摘要:
This invention relates to a method and an apparatus for the three-dimensional digitization of objects with a 3D sensor, which comprises a projector and one or more cameras, in which a pattern is projected onto the object by means of the projector, and the pattern is detected with the one or more cameras. In accordance with the invention, the method and the apparatus are characterized in that at least three reference marks and/or a reference raster are projected onto the object with the 3D sensor and are detected with two or more external, calibrated digital cameras.
摘要:
Time-to-digital converter arrangements and corresponding methods as well as applications thereof are described. The time-to-digital converter in a first mode is coupled with a calibration signal generator and in a second mode is coupled with signal input.
摘要:
A method and system for interactively exploring data objects is provided. A user action selecting a portion of a first one of the data objects. The selected portion of the first one of the data objects comprising at least one attribute correspondingly mapped to a meaning. At least one query is retrieved, the at least one query comprising at least one input parameter correspondingly mapped to the meaning associated with the at least one attribute of the selected portion. In response to a user selection of the retrieved query, a value of the at least one attribute of the selected portion is passed as input to the retrieved query. A search request is generated based on the retrieved query with the passed value as the input parameter to obtain at least a second data object representing supplementary data related to the first one of the data objects.
摘要:
A feedback loop is used to determine phase distortion created in a signal by directly extracting the phase distortion information from a feedback signal using original frequency modulation information.
摘要:
A feedback loop is used to determine phase distortion created in a signal by directly extracting the phase distortion information from a feedback signal using original frequency modulation information.
摘要:
A method serves for the determination of the 3D coordinates of an object (1). An improved method of this kind is characterized in that the object (1) is surrounded by a plurality of reference probes (2, 3, 4, 5, 6) having coded reference marks (7, 8); and in that a plurality of shorts (10) are taken of the object (1) such that a part of the object (1) and a part of a reference probe (2, 3) is in each case included thereon.
摘要:
The present invention relates to a method and a device for determining the spatial position of a sensor, in which a rough position information initially is determined by rough detection of the position of the sensor, and then the more accurate position of the sensor is obtained by measuring at least three reflectors mounted on the sensor with a laser tracker, wherein the search region of the laser of the laser tracker is limited for the reflectors with reference to the rough position information.
摘要:
A frequency modulator includes a tuning circuit configured to determine a nominal gain characteristic of a digitally controlled oscillator (DCO) in a first mode, and to determine an actual gain characteristic of the DCO in a second mode using the nominal gain characteristic. The frequency modulator also comprises a modulation circuit comprising the DCO coupled to the tuning circuit, configured to modulate a frequency of a DCO output signal with a modulation signal input, and to scale the modulated DCO output signal based on the actual gain characteristic in the second mode to provide gain compensation and frequency modulation of the DCO. The tuning circuit may include a select switch to couple a minimal and maximal tuning word to the DCO in the first mode and an actual operating point word in the second mode to the DCO to determine the nominal gain characteristic.
摘要:
A polar modulator arrangement has a first and a second node to receive a digital signal with a first and a second component corresponding to a digital amplitude component and a digital phase component. A digital interpolation filter generates an interpolated first component by interpolating and filtering the first component. A polar modulated radio frequency signal is generated by a combination element as a function of the interpolated first component and the second component.
摘要:
The present invention provides a system for high-throughput analysis of chemical compounds. Assays are performed in a high density platform, and compounds having pre-determined desirable effects are identified. Preferably, the compounds have biological effects, more preferably, the assays and detection are performed on whole cells.