Abstract: Multi-user shared mixed reality devices, methods, and systems are disclosed. The disclosure includes a plurality of head-mounted mixed reality systems, interconnected through a network that may also include a central server. A first user defines the boundaries of a first room containing said first user, as well as the boundaries of one or more objects within said room. Said first user also defines the location and/or boundaries of an inter-user window for sharing mixed reality elements with other users. Additional users perform similar definitional steps. Multi-user matchmaking is performed, comprises virtually stitching together a virtual version of a first physical room associated with said first user with a virtual version of a second physical room associated with a second user at a location where a first virtual inter-user window and a second virtual inter-user window coincide. Various combinations of the disclosed devices, methods, and systems may be implemented.

Abstract: The present invention refers to a method for producing a low-emitting plasticised polyvinylchloride composition, having a fusion time of less than 5.50 s and a volatility of less than 10% weight loss, by mixing pentaerythritol tetravalerate with a polyvinylchloride composition, the fusion time being measured according to DIN 54 802 and ISO/DIS 4574 and the volatility being measured according to ISO 176 Method A. In a further aspect the present invention refers to a thermoplastic article suitable for use in environments where the article is exposed to heat, wherein the thermoplastic article is based on a plasticized polyvinylchloride composition produced by the method of the present invention.

Abstract: A marine riser includes at least two riser sections which are connected in an end-to-end relationship. The at least two riser sections extend between a subsea installation and a suspension device arranged above the subsea installation. At least one of the at least two riser sections includes at least one pipe having a heat exchanger.

Abstract: A marine riser includes at least two riser sections which are connected in an end-to-end relationship. The at least two riser sections extend between a subsea installation and a suspension device arranged above the subsea installation. At least one of the at least two riser sections includes at least one pipe having a heat exchanger.

Abstract: The present invention refers to a method for producing a low-emitting plasticised polyvinylchloride composition, having a fusion time of less than 5.50 s and a volatility of less than 10% weight loss, by mixing pentaerythritol tetravalerate with a polyvinylchloride composition, the fusion time being measured according to DIN 54 802 and ISO/DIS 4574 and the volatility being measured according to ISO 176 Method A. In a further aspect the present invention refers to a thermoplastic article suitable for use in environments where the article is exposed to heat, wherein the thermoplastic article is based on a plasticized polyvinylchloride composition produced by the method of the present invention.

Abstract: The present invention refers to a plasticiser, said plasticiser being an ester formed by reaction of a pentaerythritol and a monocarboxylic acid, having 4-5 carbon atoms. In a further aspect the present invention refers to the use of said plasticiser in blends and in a PVC resin. The plasticiser of the present invention is a non-phthalic plasticiser that has proven to have shorter fusion time and higher plasticising efficiency compared to commercial non-phthalic PVC plasticisers.

Abstract: A method for left shifting data includes left shifting the data to produce a left-shift result, right shifting the data to produce a right-shift result, and determining if the left-shift result requires saturation based on the right-shift result.

Abstract: A parallel system for performing LMS coefficient adaptation includes a data memory, a tap memory, and two or more LMS hardware units. The LMS hardware units utilize data stored in the data memory and coefficients stored in the tap memory for performing multiple LMS coefficient adaptations in parallel.

Abstract: A DSP system includes a DSP processor, at least one accelerator and an accelerator interface connected between the DSP processor and the at least one accelerator. The accelerator interface includes an accelerator instruction bus to convey instructions from the DSP processor to the accelerators. The DSP processor assigns an accelerator field in the instruction when the instruction is used to access the accelerators and further assigns an accelerator ID field in the instruction when the DSP processor selects a specific accelerator. The instruction also contains information to indicate a register address in the DSP processor and the command sent to the elected accelerator.

Abstract: A method for left shifting data includes left shifting the data to produce a left-shift result, right shifting the data to produce a right-shift result, and determining if the left-shift result requires saturation based on the right-shift result.

Abstract: In a system for navigating a vehicle according to the appearance of the surface region over which it moves there are at least three devices adapted to carry out a position determination of the vehicle according to a predetermined algorithm as well as members adapted to compare the positions determined by the devices and at a substantial deviation of any position from the other positions assume that this is erroneous and form an average of the other positions as the correct position of the vehicle.

Abstract: In a system for navigating a vehicle according to the appearance of the surface region over which it moves there are at least three devices adapted to carry out a position determination of the vehicle according to a predetermined algorithm as well as members adapted to compare the positions determined by the devices and at a substantial deviation of any position from the other positions assume that this is erroneous and form an average of the other positions as the correct position of the vehicle.

Abstract: In a method for controlling a secondary voltage (US) in a transformer device connected to a power network with a given system frequency (f1), which transformer device comprises a tap-changer (TC) which, in dependence on a supplied control signal (RCS), influences the voltage ratio (RAT) of the transformer device, a voltage variable (uE) is formed in dependence on the secondary voltage. The voltage variable comprises at least one first control component (u1, &phgr;1) which represents a fundamental component of the secondary voltage, and a control quantity (EPV, EEV) is formed in dependence on the voltage variable. The control signal is formed in dependence on a deviation (DPV, DEV) between the control quantity and a given reference value (PVR, EVR) therefor and is supplied to the tap-changer. The actual fundamental frequency (f1*) of the power network is continuously sensed and the voltage variable is formed in dependence thereon.