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128results about How to "Extensive collection" patented technology

Ultra wide bandwidth spread-spectrum communications system

An ultra wide bandwidth, high speed, spread spectrum communications system uses short wavelets of electromagnetic energy to transmit information through objects such as walls or earth. The communication system uses baseband codes formed from time shifted and inverted wavelets to encode data on a RF signal. Typical wavelet pulse durations are on the order of 100 to 1000 picoseconds with a bandwidth of approximately 8 GHz to 1 GHz, respectively. The combination of short duration wavelets and encoding techniques are used to spread the signal energy over an ultra wide frequency band such that the energy is not concentrated in any particular narrow band (e.g. VHF: 30-300 MHz or UHF: 300-1000 MHz) and is not detected by conventional narrow band receivers so it does not interfere with those communication systems. The use of pulse codes composed of time shifted and inverted wavelets gives the system according to the present invention has a spatial resolution on the order of 1 foot which is sufficient to minimize the negative effects of multipath interference and permit time domain rake processing.
Owner:NORTH STAR INNOVATIONS

Method of manufacturing large dish reflectors for a solar concentrator apparatus

A method of manufacturing monolithic glass reflectors for concentrating sunlight in a solar energy system is disclosed. The method of manufacturing allows large monolithic glass reflectors to be made from float glass in order to realize significant cost savings on the total system cost for a solar energy system. The method of manufacture includes steps of heating a sheet of float glass positioned over a concave mold until the sheet of glass sags and stretches to conform to the shape of the mold. The edges of the dish-shaped glass are rolled for structural stiffening around the periphery. The dish-shaped glass is then silvered to create a dish-shaped mirror that reflects solar radiation to a focus. The surface of the mold that contacts the float glass preferably has a grooved surface profile comprising a plurality of cusps and concave valleys. This grooved profile minimizes the contact area and marring of the specular glass surface, reduces parasitic heat transfer into the mold and increases mold lifetime. The disclosed method of manufacture is capable of high production rates sufficiently fast to accommodate the output of a conventional float glass production line so that monolithic glass reflectors can be produced as quickly as a float glass production can make sheets of float glass to be used in the process.
Owner:THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA

Rectenna solar energy harvester

A rectenna is a combination of an antenna and a rectifier (diode). Because of limitations in nanotechnology fabrication, it has not been possible to develop rectennas that can operate in the visible frequency range. Current work has gone to producing rectennas that operate in the far infrared (thermal emission) frequency range. To harvest solar energy with rectennas to produce electric power and since rectennas cannot operate at such high frequencies, the present invention provides rectenna configurations to overcome this problem.
Owner:UNIV OF SOUTH FLORIDA

Method and Apparatus of Taking Aerial Surveys

ActiveUS20100283853A1Extensive computationExtensive data collectionImage enhancementImage analysisComputer visionAerial survey
A method of taking an aerial survey maps boundaries of a first image and a second image from a first plane to a second plane to determine boundaries of an output image in the second plane. For a plurality of pixels in the output image, the method determines a corresponding pixel of either the first image or second image in the first plane.
Owner:INTERGRAPH SOFTWARE TECH

Blood sugar test system

InactiveCN101477128ASimplify the acquisition management processEasy to useNetwork topologiesDiagnostic recording/measuringWirelessBlood glucose testing
The invention discloses a blood sugar testing system, which comprises a blood sugar testing module and a communication module, wherein the blood sugar testing module is used for testing blood sugar, and the communication module is used for sending blood sugar value health information tested by the blood sugar testing module to a specified server in a wireless communication mode. An acquiring and managing process of the health information is simplified by utilizing the blood sugar testing system which is convenient for users to use.
Owner:理康互联科技(北京)有限公司

Solar-architectural material and building integrative solar energy utilization

InactiveUS20080209907A1Upgrade cost efficiencyExclude leakage riskSolar heating energySolar heat devicesBuilding materialThermal energy
The present invention provides a kind of solar-architectural materials which receive solar radiation and transfer it into heat energy and at the same time works as building finishing and decoration material, and thereof a system of building integrative solar heat utilization in which comprise a kind of heat-energy-conflux-device via metal matching surface impinging on each other without leakage possibility of liquid as heat transfer medium in the system.
Owner:XIAO WENZHAO +3

Method of manufacturing large dish reflectors for a solar concentrator apparatus

A method of manufacturing monolithic glass reflectors for concentrating sunlight in a solar energy system is disclosed. The method of manufacturing allows large monolithic glass reflectors to be made from float glass in order to realize significant cost savings on the total system cost for a solar energy system. The method of manufacture includes steps of heating a sheet of float glass positioned over a concave mold until the sheet of glass sags and stretches to conform to the shape of the mold. The edges of the dish-shaped glass are rolled for structural stiffening around the periphery. The dish-shaped glass is then silvered to create a dish-shaped mirror that reflects solar radiation to a focus. The surface of the mold that contacts the float glass preferably has a grooved surface profile comprising a plurality of cusps and concave valleys. This grooved profile minimizes the contact area and marring of the specular glass surface, reduces parasitic heat transfer into the mold and increases mold lifetime. The disclosed method of manufacture is capable of high production rates sufficiently fast to accommodate the output of a conventional float glass production line so that monolithic glass reflectors can be produced as quickly as a float glass production can make sheets of float glass to be used in the process.
Owner:THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA

Mountainous region sponge urban three-section rainwater collection, purification and utilization system

The invention discloses a mountainous region sponge urban three-section rainwater collection, purification and utilization system which comprises a rainwater collection system, a rainwater purification system and a rainwater utilization system. The rainwater collection system comprises a plurality of afforesting grooves formed from the mountaintop to the mountainside in sequence, a plurality of sand settling ponds and a plurality of water collection tanks; the rainwater purification system is formed by arranging a plurality of primary purification grooves and a plurality of secondary purification grooves in a ladder shape along a mountain body downwards, and the primary purification grooves are provided with an anti-scouring layer, a soil layer, a coarse sand layer and a purification layer from top to bottom in sequence; the secondary purification grooves are provided with a soil layer and a filter layer from top to bottom in sequence; the rainwater utilization system comprises an upper landscape pond and a lower water storage tank, and a concrete partition plate is arranged between the landscape pond and the water storage tank. The mountain body environment can be afforested and beautified, the good landscape effect is achieved, pollutants in rainwater can be absorbed so as to purify water, and the system is particularly suitable for building a mountainous region sponge city with water resource shortage.
Owner:SICHUAN UNIV

Implementation method of open source software acquisition and searching system

An implementation method of an open source software acquisition and searching system comprises the steps as follows: relational database management software is configured on an enterprise server, so that business-layer codes can access and refresh information in database in the form of objects when an upper application program calls a relational database; an input definition of a user is received, a certain number of open source community sets with known URL (Uniform Resource Locator) address are determined, and open source software home pages in open source communities are captured by crawlers; information, namely open source attributes in the open source software field are extracted from the captured home pages; cross community project information is integrated, an attribute union set is adopted when projects originating from different communities have different attributes, and the dependency relationships among the different projects are saved at the same time; an inverted index is built for the obtained open source attributes; in order to response the user search input or a predefined ranking mechanism, the open source projects that need to be shown are ordered and displayed, so that the acquisition and the searching of the open source software projects can be achieved.
Owner:NAT UNIV OF DEFENSE TECH
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