Abstract:
An internal ADC in a delta-sigma ADC is characterized using inherent delta-sigma ADC circuitry. In one embodiment, a constant DC value is applied as the input signal. The sum of the constant DC value and a feedback signal is integrated. Then, a digital approximation including the integrated sum is generated. The feedback signal is generated and allows ramping of the integrated sum.
Abstract:
A method and system to detect a correlation of movements of an input device, sent from a first location, with at least one configurable movement parameter set on a remote computer at a second location remote from the first location, wherein the method includes: (a) sending first movement information from the first location to the remote computer at the second location, the first movement information corresponding to a first movement of the input device; (b) tracking a resulting movement of a cursor of the remote computer at the second location in response to the remote computer having received the first movement information and utilized the at least one configurable movement parameter; (c) calculating predicted movements utilizing at least two possible values for the at least one configurable movement parameter; and (d) determining which of the at least two possible values provides the predicted movement most closely matching the resulting movement of the cursor.
Abstract:
A delta-sigma converter has coarse and fine ADCs, wherein an integrated error signal is coupled to the coarse ADC whose output drives a DAC to create feedback that achieves loop balance. The coarse ADC provides the most significant bits of the result. The integrated error signal is also applied to a fine ADC whose output bits are not incorporated into the feedback, but which are combined with those of the coarse ADC and the combination applied to a filter that averages the hunting that represents loop balance. A DC feed forward circuit shunts the integrator with a replica of the applied input signal to apply it to the coarse ADC through a summer, allowing its output to be just the integrated error signal without including the applied input. If continuous integration is used, an AC feed forward circuit provides a compensatory voltage that is removed from the integrator output (or alternatively, is added to its input) and that corrects for a frequency dependent error.
Abstract:
A detection apparatus is for a computer to detect the presence or absence of a computer user. The absence of a user can trigger a computer display to power down, while the detected presence of a user can trigger the display to power back up, and, optionally, require a log in. The detection apparatus may operate automatically and thus may provide a reliable way of saving power and/or ensuring security of computer data.
Abstract:
Exercise device using rotating hand pedals against a variable resistance for the purpose of exercising the upper-body on an upper-body spinning cycle and incorporating a seating mechanism providing for placement of the operator's body to permit the conditioning of the upper portions of the operator's body including abdominal muscles, hip flexors, back, arms, wrists and hands by pedaling against a resistance to the accompaniment of music or instruction in a class type setting or at home without instruction. The embodiment of the invention allows for adjustment of the resistance to provide both aerobic and anaerobic exercise providing both muscle development and cardio-vascular conditioning. The embodiment of the invention allows the cranks to be rotated in an opposed or reciprocating position similar to conventional bicycles or the cranks can be rotated instantly and freely to be side by side in tandem or any orientation between opposed or tandem. The embodiment of the invention allows the cranks to be pedaled simultaneously or individually with one crank stationary while the other crank is pedaled. The switching of pedaling from one crank individually to two cranks simultaneously can be performed at the direction of the instructor in a class setting.
Abstract:
The method of determining a focus measure from an image includes detecting one or more edges in the image by processing the image with one or more first order edge detection kernels adapted to reject edge phasing effects. A first measure of the strength of each of the edges, and the contrast of each of the edges may be determined. The method may include normalizing the first measure of the strength of each of the edges by the contrast of each of the edges to obtain a second measure of the strength of each of the edges, and resealing the second measure of the strength of each of the edges. The method may also include selecting one or more of the edges from the image in accordance with the second measure of their strengths, and calculating the focus measure from the second measure of the strengths of the selected edges.
Abstract:
An apparatus for providing electrical power, including an electrically non-conductive generally cube-shaped housing, an electrical power supply operationally connected and positioned in the housing, a first plurality of power outlets electrically connected to power supply for connecting three-prong plugs, a second plurality of power outlets for connecting male USB connectors, and a power cord operationally connected to the power.
Abstract:
Methods and systems for determining the position of an object, such as tracking the position of one or more catheters in a patient's heart cavity are disclosed herein.
Abstract:
Resource constraints for a group of individual application products to be configured for shared resource usage of at least one shared resource within a single operating system instance are analyzed by a resource allocation module. An individual resource allocation for each of the group of individual application products is determined based upon the analyzed resource constraints for the group of individual application products. The determined individual resource allocation for each of the group of individual application products is implemented within the single operating system instance using local inter-product message communication bindings by the single operating system instance.
Abstract:
Resource constraints for a group of individual application products to be configured for shared resource usage of at least one shared resource within a single operating system instance are analyzed by a resource allocation module. An individual resource allocation for each of the group of individual application products is determined based upon the analyzed resource constraints for the group of individual application products. The determined individual resource allocation for each of the group of individual application products is implemented within the single operating system instance using local inter-product message communication bindings by the single operating system instance.