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Brendel
Juergen Brendel, Takapuna NZ
| Patent application number | Description | Published |
|---|---|---|
| 20100281133 | STORING LOSSY HASHES OF FILE NAMES AND PARENT HANDLES RATHER THAN FULL NAMES USING A COMPACT TABLE FOR NETWORK-ATTACHED-STORAGE (NAS) - Multiple Network Attached Storage (NAS) appliances are pooled together by a virtual NAS translator, forming one common name space visible to clients. Clients send messages to the virtual NAS translator with a file name and a virtual handle of the parent directory that are concatenated to a full file-path name and compressed by a cryptographic hash function to generate a hashed-name key. The hashed-name key is matched to a storage key in a table. The full file-path name is not stored, reducing the table size. A unique entry number is returned to the client as the virtual file handle that is also stored in another table with one or more native file handles, allowing virtual handles to be translated to native handles that the NAS appliance servers use to retrieve files. File movement among NAS servers alters native file handles but not virtual handles, hiding NAS details from clients. | 11-04-2010 |
Jurgen Brendel, Nyon CH
| Patent application number | Description | Published |
|---|---|---|
| 20080231842 | HIGH DYNAMIC RANGE PHOTON-COUNTING OTDR - An optical time domain reflectometer (OTDR) operates in a gated mode, enabling a predetermined width of an optical fiber to be analyzed. The OTDR may test only a desired position on the fiber. Data obtained along different lengths of the fiber may be combined together, providing a thorough representation of the fiber characteristics. Alternatively, specific regions of the fiber may be analyzed. The OTDR measures the backscattered signal using photon-counting techniques, and improves the accuracy of such algorithms by attenuating the incoming backscattering signals automatically and independently at each position in the fiber being tested. The OTDR simultaneously achieves a high dynamic range and a high temporal/spatial resolution, an improvement over conventional OTDRs. | 09-25-2008 |
| 20090268198 | POLARIZATION MODE DISPERSION MEASUREMENT USING AN IMPROVED FIXED ANALYZER METHOD - A device for performing polarization mode dispersion (PMD) measurements of an optical fiber is disclosed. The PMD measurement device employs a fixed analyzer method, and includes a tunable Fabry-Perot inferometer as the wavelength-selective element and an optical bandpass filter for spectrum calibration. A novel scanning algorithm, which performs multiple scans at different velocities, enables accurate PMD measurements, even of moving optical cable. The tunable Fabry-Perot interferometer is able to scan over a wide wavelength range and yet have a narrow linewidth, such that a wide range of PMD values can be measured. | 10-29-2009 |
Uwe Brendel, Salzburg AT
| Patent application number | Description | Published |
|---|---|---|
| 20110000541 | METHOD FOR DEPOSITION A FILM ONTO A SUBSTRATE - Disclosed is a method for depositing a film onto a substrate, with a sputter deposition process | 01-06-2011 |