33results about How to "Avoid complex design" patented technology

The invention discloses an ultrasonoscopy speckle noise filtering method based on a Bayesian model. The method specifically comprises the steps that firstly, a non-local filtering model based on the Bayesian model is established; secondly, speckle noise in the ultrasonoscopy on which logarithmic compression is carried out is fitted through Gamma distribution, and then a weighting function based on the Pearson statistics distance is obtained; thirdly, the variable in the non-local filtering model is solved; fourthly, the speckle noise in the ultrasonoscopy is filtered through the solved non-local filtering model. The speckle noise in the ultrasonoscopy can be effectively filtered out, and the imaging definition of the ultrasonoscopy is improved.

The invention discloses a method, system and terminal for measuring brightness of a display screen. The method includes the following steps: S1: Acquiring photographed images when the display screen displays different grayscale images at different working distances, and calculating the brightness of each photographed image Brightness information; S2: Establish a correction model between the display screen at different working distances and different gray scales and the corresponding brightness according to the brightness information of different captured images; S3: Obtain when the display screen displays any gray scale picture at any working distance and calculate the first luminance value of the captured picture; S4: calibrate the first luminance value of the display screen according to the working distance, the grayscale value of the grayscale picture, and the calibration model to obtain the corrected luminance value; the present invention eliminates the deviation of camera acquisition data caused by the working distance of the display screen and the gray scale value, improves the accuracy of camera imaging, thereby improving the accuracy of display screen brightness and chromaticity measurement.

The invention discloses a method for detecting the roughness of the etched side wall by using the capacitance change. The above-mentioned process flow is only added before the etching process in the functional area, so as to avoid increasing the complexity of the design of the functional device; the capacitance change of the detection area is used to reflect the side wall of the functional area Roughness, which reduces the error caused by the small size, and avoids operations that damage the device structure such as fractures, and realizes non-destructive testing of the etched structure; the number of detection areas is determined by the size of the etching window in the functional area, achieving a more Accurately detect the purpose of etching sidewall roughness under different conditions, and at the same time realize one-step detection of sidewall roughness under different etching conditions. The technological process designed by the invention is simple, each process is a mature technology, the technological difficulty is relatively low, and the realization is simple and easy to operate.

The invention relates to a substrate integrated waveguide dual-mode elliptical response filter, which adopts two dual-mode single chambers with different sizes, the upper surface and the lower surface of a medium substrate (1) are respectively coated with an upper surface metal layer (7) and a lower surface metal layer (8), a metallizing through hole array (2) penetrates the medium substrate (1),the upper surface metal layer (7) and the lower surface metal layer (8), a cavity (3) with a rectangular structure is formed by the surrounding of the metallizing through hole array (2), the relativetwo sides of the cavity (3) with the rectangular structure are respectively provided with a first inductive coupling hole (61) and a second inductive coupling hole (62) for the leading-in and the leading-out of energy into and out of the cavity; a first metalizing through hole array (4) and a second metalizing through hole array (5) are respectively arranged at the outsides of the first inductivecoupling hole (61) and the second inductive coupling hole (62) to be corresponding to the input and the output of the cavity of the filter, the two are distributed in a common line and are connected to an external circuit to be connected to a micro-strip line or other substrate integrated waveguide devices.

The invention discloses a suspension bridge main cable-saddle saddle sliding state active control suction device and method, the device includes an electric control powerful arc-shaped suction cup covering the top surface of the saddle, and bolted wings on both sides arranged sequentially from top to bottom Plate, main cable hoop device, fastening device, the active regulating suction device is installed above the main cable strand and the saddle cable groove. The lower surface of the electric-controlled powerful arc-length suction cup covering the top surface of the saddle is empty (not in contact) with the uppermost main cable strands, and the device is powered on, and the electric-control strong arc-length suction cup generates an upward magnetic force to pull the main cable Suction up as needed to change the contact degree between the main cable and the saddle, so as to realize the active regulation of the sliding state of the main cable-saddle.

The invention discloses a read-write control module and method for the same port and a dual-port memory. The read-write control module aiming at the same port can generate each stage of delay of the clock delay generation module by configuring the clock delay; the reading time sequence and the writing time sequence are regulated and controlled; therefore, the read-write pulse generation module generates a read pulse signal and a write pulse signal which are staggered in time sequence, a port read-write control signal generated by the read-write control signal generation module performs read orwrite control on the read pulse signal and the write pulse signal respectively, and a word line control signal is generated in the word line control signal generation module, wherein the read pulse signal and the write pulse signal respectively comprise a plurality of read pulses and write pulses which are periodically distributed in time; the number of read pulses and write pulses in a period can be flexibly set according to actual read-write needs, so that word line control signals in different modes are generated, data can be read and written in sequence in a clock period, the structure issimple, regulation and control are convenient and efficient, and the data has high real-time performance.