Abugharbieh
Khaldoon Abugharbieh, San Jose, CA US
Patent application number | Description | Published |
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20080238737 | REFERENCE VOLTAGE SHIFTING TECHNIQUE FOR OPTIMIZING SNR PERFORMANCE IN PIPELINE ADCS WITH RESPECT TO INPUT SIGNAL - An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a plurality of digital intermediate signals in response to an analog input signal, a first set of threshold and reference voltages and a second set of threshold and reference voltages, where the threshold and reference voltages of the first set are shifted with respect to corresponding threshold and reference voltages of the second set. The second circuit may be configured to generate a digital output signal in response to the plurality of digital intermediate signals. | 10-02-2008 |
20110234318 | LOW VOLTAGE DIFFERENTIAL SIGNAL DRIVER WITH REDUCED POWER CONSUMPTION - A low voltage differential signal (LVDS) driver circuit with reduced power consumption. A pre-driver stage, implemented as a differential current mode amplifier, is driven by the differential input signal and provides a corresponding differential drive signal, which drives the output stage, implemented as a differential voltage mode amplifier, which, in turn, provides the differential output signal for the load. Total current consumption equals the load current, which is provided by the output stage, plus a much smaller current used by the pre-driver stage. | 09-29-2011 |
Khaldoon S. Abugharbieh, San Jose, CA US
Patent application number | Description | Published |
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20130002410 | RECEIVER CIRCUIT - A receiver circuit includes an analog front-end circuit, a first adaptation circuit, and a second adaptation circuit. A method operates the receiver circuit. The analog front-end circuit is configured to resolve an output signal from an input signal as a function of adjustable parameters. The first adaptation circuit is coupled to the analog front-end circuit and is configured to determine values of the adjustable parameters responsive to the output signal. The second adaptation circuit is coupled to the analog front-end circuit and to the first adaptation circuit. The second adaptation circuit is configured to adjust the values of the adjustable parameters responsive to one or more operating conditions of the receiver circuit. These operating conditions include a temperature and/or a power supply voltage of the receiver circuit. | 01-03-2013 |
Rafeef Abugharbieh, Vancouver CA
Patent application number | Description | Published |
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20140198979 | METHODS AND SYSTEMS FOR INTERACTIVE 3D IMAGE SEGMENTATION - Methods and systems for interactively segmenting 3D image data are provided. An initial segmentation of the 3D image data is obtained, and for each of a plurality of image regions, a segmentation uncertainty indicator for the initial image segmentation is associated with the image region and a strength is assigned to the segmentation uncertainty indicator. A low-confidence region in the 3D image data is identified based at least in part on proximity of the low-confidence region to the image regions and strengths of the corresponding segmentation uncertainty indicators. An optimization routine may be applied to an objective function whose value depends at least in part on proximity of the candidate region to the image regions and the strengths of the corresponding uncertainty indicators to identify the low-confidence region from among a plurality of candidate regions. | 07-17-2014 |