Raviv
Raviv Raich, Corvaills, OR US
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20090097733 | METHOD AND APPARATUS FOR CLUSTERING AND VISUALIZATION OF MULTICOLOR CYTOMETRY DATA - A computer implemented method is provided for clustering and visualization of an n-dimensional space in a Euclidean space. The method includes: collecting a plurality of multi-dimensional data sets; estimating a probability density function from each data set; approximating a dissimilarity between every pair of said probability density functions and recording every dissimilarity in a dissimilarity matrix; embedding the dissimilarity matrix into a Euclidean space having a dimensionality of three or less using a multi-dimensional scaling method; and graphically displaying relationships between data sets using data in the Euclidean space on a display of a computing device. | 04-16-2009 |
Raviv Weber, Herzliya IL
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20120307949 | Burst Mode Clock and Data Recovery Circuit and Method - Burst mode clock and data recovery (BCDR) circuit and method capable of fast data recovery of passive optical network (PON) traffic. An over-sampled data stream is generated from an input burst data signal and a phase interpolator generates sampling clock signals using a reference clock and phase information. A phase estimation unit (PEU) determines a phase error in the over-sampled data streams; and a phase retrieval unit sets the phase interpolator with the respective phase information of the input burst data signal prior to reception of the input burst data signal. | 12-06-2012 |
20140110566 | OVERLOAD PROTECTION FOR AMPLIFIER OF PHOTODIODE SIGNAL - A method for sensing includes connecting an input of a trans-impedance amplifier (TIA) to a first terminal of a sensor, which generates a current in response to an input signal that is incident on the sensor, the signal comprising pulses of a characteristic duration. A resistor is connected in series between a second terminal of the sensor and a power supply, which is set to drive the sensor at a selected voltage. A capacitor is connected to the second terminal in parallel with the sensor and the TIA and in series with the resistor. An upper limit is set on the current that is to be input to the TIA from the sensor, and respective values of the resistor and the capacitor are chosen, responsively to the characteristic duration of the pulses and the selected voltage, to prevent the current input to the TIA from exceeding the upper limit. | 04-24-2014 |
Raviv Yatom, Tivon IL
Patent application number | Description | Published |
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20090161912 | METHOD FOR OBJECT DETECTION - In one aspect, the present invention is directed to a method for object detection, the method comprising the steps of: dividing a digital image into a plurality of sub-windows of substantially the same dimensions; processing the image of each of the sub-windows by a cascade of homogeneous classifiers (each of the homogenous classifiers produces a CRV, which is a value relative to the likelihood of a sub-window to comprise an image of the object of interest, and wherein each of the classifiers has an increasing accuracy in identifying features associated with the object of interest); and upon classifying by all of the classifiers of the cascade a sub-window as comprising an image of the object of interest, applying a post-classifier on the cascade CRVS, for evaluating the likelihood of the sub-window to comprise an image of the object of interest, wherein the post-classifier differs from the homogenous classifiers. | 06-25-2009 |
Raviv Yohanan, Qiryat Motzkin IL
Patent application number | Description | Published |
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20150177135 | COMBINED IMAGING AND SCATTEROMETRY METROLOGY - Metrology targets, design files, and design and production methods thereof are provided. The targets comprise two or more parallel periodic structures at respective layers, wherein a predetermined offset is introduced between the periodic structures, for example, opposite offsets at different parts of a target. Quality metrics are designed to estimate the unintentional overlay from measurements of a same metrology parameter by two or more alternative measurement algorithms. Target parameters are configured to enable both imaging and scatterometry measurements and enhance the metrology measurements by the use of both methods on the same targets. Imaging and scatterometry target parts may share elements or have common element dimensions. Imaging and scatterometry target parts may be combined into a single target area or may be integrated into a hybrid target using a specified geometric arrangement. | 06-25-2015 |
Raviv Zeev, Hod Hasharon IL
Patent application number | Description | Published |
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20080225806 | SYSTEM AND METHOD FOR ENABLING MOBILITY IN INTERNET PROTOCOL NETWORKS - A method to enable mobility while connected to an Internet protocol network comprises receiving a first data packet from a mobile node at a first mobile gateway in a mobile-gateway-communication network via a first access point and determining if a communication session is ongoing responsive to receiving the first data packet. When it is determined that a communication session is not ongoing, the first mobile gateway is established as a home mobile gateway for the duration of the communication session. When the mobile node connects to a second mobile gateway in the mobile-gateway-communication network via a second access point during the communication session, a tunnel is opened from the second mobile gateway to the home mobile gateway so that the communication session is maintained regardless of the protocol implemented by the mobile node and the access points. | 09-18-2008 |