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David Henderson
David Henderson, Clifton Park, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20110075914 | SYSTEM AND METHOD FOR THE QUANTITATIVE ASSESSMENT OF DIGITAL HISTOLOGY IMAGES - The present disclosure concerns a method and system for assessing image quality of sub-images used to form a composite image using an algorithm developed by applying statistical correlation techniques to historical data on features of sub-images which were manually evaluated by experts and using those assessment to make decisions about the further processing of the sub-images which are being assessed. The method and system find particular value in the processing of sub-images generated while there is relative motion between the specimen under examination and the objective lens of a microscope such as when the microscope stage follows a planned traverse in the focal plane and a digital image is created at intervals correlated to the motion of the stage so that a region of interest in the specimen under examination is covered by the sub-images. The further processing decisions include manually examining the sub-images assessed to have unacceptable image quality, reimaging the entire region of interest and recreating specific sub-images. The method and system may also involve overlaying portions of a composite image with an indication that they were drawn from sub-images of unacceptable image quality. | 03-31-2011 |
David Henderson, Indialantic, FL US
| Patent application number | Description | Published |
|---|---|---|
| 20100188850 | LIGHT FIXTURE AND ASSOCIATED LED BOARD AND MONOLITHIC OPTIC - An embodiment of the invention is directed to a light fixture useful for area lighting. The light fixture includes a housing having a base and a top, and a light emitting diode (LED) light emission module disposed within the housing. The light emission module includes a centrally disposed aperture that receives a centrally disposed power lead for powering the light emission module. | 07-29-2010 |
| 20100277067 | DIMMABLE LED LUMINAIRE - A luminaire includes an Edison type electrical base, an optic, and a heat sink disposed between the base and the optic. An LED driver circuit is disposed at least partially within the heat sink, and is disposed in electrical communication with the base. An LED assembly is disposed in thermal communication with a surface of the heat sink, and in electrical communication with the driver circuit, the LED assembly includes an LED. The driver circuit includes circuitry that converts an AC signal at the base to a DC signal and provides the DC signal to the LED assembly, the circuitry includes holding current circuitry that produces a holding current for an electrical dimmer disposed upstream of the base in response to a current to the LED assembly being reduced for light dimming purposes. | 11-04-2010 |
David Henderson, Cambridge, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20100068579 | Systems and methods for fuel cell gas circulation - A fuel cell system has a gas delivery-means that circulates the anode exhaust gas back to the anode compartment of the fuel cell for further reaction. | 03-18-2010 |
David Henderson, Granville, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20100027258 | ILLUMINATION APPARATUS FOR CONDUCTING AND DISSIPATING HEAT FROM A LIGHT SOURCE - An illumination apparatus comprising an optics module wherein a driving circuit may be disposed within the proximal base portion of the optics module. The proximal base portion may further be releasably secured within an independent heat dissipating element. Such an apparatus may be very beneficial in light emitting diode (LED) applications due to its efficient conduction and dissipation of heat away from the LED semiconductor junction. Additionally, a releasable optics module comprising a plurality of LEDs and a driving circuit provides for cost efficient and environmentally friendly replacement of such a component at the end of its lifespan. The heat dissipating element (e.g. heat sink) may continue to be used, while only the optics module need be replaced or serviced as required. Precious environmental resources may thus be conserved and maintenance costs reduced while concurrently extending the lifespan of such an inventive illumination apparatus. | 02-04-2010 |
| 20100038053 | SUSTAINABLE ENDOTHERMIC HEAT STRIPPING METHOD AND APPARATUS - A sustainable system for cooling at least one electronic device, for example a Light Emitting Diode (LED), and preferably a plurality of electronic devices, using at least one heat absorbing material contained within a housing that it is in thermal communication with said electronic devices. Said heat absorbing materials may be present individually or in combinations thereof in order to achieve the desired heat absorption effect; said housing may be comprised of multiple chambers containing heat absorbing materials or combinations thereof. | 02-18-2010 |
David Henderson, Santa Rosa, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090031810 | SYSTEMS AND METHODS FOR CONDUCTING SIMULTANEOUS VIBRATION AND ELECTRICAL TESTING - A mounting pedestal is designed to hold a DUT in position for both electrical testing and vibration testing. The design is such that the pedestal can remain thermally sealed from an environment created within a confined area so as to impart vibration to a DUT positioned within the environmentally protected area, the vibration coming from a vibrator outside the environmentally sealed area. The pedestal, in one embodiment, extends through the base of a DUT holding tray while still preserving the environment within the sealed area. In one embodiment, the pedestal can position the DUT in any of several selected orientations. | 02-05-2009 |
| 20090031816 | TRAY FOR HANDLING DEVICES TO BE TESTED - The problems inherent with connecting a DUT to a test station have been solved by the use of a tray designed to allow a wide variety of different DUTs to be physically connected individually to a test station using a universal test station connector. The tray allows for the association therewith of a personality module which serves to provide the proper physical connections and to electrically condition the test station to the electrical characteristics of the DUT. The tray allows for sealed environmental testing of the DUT without impacting any physical connections between the DUT and the test station. The tray also allows for the DUT to be vibrated from externally applied motion without interfering with either the sealed environment around the DUT and without imparting motion to the physical connection between the DUT and the test station. | 02-05-2009 |
| 20090033338 | SYSTEMS AND METHODS FOR FACILITATING USE OF A UNIVERSAL TEST CONNECTION FOR A PLURALITY OF DIFFERENT DEVICES - A module is used for interfacing between a particular device to be tested (DUT) and a test station having a universal set of connections. The module is adapted for bridging both the physical and electrical differences between connection points available on the DUT and the universal test connections. The module contains information (personality data) unique to the particular DUT and is designed to mount in a tray in which the DUT is positioned. The personality module resides partially within an environmentally controlled area and an area outside of the environmentally controlled area and is adapted to seal the environmentally controlled area so as to maintain testing integrity therein. In one embodiment, the connections between the module and the test station occur outside of the environmentally controlled area. | 02-05-2009 |
David Henderson, Ogden, UT US
| Patent application number | Description | Published |
|---|---|---|
| 20090014989 | INFLATABLE CURTAIN VENTING - Disclosed are embodiments of apparatus, methods, and systems for inflatable curtain venting. In one embodiment, an inflatable curtain airbag is tested using a 50th-percentile dummy. The inflatable curtain airbag comprises a vent opening positioned such that during the crash test, the head of the 50 | 01-15-2009 |