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Heiberg
Adam Heiberg, Tualatin, OR US
| Patent application number | Description | Published |
|---|---|---|
| 20110055445 | Digital Signal Processing Systems - A signal processing system may include a multiply-accumulate (MAC) unit to generate output data by performing multiply-accumulate operations on first and second input data in response to a stream of MAC instruction words, where the MAC unit is pipelined to enable it to perform a multiply-accumulate operation in response to each MAC instruction word. The system may also include an instruction generator to generate the stream of MAC instruction words by performing loop expansion on a stream of intermediate instruction words, where one intermediate instruction word may comprise a group of fields to set up the MAC unit to execute in response to the one intermediate instruction word. | 03-03-2011 |
| 20110160930 | Power Point Tracking - A local power converter may include a controller to manipulate the operating point of a local power converter to cause the power point tracking feature of a central power converter to operate at a point determined by the controller. In some embodiments, the controller can manipulate the operating point of the local power converter by alternating between at least two modes. In some other embodiments, the controller can manipulate the operating point of the local power converter to provide a substantially constant slope. In some other embodiments, the controller can maintain a substantially constant impedance ratio. In some other embodiments, the controller enables perturbations from the power point tracking feature of the central power converter to reach the power source. | 06-30-2011 |
Christopher J. Heiberg, Sunset Beach, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080251646 | Singularity Escape and Avoidance Using A Virtual Array Rotation - Techniques for providing singularity escape and avoidance are disclosed. In one embodiment, a method for providing control moment gyroscope (CMG) attitude control singularity escape includes calculating a Jacobian A of a set of control equations, calculating a measure of closeness to a singularity, and comparing the calculated closeness to a threshold value, when the calculated closeness is less than or equal to the threshold value, recalculating the Jacobian A. Recalculating may include determining a new direction of virtual misalignment of β and γ, recalculating the Jacobian inputting the new direction of the virtual misalignment, recalculating the measure of closeness to a singularity, and comparing the measure of closeness to the threshold value. Further, the method may include calculating a gimbal rate command if the of closeness is greater than the threshold value and generating a torque from the gimbal rate command to control the attitude of a satellite. | 10-16-2008 |
| 20100023188 | SINGULARITY ESCAPE AND AVOIDANCE USING A VIRTUAL ARRAY ROTATION - Techniques for providing singularity escape and avoidance are disclosed. In one embodiment, a method for providing control moment gyroscope (CMG) attitude control singularity escape includes calculating a Jacobian A of a set of control equations, calculating a measure of closeness to a singularity, and comparing the calculated closeness to a threshold value, when the calculated closeness is less than or equal to the threshold value, recalculating the Jacobian A. Recalculating may include determining a new direction of virtual misalignment of β and γ, recalculating the Jacobian inputting the new direction of the virtual misalignment, recalculating the measure of closeness to a singularity, and comparing the measure of closeness to the threshold value. Further, the method may include calculating a gimbal rate command if the of closeness is greater than the threshold value and generating a torque from the gimbal rate command to control the attitude of a satellite. | 01-28-2010 |
| 20100063653 | SINGULARITY ESCAPE AND AVOIDANCE USING A VIRTUAL ARRAY ROTATION - Techniques for providing singularity escape and avoidance are disclosed. In one embodiment, a method for providing control moment gyroscope (CMG) attitude control singularity escape includes calculating a Jacobian A of a set of control equations, calculating a measure of closeness to a singularity, and comparing the calculated closeness to a threshold value, when the calculated closeness is less than or equal to the threshold value, recalculating the Jacobian A. Recalculating may include determining a new direction of virtual misalignment of β and γ, recalculating the Jacobian inputting the new direction of the virtual misalignment, recalculating the measure of closeness to a singularity, and comparing the measure of closeness to the threshold value. Further, the method may include calculating a gimbal rate command if the of closeness is greater than the threshold value and generating a torque from the gimbal rate command to control the attitude of a satellite. | 03-11-2010 |
Eric Heiberg, Long Valley, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20090007398 | FASTENER ADAPTER - A fastener adapter and fastener strap combination includes a first strap member having first and second ends, an outer surface and an inner surface with hook material; and a second strap member having first and second opposing surfaces of hook material. The second strap member is attached to the inner surface intermediately between the first and second ends of the first strap member. The first surface of the second member and a portion of the inner surface of the first member define a first all-hook opening. The second surface of the second member and a portion of the inner surface of the first member define a second all-hook surface. The combination also includes a continuous fastener strap having first and second end portions, the first end portion frictionally attached to the first all-hook opening and the second end portion frictionally attached to the second all-hook surface. | 01-08-2009 |
| 20110082406 | SAFETY CAST - Safety cast compositions for the prevention of thermal injury are provided basically comprising a curable casting material, a flexible substrate coated or impregnated with the casting material and a thermochromic material. Methods for using the safety cast to prevent cast burns in patients in need of immobilizing a body member are also provided. | 04-07-2011 |