摘要:
The present invention relates to a method for calibrating the colour of a colour monitor with LED backlighting, in which at least one area of an image displayed on the colour monitor (1) is remotely measured in a spatially resolved manner using a colour sensor (7) in the form of an image or line sensor, deviations of measured colour values from desired colour values are determined in a spatially resolved manner, and LED backlighting of the colour monitor (1) is controlled in order to locally correct the deviations. When the colour sensor (7) is integrated into the remote control (2) of a colour TV, the user only suitably orients the remote control (2) with respect to the TV, as a result of which the colour sensor (7) records a test image (3) of the colour TV and evaluates said image in order to determine colour corrections. The method makes it possible to easily calibrate the colour of a colour TV ex works or directly with the user.
摘要:
In a process and with a device for non-contact measurement of speed on surfaces, in particular for ski speed measurement on snow surfaces, a signal (102) with a fixed frequency is beamed in the direction of travel (106) at a beam angle ( alpha ) which is less than a half aperture angle ( THETA /2) of the device (100) emitting the signal (102); a signal (110) reflected at the surface (104) and Doppler-shifted relative to the beamed signal (102) is received; from the Doppler spectrum of the received signal (110) that portion with the highest frequency and an energy value above a predetermined level is determined, and the speed is derived from the frequency of the determined portion of the spectrum.
摘要:
Ausführungsbeispiele schaffen einen Datenempfänger, wobei der Datenempfänger konfiguriert ist, um ein Signal, das eine Folge von N Bits aufweist, zu empfangen, um ein Empfangssignal zu erhalten, wobei N eine natürliche Zahl größer gleich acht ist, N ≥ 8, wobei der Datenempfänger konfiguriert ist, um das Empfangssignal mit einer Abtastrate, die mit einer absichtlichen Abweichung von bis zu 2/N einem Abtastwert pro Bit der Folge von N Bits entspricht, abzutasten, um eine Folge von empfangenen Bits zu erhalten, wobei der Datenempfänger konfiguriert ist, um die Folge von empfangenen Bits mit K unterschiedlichen Folgen von N-1 Referenzbits zu korrelieren, um K Teilkorrelationsergebnisse zu erhalten, wobei K kleiner gleich N-1 und größer gleich drei ist, N-1 ≥ K ≥ 3, wobei die K unterschiedlichen Folgen von Referenzbits unterschiedlich punktierte Versionen der gleichen Grundfolge von N Referenzbits sind, wobei der Datenempfänger konfiguriert ist, um die Folge von N Bits zu detektieren, wenn zumindest eines der K Teilkorrelationsergebnisse eine Detektionsschwelle überschreitet.
摘要:
The invention relates to a device with two line pairs (16a; 16b) which comprise a first and a second channel. The device further comprises a phantom channel which is designed to provide a third channel without having to physically install lines. A first common-mode signal level (33a) is generated at a first output of a differential amplifier circuit, and a second common-mode signal level (33b) is generated at a second output on the basis of a differential signal. The first common-mode signal level (33a) is applied to the lines of the first line pair (16a), and the second common-mode signal level is applied to the lines of the second line pair (16b). An extraction circuit (39) is designed to extract common-mode components on the lines of the first line pair (16a) and the lines of the second line pair (16b).
摘要:
The present invention relates to an optical bandpass filter system, which has at least one combination of a bandpass filter comprising a first nanostructured metallic layer (4) and a bandstop filter comprising a second nanostructured metallic layer (7), which are arranged one behind the other and the layer thicknesses of which differ. The bandstop filter is tuned to the first bandpass filter in such a way that it blocks a contiguous wavelength range that partially overlaps with a pass-band width of the bandpass filter. With the proposed optical filter system, different filter characteristics can be realized in a confined space alongside one another with a small pass-band width.
摘要:
A system (30) for determining an index of refraction (n (object)) of a measured object (31), comprising a light source (32) for issuing light (33) of a pre-defined wavelength, an integrated sensor element (35) with an optoelectronic sensor (36) and a layered structure (37) with at least one structured metal layer (44) wherein the optoelectronic sensor (36) and the layered structure (37) are commonly integrated on a semiconductor substrate (38), a device (39) for holding the measured object (31) between the integrated sensor element (35) and the light source (32) so that the layered structure (37) is disposed between the measured object (31) and the optoelectronic sensor (36), and so that an output signal from the optoelectronic sensor (36) to the light (33) with the pre-defined wavelength changes depending on the index of refraction (n(object)) of the measured object (31), and a device (40) for determining the index of refraction (n(object)) of the measured object (31) based on the output signal of the optoelectronic sensor (36).
摘要:
The invention relates to a device having a first optical component (102) on a first printed circuit board surface (104), a second optical component (106) on a second printed circuit board surface (108), wherein the first printed circuit board surface (104) and the second printed circuit board surface (108) are substantially disposed successively parallel to each other such that the first printed circuit board surface (104) and the second printed circuit board surface (108) point in the same normal direction (110), and wherein both the first optical component (102) and the second optical component (106) can be coupled to an optical interface positioned in a normal direction (110) behind the first and the second printed circuit board surfaces.
摘要:
The invention relates to a Hall sensor array for measuring a magnetic field with offset compensation, comprising a first pair (1A, 1B) and at least one additional pair (2A, 2B; 2A, 2B, 3A, 3B) of Hall sensor elements, whereby each Hall sensor element (1A, 1B, 2A, 2B; 1A, 1B, 2A, 2B, 3A, 3B) has four connections (K1, K2, K3, K4), of which a first and a third connection (K1, K3) act as power supply connections for supplying an operating current (I¿Operation?) and a second and fourth connection (K2, K4) act as measurement connections for measuring a Hall current (UHall). The Hall sensor elements (1A, 1B, 2A, 2B; 1A, 1B, 2A, 2B, 3A, 3B) are arranged in such a way that the current directions of the operating current (I¿Operation?) in the two Hall sensor elements of each pair are offset at an angle of approximately 90°, in relation to one another. The Hall sensor elements (2A, 2B; 2A, 2B, 3A, 3B) of the additional pair(s) are arranged in such a way that their current directions are offset at an angle of approximately 90°/n, in relation to the current directions of the first pair (1A, 1B), whereby n is the total number of Hall sensor element pairs and n ≥ 2.