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Hamdan, US
Fadi A. Hamdan, Raleigh, NC US
| Patent application number | Description | Published |
|---|---|---|
| 20120065955 | Modeling Output Delay of a Clocked Storage Element(s) - Methods, apparatuses, systems, and computer-readable mediums for modeling output delay of a clocked storage element(s) are disclosed. An output delay model is employed that includes variations in the output delays for the clocked storage element over an operating range of the clocked storage element, including during transitions from transparent operation to non-transparent operation, and vice versa. Errors in the model output delay are reduced or avoided as a result. In one embodiment, the model output delay is determined for the clocked storage element as a function of the differential timing between the arrival time of a clock signal and input data to the clocked storage element. The differential timing allows determination of a model output delay from a plurality of model output delays representing a model output delay curve for the clocked storage element. Time borrowing can also be modeled automatically without the need for a second output delay model. | 03-15-2012 |
Fadi Adel Hamdan, Raleigh, NC US
| Patent application number | Description | Published |
|---|---|---|
| 20090015321 | Circuit having a Local Power Block for Leakage Reduction - A circuit having a local power block for leakage reduction is disclosed. The circuit has a first portion and a second portion. The first portion is configured to operate at a substantially greater operating frequency than the operating frequency of the second portion. The second portion has a local power block configured to decouple the second portion if the second portion is inactive to reduce leakage current associated with the second portion without sacrificing performance of the first portion. | 01-15-2009 |
| 20100019815 | Circuits and Methods Employing a Local Power Block for Leakage Reduction - A circuit having a local power block for leakage reduction is disclosed. The circuit has a first portion and a second portion. The first portion is configured to operate at a substantially greater operating frequency than the operating frequency of the second portion. The second portion has a local power block configured to decouple the second portion if the second portion is inactive to reduce leakage current associated with the second portion without sacrificing performance of the first portion. | 01-28-2010 |
Fadi Adel Hamdan, Austin, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20120112813 | Latch Circuits with Synchronous Data Loading and Self-Timed Asynchronous Data Capture - A latch integrated circuit has synchronous data loading and self-timed asynchronous data capture characteristics. The integrated circuit may include a latch, a pulse generator and a comparator. The latch can be responsive to a data signal and a write enable signal. The pulse generator may be configured to generate the write enable signal as a pulse. This pulse may have a leading edge synchronized with a first edge of a clock signal and a self-timed trailing edge synchronized with an edge of a comparison signal. The comparator may be configured to generate the comparison signal in response to comparing logic levels of at least two nodes within the integrated circuit. | 05-10-2012 |
Mahmoud N. Hamdan, Pleasant Prairie, WI US
| Patent application number | Description | Published |
|---|---|---|
| 20100109879 | Patient Monitoring System and Method - A unitary patient monitoring system ( | 05-06-2010 |
Marv M. Hamdan, North Olmsted, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20100111707 | ROBUST PID CONTROL FOR BLDC MOTOR CONTROLLER - When controlling an air compressor ( | 05-06-2010 |
Mohamed Hussein Hamdan, Salt Lake City, UT US
| Patent application number | Description | Published |
|---|---|---|
| 20100217342 | METHODS AND SYSTEMS FOR TREATING CARDIAC ARRHYTHMIAS - The disclosure includes methods and systems for treating cardiac arrhythmias. Some methods for treating an abnormal heart rhythm include determining a change in a sinus node cycle length of a heart of a patient between a time prior to the abnormal heart rhythm and a time during the abnormal heart rhythm; when the change is within a first range, delivering a first therapy to the patient for treating the abnormal heart rhythm; and when the change is within a second range, delivering a second therapy to the patient for treating the abnormal heart rhythm, wherein the first therapy is different from the second therapy. In some embodiments, the first therapy may include shock therapy and the second therapy may include anti-tachycardia pacing. | 08-26-2010 |
| 20100217343 | METHODS AND SYSTEMS FOR TREATING VENTRICULAR ARRHYTHMIAS - The disclosure includes methods and systems for treating ventricular arrhythmias. Embodiments include an implantable cardiac device or system including a determining module that determines a value of a parameter indicative of a rate of an intrinsic pacemaker of a heart of a patient experiencing fast ventricular arrhythmia (FVA) and a delivery module, programmed to deliver therapy for ventricular arrhythmias to a patient. Some methods include determining a value of a parameter indicative of a rate of an intrinsic pacemaker of a heart of a patient experiencing an FVA; if the value indicates the rate is about equal to or higher than a threshold, delivering a first therapy to the patient for terminating the FVA, and if the value indicates the rate is lower than the threshold, delivering a second therapy, different from the first therapy, to the patient for terminating the FVA. | 08-26-2010 |
Monjid Hamdan, Worcester, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20080282653 | System for modifying the atmosphere within an enclosed space and incubator system including the same - System for modifying the chemical composition of atmosphere within an enclosed space and incubator system including such a system. The concentration of oxygen within the enclosed space may be either increased or decreased using an electrochemical device. The concentration of carbon dioxide within the enclosed space may be increased using an electrochemical or chemical device. As necessary, purging of the system with ambient air can be a part of the process of controlling the chemical composition of the atmosphere. The present invention obviates the need to use pressurized gas cylinders to supply atmospheric gases to the enclosed space. | 11-20-2008 |
| 20090169952 | Direct organic fuel cell proton exchange membrane and method of manufacturing the same - A proton exchange membrane well-suited for use in a direct methanol fuel cell. According to one embodiment, the proton exchange membrane is prepared by a process comprising the steps of (a) providing a perfluorocarbon membrane, the perfluorocarbon membrane being non-permeable to water; (b) imbibing the perfluorocarbon membrane with a solution containing a styrene monomer, a divinyl benzene cross-linker, and a benzoyl peroxide activator; (c) heating the imbibed membrane to yield a cross-linked polymer within the membrane; (d) repeating the combination of steps (b) and (c) at least once; and (e) then, sulfonating the cross-linked polymer. According to another embodiment, the membrane is irradiated prior to the imbibing step, thereby rendering the membrane receptive to imbibing, polymerization, crosslinking, and grafting and obviating the need for more than one cycle of steps (b) and (c), as well as permitting step (c) to be performed at a lower temperature. | 07-02-2009 |
| 20110020716 | FUEL CELL SYSTEM INCLUDING GAS RECYCLING AND PRESSURIZING ASSEMBLY - A fuel cell system including a gas recycling and re-pressurizing assembly. In one embodiment, the fuel cell system includes a fuel cell stack, the stack having an oxygen outlet and an oxygen inlet. The fuel cell system additionally includes two gas/water separator tanks, each of the tanks containing a quantity of water and a quantity of oxygen gas. Both tanks are capable of being fluidly connected to either the oxygen inlet or the oxygen outlet of the fuel cell stack. In addition, the two tanks are connected to one another so that water may be transferred back and forth between the two tanks. The system also includes a pump for transferring water back and forth between the tanks. In use, water is pumped from one of the tanks to the other until all of the oxygen gas present within the water-receiving tank is forced out of that tank and is conducted back to the oxygen inlet of the fuel cell stack. Once all of the oxygen gas has been forced out of the water-receiving tank, all of the water that had been present in the water-receiving tank is pumped from that tank to the other tank to expel all of the oxygen that is present in the second tank. As water is pumped out of a tank, the tank receives oxygen from the oxygen outlet of the fuel cell stack. Consequently, this process of moving water back and forth between the tanks to displace the oxygen gas present within the tanks is repeated indefinitely to recycle the oxygen back to the fuel cell stack. | 01-27-2011 |
| 20110266142 | Unitized electrolyzer apparatus - A unitized electrolyzer apparatus for generating hydrogen gas at high pressure. According to one embodiment, the apparatus includes a pressure-containment vessel, a water electrolyzer stack, and a water supply. The water electrolyzer stack is mounted on or in the vessel and is used to generate hydrogen gas for containment in the vessel at high pressure. The water supply is contained within the vessel, the water supply being fluidly coupled to the water electrolyzer stack to provide a cathode feeding of water to the water electrolyzer stack. | 11-03-2011 |