37 results about "Common wave" patented technology

A receiving circuit mainly available in a digital modulation type communication system having a plurality of channels, which is capable of reducing power in a receiving system, simplifying the circuit and reducing the power consumption. Upside and downside frequencies corresponding to a central value between channels are separately supplied from a local frequency signal generating circuit 4 to first and second frequency converting circuits 2, 3 so that two output signals are developed with respect to one of a desired wave, upside channel and downside channel. The desired wave present in common in the first and second frequency converting circuits 2, 3 is extracted in a common wave extracting circuit 5, and a frequency offset of omegao existing in the output of the common wave extracting circuit 5 is removed a frequency offset circuit 6 and further an unnecessary frequency component is filtered by a filter 8. In addition, the common wave extracting circuit 5 has transformers and, using its inductances, raises the difference between the common wave and the non-common wave within the circuit to more than two times that of a prior art.

The invention relates to a composite superfine fiber wave-absorbing material and a preparation method thereof, relating to the technical field of preparing Fe3O4 through a sol-gel method, the technical field of preparing Fe3O4 / polyaniline composite nanoparticles through the situ polymerization method, the technical field of preparing the superfine fiber wave-absorbing material through an electrostatic spinning method and other technical fields. In the method in the invention, the principles of the sol-gel method and situ combination are adopted and the situ polymerization chemical reaction of FeSO4.7H2O, FeCl3, ammonium persulfate and other raw materials is utilized to prepare Fe3O4 / polyaniline composite particles with good dispersibility; and then the electrostatic spinning technology is adopted and the drum process is used to receive the obtained superfine fiber wave-absorbing material. In the method in the invention, the defects that the polyaniline is difficult to dissolve, the magnetic loss of the common wave-absorbing material is difficult to control, and the like are overcome. The prepared superfine fiber wave-absorbing material in the invention has high the advantages of strength and machinability, small fiber diameter and uniform distribution and can be widely used in various fields such as electronic screening, military camouflage and civil aviation and the like.

A method for distributing requests for artifacts to a regulated institution for risk assessment includes: storing a client profile including a risk rating value corresponding to a risk that the related regulated institution will not be compliant with a set of regulations; identifying a plurality of artifacts to be provided by the regulated institution, each artifact including a frequency, a weight, one of a plurality of waves, and one of a plurality of categories; assigning a priority value to each of the categories; grouping each artifact into a plurality of buckets, each bucket including artifacts that include a common wave and a common category, and wherein the artifacts are evenly distributed into the buckets; and generating a request schedule, wherein the request schedule is a schedule for the distribution of requests for artifacts included in each bucket over a predetermined period of time.

The invention belongs to the technical field of millimeter wave communication, and particularly relates to a method for jointly estimating multiuser downlink channels by use of CANDECOMP / PARAFAC decomposition (CP decomposition). Through a new layered pilot frequency transmission scheme, a training stage comprises a series of frames, each frame is divided into some subframes and in each subframe, all users use a common wave beam forming vector and transmits own pilot frequency information. In this way, a signal received by a base station can form a three-order tensor, then through the CP decomposition, the three-order tensor is decomposed into a series of one-order tensor linear combinations, and through a decomposed parameter matrix, the channel is estimated.

The invention discloses a coding and decoding method applicable to remote controller. Coding is carried out on a control message in a transmitting device, the bits of the control message are expressed by a coded string formed by 0 and 1 codes, then message code is transmitted by the transmitting device, and a carrier transmitting device is controlled to transmit corresponding radio wave according to the bits of the message code; wherein the period for expressing 0 and 1 codes of the control message all ranges from 100us to 2000us, the pulse widths of the front part of levels of 0 and 1 codes are the same, the pulse width of the rear part of level of 0 code is 50us widen than the pulse width of the front part of level of 0 code, and the pulse width of the rear part of level of 1 code is twice of pulse width of the front part of level of 1 code. The coding of the invention adopts methods forming codes containing common wave form, coding is simple and convenient; and the decoding method of the invention is simple in utilization and saves storing space, by adopting the invention, product development period can be reduced and product cost can be reduced.

The invention relates to a common mode wave forward transferring sensor calibrating method in correction self-adapting optical system. The feature is that: inducing parallel light from hole sharing spectroscope under the condition of full light path image difference correcting working light path of self-adapting optical system, the light would be reflected by reflecting array and return to hole sharing spectroscope, and reflecting to common mode wave forward transferring sensor, meanwhile calibrating two sets of wave front transferring sensors included in common wave forward transferring sensor. The invention saves cost and reduces workload.

Disclosed are a beam management method, a relay transceiver node, a terminal and a base station, the method comprising: enabling a relay transceiver node to determine a first resource group and a second resource group, and sending a beam in a first beam group according to a corresponding relationship between a resource unit included in the first resource group and a beam in the first beam group; sending beams in the second beam group according to the corresponding relationship between the resource units included in the second resource group and the beams in the second beam group, wherein whenthe resource units included in the first resource group and the resource units included in the second resource group have the same resource unit, the wave beam sent on the same resource unit is the common wave beam of the access link and the return link. The same resource unit is used to send the shared beam on the access link and the backhaul link is conducive to reducing the resource overhead ofthe beam management and reducing the total delay of the beam management process.

The invention relates to a multistage sub-array focusing MVDR wave beam forming method. According to the multistage sub-array focusing MVDR wave beam forming method, a common rapid frequency-domain broadband wave beam forming algorithm and a sub-array focusing MVDR algorithm are combined, a target orientation is firstly and roughly measured through the rapid frequency-domain broadband wave beam forming algorithm, then sub-arrays are divided, finally the target orientation is accurately measured through the sub-array focusing MVDR algorithm, and rapid and high-accuracy wave beam forming is achieved. The multistage sub-array focusing MVDR wave beam forming method includes the steps of 1, firstly completing rapid frequency-domain broadband wave beam forming on data received by a linear array sonar device through one-time time-domain FFT and airspace phase compensation, and completing initial estimation of the target orientation; 2, then carrying out peak detection on a common wave beam forming curve, after a target is found, carrying out sub-array dividing on a frequency-domain array signal, carrying out sub-array focusing MVDR wave beam forming on the orientation nearby the target, carrying out secondary orientation detection, and obtaining the more accurate target orientation. By means of the multistage sub-array focusing MVDR wave beam forming method, the performance of a whole sonar positioning system is improved, and meanwhile the requirements for the real-time performance, the high resolution and the tolerance are met.

A receiving circuit mainly available in a digital modulation type communication system having a plurality of channels, which is capable of reducing power in a receiving system, simplifying the circuit and reducing the power consumption. Upside and downside frequencies corresponding to a central value between channels are separately supplied from a local frequency signal generating circuit 4 to first and second frequency converting circuits 2, 3 so that two output signals are developed with respect to one of a desired wave, upside channel and downside channel. The desired wave present in common in the first and second frequency converting circuits 2, 3 is extracted in a common wave extracting circuit 5, and a frequency offset of omegao existing in the output of the common wave extracting circuit 5 is removed a frequency offset circuit 6 and further an unnecessary frequency component is filtered by a filter 8. In addition, the common wave extracting circuit 5 has transformers and, using its inductances, raises the difference between the common wave and the non-common wave within the circuit to more than two times that of a prior art.

The invention relates to an array signal processing technology. Aiming at the defect of the existing wave beam forming device such as low generality since only a single-shaped wave beam can be formed, the invention discloses a field programmable gate array (FPGA)-based common wave beam forming device. The device comprises a data preprocessing unit 1, a weighting and summing unit 2, a weight coefficient vector quantity generating unit 3, a data result processing unit 4, a control unit 5 and a multi-path selector 10. The device controls whether a buffer, an arithmetic device and a reversed arithmetic device are accessed by the multi-path selector, so that output wave beam-forming data can be controlled, and narrow-band wave beam, wide-band wave beam and multi-beam wave beam can be output. The device is used for generating various wave beam-forming data by a general structure, so that the device is flexible to control, the signal processing capability of a system is improved, and the device is good for the function expanding and updating of the system. Simultaneously, the development period can be shortened, and the cost can be saved by a general wave beam forming structure.

The invention discloses a method for integrating magnetic resonance imaging scanning and compressive sensing reconstruction. The method comprises the steps of collecting all data in a common-wave center area of a K space, collecting data outside an echo center area of the K space randomly, carrying out real-time image reconstruction through a compressive sensing technology according to the data of the common-wave center area of the K space and the randomly-collected data of the K space, improving the quality of reconstructed images continuously and displaying the reconstructed images in real time. The compressive sensing technology is utilized for reconstructing and displaying the magnetic resonance images in real time, the progress of the magnetic resonance imaging scanning can be observed in real time, the magnetic resonance imaging scanning can be ended in advance at any time according to the quality of the images, and the time for the magnetic resonance imaging scanning is effectively shortened. The invention further discloses a device for integrating the magnetic resonance imaging scanning and the compressive sensing reconstruction.

The invention relates to a non-conformal measurement near field acoustic holography sound field rebuilding method, and relates to the technical field of acoustics. The method includes the steps that spherical wave function q(x,y) in a common wave superposition method (see the formula in the description) is replaced by a compound ray wave function with principal value directivity, by means of the method, when the holographic plane and a sound source shape are under the non-conformal condition, namely a planar array, a spherical array, a cylindrical surface array and other regular shape arrays are adopted in a holographic measurement plane, and a sound source is in an any shape, a system matrix is still in the good state of main diagonal domination, magnitude equivalence and approximate symmetry, numerical value inversion can be directly conducted on the system matrix efficiently and accurately, approximate solutions of ill-posedness problems can be obtained without using a regularization method or using the regularization method less, some variables of virtual equivalent sources are analyzed and prolongated to a complex space from a traditional real space, appropriate virtual damp is added, and therefore unique solution is obtained in the full wave number field.

The invention relates to an intelligent pillow and a usage method thereof, and belongs to the technical field of bedding articles. The pillow comprises a shoulder pad, a wave-shaped pillow inner and a controller; the pillow inner comprises a neck area and a head area, the shoulder pad is detachably connected to the end of the neck area of the pillow inner, the height of the neck area of the pillow inner is larger than that of the head area of the pillow inner, the interior of the neck area is provided with a cavity and a heightening portion, the controller is installed on one side of the pillow, and the heightening portion is arranged in the cavity and connected with the controller. The intelligent pillow is obtained by improving a common wave-shaped pillow, and the controller is arranged to automatically regulate the heightening portion; in addition, the controller recognizes and estimates the face posture when a user sleeps, the face posture and the neck position are estimated, therefore, the heightening portion can be moved to the position under the neck in time, and the problems that the height of a pillow is fixed and single and cannot be changed according to the sleeping posture of the user are solved.

The invention discloses a material electromagnetic parameter measuring system which comprises a transmitting antenna, a receiving antenna and a sample bracket positioned between the transmitting antenna and the receiving antenna. A measured sample is arranged on the sample bracket; and besides the surface on the sample bracket, which is occupied by the measured sample, other surfaces on the sample bracket are covered by wave-absorbing materials. According to the invention, the sample is clamped by the sampled sample bracket and the wave-absorbing materials are arranged at both sides of the sample bracket, so that the material electromagnetic parameter measuring system disclosed by the invention can obtain material electromagnetic parameters without adopting an expensive lens antenna. Furthermore, the wave-absorbing materials in the material electromagnetic parameter measuring system disclosed by the invention can be selected from commercially common wave-absorbing materials such as wave-absorbing sponges and the like; the wave-absorbing materials can also be designed by utilizing a metamaterial principle; and the wave-absorbing materials designed by utilizing the metamaterial principle has the advantages of small thickness, wide wave-absorbing frequency band and good wave-absorbing performance.

The invention relates to a material for a concrete wave wall. The material for the wave wall is prepared from, in parts by weight, 1 part of 52.5 or 42.5 cement, 0.3-0.5 parts of water, 0.1-0.3 parts of steel slag powder, 2-4 parts of nickel slag, 0.05-0.25 parts of rubber particles, 2-5 parts of stone, 0.01-0.05 parts of a waterborne epoxy resin emulsion and waterborne epoxy curing agent and 0.01-0.05 parts of an expanding agent. The durable problems that common wave walls are weak in impermeability and freezing resistance, not corrosion-resistant and the like are solved, and meanwhile, the waste resource waste and environmental pollution problems are solved to a certain extent by using the steel slag powder, the nickel slag and the rubber particles.

The invention provides a unique processing technique used to eliminate the defects in common wave satins in terms of raw materials and fabric styles; the technical proposal adopted is that: 50 D / 72F terylen fine denier FDY filaments are adopted as the raw materials of warps and wefts, and are woven on hydraulic looms with unique weaving process according to the weaving specifications required by the customers, and 5 or 8 satin weaves are chosen; and then the fabrics are finished by use of advanced dyeing and finishing technology. The width of the product is optimally controlled at a range of 160 plus or minus 20cm, and the fabric weight is advisably controlled within the range of 120 plus or minus 5 g / m. The invention has the advantages that the surface materials produced by the processing technique is superior in terms of quality and styles, has good resistance to wrinkles and draping property; the hand feel and texture can rival with those of the linen or silk fabrics with natural fibers, the production costs are lowered and the added value of the products are enhanced. Therefore, the fabrics can be widely applied as the surface materials of top-grade leisure jackets, garments for children, and coats for men and women in autumn and winter.

The present invention relates to a pillow and an application method thereof, and belongs to the technical field of beddings. The pillow comprises a shoulder pad and a wave-shaped pillow core; the pillow core comprises a neck area and a head area; and the shoulder pad is detachably connected to the end head of the neck area of the pillow core. The height of the neck area of the pillow core is higher than that of the head area, and a cavity and a heightening portion are disposed in the neck area. The pillow also comprises a controller, the controller is installed at one side of the pillow, and the heightening portion is disposed in the cavity and connected with the controller. A common wave-shaped pillow is improved, and the controller is disposed to automatically adjust the heightening portion. In addition, the controller identifies and evaluates a face posture of a user when the user is sleeping, estimates the posture of the face and the position of the neck, and timely shifts the heightening portion below the neck. The problem that in the prior art, the height of a pillow is fixed and cannot be changed according to the sleep posture of the user is solved.

A method for monitoring the time synchronization of a total of n transmitters in a common wave network is described in which a reference total pulse response is compared with a measured total pulse response belonging to the transmission channels of the n transmitters of the common wave network. A reference pulse response is fixed in the reference total pulse response in relation to the pilot pulse response, on the basis of which the remaining reference pulse responses are references to classify synchronization errors in the common wave network in various synchronization error categories.

The method for monitoring the stability of the carrier frequency (ωi) of identical transmitted signals (si(t)) of several transmitters Si of a single-frequency network is based upon a calculation of a carrier-frequency displacement Δωi of a carrier frequency ωi of a transmitter Si relative to a carrier frequency ω0 of a reference transmitter S0. For this purpose, the phase-displacement difference (ΔΔΘi(tB2−tB1)) caused by the carrier-frequency displacement Δωi between a phase displacement ΔΘi(tB1) at a first observation time tB1 and a phase displacement ΔΘi(tB2) at a second observation time tB2 of a received signal (ei(t)) of the transmitter Si associated with the respective transmitted signal (si(t)) is determined relative to a received signal e0(t) of the reference transmitter S0 associated with the reference transmitted signal s0(t).

The invention relates to an array signal processing technology. Aiming at the defect of the existing wave beam forming device such as low generality since only a single-shaped wave beam can be formed, the invention discloses a field programmable gate array (FPGA)-based common wave beam forming device. The device comprises a data preprocessing unit 1, a weighting and summing unit 2, a weight coefficient vector quantity generating unit 3, a data result processing unit 4, a control unit 5 and a multi-path selector 10. The device controls whether a buffer, an arithmetic device and a reversed arithmetic device are accessed by the multi-path selector, so that output wave beam-forming data can be controlled, and narrow-band wave beam, wide-band wave beam and multi-beam wave beam can be output. The device is used for generating various wave beam-forming data by a general structure, so that the device is flexible to control, the signal processing capability of a system is improved, and the device is good for the function expanding and updating of the system. Simultaneously, the development period can be shortened, and the cost can be saved by a general wave beam forming structure.

The invention relates to a welding method, device and system for a printed board assembly with a fine-pitch connector. The method comprises the steps that the fine-pitch connector, with screws, in theprinted board assembly is determined, wherein the distance between the fine-pitch connector and a fine-pitch connector pin is less than a first preset distance threshold value; the screws of the fine-pitch connector are taken down and replaced by technical screws for assembly; a selective wave crest welding mode is adopted for conducting technical welding on the fine-pitch connector pin; after welding is qualified, the technical screws of the fine-pitch connector are taken down, and the screws are assembled on the fine-pitch connector. By adopting the scheme, a traditional manual welding modeand a common wave crest welding mode are changed, the welding quality of the fine-pitch connector is improved, and the welding efficiency is greatly improved.

Common wave and sideband mitigation communication systems and methods are provided that can be used with both wireless and wired communication links. The systems and methods provided can enable faster data rates, greater immunity to noise, increased bandwidth / spectrum efficiency and / or other benefits. Applications include but are not limited to: cell phones, smartphones (e.g., iPhone, BlackBerry, etc.), wireless Internet, local area networks (e.g., WiFi type applications), wide area networks (e.g., WiMAX type applications), personal digital assistants, computers, Internet service providers and communications satellites.

The present invention provides a music and speech synthesize device for mobile communication terminal which can synthesize the speech of the user and save the speech in music used in cabaret downloaded from mobile communication terminal by using common wave shape synthesize mode and then play the speech and a method. The device of the invention includes: a speech WAV file converter, a first memory, a MIDI-WAV file converter, a second memory, a WAV file synthesizer, and a WAV-MIFI file converter. In addition, the method of the invention includes: step 1, converting the music file to WAV format while playing the music file and storing it to an inner memory; step 2, converting the signal input by the microphone while playing the music to WAV format and storing it to the inner memory; step 3, synthesizing the music converted to WAV format and the speech WAV files; step 4, converting the synthesized music and speech WAV files to music data file (MIDI file).

The invention relates to a material for a concrete wave wall. The material for the wave wall is prepared from, in parts by weight, 1 part of 52.5 or 42.5 cement, 0.3-0.5 parts of water, 0.1-0.3 parts of steel slag powder, 2-4 parts of nickel slag, 0.05-0.25 parts of rubber particles, 2-5 parts of stone, 0.01-0.05 parts of a waterborne epoxy resin emulsion and waterborne epoxy curing agent and 0.01-0.05 parts of an expanding agent. The durable problems that common wave walls are weak in impermeability and freezing resistance, not corrosion-resistant and the like are solved, and meanwhile, the waste resource waste and environmental pollution problems are solved to a certain extent by using the steel slag powder, the nickel slag and the rubber particles.

A backlight unit and a liquid crystal display device using the backlight unit. The backlight unit includes a light source section having a red light source, a green light source, and a blue light source, and a light source control unit that generates a common control wave and drives each of the red light source, green light source, and blue light source using an external dimming signal and the common control wave. device. The light source controller may include a pulse width modulation controller. The common control wave can be triangular. The common triangular waves generated by the triangular wave generator drive the respective red, green and blue light sources. The size of the PWM controller can be reduced and flicker can be substantially eliminated.

An arrangement for synchronizing a transmission time of a digital data stream in individual high-frequency transmitters of a common-wave network operating according to an ATSC standard and transmitting identical data at an identical frequency. The stream generated in a master station is supplied to the transmitters as a periodic succession of data frames, and a setpoint transmission time is calculated in the transmitters from a synchronizing time stamp inserted into the data frames within the master station and from a time reference used in the master station and transmitters, while the transmission of the frames by the transmitter is determined by a system clock in the transmitters. The setpoint transmission time is compared with the actual transmission time determined by the clock, and the clock frequency is regulated by a regulating circuit so that the actual transmission time determined by the clock corresponds with the calculated setpoint transmission time.

Common wave and sideband mitigation communication systems and methods are provided that can be used with both wireless and wired communication links. The systems and methods provided can enable faster data rates, greater immunity to noise, increased bandwidth / spectrum efficiency and / or other benefits. Applications include but are not limited to: cell phones, smartphones (e.g., iPhone, BlackBerry, etc.), wireless Internet, local area networks (e.g., WiFi type applications), wide area networks (e.g., WiMAX type applications), personal digital assistants, computers, Internet service providers and communications satellites.