light transmittance of the electrochromic filmcan be finely and continuously adjusted, and the realization scheme is simple and reliable.

The invention relates to a transfer type grounding arc suppression device. On the basis of the existing grounding arc suppression device, a single-phase quick circuit breaker is added between a split-phase circuit breaker and the ground. In the case of a single-phase short circuit to ground, if a fault phase is judged wrongly and a normal phase is metal-grounded to cause an inter-phase short circuit, the metal grounding of the normal phase can be disconnected quickly to avoid accidents. In addition, the transfer type grounding arc suppression device adopts a magnetic mechanism vacuum circuit breaker and has the advantages of long mechanical life, small volume and difficult demagnetization. An electronic voltage transformer is also adopted, which avoids the hidden danger of ferromagnetic resonance.

The invention relates to a vehicle-mounted crane limiting protection system and an automobile crane. The vehicle-mounted crane limiting protection system comprises operating levers, ultrasonic sensorsfor detecting the action of the operating levers, a controller, a force limiter, an electromagnetic valve, a main hook height limiting switch, an auxiliary hook height limiting switch, a main three-ring protector, and an auxiliary three-ring protector. When the crane encounters faults such as overwinding, over-discharging and overload during hoisting operation, the controller limits the operatinglevers to act towards the dangerous direction by controlling the electromagnetic valve to be powered on and powered off. Due to the fact that the ultrasonic sensor is installed behind each operatinglever, the controller can judge the total working direction of the operating levers according to the ultrasonic sensors; when the operating levers act towards the dangerous direction, all the action electromagnetic valves are powered on to unload, and the crane can only act towards the safe direction. The intelligent release system for limiting protection is easy to operate, safe, reliable and high in intelligent degree.