Nguyen-Van-Yen, Christian

Methods and apparatuses to detect particles in dense particle fields are described. A time varying signal is partitioned into a plurality of timing segments. Parameters are determined from the timing segments. The time varying signal is parsed into a plurality of individual particle signal components based on the plurality of parameters.

An object is associated with an identifier which is detectable on the object. The identifier may be an inherent characteristic of the object itself or its packaging, or it may reflect a random or arbitrary value which may then be disposed on the object or its packaging deliberately in a readable form for the purposes of the invention. Additionally, there is disposed a machine readable code comprising a URI incorporating a representation of the object identifier encoded according to one of a number of predefined encoding methods (algorithm and associated parameters), and an encoding identifier, specifying the encoding method used. A reader can read the machine readable code, decode it according to specified encoding method, and prepare a representation of it for comparison with the characteristic reflecting the object identifier. The machine readable code and the characteristic reflecting the object identifier may be readable for example by optical, tactile, radio, olfactive or acoustic mechanisms. The URI may additionally be defined to call a local resource adapted to process the code. The URI may additionally be defined to specify a web site.

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There is disclosed a device for handling multipath of a G.N.S.S. signal, said device being configured to: - determine a spatial position, a clock time and measured multipath parameters comprising a relative delay and relative amplitude; - communicate to a remote server said spatial position, clock time and multipath parameters; and - receive processed multipath parameters as determined by the remote server. Systems comprising a plurality of such devices and their variants are described. Further aspects are described, in particular the exclusion of one or more satellites, the use of threshold schemes, pull/push modes, configurable refresh rates, quantization of positions, activation of additional sensors, filtering options, determination of merit factors for example as a function of the number of satellites in view and/or of signal-to-noise ratio, peer-to-peer schemes, as well as graphical display, audible sound or haptic feedbacks.

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