Abstract: According to an aspect, there is provided a method for determining information about an arterial property of an artery of a subject.

Abstract: A control unit (12) and method for deriving a measure of arterial compliance based on an acquired arterial volume variation signal and measured diastolic and systolic blood pressure measurements. An oscillometric blood pressure measurement device is used to obtain a first signal representative of arterial volume variations and to obtain blood pressure measurements. Both are measured as an applied pressure to an artery is varied by the oscillometric blood pressure measurement device. The first signal is processed to compile a dataset of values, ?V, representative of the change in the arterial volume for set step changes, ?P, in applied pressure, at different transmural pressure values. This set of values is numerically integrated to derive a function of arterial volume with transmural pressure. This function is differentiated to thereby derive a function of arterial compliance with transmural pressure.

Abstract: The present invention relates to a recording apparatus, record carrier and method of recording data on at least two layers of a recording medium by using a radiation power, wherein individual recording speeds are determined for respective ones of the at least two layers at different values of the radiation power. A recording speed to be used for recording on an individual one of the at least two recording layers is selected based on a maximum radiation power specified for the recording operation, and the speed of the recording operation is controlled individually for each of the at least two layers based on the selected recording speed. The determination of the individual recording speeds at different radiation power values may be written or embossed on the record carrier. Furthermore, a recording sequence used for recording on the recording layers can be set based on the sensitivities and thus recording speeds. Thereby, total recording time can be minimized for multi-layer recording media.

Abstract: A data handling device is provided with a data memory (10) with an address input and a data output, for outputting multi-bit words. The data memory (10) has a structure that gives rise to potential errors at correlated positions in words from a group of words. An erasure memory unit (16) stores bit position information associated with a group of the words, and outputs the bit position information when a word from the group for which bit position information is stored is addressed in the data memory (10). An error correction and detection unit (12) is arranged to correct words from the data memory (10), using error erasure for bits at bit positions selected by the bit position information from the erasure memory unit (16) for the groups to which the words belong.

Abstract: A dual-stack optical data storage medium (10) for write-once recording using a focused radiation beam (9) having a wavelength ? of approximately 655 nm is described. The radiation beam enters through an entrance face (8) of the medium (10) during recording. The medium comprises at least one substrate (1, 7) with present on a side thereof: a first recording stack (6), named L0, comprising a write-once type L0 recording layer, said first recording stack L0 having an optical reflection value RL0 and an optical transmission value TL0, a second recording stack (3), named L1, comprising a write-once type L1 recording layer, said second recording stack L1 having an effective optical reflection value RL1eff. The first recording stack (6) is present at a position closer to the entrance face (8) than the second recording stack. (3). A transparent spacer layer (4) is sandwiched between the recording stacks (3, 6). The reflection values RL0 and RL1eff are within the following ranges: 0.12?RL0?0.18 and 0.12?RL1eff?0.

Abstract: A writable optical record carrier (100) comprising a plurality of recording layers LO, . . . , Ln-1 separated by a spacer material, each recording layer comprising an optimum power calibration area (101,111,121,131) having a first portion (102,112,122) with an average reflection value representative of a recorded layer and a second portion (113,123,133) with an average reflection value representative of an unrecorded layer, a method, and an apparatus for forming optimum power calibration areas on such a writable optical record carrier are presented. The optimum power calibration areas partially overlap such that the optimum power calibration areas of each pair of consecutive recording layers form a step, and the first portions of said plurality of recording layers have the form of a staircase. Each step formed by a pair of consecutive recording layers k, k+1 has a preferred minimum step size.

Abstract: A record carrier is for recording information by writing marks in a track on a recording layer. The shortest mark used for recording the information has a length of a predefined minimum number d of channel bit lengths. The record carrier (11) has a pregroove that is modulated by a carrier pattern containing focus marks (18,19) that provides a focus area (12) at a predefined location on the recording layer. The focus marks have lengths of at least two times the length of the shortest mark for being substantially longer than the effective diameter of the scanning spot. A scanning device locates the focus area and determines the best focus offset by detecting the maximum read signal amplitude while scanning the carrier pattern.

Abstract: The invention discloses a method and a device for recording information on a multi layer optical disc using a multi session format. The use of multi sessions allows for an efficient use of the storage capacity of the disc, and for a fast finalization time.

Abstract: This invention relates to a method for recording information on a multi layer record carrier. The information is recorded on the record carrier according to special filling patterns, such that the record carrier is compatible with the DVD-ROM standard while the time required for closing a session and/or finalizing the disc is reduced. The information is substantially evenly distributed over the layers in blocks of a predefined amount of storage space. The size of these blocks may be flexible and set by the method or read from the record carrier.

Abstract: A record carrier is for recording information by writing marks in a track. The record carrier has at least a first recording layer (40) and a second recording layer (41). Each layer has a pregroove (14) indicating the position of the track and exhibiting a wobble modulated for representing physical address information. In addition the pregroove has a pregroove modulation (13) consituted by variations of a physical parameter related to the shape of the pregroove for encoding axiliary control information. In a scanning device the pregroove modulation is detected in the main detector signal by variations of the reflected radiation.

Abstract: A multi-layer record carrier is for recording information by writing marks in a track. The record carrier has a first recording layer (40) and a second recording layer (41), and each recording layer has a pregroove (14) indicating the position of the track according to an opposite track path. The pregroove exhibits a modulated wobble for representing control information. A lead-in part of the pregroove has first control information for the first recording layer, and the lead-out part on the second recording layer has second control information including recording parameters for the second recording layer. The device the device has a head (22) for providing the beam and wobble detection means (32) for retrieving control information from each layer.

Abstract: A multilayer record carrier is for recording information by writing marks representing addressable blocks in a track. Each recording layer has a pre-formed recording control pattern for indicating the track, the pattern comprising physical addresses (59) that indicate the physical position of the physical address with respect to a starting point of the track. The predefined number of bits of the physical address indicates the physical position with respect to a starting point of the track. At least one address bit of the predefined number of address bits of the physical address is allocated as a layer address bit (60) that has a value indicating the recording layer. A recording device has a layer unit (34) for detecting a recording layer in dependence of the layer address bit.

Abstract: Recordable DVD+R and DVD+R/W optical discs with two (or more) information layers are developed to double the data storage capacity and video recording time. A method and device are proposed to make dual layer DVD disc recordings compliant with the dual layer DVD-ROM standard Recording the data in a DVD-ROM compliant way on the dual layer DVD+R or DVD+R/W disc is obtained by shifting the middle zone area towards the inner radius of a disc in such a way that the data zones of both layers are filled up with data.

Abstract: A record carrier is for recording information by writing marks in a track on a recording layer. The shortest mark used for recording the information has a length of a predefined minimum number d of channel bit lengths. The record carrier (11) has a pregroove that is modulated by a carrier pattern containing long marks (18,19) that provides a focus area (12) at a predefined location on the recording layer. The long marks have lengths of at least two times the length of the shortest mark for being substantially longer than the effective diameter of the scanning spot. A scanning device locates the focus area and determines the best focus offset by detecting the maximum read signal amplitude while scanning the carrier pattern.

Abstract: A method of recording information on a multilayer record carrier includes a power control procedure for setting the writing power of a recording beam for a lower recording layer (41). First an upper area in an upper recording layer (40), i.e. the recording layer closest to the laser entry side of the record carrier, is recorded. Secondly a power control zone (60) is located on the lower recording layer such that the upper area substantially covers a radial position range on the upper recording layer corresponding to a radial position range of the power control zone on the lower recording layer (41). Finally an optimum power control (OPC) procedure for setting the writing power of the beam for the lower recording layer is performed by writing a test pattern of marks in the power control zone.

Abstract: A rewritable optical record carrier comprising a first substrate carrying a first recording stack of layers, which recording stack comprises, a first dielectric layer, a recording layer comprising a phase-change recording material, a second dielectric layer, and a metal mirror layer. In order to achieve a maximum R*M said first dielectric layer has a thickness d1 in the range of 20 nm to 50 nm, and said second dielectric layer has a thickness d2 according to the relation 0.0225*d22?2.6572*d2+173.3 (nm)<d1<0.0225*d22?2.6572*d2+213.3 (nm) when the mirror layer comprises aluminum, or a thickness d2 according to the relationship 0.0191 *d22?2.0482*d2+149.6 (nm)<d1<0.0191*d22?2.0482*d2+189.6 (nm) when the mirror layer comprises silver.

Abstract: A multi-stack optical data storage medium (20) for rewritable recording using a focused radiation beam (30), entering through an entrance face (25) is described. The medium (20) has a substrate (1a, 1b) and an L0 recording stack (2) and an L1 recording stack (3) both comprising a phase-change type L0 and L1 recording layer and the recording stacks are separated by a transparent spacer layer (4). The L0 recording stack (2) is present at a position closest to the entrance face (25) and has an optical transmission of TL0a and TL0c when the phase-change layer respectively is in the amorphous phase and in the crystalline phase. The medium (20) contains pre-recorded information modulated in at least one of: an embossed pregroove (21) in the substrate (1a, 1b), embossed pits in the substrate and recorded phase-change marks in at least one of the recording layers L0 and L1 (6, 11).

Abstract: Radiation-emitting semiconductor device and method of manufacturing such a device. The invention relates to a radiation-emitting semiconductor device (10) comprising a silicon-containing semiconductor body (1) and a substrate (2), which semiconductor body (1) comprises a lateral semiconductor diode positioned on an insulating layer (7) which separates the diode from the substrate (2).

Abstract: The invention relates to an arrangement of a chemical-mechanical polishing tool for chemical-mechanical polishing a surface on a wafer, comprising a polishing pad (4), a drive unit (9), pressing means (6), a wafer holder (5), first dispensing means (7) and second dispensing means (8); the wafer holder for holding a wafer (W) being arranged at a holder location (L0); the pressing means (6) being arranged to press the wafer holder (5) to the polishing pad (4); the first dispensing means (7) for dispensing a first fluid on the polishing pad (4) being arranged at a first dispensing means location (L1); the second dispensing means (8) for dispensing a second fluid on the polishing pad (4) being arranged at a second dispensing means location (L2); the polishing pad (4) comprising a polishing surface for polishing the wafer (W), and the polishing pad (4) further being connected to the drive unit (9) for moving the polishing surface in a first direction (?1) relative to the holder location (L0); wherein the first di