989results about How to "Improve capture ability" patented technology

The invention relates to leadless cardiac pacemakers (LBS), and elements and methods by which they affix to the heart. The invention relates particularly to a secondary fixation of leadless pacemakers which also include a primary fixation. Secondary fixation elements for LBS's may passively engage structures within the heart. Some passive secondary fixation elements entangle or engage within intraventricular structure such as trabeculae carneae. Other passive secondary fixation elements may engage or snag heart structures at sites upstream from the chamber where the LBS is primarily affixed. Still other embodiments of passive secondary fixation elements may include expandable structures.

A two-way communication system for viewers at first and second sites, including an integrated imaging apparatus at the first site for displaying second site images from the second site while capturing first site images from the first site and sending them over a channel to a second site; a structure at the second site coupled to the channel and responsive to images from the integrated imaging apparatus to display such first site images and capturing second site images sending them over the channel to the integrated imaging apparatus; wherein the integrated imaging apparatus, includes, an electronic display having an array of display pixels in which at least one display pixel is partially transparent; and at least one image capture device which is operably associated with the partially transparent pixel.

The invention discloses a GPS signal large-scale parallel quick capturing method, which comprises the following steps: configuring a large-scale parallel quick capturing module firmware comprising submodules of multiplier, data block cache, parallel part correlative processing, frequency domain transformation, postprocessing and digital controlled oscillator, code generator and the like in a system CPU; through the calling computation, converting low-medium frequency digital signals into baseband signals in a processing procedure to combine a data block; performing zeroing extension of the length and the data block on each equational data section in the data block; then based on FFT transformation computation, performing parallel part correlative PPC processing on each extended data section and local spreading codes, and performing FFT transformation on each line of a formed PPC matrix to obtain a result matrix; and performing coherent or incoherent integration on a plurality of result matrixes formed by processing a plurality of data blocks to increase the processing gain, improve the capturing sensitivity, roughly determine the code phase and the Doppler frequency of GPS signals, and achieve two-dimensional parallel quick capturing of the GPS signals. The method has high processing efficiency and high capturing speed, and can be applied to various GPS positioning navigation aids.

The invention discloses a spherical cavity type solar heat absorber with an inwardly concave glass cover. The heat absorber is mainly used for collecting sunlight and converting the sunlight into heat energy in a butterfly type solar high-temperature heat utilization system. The heat absorber mainly comprises a heat exchange coil pipe, the inwardly concave glass cover, an outer shell, an inner shell, a vacuum layer, a reflective wind shield and a heat conductive fluid. Different from the traditional opening type heat absorber and the cavity type heat absorber with the glass window at the cavity opening, the cavity type heat absorber disclosed by the invention is the opening type spherical heat absorber with the inwardly concave glass cover, therefore, the cavity type heat absorber not only has the light capturing capacity of the opening cavity type heat absorber but also has low heat loss of the cavity type heat absorber with the glass window at the cavity opening; meanwhile, the cavity type heat absorber is provided with the reflective wind shield, therefore, the capturing on deviated light can be strengthened, and the heat radiation on the inner wall and the convection heat transfer loss resulted from external natural wind can be reduced; and the cavity type heat absorber comprises the vacuum layer between the inner shell and the outer shell, therefore, the lost heat throughthe shells can be effectively reduced.

The invention discloses an ultrasonic image automatic understanding and generation method, and relates to the technical field of computer information processing. The method comprises the steps of extracting an ultrasonic image eigenvector by a CNN model, performing word segmentation on a descriptive sentence corresponding to an ultrasonic image by a word segmentation tool, and obtaining a word sequence eigenvector; training an LSTM model by utilizing the ultrasonic image eigenvector and the corresponding word sequence eigenvector; and generating a plurality of proper sentences at a time step by the LSTM language model through utilizing a beam search method, and generating the sentence for describing the ultrasonic image according to probability estimation. The method can well solve the problem that adjustment cannot be carried out in time when a new combination situation occurs in conventional image topic description and automatic generation. The method can be widely used for understanding and statement description of the ultrasonic image.

The invention discloses a thrombus extraction support device. The thrombus extraction support device comprises a thrombus extraction support, a conveying guide wire, a guiding guide wire and marking rings, and is characterized in that the thrombus extraction support is composed of a front thrombus extraction support body and a back thrombus extraction support body; the marking rings include the middle-section marking ring and the near-end marking ring, the back end of the front thrombus extraction support body is fixedly connected with the back thrombus extraction support body through the middle-section marking ring, and the front end of the front thrombus extraction support body is fixedly connected with the guiding guide wire so that vascular irritation of the front thrombus extraction support body can be effectively reduced, and vasospasm in the thrombus extraction process can be prevented; the back end of the back thrombus extraction support body is fixedly connected with the near-end marking ring, the front end of the conveying guide wire is connected with the near-end marking ring, and the back end of the conveying guide wire is connected with a microtubule so that the front thrombus extraction support body and the back thrombus extraction support body can successively carry out thrombus extraction, and thrombus can be effectively prevented from falling in blood vessels. Due to the structure, the thrombus extraction support device has the advantages that the structure is simple, the capturing performance is high, thrombus extraction is complete, vasospasm is prevented, and the blood flow recovering velocity is high.