Spinchip Diagnostics As

General Electric Company

Tandberg Data As

Tandberg Data Asa

Rolf Jahren

Stig Morten Borch

Ole Christian Tronrud

Sebastian Stenmark

John Erik Hershey

John Anderson Fergus Ross

Victor Petrovich Ostroverkhov

Xiaolei Shi

Brian Lee Lawrence

Erik Solhjell

Xuefeng Wang

Torgeir Hamsund

Ole Christian Dahlerud

Didrik Paus

Arne Adli

Erik L Meyer

Håvard Kristiansen

Odd Martin Staal

Steven Hill

Ole-Andreas Kavli

Provided are methods and apparatuses for controlling a position of a target point on a processing result relative to a focus point of a focusing sensor system for determining properties of the processing result. The method includes the steps of determining an initial focus point of the focusing sensor system, controlling rotation of the cartridge and disc, checking whether the initial focus point of the focusing sensor system corresponds to the target point on the processing result, comparing (x, y) target positions in captured images with the initial focus point of the focusing sensor system, adjusting rotation of the cartridge and disc such that the focus point of the focusing sensor system corresponds to the target point on the processing result, and detecting and examining signals received from the focusing sensor system for determining properties of the processing result.

Method and apparatus for controlling a focus point of a stationary beam focusing on a sample in a rotating cartridge placed in a rotating disc

Provided is a centrifuge apparatus for a processing cartridge, including a rotary plate and at least one cartridge holder, and the cartridge holder is rotatable around its centre axis and arranged off-centre the centre axis of the rotary plate and comprises an inner side wall surrounding a through-going passage, wherein the through-going passage is able to accommodate the processing cartridge; and the inner side wall includes a resilient locking assembly for interaction with at least one cooperating first abutting surface on the processing cartridge, such that the processing cartridge may be inserted into the through-going passage and releasably secured by the locking assembly; and at least one stopping element for interaction with at least one cooperating second abutting surface on the processing cartridge, the at least one stopping element being arranged to retain the processing cartridge at a desired vertical level when the cartridge is releasably secured.

Centrifuge apparatus for a processing cartridge having a rotary plate and a stopping element

A system for processing information is provided. The system includes multiple micro-holograms contained in multiple volumes arranged along multiple tracks in one or more storage mediums. Each of the micro-hologram includes a data. The system also includes one or more pick-up head devices with optical lenses for directing laser beams on the multiple tracks. Further, the system includes a subsystem for arranging the one or more pick-up head devices for recording and retrieving of the data from the one or more storage mediums.

System and method for transfer of data stored in holographic storage medium

In a data recording system utilizing multiple channels and data blocks wherein the data blocks are read subsequent to being written so as to check for errors, the data blocks are rewritten according to a method to provide for rewriting only the defective data blocks. The blocks may be rewritten on other than their original channels. Channels for rewriting are determined by selecting a channel with a highest current block number so that data is rewritten in a channel which has been able to write and verify the most of its original blocks. Error checking is continued in a channel even after finding of an error in that channel. Data blocks of the frames may be skewed between the channels at a beginning of the frame. A ring counter output is applied to break a deadlock where a block is continously rewritten on a failing channel.

Multiple channel rewrite system

A method for seeking the center of a data track recorded on a magnetic tape using a read head, having an accuracy which is not limited by the stepper mechanism which positions the read head relative to the tape, makes use of the discovery that the fundamental component of tape wander is independent of the tape cartridge vendor and the tape length, and therefore the tape wander can be averaged over an integral number of tape wander periods. In the method, the average output from a read head over an integral number of tape wander periods is found at the lower and upper edges of a data track. The read head output from the center of the track is then measured, and is used to calculate an output change versus head position when the read head is partially in the track. The output change versus head position is then used to scale the lower or upper edge position to a position which would result in an output equal to the output found for the opposite edge, and then the center of the track can be found by dividing the sum of one edge position plus the corrected position for the opposite edge by two.

Method for seeking the center of a recorded data track

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Oslo, Norway

Rolf Jahren