Kouwenhoven
Arjan Kouwenhoven, Monster NL
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20150082696 | HORTICULTURAL GROW GUTTER - A horticultural system having a horticultural grow gutter produced from a single sheet of material and including an upper bridge a length, a bottom surface, and two side edges. Two upwardly facing upper channel sections are each individually integral with one of the two side edges along the length of the upper bridge section. The upwardly facing channel sections have a channel bottom having a plurality of apertures configured to allow a liquid to pass through the apertures by gravity. Two side panels are each individually integral with one of the top edges and extend downward from the top edge. An inwardly bent and upwardly facing lower channel section is integral with each side panel and the upwardly facing lower channel section is sized and positioned to receive the liquid passing through the apertures disposed below the upper channel section. | 03-26-2015 |
Marc Kouwenhoven, Eindhoven NL
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20110206260 | AUTOMATED SEQUENTIAL PLANNING OF MR SCANS - A method of acquiring at least one clinical MRI image of a subject comprising the following steps: acquiring a first survey image with a first field of view, the first survey image having a first spatial resolution,—locating a first region of interest and at least one anatomical landmarks in the first survey image, determining the position and the orientation of the first region of interest using the anatomical landmarks, the position and the orientation of the first region being used for—planning a second survey image,—acquiring the second survey image with a second field of view, the second survey image having a second spatial resolution, the second spatial resolution being higher than the first spatial resolution, generating a geometry planning for the anatomical region of interest using the second survey image,—acquiring a diagnostic image of the anatomical region of interest using the geometry planning. | 08-25-2011 |
Michael Hendrikus Laurentius Kouwenhoven, Zoetermeer NL
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20100194461 | EXTENDED RANGE RMS-DC CONVERTER - Described herein is technology for, among other things, reducing offset errors in RMS-to-DC converters. The technology involves generating first and second feedback signals with first and second feedback paths respectively. A multiplier is then employed to receive first and second signals and provide a third signal based on multiplying the first signal and the second signal. The first signal is based on an input signal and the first feedback signal, and the second signal is based on the input signal and the second feedback signal. A chopper is then employed to receive an output signal, which is based on the third signal, and a chopping signal, and in turn provide a fourth signal based on multiplying the output signal with the chopping signal. As a consequence, the fourth signal represents the output signal shifted to a frequency different than that of low-frequency noise components of the first and second signals. | 08-05-2010 |
Michael Hendrikus Laurentius Kouwenhoven, Morgan Hill, CA US
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20120146819 | SIGMA-DELTA DIFFERENCE-OF-SQUARES LOG-RMS TO DC CONVERTER WITH FORWARD PATH MULTIPLIER AND CHOPPER STABILIZATION - A sigma-delta (ΣΔ) difference-of-squares LOG-RMS to digital converter for true RMS detection by merging a ΣΔ modulator with an analog LOG-RMS to DC converter based on a difference-of-squares. Chopper-stabilization, implemented through commutators running at two different frequencies, can be employed to reduce sensitivity to DC offsets and low-frequency errors, resulting in an extension of the useful input-referred dynamic range. High-order ΣΔ LOG-RMS converters can be implemented with a loop filter containing multiple integrators and feedforward and/or feedback paths for frequency compensation. The resulting implementations are ΣΔ difference-of-squares LOG-RMS to DC converters with a natural digital output and a logarithmically compressed dynamic range. | 06-14-2012 |
20140233288 | HIGH-FREQUENCY RMS-DC CONVERTER USING CHOPPER-STABILIZED SQUARE CELLS - An RMS-DC converter includes a chopper-stabilized square cell that eliminates offset, thus enabling high-bandwidth operation. The chopper-stabilized offset requires only a small portion of the circuitry (i.e., a single component square cell) which operates at high frequencies, and is amenable to using high-bandwidth component square cells. Using the chopping technique minimizes required device sizes without compromising an acceptable square cell dynamic range, thereby maximizing the square cell bandwidth. The RMS-DC converter consumes less power than conventional RMS-to-DC converters that requires a high-frequency variable gain amplifier. | 08-21-2014 |