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27 results about "Filter tuning" patented technology
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Filter, filter tuning method and related equipment
A filter, a filter tuning method and related equipment, the filter comprises a waveguide port and a periodic structure, the periodic structure is communicated with the waveguide port, the periodic structure is centrosymmetric, the periodic structure comprises m metal cavities, the m metal cavities are communicated with each other, the m metal cavities are the same in size, and m is an integer greater than or equal to 2. The sizes and the periods of the m metal cavities are related to the tuning parameters of the filter, so that the tuning parameters of the filter can be determined by directly adjusting the sizes and the periods of the m metal cavities, the requirements can be quickly met, and the design efficiency of the filter is improved.
Owner:HUAWEI TECH CO LTD
Active noise reduction method, device, active noise reduction earphone and storage medium
The embodiments of the present application provide an active noise reduction method, device, active noise reduction headphones and storage medium, which relate to the field of audio noise reduction. A processor applied to an active noise reduction headphone, the active noise reduction headphone includes a feedforward active noise reduction filter, the feedforward active noise reduction filter includes an IIR filter and a FIR filter; the active noise reduction method includes: obtaining a current first transfer function value; adjusting the IIR filter to a target configuration corresponding to the current first transfer function value based on the current first transfer function value; estimating the current overall frequency response required for the feedforward active noise reduction filter under the current first transfer function value; determining the target frequency response of the FIR filter based on the target configuration and the current overall frequency response; adjusting the FIR filter based on the target frequency response to use the adjusted FIR filter for noise reduction. This method helps to reduce the chip area required for the feedforward active noise reduction filter.
Owner:HENGXUAN TECH (BEIJING) CO LTD
Adaptive tuning networks with direct mapped multiple channel filter tuning
PendingUS20250150052A1Multiple-port networksNetwork traffic/resource managementFilter tuningLow frequency band
A flexible multi-path RF adaptive tuning network switch architecture that counteracts impedance mismatch conditions arising from various combinations of coupled RF band filters, particularly in a Carrier Aggregation-based (CA) radio system. In one version, a digitally-controlled tunable matching network is coupled to a multi-path RF switch in order to provide adaptive impedance matching for various combinations of RF band filters. Optionally, some or all RF band filters include an associated digitally-controlled filter pre-match network to further improve impedance matching. In a second version, some or all RF band filters coupled to a multi-path RF switch include a digitally-controlled phase matching network to provide necessary per-band impedance matching. Optionally, a digitally-controlled tunable matching network may be included on the common port of the multi-path RF switch to provide additional impedance matching capability. In a third version, CA direct mapped adaptive tuning networks include filter tuning blocks for selected lower frequency bands.
Owner:PSEMI CORP
Model training method combining parameter adjustment record screening and large model and related product
The invention provides a model training method combining parameter adjustment record screening and a large model and a related product. According to one specific mode of the method, simplified historical parameter adjustment records are obtained through screening from historical parameter adjustment records. And analyzing a change rule of the simplified historical parameter adjustment record by using the large model, outputting a next round of hyper-parameter configuration, and performing a next round of training by using the next round of hyper-parameter configuration. Therefore, the method can reduce the number of tokens for large model analysis, improve the speed of generating the next-round hyper-parameter configuration, enable the next-round hyper-parameter configuration to be explained, and determine the feature distance between two hyper-parameter configurations through the feature sensitivity of each hyper-parameter based on the target machine learning model to the training evaluation result. And parameter adjustment records are screened based on the characteristic distance between the hyper-parameter configurations, so that high-value simplified parameter adjustment records can be obtained. The lower round of hyper-parameter configuration obtained by utilizing a large model and based on a more representative high-value simplified parameter adjustment record is easier to understand and more stable.
Owner:BAIRONG FINANCIAL INFORMATION SERVICE CO LTD
Automated cavity filter tuning using machine learning
A test and measurement instrument connects to one or more devices under test (DUT) having tuning screws, and to a robot, and has one or more processors to: command the robot to position the tuning screws on the DUTs to one or more sets of positions, each set of positions being a parameter set for the tuning screws, acquire a set of operating parameters for each parameter set from the DUTs, generate a parameter set image for each set, create a combined image of the parameter set images, provide the combined image to a machine learning system to obtain a predicted set of values, adjust the predicted set of values to produce a set of predicted positions, command the robot to position the tuning screws to positions in the set of predicted positions, obtain a set of tuned operating parameters from the DUTs, and validate operation of the DUTs.
Owner:TEKTRONIX INC
Bandpass filter, filter tuning method, and tuning device
The application relates to a band-pass filter, a filter frequency modulation method and a frequency modulation device. The band-pass filter comprises a signal layer, a first ground layer and a second ground layer arranged from top to bottom; the signal layer and the first ground layer are coupled and connected through a first dielectric unit; the first ground layer and the second ground layer are coupled and connected through a second dielectric unit, and a metal probe penetrating through the second dielectric unit is arranged between the first ground layer and the second ground layer; the number and position of the metal probe are used for adjusting the filtering frequency band of the band-pass filter on the signal. The band-pass filter can adjust the working frequency band through the probe, and the scene applicability of the band-pass filter can be improved.
Owner:RESERCH ON ELECTRICAL APPLIANCES OF SHANGHAI ASTRONAUTICS CO LTD
Filter tuning screw material detection device
The invention relates to the technical field of filter detection devices, and discloses a filter tuning screw material detection device which comprises a detection screw and a second nut, the second nut is in threaded connection with the outside of the detection screw, a stud is arranged in an inner cavity of the detection screw, a magnet is arranged outside the stud, and the magnet is in threaded connection with the detection screw. A spring is arranged in an inner cavity of the detection screw rod, a third screw is in threaded connection with the outside of the detection screw rod, a gasket is arranged between the third screw and the detection screw rod, a second screw is arranged at the top of the detection screw rod, a first screw is arranged in an inner cavity of the second screw, and a first nut is in threaded connection with the outside of the first screw. The filter tuning screw material detection device ensures that screws made of corresponding materials are installed at different positions of a filter, and stabilizes the signal frequency of the filter. Meanwhile, the device is simple in structure and convenient to operate, the detection difficulty of production personnel is reduced, the detection efficiency is improved, and inconvenience brought to filter production by misloading is reduced.
Owner:SHENZHEN NUOXINBO COMM CO LTD
Filter for communication device
The present disclosure relates to a communication device filter. Particularly, the communication device filter comprises: a filter body which is open in the thickness direction such that a part of a dielectric material-filled space is formed therein; a filter tuning cover coupled in the open thickness direction so as to cover the filter body, thereby forming the remainder of the dielectric material-filled space; a frequency tuning panel comprising a tuning frame having multiple tuning bars disposed in the dielectric material-filled space as a single layer with regard to the thickness direction so as to adjust the distance of spacing from multiple resonators disposed in the dielectric material-filled space; and a resonance substrate comprising a resonance frame disposed in the dielectric material-filled space such that the multiple resonators constitute a single layer with regard to the thickness direction.
Owner:KMW INC
Filter, filter tuning method, and related device
A filter, a filter tuning method, and a related device. The filter comprises a waveguide port and a periodic structure; the periodic structure is communicated with the waveguide port, and the periodic structure is centrosymmetric; and the periodic structure comprises m metal cavities, the m metal cavities are communicated with each other, the sizes of the m metal cavities are the same, and the sizes and periods of the m metal cavities are related to tuning parameters of the filter. Therefore, the tuning parameters of the filter can be directly determined by adjusting the sizes and periods of the m metal cavities, thereby quickly satisfying requirements, and improving the design efficiency of the filter.
Owner:HUAWEI TECH CO LTD
Adjustment support device
PCT designated stageWO2026004007A1Motor parameters estimation/adaptationFilter tuningElectric machine
Provided is a technique capable of maintaining a stability margin before adjustment of the gain filter of a motor control device even after adjustment. An adjustment support device 20 comprises: a frequency characteristic measurement unit 300 for measuring the frequency characteristics of a motor control device 1; a frequency characteristic acquisition unit 21 for acquiring frequency characteristics before adjustment from the frequency characteristic measurement unit 300; a stability margin reading unit 22 for reading a stability margin from the frequency characteristics acquired by the frequency characteristic acquisition unit 21; a stability margin setting unit 23 for setting the stability margin read by the stability margin reading unit 22 as a target margin for adjustment; and an adjustment unit 400 for adjusting a gain and a filter coefficient on the basis of the target margin.
Owner:FANUC LTD
Filter for communication device
The present invention relates to a filter for a communication device, and more particularly, to a filter for a communication device, comprising: a filter body which is open in the thickness direction and in which a part of a dielectric filling space is formed; a filter tuning cover coupled in a thickness direction of the opening to cover the filter body and to form a remaining portion of the dielectric filling space; a resonance substrate including a resonance frame in which a plurality of resonators are disposed so that the plurality of resonators form a single layer in the thickness direction in the dielectric filling space; a frequency tuning panel including a tuning frame in which a plurality of tuning rods are disposed, the plurality of tuning rods being disposed in a single layer with respect to a thickness direction in the dielectric filled space to adjust a distance spaced apart from the plurality of resonators disposed in the dielectric filled space; and a spacing part which is formed in a step shape and is integrated with any one of the filter tuning cover and the frequency tuning panel.
Owner:KMW INC
Filter for communication device
According to various embodiments of the present invention, disclosed is a filter for a communication device, which comprises: a filter body having at least one cavity which is a predetermined space formed therein and having one side open; a filter tuning cover provided to cover the open side of the filter body and having a plurality of screw installation holes formed therein; a plurality of tuning screws fastened to the plurality of screw installation holes, respectively, and performing fine frequency adjustment by adjusting a separation distance from a front end of a resonator provided inside the cavity; and a screw holding member for temporarily fixing the plurality of tuning screws to the filter tuning cover, until the fine frequency tuning is performed, by means of deforming a part of the filter tuning cover using each of the plurality of tuning screws.
Owner:HINGEON CO LTD
Filter for communication device
Disclosed, according to various embodiments of the present invention, is a filter for a communication device, the filter comprising: a filter body including a cavity; and a resonator for filter tuning, the resonator being fixed to the bottom surface of the cavity, having a hollow space formed therein, and provided with a resonance bar made of a material which shape-changes in the cavity due to the external force applied via the hollow space and allows frequency to be adjusted.
Owner:HINGEON CO LTD
Press-fit resonator, filter comprising same, and method for manufacturing filter
The present invention relates to a press-fit resonator, a filter comprising same, and a method for manufacturing a filter, wherein the press-fit resonator is fixed to a resonance rod installation boss formed on the bottom surface of a cavity of a filter body in a press-fitting manner, and comprises an upper end bonding part to which a resonance disc panel is coupled, and a resonance rod body of which a lower end press-fit portion press-fitted onto the resonance rod installation boss has a tapered outer circumference. The press-fit resonator comprises a filter tuning cover which covers one open surface of the filter, wherein, when the press-fit resonator is bonded by solder cream applied after the press-fit resonator has been press-fitted onto the resonance rod installation boss, the filter tuning cover is also simultaneously bonded to the filter body by solder cream applied to the filter body, thus providing the advantages of minimizing the error range of frequency measurement and ensuring product quality.
Owner:KMW INC
Speaker output characteristic correction system and sound system
A controller calculates individual parameters, including nonlinear parameters of a speaker model, based on a measured displacement of a vibration system of a speaker. A sound generator outputs an audio signal, and an output flattening filter adjusts gains of individual bands of an audio signal so that a frequency characteristic of a volume of sound output by the speaker is flattened in accordance with a speaker model obtained by linearizing calculated parameters and outputs a resultant audio signal. A nonlinear inverse filter corrects the resultant audio signal by signal processing adapted to the gains of the output flattening filter so that the nonlinear distortion of the speaker is suppressed in accordance with the speaker model including the nonlinear parameters and outputs the corrected audio signal as an output audio signal to the speaker via an amplifier.
Owner:ALPS ALPINE CO LTD
Cavity filter tuning device
The application provides a debugging device of a cavity filter, which is used for applying an adjusting force to a cover plate assembly of the cavity filter, the cover plate assembly comprising a cover plate body and a resonant tube connected with the cover plate body, and the debugging device comprising a support and an adjusting piece slidably arranged on the support, the adjusting piece being used for applying a downward pressing force or an upward pulling force to the cover plate body or the resonant tube to adjust a position state of the resonant tube relative to the cover plate body. The debugging device of the cavity filter provided by the application is separated from the cavity filter after adjustment, and thus the problem that a tuning screw is still assembled on the cover plate after adjustment and is prone to loosening or misoperation to affect the adjusted radio frequency parameters can be avoided.
Owner:ANHUI TATFOOK TECH CO LTD
Filtering tuning device
Owner:GUANGXI GUOREN TECH CO LTD +1
Filter for communication device
The present disclosure relates to a communication device filter. Particularly, the communication device filter comprises: a filter body which is open in the thickness direction such that a part of a dielectric material-filled space is formed therein; a filter tuning cover coupled in the open thickness direction so as to cover the filter body, thereby forming the remainder of the dielectric material-filled space; a frequency tuning panel comprising a tuning frame having multiple tuning bars disposed in the dielectric material-filled space as a single layer with regard to the thickness direction so as to adjust the distance of spacing from multiple resonators disposed in the dielectric material-filled space; and a resonance substrate comprising a resonance frame disposed in the dielectric material-filled space such that the multiple resonators constitute a single layer with regard to the thickness direction.
Owner:KMW INC
Filter for communication device
The present invention relates to a filter for a communication device, and more particularly, to a filter for a communication device, comprising: a filter main body in which at least one cavity as a predetermined space is formed and which is open at one side; a filter tuning cover configured to cover one side of the opening of the filter body and formed with a plurality of screw mounting holes; a plurality of tuning screws which are respectively fastened to the plurality of screw mounting holes and perform fine frequency adjustment by adjusting the spacing distance from the tip of a resonator disposed inside the cavity; and a screw holding member that temporarily fixes the plurality of tuning screws to the filter tuning cover before the fine frequency tuning is performed by an action of deforming the shape of a portion of the filter tuning cover using the plurality of tuning screws, respectively. Furthermore, the present invention provides the advantage of minimizing the occurrence of PIMD and enabling fine frequency adjustment to be easily performed.
Owner:XINJIYAN CO LTD
Filter for communication device
The present invention relates to a filter for a communication device, and more particularly, to a filter for a communication device, comprising: a filter body which is open in a thickness direction and in which a part of a dielectric filling space is formed; a filter tuning cover coupled in a thickness direction of the opening to cover the filter body and to form a remaining portion of the dielectric filling space; a frequency tuning panel including a tuning frame on which a plurality of tuning rods are disposed, the plurality of tuning rods being disposed in a single layer with respect to a thickness direction within the dielectric-filled space to adjust a distance spaced apart from a plurality of resonators disposed within the dielectric-filled space; and a resonance substrate including a resonance frame in which the plurality of resonators are disposed so that the plurality of resonators form a single layer with respect to the thickness direction within the dielectric-filled space.
Owner:KMW INC
Filter for communication device
The utility model relates to a filter for communication equipment, in particular to the filter for the communication equipment, which comprises a filter main body, at least one cavity serving as a predetermined space is formed inside the filter main body, and one side of the filter main body is opened; a filter tuning cover configured to cover one side of the opening of the filter body and formed with a plurality of screw mounting holes; a plurality of tuning screws which are fastened to the plurality of screw mounting holes, respectively, and which adjust the spacing distance from the tip of the resonator disposed inside the cavity; and a guide nut inserted into a screw mounting hole for the filter tuning cover to mount the tuning screw. Wherein the filter for a communication device forms at least one solder paste coating slot (hereinafter referred to as a "solder slot" for short) formed in any one of the plurality of tuning screws and the guide nut, and the solder paste coating slot (hereinafter referred to as a "solder slot") is formed in any one of the plurality of tuning screws and the guide nut. After the frequency is tuned by each of the plurality of tuning screws, a solder material for bonding the plurality of tuning screws to the screw mounting holes is inserted.
Owner:XINJIYAN CO LTD
Control assistance device, control system and filter adjustment method
While achieving resonance suppression, allocation of filters is determined in a manner that satisfies a constraint on the number of filters. A control assistance device that performs assistance for setting a plurality of first filters provided in a servo control device that controls a motor, the control assistance device including: a resonance detection section that detects a plurality of resonance points in a frequency characteristic of an input-output gain and a phase lag of an input and an output of the servo control device measured from an input signal and an output signal that vary with frequency; a filter setting section that sets a plurality of second filters that exceed the number of the plurality of filters in order to suppress the plurality of resonance points; and a grouping section that groups the plurality of second filters to set the plurality of first filters.
Owner:FANUC LTD
Tuning device and tuning method
The present invention belongs to the technical field of filter production. On the one hand, a tuning device is disclosed, which includes a machine, a carrier, an adjustment mechanism, a detection mechanism, a visual positioning mechanism and a transfer mechanism. The transfer mechanism moves the carrier to the detection mechanism, the adjustment mechanism and the visual positioning mechanism. The detection mechanism detects the waveform of the cavity filter to detect whether the cavity filter is a good product or a semi-finished product. The visual positioning mechanism visually locates the position of the screws and nuts on the semi-finished cavity filter, and detects the position of the screws and nuts that need to be adjusted. The transfer mechanism can align each screw and nut with the adjustment mechanism so that the adjustment mechanism can adjust the screws and nuts that need to be adjusted to tune the waveform of the cavity filter. On the other hand, the present invention discloses a tuning method including the above-mentioned tuning device. The tuning device unifies the detection standard of the cavity filter's waveform, improves the efficiency of the cavity filter tuning operation, and reduces the cost.
Owner:SHENZHEN ZHONGKE HUAMAI TECH CO LTD
Filter for communication device
The present disclosure relates to a filter for a communication device and, more specifically, includes: a filter body that is open in the thickness direction and has formed therein part of a dielectric-filled space; a filter tuning cover that is coupled in the opened thickness direction to cover the filter body and forms the remainder of the dielectric-filled space; a resonance substrate including a resonance frame in which a plurality of resonators are arranged to form a single layer with respect to the thickness direction in the dielectric-filled space; a frequency tuning panel including a tuning frame including a plurality of tuning bars arranged in a single layer in the thickness direction in the dielectric-filled space in order to adjust a separation distance from the plurality of resonators arranged in the dielectric-filled space; and a spacer portion integrally formed with a step on one of the filter tuning cover and the frequency tuning panel.
Owner:KMW INC
Filter for communication device
The present disclosure relates to a filter for a communication device and, more specifically, includes: a filter body that is open in the thickness direction and has formed therein part of a dielectric-filled space; a filter tuning cover that is coupled in the opened thickness direction to cover the filter body and forms the remainder of the dielectric-filled space; a resonance substrate including a resonance frame in which a plurality of resonators are arranged to form a single layer with respect to the thickness direction in the dielectric-filled space; a frequency tuning panel including a tuning frame including a plurality of tuning bars arranged in a single layer in the thickness direction in the dielectric-filled space in order to adjust a separation distance from the plurality of resonators arranged in the dielectric-filled space; and a spacer portion integrally formed with a step on one of the filter tuning cover and the frequency tuning panel.
Owner:KMW INC
A cavity filter tuning method and tuning device
The application provides a cavity filter tuning method and a tuning device, and belongs to the technical fields of microwave communication and filter. The cavity filter tuning method comprises the following steps: preparing a cavity filter; applying a spinning pressure to a region of a cover corresponding to a resonator assembly in a direction towards the resonator assembly, so that the region of the cover corresponding to the resonator assembly plastically deforms in a direction towards the resonator assembly to form a plastic deformation region, and the distance between the plastic deformation region and the resonator assembly reaches a preset distance. The tuning device comprises a loading disc, a first power part and at least one loading ram. The loading ram is connected with the loading disc and deviates from the central axis of the loading disc. The first power part is connected with the loading disc to rotate the loading disc along the central axis of the loading disc, and then the loading ram rotates to press against the cover to form the plastic deformation region. The method and device aim to solve the technical problem of repeated iteration and complexity in tuning in the prior art.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY
A cavity filter tuning fixture
ActiveCN224317649UAccurate alignmentavoid lateral displacementMeasurement instrument housingFilter tuningClassical mechanics
This application relates to the technical field of communication equipment testing and discloses a cavity filter tuning fixture. The fixture includes a test base, a tuning fixing block, and a tuning clamp. The filter under test (DUT) is placed on top of the test base, and the tuning fixing block is mounted on top of the DUT. The tuning fixing block is detachably connected to the test base, and the tuning clamp is movably connected to the bottom of the test base. The tuning fixing block has a first guide hole, and the top interface of the DUT is inserted into the bottom end of the first guide hole. A test cable interface passes through the top end of the first guide hole and connects to the top interface of the DUT. A guide step protrudes from the top of the test base, and the guide step has a second guide hole. The guide step is inserted into the bottom interface of the DUT, and another test cable interface passes through the bottom end of the second guide hole and connects to the bottom interface of the DUT. The tuning clamp engages with the test cable interface. This application enables rapid installation of 5G filters onto the test fixture, saving assembly time and improving production efficiency.
Owner:HASSELMAN (SHENZHEN) TECHNOLOGY CO LTD