99 results about "Spatial dispersion" patented technology

The present invention provides a system and method for classifying cardiac beats based on activation-recovery intervals (ARIs) or an ARI-related parameter such as the spatial dispersion of activation, recovery or ARIs. The beat classification method may be used in monitoring and detecting cardiac rhythms and / or for controlling a cardiac stimulation therapy. The beat classification method includes acquiring a reference ARI for one or more known types of cardiac beats; measuring the activation-recovery interval of an unknown cardiac beat during cardiac activity monitoring; comparing the measured activation-recovery interval to the stored reference ARI(s); and classifying the cardiac beat based on the comparison between the measured ARI and the reference ARI(s).

A flat panel display device includes a display panel having at least one link pixel which has a non-defect area and a panel defect area and where adjacent pixels are linked to each other; a memory which stores a first compensation data for compensating the data which are to be displayed in the panel defect area, a second compensation data for compensating the data of a bordering part between the panel defect area and the non-defect area, and a third compensation data for compensating the data which are to be displayed in the link pixel. The first compensation data is adjusted through at spatial dispersion or temporal dispersion; the data that are to be displayed in a fixed area inclusive of the boundary are adjusted by dispersing the second compensation data to the fixed area inclusive of the boundary; the data that are to be displayed in the link pixel are adjusted to the third compensation data.

A fiber-optical, wavelength selective switch, especially for channel routing with equalization and blocking applications. The input signals are converted to light beams having predefined polarizations (41). The beams are then laterally expanded (43), and then undergo spatial dispersion in the beam expansion plane. The different wavelength components are directed through a polarization rotation device, pixilated along the wavelength dispersion direction such that each pixel operates on a separate wavelength. Each beam is passed into a pixilated beam steering array (48), for directing each wavelength to a desired output port. The beam steering devices can be MEMS-based or Liquid crystal-based, or an LCOS array. When the appropriate voltage is applied to a pixel and its associated beam steering element, the polarization of the light passing through the pixel is rotated and the beam steered to couple to the selected output port.

The invention discloses a method for establishing a full three-dimensional coupling model of a reactor U-shaped tubular steam generator, which is suitable for all systems related to energy conversionby adopting a shell-and-tube heat exchanger in the field of energy. The coupling method mainly comprises the following steps: 1, simplifying a geometric model of the steam generator; 2, establishing aprimary and secondary side geometric model; 3, carrying out primary and secondary side three-dimensional computing node division; 4, performing spatial dispersion on a pipe side (primary side) energysource item; 5, performing spatial discretization on a shell side (secondary side) energy source item; 6, coupling primary and secondary side energy source items at the same coordinate node; and 7, performing data transmission between the primary side and the secondary side and on internal nodes of each side, and performing iteration to obtain a convergence solution. Geometric model simplification is mainly used for simplifying the workload caused by the number of a large number of heat transfer pipes to model establishment and numerical calculation. Primary and secondary side computing nodedivision adopts a completely identical division strategy; each side energy source item is obtained through a discrete flow heat transfer equation; and the data exchange of the energy source items on the two sides is carried out between the corresponding primary and secondary side computing nodes under the same coordinate.