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Eleftheriou
Andreas Eleftheriou, Woodbridge CA
| Patent application number | Description | Published |
|---|---|---|
| 20080240917 | TURBOFAN CASE AND METHOD OF MAKING - A casing for a gas turbine includes a construction providing improved structural efficiency. Improved load paths and means for transmitting loads in the engine case are disclosed. | 10-02-2008 |
| 20090136348 | VIBRATION DAMPING OF A STATIC PART USING A RETAINING RING - A retaining ring is mounted in frictional engagement with a static gas turbine engine part, such as a compressor shroud, in order to provide frictional damping. | 05-28-2009 |
| 20100209251 | FAN BLADE PLATFORM - A fan blade platform assembly comprises a plate insert shaped and dimensioned to span a gap formed between the opposed facing platforms of adjacent fan blades of a turbo fan engine. The plate insert can be retained in engagement under arresting shoulders provided on the adjacent fan blades by a spring force exerted by a spring insert held captive and in contact between the plate insert and an outer surface of the fan hub. | 08-19-2010 |
| 20120082541 | GAS TURBINE ENGINE CASING - An engine casing for a gas turbine engine, such as, but not limited to, a gas turbine engine fan case, is disclosed which includes an annular case shell formed of a substrate material that is at least partially coated by a nanocrystalline metal coating. A method of manufacturing such an engine casing is also provided. The present engine casing provides improved containment capability in the event of a blade release or other failure during operation of the engine. | 04-05-2012 |
| 20120082551 | GAS TURBINE BLADE AND METHOD OF PROTECTING SAME - An airfoil blade of a gas turbine engine includes a root configured for mating attachment with a cooperating rotor hub and an airfoil extending away from the root. The root is composed of a first metal and has a nanocrystalline metal coating, composed of a second metal, over at least a portion thereof. A method of protecting such a blade by applying a nanocrystalline metal coating to a portion of the blade root is also disclosed. | 04-05-2012 |
| 20120082553 | METAL ENCAPSULATED STATOR VANE - A hybrid vane airfoil for a gas turbine engine, such as a vane of a compressor stator, is disclosed which includes a non-metallic core, and an outer metallic shell at least partially covering the non-metallic core and which defines an outer surface of the airfoil. The non-metallic core is composed for example of a polymer, and the metallic outer shell is composed of a nanocrystalline metallic coating. | 04-05-2012 |
| 20120082556 | NANOCRYSTALLINE METAL COATED COMPOSITE AIRFOIL - An airfoil for a gas turbine engine comprising a root, a tip, and leading and trailing edges extending between the root and the tip. The airfoil has a non-metallic core which is composed of a composite material, and a metallic coating disposed on at least a portion of the composite core, such as along the leading edge of the airfoil for example. The metallic coating is composed of a nanocrystalline metal, and forms an outer surface of the portion of the airfoil onto which the coating is applied. | 04-05-2012 |
| 20120082559 | AIRFOIL BLADE - A fan blade of a gas turbine engine, and a method of producing same, is disclosed which is composed of a core substrate and a nanocrystalline metal coating provided on at least a portion of the airfoil of the fan blade. The method includes the steps of providing a fan blade core having an airfoil and then applying a nanocrystalline metal coating over at least a portion of the fan blade core. | 04-05-2012 |
| 20120082783 | METHOD OF APPLYING A NANOCRYSTALLINE COATING TO A GAS TURBINE ENGINE COMPONENT - A method of applying a nanocrystalline coating to a gas turbine engine component is described. The method comprises the steps of applying an intermediate bond coat to at least a portion of the component, and then applying the nanocrystalline coating to at least the portion of the component overtop of the intermediate bond coat. The component may include, for example, a blade of which a dovetail portion of the blade root is protected by applying the intermediate bond coat and the nanocrystalline coating thereto. | 04-05-2012 |
Evangelos Eleftheriou, Zurich CH
| Patent application number | Description | Published |
|---|---|---|
| 20080244353 | METHOD FOR CREATING AN ERROR CORRECTION CODING SCHEME - The present invention relates to a method for reducing data loss comprising a first computing step for computing an intermediate result for each redundancy information entity of a redundancy set by processing respectively associated data information entities of a given data set on at least two main diagonals of a parity check matrix representing an error correction coding scheme. The method further comprises a second computing step for computing the information content of the respective redundancy information entity dependent on the respective intermediate result. | 10-02-2008 |
Evangelos S. Eleftheriou, Ruschlikon CH
| Patent application number | Description | Published |
|---|---|---|
| 20110066788 | CONTAINER MARKER SCHEME FOR REDUCING WRITE AMPLIFICATION IN SOLID STATE DEVICES - A solid state storage device and method are provided. Multiple blocks are configured as storage memory for a solid state storage device, and each block includes multiple pages. A controller is configured to operate the solid state storage device. A free block of the multiple blocks is assigned a marker level by the controller. For a particular page of the multiple pages, each particular page of data is written to a block of the multiple blocks with a marker level corresponding to a level of dynamicity calculated by the controller for that particular page. | 03-17-2011 |
Evangelos S. Eleftheriou, Rueschlikon SZ
| Patent application number | Description | Published |
|---|---|---|
| 20100172047 | System, method, and computer program product for characterizing media associated with data storage channels - A system in one embodiment includes multiple analog inputs for receiving readback signals, an analog to digital converter coupled to each of the analog inputs for converting the readback signals to digital signals, a buffer coupled to outputs of the analog to digital converters for at least temporarily storing the digital signals, and a digital processing section also coupled to outputs of the analog to digital converters for processing the digital signals for reconstructing data therefrom. A method in one embodiment includes receiving multiple channels of analog readback signals from a magnetic head, converting the analog signals in each channel to digital signals, buffering the digital signals, and outputting the buffered digital signals. A method in another embodiment includes receiving a readback waveform from a magnetic storage device, reducing a frequency offset of the readback waveform, and generating a synchronized, oversampled waveform from the readback waveform. | 07-08-2010 |
Evangelos S. Eleftheriou US
| Patent application number | Description | Published |
|---|---|---|
| 20090207515 | ERROR CORRECTION CAPABILITY FOR LONGITUDINAL POSITION DATA IN A TAPE STORAGE SYSTEM - A longitudinal position (LPOS) word L(n) is encoded with error correction capability. The LPOS word includes a plurality of LPOS symbols L | 08-20-2009 |
| 20100189169 | 16-STATE ADAPTIVE NOISE PREDICTIVE MAXIMUM-LIKELIHOOD DETECTION SYSTEM - A 16-State adaptive NPML detector is provided for a tape drive which addresses weaknesses of a conventional fixed, 8-state EPR4 detector. Rather than having a fixed target channel, the detector is programmable to allow a range of target channels and can support “classical” partial response channels such as PR4 or EPR4 by programming predictor or whitening filter coefficients. In one embodiment, two filter coefficients may be set via XREG inputs or dynamically determined through the use of an LMS algorithm allowing the detector to adapt the predictor coefficients as data is being read. Another embodiment provides a detector for an EPR4 target in which the whitening filter has one coefficient. Components of the detection system include the detector itself, an LMS engine, a coefficient engine and a noise predictive or whitening filter. Coefficients from the LMS engine may be loaded or stored dynamically based upon conditions in the tape drive. | 07-29-2010 |
Evangelos Stavros Eleftheriou, Zurich CH
| Patent application number | Description | Published |
|---|---|---|
| 20120110247 | MANAGEMENT OF CACHE MEMORY IN A FLASH CACHE ARCHITECTURE - A method for managing cache memory in a flash cache architecture. The method includes providing a storage cache controller, at least a flash memory comprising a flash controller, and at least a backend storage device, and maintaining read cache metadata for tracking on the flash memory cached data to be read, and write cache metadata for tracking on the flash memory data expected to be cached. | 05-03-2012 |
Evangolos S. Eleftheriou, Zurich CH
| Patent application number | Description | Published |
|---|---|---|
| 20080270061 | SYSTEM AND METHOD FOR SENSOR REPLICATION FOR ENSEMBLE AVERAGING IN MICRO-ELECTROMECHANICAL SYSTEM (MEMS) - A MEMs-based system (and method), includes a sensor array including at least two sensors providing a basis for ensemble averaging. | 10-30-2008 |