46results about How to "Change complexity" patented technology

Systems and methods for medical interventional procedures, including approaches to valve implantation. In one aspect, the methods and systems involve a modular approach to mitral valve therapy.

An echo canceller processing echo, noise and near end talk in a narrower, but still intelligible, frequency band for reducing required processing power and complexity. In a preferred embodiment of the present invention, an input audio signal of captured sound in an audio communication system is decimated and then divided into a number of sub bands by an analyze filter. Each sub band is processed as in background audio echo cancelling by subtracting the signal with an echo estimate from a model of the acoustic signal in the respective sub band, except from that the signal is also bypassed, adjusted by a filter and subtracted from the processed signal. The resulting signals are then recombined by a synthesize filter and interpolated to the original sampling rate and bandwidth. Finally, the output from the synthesize filter is added to the input audio signal, which has been delayed and adjusted by a filter. The filters are controlled by a control algorithm detecting the presence of near end sound, far end sound and noise, so that the filters, and consequently the high pass filter of the echo canceller, only pass high frequency (above low pass frequencies) when only near end sound is detected.

The present invention provides a method and a device for unlocking a touch screen. The method comprises: when detecting that a touch screen is touched, generating unlocking components, the number of the unlocking components being a first preset value; when detecting that the number of the touched unlocking components reaches a second preset value, unlocking the touch screen. The present invention solves the problem in the prior art that only few methods are provided for unlocking a touch screen, and hence makes the unlocking method more diversified, more flexible, and more interesting.

The invention relates to the technical field of spraying bottles for containing liquid, in particular to a novel detachable and refillable liquid spraying bottle. The whole spraying bottle comprises a bottle body and a bottle bottom which are detachably connected through an integral valve seat. Positioning ribs, a seal groove and concave-convex toothed structures are disposed on the outer wall of the valve seat and connected with the bottle body. Threads are disposed on the outer wall of the valve seat and connected with the bottle bottom. A valve element is inserted in the inner cavity of the valve seat. The inner cavity of the valve seat is matched with the outer contour of the valve element and of an overall asymmetrical structure. The valve element can be inserted into the inner cavity of the valve seat at an only angle. A positioning device is disposed at the top end of the valve element and used for positioning an inner cavity spring. The overall asymmetrical structure of the inner cavity of the valve seat and the valve element is characterized in that one side of a contour line is a circular edge, and the other side thereof is a linear edge with an arc angle. The liquid spraying bottle has the advantages that the liquid spraying bottle is convenient to carry, convenient to demount and clean, good in airtightness and simple in production process, following rotation can be prevented, circulating refilling and repeated using can be achieved, and odor tainting of different gases is avoided.