Sony Dadc Austria Ag

Josef Schuller

Gottfried Reiter

Hans-Peter Niederberger

Klaus Holzapfel

Günther Kattner

Andrej Peterca

A method for manufacturing an optical waveguide, in which a waveguide structure including a waveguide layer of ZnS&#x2014;SiOis deposited on a first layer, wherein a first refractive index of the first layer is lower than the refractive index of the waveguide layer. A sensor arrangement includes a planar optical waveguide, a light source, a sensor, an application unit for applying an analyte on top of the planar waveguide and a processor connected to the sensor.

Method for manufacturing an optical waveguide, optical waveguide, and sensor arrangement

An optical data carrier includes at least one session in which one or more tracks are stored, wherein each session includes a plurality of data frames, and wherein each data frame includes controlling data and content data coded in a first format. In place of at least part of at least one bit sequence which would be included within said content data and which would correspond to constant data with respect to a second format into which said content data would be converted during a reading process, if said one or more tracks had been transferred onto said optical data carrier in accordance with a predetermined CD standard, the at least part of the at least one bit sequence is represented by a bit sequence which does not correspond to constant data with respect to said second format.

Optical data carrier

The current invention is directed to a method and optical storage media reading device for restoring data stored along a data storage path of an optical storage media, the data being stored on the optical storage media and being at least in part unreadable by a conventional optical storage media reading device due to chemical or physical changes within a recording layer or a reflective layer of the optical storage media. The method and device includes detecting deformations of a shape of a groove and lands of the groove extending along the data storage path, the deformations having been generated by a laser beam during a recording process of the optical storage media, and determining the data to be restored from the detected deformations and lands.

Method for restoring data stored on an optical disc and optical disc drive suitable therefore

A recordable optical disc () comprises at least one user data area () for storing user data, and at least one controlling data area () for storing controlling data necessary for accessing stored user data and/or for recording user data into a user data area (), wherein at least a part of the physical structure of the optical disc corresponding to at least a part of at least one controlling data area () and/or to at least a part of at least one user data area () has a modified physical structure () which is arranged such that a standard optical disc recorder cannot record user data into at least a part of at least one user data area and/or controlling data area ().

Recordable optical disc

A system for modulating digital binary data to be recorded on a recording medium comprises the generation of channel bits of the digital binary data to be recorded according to a standard for the recording medium with the exception that a maximum run length larger than that defined in the standard is obtained and/or the merging decision is influenced on basis of a random noise in a predetermined pattern or in at least one predetermined position on said recording medium and/or by recording at least one part comprising at least one predetermined repetitive bit pattern which normally, i.e. according to the standard for the recording medium, encodes into channel bits having a spectral distribution that shows at least one range of frequencies with a characteristic amplitude distribution.

Data recording method and data recording medium

A disc shaped optical record carrier with special disc shape modifications at the inner edge (edge of the centre hole), and/or the clamping area, and/or the outer edge (edge in rim area) is provided so that a disc that is thicker than the currently manufactured discs can be properly played back although the current playback devices are adapted to the thinner currently manufactured discs.

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Salzburg, Austria

Josef Schuller