Abstract: Approaches presented herein provide for the generation and maintenance of a minimally-sized octree (or other spatial representation) for an arbitrary or dynamic dataset. An octree representation allows for efficient real-time querying of dynamic content, where such a spatial database can scale from a single machine to multiple machines. Objects in a scene can be stored to the spatial database using a set of spatial primitives. When a first object (or set of objects) in a scene is determined, an initial octree and root can be determined based at least in part upon the size and location of the object(s). An additional object may be added that is outside the existing root of the octree. A new bounding volume is generated that surrounds this new object, and the bounding volume is grown in alternating directions until the bounding volume also includes the other objects in the environment, and this new volume boundary becomes the new root of an updated octree for this environment.

Abstract: A roof scaling system method of manufacture and method of application comprising three parts: a caulk gap filler, a mastic, and a top coating. All three components combine to create a singular scaled membrane when applied to a roof surface. The roof scaling system utilizes inert polyethylene fibers in a liquid silicone polymer.

Abstract: Approaches presented herein provide for the generation and maintenance of a minimally-sized octree (or other spatial representation) for an arbitrary or dynamic dataset. An octree representation allows for efficient real-time querying of dynamic content, where such a spatial database can scale from a single machine to multiple machines. Objects in a scene can be stored to the spatial database using a set of spatial primitives. When a first object (or set of objects) in a scene is determined, an initial octree and root can be determined based at least in part upon the size and location of the object(s). An additional object may be added that is outside the existing root of the octree. A new bounding volume is generated that surrounds this new object, and the bounding volume is grown in alternating directions until the bounding volume also includes the other objects in the environment, and this new volume boundary becomes the new root of an updated octree for this environment.

Abstract: A roof sealing system method of manufacture and method of application comprising three parts: a caulk gap filler, a mastic, and a top coating. All three components combine to create a singular sealed membrane when applied to a roof surface. The roof sealing system utilizes inert polyethylene fibers in a liquid silicone polymer.

Abstract: A hitch mountable workout apparatus for providing a portable sturdy workout apparatus includes a hitch mount having a hitch end and a shaft end. The hitch end selectively engages a trailer hitch. A vertical main shaft has a shaft back side attached to the shaft end of the hitch mount, a shaft front side, a shaft left side, a shaft right side, a shaft top end, and a shaft bottom end. A bottom support has a support tube slidably engaged within the shaft bottom end and a support foot coupled to the support tube. The bottom support is adjustable to rest the support foot on the ground while the hitch mount is engaged with the trailer hitch. A pull-up bar has pull-up tube slidably engaged within the shaft top end, a cantilever coupled to the pull-up tube, and a crossbar coupled to the pull-up tube.

Abstract: A hitch mountable workout apparatus for providing a portable sturdy workout apparatus includes a hitch mount having a hitch end and a shaft end. The hitch end selectively engages a trailer hitch. A vertical main shaft has a shaft back side attached to the shaft end of the hitch mount, a shaft front side, a shaft left side, a shaft right side, a shaft top end, and a shaft bottom end. A bottom support has a support tube slidably engaged within the shaft bottom end and a support foot coupled to the support tube. The bottom support is adjustable to rest the support foot on the ground while the hitch mount is engaged with the trailer hitch. A pull-up bar has pull-up tube slidably engaged within the shaft top end, a cantilever coupled to the pull-up tube, and a crossbar coupled to the pull-up tube.

Abstract: A roof sealing system method of manufacture and method of application comprising three parts: a caulk gap filler, a mastic, and a top coating. All three components combine to create a singular sealed membrane when applied to a roof surface. The roof sealing system utilizes inert polyethylene fibers in a liquid silicone polymer.

Abstract: A roof sealing system method of manufacture and method of application comprising three parts: a caulk gap filler, a mastic, and a top coating. All three components combine to create a singular sealed membrane when applied to a roof surface. The roof sealing system utilizes inert polyethylene fibers in a liquid silicone polymer.

Abstract: A system of harvesting sea creatures from a trench holding the sea creatures in seawater, including a trench, an injection well, and a harvesting apparatus that extracts the sea creatures from the trench. The trench includes a gate at one end of the trench. The gate insertable into an opening at the end of the trench to prevent seawater from entering or exiting the trench and removable from the opening to allow the seawater to enter or exit the trench. The injection well is positioned external to the trench and can receive the seawater discharged from the trench. The harvesting apparatus includes a conveyor that inclines. The conveyor includes a conveyor belt and a wedge at one end of the conveyor that contacts the bottom floor of the trench when the conveyor is inclined.

Abstract: Approaches for controlling dwell time in the ignition system of an internal combustion engine are provided. In one example, a method may include adjusting dwell based on engine operating conditions and further adjusting dwell in a manner proportional to existent spark plug conditions. By constantly assessing spark plug condition during operating of the internal combustion engine, premature wear of the spark plug may be prevented leading to an extension in the service life of spark plug and other ignition system components.

Abstract: The present disclosure relates to sensor systems for electronic ophthalmic devices. In certain embodiments, the sensor systems may comprise a sensor such as an adjustable resistor configured in series with an eye of a user of the electronic ophthalmic device. The sensor systems may comprise a gain stage configured to amplify a signal indicative of a difference between a voltage drop across the eye and the adjustable resistor. The sensor systems may comprise an integrator configured to integrate the amplified signal. A resistance value of the adjustable resistor is configured to cancel a DC component of a resistance of the eye when an electrical current is caused to flow through the eye and the adjustable resistor. As such, the configured resistance value of the adjustable resistor is indicative of an impedance of the eye.

Abstract: An extendable umbrella is described herein which has a shaft, where the outside of the shaft serves as a guide for an umbrella runner which allows for the opening and closing of a canopy and the inside of the shaft contains multiple lockable adjustable height telescoping tubes that can be extended from the shaft and all the way to the ground if desired to provide support to the umbrella while it is being held by a person in a standing position.

Abstract: Approaches for controlling dwell time in the ignition system of an internal combustion engine are provided. In one example, a method may include adjusting dwell based on engine operating conditions and further adjusting dwell in a manner proportional to existent spark plug conditions. By constantly assessing spark plug condition during operating of the internal combustion engine, premature wear of the spark plug may be prevented leading to an extension in the service life of spark plug and other ignition system components.

Abstract: A pavement marking tape has raised, irregular polygonal relief features with retroreflective elements covering a portion of the surface of the tape. The form of the relief features minimizes shadowing effects. Raised relief features are shaped to increase the visible number of vertical faces and edges of the relief features, which are the most reflective structures, and are oriented toward incident light from an approaching observer to maximize retroreflectivity.

Abstract: A system of harvesting sea creatures from a trench holding the sea creatures in seawater, including a trench and a harvesting apparatus that extracts the sea creatures from the trench. The trench includes a gate at one end of the trench. The gate insertable into an opening at the end of the trench to prevent seawater from entering or exiting the trench and removable from the opening to allow the seawater to enter or exit the trench. The harvesting apparatus includes a conveyor that inclines. The conveyor includes a conveyor belt and a wedge at one end of the conveyor that contacts the bottom floor of the trench when the conveyor is inclined. The wedge directs the sea creatures onto the conveyor so that the sea creatures are conveyed by the conveyor belt out of the trench.

Abstract: A system controller for an ophthalmic lens comprising an electronic system which actuates a variable-focus optic is disclosed herein. The system controller is part of an electronic system incorporated into the ophthalmic lens. The electronic system includes one or more batteries or other power sources, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and lens driver circuitry. The controller including multiple state machines configured as digital logic gates.

Abstract: The present disclosure relates to sensor systems for electronic ophthalmic devices. In certain embodiments, the sensor systems may comprise a sensor such as an adjustable resistor configured in series with an eye of a user of the electronic ophthalmic device. The sensor systems may comprise a gain stage configured to amplify a signal indicative of a difference between a voltage drop across the eye and the adjustable resistor. The sensor systems may comprise an integrator configured to integrate the amplified signal. A resistance value of the adjustable resistor is configured to cancel a DC component of a resistance of the eye when an electrical current is caused to flow through the eye and the adjustable resistor. As such, the configured resistance value of the adjustable resistor is indicative of an impedance of the eye.

Abstract: A system controller for an ophthalmic lens comprising an electronic system which actuates a variable-focus optic is disclosed herein. The system controller is part of an electronic system incorporated into the ophthalmic lens. The electronic system includes one or more batteries or other power sources, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and lens driver circuitry. The controller including multiple state machines configured as digital logic gates.

Abstract: An anti-aliasing photodetector system for a powered ophthalmic device, such as a contact lens, may be utilized for any number of functions. The anti-aliasing photodetector system converts current from an array of photodetectors into a voltage for use in other aspects of the powered ophthalmic device. The anti-aliasing photodetector system comprises a photodiode array including a plurality of individual photodiodes, an integrate-and-hold circuit, including a capacitor and switch to convert current to voltage, and an analog-to-digital converter. The anti-aliasing photodetector system provides for low power consumption, a wide dynamic range, noise rejection, and is capable of detecting incident ambient visible light as well as incident infrared light.

Abstract: An anti-aliasing photodetector system for a powered ophthalmic device, such as a contact lens, may be utilized for any number of functions. The anti-aliasing photodetector system converts current from an array of photodetectors into a voltage for use in other aspects of the powered ophthalmic device. The anti-aliasing photodetector system comprises a photodiode array including a plurality of individual photodiodes, an integrate-and-hold circuit, including a capacitor and switch to convert current to voltage, and an analog-to-digital converter. The anti-aliasing photodetector system provides for low power consumption, a wide dynamic range, noise rejection, and is capable of detecting incident ambient visible light as well as incident infrared light.