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Grigoryan
Astghik Grigoryan, Yerevan AM
| Patent application number | Description | Published |
|---|---|---|
| 20100036643 | METHODS FOR THE CYCLICAL PATTERN DETERMINATION OF TIME-SERIES DATA USING A CLUSTERING APPROACH - Cycles and other patterns within time-series data are determined. Time-series data are transformed into discretized sets of clustered data that are organized by time period. Comparison is made of the organized data to determine similar time periods and multiclusters of the similar time periods are formed. From the multicluster data, cycles are identified from which thresholds and other useful data may be derived, or the data used for other useful purposes. | 02-11-2010 |
| 20100036857 | METHODS FOR THE CYCLICAL PATTERN DETERMINATION OF TIME-SERIES DATA USING A CLUSTERING APPROACH - Cycles and other patterns within time-series data are determined. Time-series data are transformed into discretized sets of clustered data that are organized by time period. Comparison is made of the organized data to determine similar time periods and multiclusters of the similar time periods are formed. From the multicluster data, cycles are identified from which thresholds and other useful data may be derived, or the data used for other useful purposes. | 02-11-2010 |
Konstantin Grigoryan, Louisville, KY US
| Patent application number | Description | Published |
|---|---|---|
| 20100168920 | ELECTRONIC CONTROL CIRCUIT FOR A POWERED APPLIANCE DRAWER - An appliance, such as a refrigerator, includes a drawer mounted within a cabinet for movement between an opened position and a closed position. A driving mechanism, including an electric motor connects to the drawer for driving the drawer between the opened position and the closed position. A control circuit connected to the electric motor and the transmission assembly of the driving mechanism commands the transmission assembly to connect or disconnect the electric motor and the drawer, and further commands the electric motor to drive the drawer to one of the opened position and the closed position when the electric motor is connected to the drawer. The control circuit also senses obstructions and adjusts the movement of the drawer accordingly. | 07-01-2010 |
Konstantin V. Grigoryan, Louisville, KY US
| Patent application number | Description | Published |
|---|---|---|
| 20100165521 | PARALLEL ARC DETECTION USING DISCRETE WAVELET TRANSFORMS - An apparatus to perform parallel arc fault current interruption (AFCI). The apparatus includes a current sensing device disposed in the electrical circuit to sense an electrical load, the current sensing device configured to produce an output signal representative of a load current passing therethrough, a detection unit, in signal communication with the current sensing device and configured to receive the output signal produced by the current sensing device, the detection unit being configured and disposed to output a secondary signal based on the output signal, and a microcontroller coupled to the detection unit, being responsive to computer executable instructions which, when executed by the microcontroller, cause the microcontroller to receive and to decompose the secondary signal via discrete wavelet transforms to thereby obtain discrete wavelet coefficients, and to compute a sum of the discrete wavelet coefficients, and to compare the sum of the discrete wavelet coefficients to a predetermined threshold, and to generate a trip signal when the sensed load current is above a predetermined threshold and the sum of the discrete wavelet coefficients cooperatively indicate that predetermined threshold conditions for trip signal generation are satisfied | 07-01-2010 |
Konstantin Vladimir Grigoryan, Louisville, KY US
| Patent application number | Description | Published |
|---|---|---|
| 20100020451 | ARC DETECTION USING DISCRETE WAVELET TRANSFORMS - An apparatus to perform series and parallel arc fault current interruption (AFCI). The apparatus includes a resistive element configured to sense a load from which a current signal is generated, a first detection unit configured to output a first signal based on the current signal, and a microcontroller configured to decompose at least the first signal via discrete wavelet transforms to thereby obtain discrete wavelet coefficients, and to generate a trip signal when the discrete wavelet coefficients indicate that a threshold condition for trip signal generation are satisfied. | 01-28-2010 |
| 20100157488 | ARC DETECTION USING DETAILED AND APPROXIMATE COEFFICIENTS FROM DISCRETE WAVELET TRANSFORMS - An apparatus for facilitating interruption of current in an electrical circuit is provided and includes a current sensing device in the electrical circuit to service an electrical load, the current sensing device being productive of an output signal representative of a load current passing therethrough, a detection unit, in signal communication with the current sensing device such that the output signal is received by the detection unit, the detection unit being configured and disposed to output a secondary signal based on the output signal, and a microcontroller to receive and to decompose the secondary signal into detailed and approximate coefficients, and to generate a trip signal for use in interrupting an operation of the electrical circuit when a current of the sensed load is above a predetermined threshold and the detailed and approximate coefficients cooperatively indicate that threshold conditions for trip signal generation are satisfied. | 06-24-2010 |
Naira Grigoryan, Yerevan AM
| Patent application number | Description | Published |
|---|---|---|
| 20100036643 | METHODS FOR THE CYCLICAL PATTERN DETERMINATION OF TIME-SERIES DATA USING A CLUSTERING APPROACH - Cycles and other patterns within time-series data are determined. Time-series data are transformed into discretized sets of clustered data that are organized by time period. Comparison is made of the organized data to determine similar time periods and multiclusters of the similar time periods are formed. From the multicluster data, cycles are identified from which thresholds and other useful data may be derived, or the data used for other useful purposes. | 02-11-2010 |
| 20100036857 | METHODS FOR THE CYCLICAL PATTERN DETERMINATION OF TIME-SERIES DATA USING A CLUSTERING APPROACH - Cycles and other patterns within time-series data are determined. Time-series data are transformed into discretized sets of clustered data that are organized by time period. Comparison is made of the organized data to determine similar time periods and multiclusters of the similar time periods are formed. From the multicluster data, cycles are identified from which thresholds and other useful data may be derived, or the data used for other useful purposes. | 02-11-2010 |
Vladimir S. Grigoryan, Elkridge, MD US
| Patent application number | Description | Published |
|---|---|---|
| 20090103931 | SYSTEMS AND METHODS FOR THE COHERENT NON-DIFFERENTIAL DETECTION OF OPTICAL COMMUNICATION SIGNALS - In various exemplary embodiments, the present invention provides coherent non-differential detection systems and methods for the detection of optical communication signals by the Brillouin fiber amplification of an optical communication signal carrier, the coherent non-differential detection systems including: a Sagnac loop including a single-mode fiber span; a fiber span with negligible birefringence (i.e. a spun fiber span or the like); or a fiber loop with negligible birefringence (i.e. a spun fiber loop or the like). | 04-23-2009 |
| 20090254317 | SYSTEMS AND METHODS FOR HIGHLY EFFICIENT BIT ERROR RATE MODELING IN QUASI-LINEAR COMMUNICATION NETWORKS - The present invention provides systems and methods for highly efficient bit error rate (BER) modeling in quasi-linear communication networks. In the present invention, nonlinear noise is treated within a linearization approach along with the amplified spontaneous emission (ASE) noise, and the nonlinear noise is considered as another source of noise in addition to the ASE noise. This enables a quasi-analytical approach to the BER calculation. First, a covariance matrix is analytically computed. An equation is derived for a noise component of a signal and an implicit analytical solution is found depending on the signal and system parameters. Second, probability distribution functions (pdfs) are computed for the signal. An analytical calculation is performed of the characteristic function for the noise statistics. Next, a numerical computation of the Fourier transform of the characteristic function is performed to yield the pdf, and numerical integration is performed on the pdfs to yield the BER. | 10-08-2009 |
Vladimir S. Grigoryan US
| Patent application number | Description | Published |
|---|---|---|
| 20090169208 | SYSTEMS AND METHODS FOR THE POLARIZATION INSENSITIVE COHERENT DETECTION AND THE POLARIZATION DIVISION MULTIPLEXED TRANSMISSION OF OPTICAL COMMUNICATION SIGNALS - The present invention relates generally to the transport and processing of optical communication signals. More specifically, the present invention relates to systems and methods for the polarization insensitive coherent detection of optical communication signals with Brillouin amplification of the associated signal carrier and the polarization division multiplexed transmission of optical communication signals without polarization tracking at the associated receiver(s). | 07-02-2009 |