1889results about How to "Lower the threshold" patented technology

A cochlear implant system, or other neural stimulation system, has the capability to stimulate fast enough to induce stochastic neural firing so as to restore “spontaneous” neural activity. The stimulation rate applied to the more distally-located electrodes of an electrode array connected to the implant system is reduced from the stimulation rate applied to the more proximally-located electrodes. Thus, in the case of a cochlear implant system, the apically-located regions within the cochlea are stimulated at a reduced rate in order to conserve power. Pulse widths of the reduced-rate pulses may further be increased, and amplitudes reduced, to further conserve power. As needed, a low-level random conditioner stimulation signal may be applied to the apical regions of the cochlea in order to ensure the occurrence of random neural firings.

A method for generating a simulated aerial image includes forming a reference aerial image of a first mask using an optical system, and capturing and processing the reference aerial image so as to generate a set of expansion functions representative of the optical system. The simulated aerial image of a second mask is then computed by applying the expansion functions to a design of the second mask.

A system provided for protecting a disk drive from impact damages. More specifically, a disk drive is provided that includes an accelerometer interconnected to a printed circuit board that detects free fall of the disk drive. In addition, the velocity of spinning disks of the disk drive is also monitored to assess changes in velocity thereof that may indicate the presence of a tumbling condition. Furthermore, the change in acceleration measured by the accelerometer is monitored to prevent false indications of free fall due to common vibrations. Thus an enhanced system is provided that protects disk drives from the effect of free falls under a wide variety of conditions and allowing for drops from shorter distances to be identified.

An optical semiconductor device has a structure in which a semiconductor active layer is sandwiched by a p-type semiconductor cladding layer and an n-type semiconductor cladding layer and a p-type contact layer is formed on the p-type semiconductor cladding layer side and an n-type contact layer is formed on the n-type semiconductor cladding layer side, wherein two ferromagnetic layers are formed on the n-type contact layer and two ferromagnetic layers are formed on the p-type contact layer. Magnetization directions of a pair of ferromagnetic layers vertically opposed to each other are set to be parallel to each other, and the magnetization directions of adjacent ferromagnetic layers are inverted to each other.

Apparatus and methods for managing pain uses separate varying electromagnetic fields, with a variety of temporal and amplitude characteristics, which are applied to a particular neural structure to modulate glial and neuronal interactions as a mechanism for relieving chronic pain. In another embodiment, a single composite modulation/stimulation signal which has rhythmically varying characteristics is used to achieve the same results as separate varying electromagnetic fields. Also, disclosed is an apparatus and method for modulating the expression of genes involved in diverse pathways including inflammatory/immune system mediators, ion channels and neurotransmitters, in both the Spinal Cord (SC) and Dorsal Root Ganglion (DRG) where such expression modulation is caused by spinal cord stimulation or peripheral nerve stimulation using the disclosed apparatus and techniques. In one embodiment of multimodal modulation therapy, the prime signal may be monophasic, or biphasic, in which the polarity of the first phase of the biphasic prime signal may be either cathodic or anodic while the tonic signal may be either monophasic, or biphasic, with the polarity of the first phase of the biphasic tonic signal being either cathodic or anodic.

The invention discloses a method for generating configuration for middleware protocol conversion of the Internet of vehicles. According to the method, the rapid development of a protocol conversion module is realized through configuration, vehicle enterprise communication protocol conversion parameters are added into a configuration tool through reading DBC (DataBase Commander) file description information which is compiled according to the communication protocol of the Internet of vehicles, configuration information is stored in a database, and middleware protocol conversion module codes of the Internet of vehicles are automatically generated by using protocol conversion template files; a vehicle body network is rapidly integrated with other networks, so as to realize the communication of the Internet of vehicles; the configuration tool can automatically generate configuration files and an application framework and carries out error check on the configuration of a user, worker involvement is avoided as much as possible, and the error rate is lowered, so that the stability of the protocol conversion module can be actively improved.

The invention relates to a method for distance measurement by determining the pulse transit time, in which pulsed electromagnetic radiation is transmitted using at least one transmitter and signal pulses reflected at objects are detected using at least one receiver, wherein at least one received logic signal containing logic signals is generated from the received analog signal containing the signal pulses, in particular by means of a threshold circuit, and is evaluated with respect to the transit times of the logic signals, and wherein the received logic signal is read into a programmable logic circuit by means of a clocked data reading device and is mapped onto a time pattern in the logic circuit, in that instantaneous values of the received logic signal are stored in logic units of the logic circuit associated with the time windows for time windows of the time pattern corresponding to at least one clock pulse of the data reading device. The invention moreover relates to an apparatus for distance measurement.

The invention provides a distributed system multilevel fault tolerance method under a cloud environment, which comprises a distributed application collaboration algorithm based on a virtual machine disk snapshot, which can back up the I/O state and the dependent operating system environment; a hierarchical fault detection and recovery mechanism, which can detect a physical layer, a virtual layer, a cloud platform layer, a virtual machine OS layer and an application layer fault in real time, and adopt the matched fault recovery method for different faults. Thus, the fault detection and recovery can be refined to modules, and the strategy of top-down stepwise recovery is adopted to minimize the recovery overhead; based on the virtual fault tolerance cluster service deployment strategy of the template, a user can use the virtual machine template to perform one-click deployment on the virtual machine fault tolerance cluster and upload the operation to perform collocation, and use the authorized fault-tolerant PaaS service. The invention can effectively solve the problems that the existing cluster deployment is complicated and the fault tolerance overhead is expensive, and can cope with the distributed application fault at all levels under the cloud computing environment in all directions.

The invention discloses a motion-sensing follow-type flight control system and method. The motion-sensing follow-type flight control system comprises a remote controller and an aircraft. The remote controller comprises a power supply system, an acceleration sensor, a digital-analog converter, a microcontroller and a radio transmission module. The aircraft comprises an information receiving module, an acceleration sensor, a gyroscope sensor, a barometer sensor, a data processing module and a control driving module. The remote controller obtains the acceleration magnitude of the hand through the acceleration sensor, collects motion data of the hand, and processes the motion data through the digital-analog converter. Then, the microcontroller calculates the acceleration change of the aircraft according to the acceleration change of the hand, and transmits a corresponding control instruction to the aircraft through the radio transmission module, so that the aircraft follows motions of the hand to cope and magnify the control motions guided by the hand, the aircraft is guided to fly in various corresponding flight paths by following the motions of the hand, and the immersive feeling is brought to an operator.

A surface-emission laser diode comprises a cavity region over a semiconductor substrate and includes an active layer containing at least one quantum well active layer producing a laser light and a barrier layer, a spacer layer is provided in the vicinity of the active layer and formed of at least one material, an upper and lower reflectors are provided at a top part and a bottom part of the cavity region, the cavity region and the upper and lower reflectors form a mesa structure over the semiconductor substrate, the upper and lower reflectors being formed of a semiconductor distributed Bragg reflector having a periodic change of refractive index and reflecting incident light by interference of optical waves, at least a part of the semiconductor distributed Bragg reflector is formed of a layer of small refractive index of Al_xGa_1-xAs (0<x≦1) and a layer of large refractive index of Al_yGa_1-yAs (0≦y<x≦1), the lower reflector is formed of a first lower reflector having a low-refractive index layer of AlAs and a second lower reflector formed on the first lower reflector, the second lower reflector has a low-refractive index layer of AlGaAs, any one layer constituting the cavity region contains In.

An ultraviolet-light-emitting semiconductor diode comprising an n-type ZnO layer with luminous characteristics formed on a transparent substrate, and a p-type semiconductor layer selected from the group consisting of SrCu2O2, CuAlO2 and CuGaO2, which is formed on the n-type ZnO layer to provide a p-n junction therebetween. The transparent substrate is preferably a single crystal substrate having atomically flat yttria-stabilized zirconia (YSZ) (III) surface. The n-type ZnO layer is formed on the transparent substrate having a temperature of 200 to 1200° C., and the p-type semiconductor layer selected from the group of SrCu2O2, CuAlO2 and CuGaO2 is formed on the n-type ZnO layer. The n-type ZnO layer may be formed without heating the substrate, and then the surface of the ZnO layer may be irradiated with ultraviolet light to promote crystallization therein.

The invention discloses a testing device for simulation and real-time detection of erosion of thermal barrier coatings of turbine blades, belonging to the field of simulation devices in a special service environment. The testing device comprises an erosion particle feeding system, a test testing platform (1), a temperature test system, an acoustic emission nondestructive testing system, a control platform and the like. An erect fixed shaft (101) is arranged on the test testing platform (1) and is connected with a horizontal supporting shaft. The testing device can be used for simulating the erosion service environment in which hard particles in a high-performance aero-engine repeatedly impact thermal barrier coatings of turbine blades due to the driving of airflow. By controlling the parameters such as erosion speed, angle, size and the like of erosion particles, the process that the coatings are eroded by different hard particles in the service process is realized and the real-time test and analysis of data, such as the temperature, the surface topography evolution, the interfacial oxidation of a sample and the like can be synchronously realized. The device can provide an important test platform for effectively assessing the erosion failure process and the failure mechanism of coatings of turbine blades in the special service environment.

The invention discloses a three-dimension remote romance system, based on graph transmission, which comprises interactive server terminal and user terminal. Wherein, the server terminal has mode file manage unit, three-dimension romance engine unit, graph code decode compress unit, and network transmission unit; the user terminal has network transmission unit and user interactive unit; when the server terminal receives the browse request of user terminal via the network transmission unit, the mode file manage unit reads the mode file that requesting browse; using three-dimension romance engine unit to romance generate graph data, via the graph code decode compress unit to be compressed, and via network transmission unit, to be sent to the user terminal; user terminal decodes the data of compressed graph, to display it via user interface. The invention uses progressive transmission, multistage delay memory, and the prediction based on user interaction to realize the balance between high real-time property and high accurate browse, to support quick beautiful romance effect to general user.

A flat panel X-ray imager using an amorphous selenium detector which uses a polymer grid structure within the X-ray conversion layer to form an interface between the X-ray conversion layer and the pixel electrodes. The grid structure provides an additional physical barrier between pixel electrodes that reduces electrical bridging due to crystallization of the amorphous selenium due to temperature increases while also reducing the delamination temperature by providing a good anchor to the selenium, as well as a “cushion” for thermal expansion or contraction of the pixel electrodes. The grid can further include one or more grid electrodes for effecting avalanche-gain within the X-ray conversion layer while minimizing dark current entry into the selenium layer from the pixel electrode.

The invention discloses a Hadoop parameter automatic optimization method based on performance pre-evaluation. The method comprises the following steps: statistically analyzing operational characteristics of an application run by a user on the Hadoop cluster to generate an output file; obtaining the output file and extracting from the output file of run time of various stages, processed and transmitted data, resources allocated for running the Hadoop application and a corresponding parameter configuration scheme of the Hadoop application, and according to the run time of various stages, the processed and transmitted data, the resources allocated for running the Hadoop application and the corresponding parameter configuration scheme of the Hadoop application in the output file, computing the total run time of the Hadoop application by utilizing MapReduce simulation technique; and according to the pre-evaluated performance of the Hadoop application under a current parameter configuration scheme and by utilizing the genetic algorithm, adjusting the corresponding parameter configuration scheme of the Hadoop application. The Hadoop parameter automatic optimization method based on performance pre-evaluation solves the problems of high cost, low efficiency, high threshold and capability of adding complexity of Hadoop codes in the existing method.

The invention discloses a video processing method. The method comprises the following steps: acquiring video data to be processed and a preset template data packet, wherein the template data packet comprises frame data and script information describing the play order of the frame data; performing frame extraction on the video data to be processed to obtain frame data of the video data; and performing synthetic processing on the frame data in the template data packet and the frame data of the video data according to the script information to generate a final video file. The invention also discloses a video processing device. Through adoption of the video processing method and device, the video processing efficiency is increased.

A blue phase liquid crystal composition and a LC display using the composition. The liquid crystal composition includes a first class including a highly polar compound and a second class including a highly conjugated liquid crystal compound. The blue phase liquid crystal display device includes first and second substrates each with polarizer on the exterior surface and the blue phase liquid crystal composition sandwiched therebetween with and patterned electrodes on one of the substrates or both substrates. The patterned electrodes can be T-shaped, chevron or v-shaped, thin comb like shape and can also be flat or trapezoidal. The device outputs different light transmissions from the electrically controllable induced birefringence of the blue phase LC material for a low driving voltage, high transmittance blue phase liquid crystal display device.

A system, method, and computer program product for making a product recommendation that pays cash or non-cash awards to a network of tip sharers/providers. The system may be used to increase traffic to a business by sharing recommendations, which may include discounts or other exclusive offerings, to network connections that may be interested in buying a product or service, or engaging in any activity, of the business. A user of the system shares a tip or recommendation with their friend, this friend becomes a customer after making use of the tip, and a fee paid by the business is used to pay cash incentives to the individual who provided the tip and/or the customer who purchased the product based upon the tip. Additional embodiments are also described for sharing cash incentives with a greater network of individuals including those that invite others to join the tip sharing system.

The invention discloses a detecting method of a weak periodic signal based on a chaotic system and wavelet threshold denoising, which comprises the following steps of: firstly carrying out wavelet decomposition on collected information, and determining a decomposition scale according to an actual signal-to-noise condition; denoising a wavelet high-frequency coefficient after the wavelet decomposition, wherein in the process of wavelet threshold denoising, the selection of a threshold is an important problem and directly influences a denoising result, so that the invention firstly provides a method for determining the threshold according to the scale for carrying out coefficient threshold processing to improve the denoising effect; reconstructing a signal after denoising, merging the signal to be detected after wavelet denoising reconstruction as one part of the driving force of the chaotic system into a chaotic detecting system, further inhabiting noise interference by utilizing the characteristics of the chaotic system for strong noise immunity, periodic weak signal sensitivity and the like, and effectively extracting the weak signal. The invention improves the detection threshold and the signal-to-noise ratio purely based on the chaotic detecting system.

Provided is a method of creating and teaching painting on a touch screen. The method of creating and teaching painting on the touch screen comprises a touch screen brush control manner and copy painting teaching. The touch screen brush control manner is a manner of controlling the thickness and the colors of brush lines. The touch screen brush manner utilizes a touch screen sensor, gathers a touching location, the size of the area of the touching location, the standing time of the touching location, and touching sliding speed, the degree of thickness and the concentration of the colors of lines which are drawn by the brush can be set through parameters. The initial degree of thickness and the concentration of the colors of the lines which are drawn by the brush are decided by the size of the area of the touching location and the standing time of the touching location, and the degree of thickness and the concentration of the colors of the lines are controlled by the parameter of the touching sliding speed when the brush which is touched and controlled starts to slide.

The invention discloses a method for selecting a preset value of an image-guided ultrasonic diagnostic apparatus. Information about general information of the preset value, a source preset value and modification parameters is automatically and associatively stored by fully utilizing important information about use habits of doctors, historical check images of patients and the like when the doctors store an image; and the information is visually displayed to the doctors through various user interfaces so as to rapidly acquire the preset value expected by the doctors under the guidance of the image information. The method greatly reduces the difficulty of adjusting the parameters of the preset value and the doorsill for the use of the ultrasonic diagnostic apparatus, reduces workloads of the doctors for manually adjusting the parameters, and enables less experienced doctors to rapidly adjust the optimized image quality suitable for the patients and visually learn the parameter adjusting experience from images adjusted by the experienced doctors so as to shorten own learning process.