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Ningbo University patents


Recent patent applications related to Ningbo University. Ningbo University is listed as an Agent/Assignee. Note: Ningbo University may have other listings under different names/spellings. We're not affiliated with Ningbo University, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | Ningbo University-related inventors


Microscopic three-dimensional measurement system and method based on moving diaphragm

The present invention discloses a microscopic three-dimensional measurement system and method based on a moving diaphragm. The present invention adds the diaphragm into the existing optical microscopic imaging system to limit light irradiation angle during imaging for reducing the diameter of blur circle, which extends the depth of field and the depth measurement range, so as to achieve the three-dimensional measurement of large-size objects to be measured. ... Ningbo University

Ternary 2-9 line address decoder realized by cnfet

The present invention discloses a ternary 2-9 line address decoder realized by cnfet, comprising two ternary 1-3 line address decoders of the same structure, nine three-input nand gates of the same structure and nine inverters of the same structure; the ternary 1-3 line address decoder comprises a 1st cnfet transistor, a 2nd cnfet transistor, a 3rd cnfet transistor, a 4th cnfet transistor, a 5th cnfet transistor, a 6th cnfet transistor, a 7th cnfet transistor, an 8th cnfet transistor, a 9th cnfet transistor, a 10th cnfet transistor and an 11th cnfet transistor; as compared with a 3-8 line address decoder, it features in limited deviation to an output terminals and significant reduction in the number of input terminals, which can minimize the number of ports as packaging, and improve decoding efficiency; furthermore, it is realized by cnfet, which features in low power consumption and less postponement.. . ... Ningbo University

Ternary puf unit and circuit realized by cnfet

The present invention discloses a ternary puf unit and circuit realized by cnfet; the ternary puf circuit comprises a ternary row decoder, a ternary column decoder, a ternary output circuit and a ternary puf unit array; the said ternary puf circuit is arranged into a 3n rows×3n columns matrix formed by 3n×3n ternary puf units; the ternary puf unit comprises a 1st cnfet transistor, a 2nd cnfet transistor, a 3rd cnfet transistor, a 4th cnfet transistor, a 5th cnfet transistor, a 6th cnfet transistor, a 7th cnfet transistor, an 8th cnfet transistor, a 9th cnfet transistor and a 10th cnfet transistor; its advantage lies in the fact that it is provided with small circuit area and higher randomness and uniqueness while ensuring proper logic function.. . ... Ningbo University

Ternary sense amplifier and sram array realized by the ternary sense amplifier

A ternary sense amplifier and an sram array realized by the ternary sense amplifier are provided. The ternary sense amplifier comprises the 1st cnfet transistor, the 2nd cnfet transistor, the 3rd cnfet transistor, the 4th cnfet transistor, the 5th cnfet transistor, the 6th cnfet transistor, the 7th cnfet transistor, the 8th cnfet transistor, the 9th cnfet transistor, the 10th cnfet transistor, the 11th cnfet transistor, the 12th cnfet transistor and the 13th cnfet transistor; the sram array comprises a ternary sense amplifier, a ternary memory array, the 1st inverter, the 2nd inverter, the 3rd inverter, the 4th inverter, the 14th cnfet transistor, the 15th cnfet transistor, the 16th cnfet transistor, the 17th cnfet transistor, the 18th cnfet transistor and the 19th cnfet transistor; it features in low power consumption, less postponement and high yield of chips.. ... Ningbo University

Shift register capable of defending against dpa attack

The present invention discloses a shift register capable of defending against dpa attack, comprising 4 master-slave d flip-flops, 12 two-input nand/and gates, 4 three-input nor/or gates and 40 inverters; the 4 master-slave d flip-flops are provided with reset function; it is based on tsmc 65 mm cmos technique; as indicated by spectre simulation verification, the shift register of the present invention has correct logic function with ned and nsd below 2.66% and 0.63% respectively under multi pvt combinations, which is provided with significant performance in defense differential power consumption analysis.. . ... Ningbo University

High dynamic range image information hiding method

A high dynamic range image information hiding method includes embedding secret information and extracting the secret information. The step of embedding secret information includes obtaining three channel values of every pixel in an original high dynamic range image; according to every channel value and corresponding 5-bit exponent of every pixel, determining an embedding significance bit of the information to be embedded in every channel value of every pixel; embedding information into every channel value of every pixel; and obtaining a high dynamic range image embedded with the secret information. ... Ningbo University

Replica bit-line control circuit

The present invention discloses a replica bit-line circuit, comprising a replica unit, the 1st inverter, the 2nd inverter, the 3rd inverter, the 4th inverter, the 5th inverter, the 6th inverter, the 7th inverter, the 8th inverter, the 9th inverter, the 1st nand gate, the 2nd nand gate, the 3rd nand gate, the 1st nor gate, the 2nd nor gate and the 1st pmos tube; the 2nd nor gate is provided with the 1st input terminal, the 2nd input terminal, a set terminal and an output terminal; advantages of the present invention are stated as follows: it can inhibit feedback oscillation incurred by replica bit-line and replica wordline signal to obtain accurate wordline control signal; it can save switching power consumption of memory array by 53.7% under the power voltage of 1.2v.. . ... Ningbo University

3d-hevc inter-frame information hiding method based on visual perception

A 3d-hevc inter-frame information hiding method based on visual perception includes steps of information embedding and information extraction. In the step of information embedding, the human visual perception characteristic is considered, stereo salient images are obtained by a stereo image salient model, and the stereo salient images are divided into salient blocks and non-salient blocks with an otsu threshold. ... Ningbo University

Method for evaluating quality of tone-mapping image based on exposure analysis

A method for evaluating quality of tone-mapping image based on exposure analysis is provided, which explores the exposure properties on each area of the high dynamic range image utilizing the pre-exposure method and divides the high dynamic range image into three parts of an easy overexposed area, an easy underexposed area and an easy natural-exposed area, wherein different quality characteristics are extracted in different areas, which is capable of ensuring that the follow-up quality characteristic extraction is more targeted. The present invention takes the difference of distortion between the tone-mapping image and the conventional image into account, and extracts image characteristics such as the abnormal exposure rate, the underexposed residual energy, the overexposed residual energy and the exposure color index, so as to accurately reflect the quality degradation of the tone-mapping image.. ... Ningbo University

Cnfet double-edge pulse jkl flip-flop

The present invention discloses a cnfet double-edge pulse jkl flip-flop, comprising a double-edge pulse signal generator, 31 cnfet tubes, 6 nti gate circuits having the same circuit structure, 6 pti gate circuits having the same circuit structure as well as the 1st and 2nd two-value inverters having the same circuit structure; it features in correct logic functions as well as high-speed and low power consumption.. . ... Ningbo University

Objective assessment method for color image quality based on online manifold learning

An objective assessment method for a color image quality based on online manifold learning considers a relationship between a saliency and an image quality objective assessment. Through a visual saliency detection algorithm, saliency maps of a reference image and a distorted image are obtained for further obtaining a maximum fusion saliency map. ... Ningbo University

Bridged imbalance puf unit circuit and multi puf circuits

The present invention discloses a bridge imbalance puf unit circuit and multi puf circuits; the bridge imbalance puf unit circuit comprises a four-arm bridge unit circuit and a contrast output unit circuit; the multi puf circuits comprise a timing controller, a row decoder, a column decoder, a memory array, a row output circuit and a column output circuit; each memory unit in the memory array comprises a bridge imbalance puf unit circuit and 4 nmos tubes; the present invention features in higher randomness that is up to 51.8% at the supply voltage of 1.2v under the temperature of 25° c.. . ... Ningbo University

Static ram for differential power analysis resistance

The present invention discloses a static ram for defensive differential power consumption analysis, comprising a replica bit-line circuit, a decoder, an address latch circuit, a clock circuit, n-bit memory arrays, n-bit data selectors, n-bit input circuit and n-bit output circuits; the output circuits comprises a sensitivity amplifier and a data latch circuit; the 1st pmos tube, the 2nd pmos tube, the 3rd pmos tube, the 4th pmos tube, the 5th pmos tube, the 6th pmos tube, the 7th pmos tube, the 1st nmos tube, the 2nd nmos tube, the 3rd nmos tube, the 4th nmos tube and the 5th nmos tube constitute the sensitivity amplifier; two nor gates, the 8th pmos tube, the 9th pmos tube, the 10th pmos tube, the 11th pmos tube, the 6th nmos tube, the 7th nmos tube, the 8th nmos tube, the 9th nmos tube and the 10th nmos tube constitute the data latch circuit; the present invention is characterized in that energy consumption in each working cycle is basically identical, which is provided with higher capability in defense of differential power analysis.. . ... Ningbo University

Biochip hybridization device

A biochip hybridization device includes a first hybridization box and second hybridization boxes. Multiple placement cavities for respectively placing the second hybridization boxes are horizontally provided in the first hybridization box. ... Ningbo University

06/22/17 / #20170177975

Image quality objective evaluation method based on manifold feature similarity

An image quality objective evaluation method based on manifold feature similarity is disclosed, which firstly adopts visual salience and visual threshold to remove image blocks which are unimportant to visual perception, namely, uses roughing selection and fine selection; and then utilizes the best mapping matrix after block selection to extract manifold feature vectors of image blocks which are selected from original undistorted natural scene images and distorted images to be evaluated; and then measures the structural distortion of distorted images according to manifold feature similarity; and then considers effects of image brightness changes on human eyes and obtains the brightness distortion of distorted images based on an average value of image blocks, and finally obtains quality scores according to structural distortion and brightness distortion; which allows the method of the present invention to have a higher evaluation accuracy, and also expands the evaluation capacity to various distortions.. . ... Ningbo University

04/27/17 / #20170117881

Carbon nanotube field effect transistor-based pulse generator

A cnfet based pulse generator, including a first carbon nanotube field effect transistor (cnfet), a second cnfet, a third cnfet, a fourth cnfet, a fifth cnfet, a sixth cnfet, a seventh cnfet, an eighth cnfet, a ninth cnfet, a tenth cnfet, an eleventh cnfet, a twelfth cnfet, a thirteenth cnfet, and a fourteenth cnfet. The first cnfet, the third cnfet, the fifth cnfet, the seventh cnfet, the tenth cnfet, the twelfth cnfet, and the thirteenth cnfet are p-type cnfets. ... Ningbo University

04/20/17 / #20170109858

Zero-watermarking registration and detection method for hevc video streaming against requantization transcoding

A zero-watermarking registration and detection method for hevc video streaming against requantization transcoding is provided. To increase an attack-resistance of a registration watermarking, the registration method firstly processes depth values corresponding to respective brightness blocks in a target video streaming with a depth binarization during constructing registration watermarking information through depth features, because the depth binarization well reflects a robustness of the registration watermarking. ... Ningbo University

03/02/17 / #20170060943

Method for optimizing area of ternary fprm circuit using population migration algorithm

A method for optimizing an area of a ternary fprm circuit using population migration algorithm, the method including: 1) establishing an area estimation model of the ternary fprm circuit; 2) establishing a corresponding relationship between the ternary fprm circuit and population migration algorithm; 3) setting an attraction function for calculating the attraction of the population location in population migration algorithm; 4) setting relevant parameters of population migration algorithm; and 5) employing population migration algorithm to calculate and obtain the greatest attractive site and the greatest attraction.. . ... Ningbo University








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