Patent application number | Description | Published |
20080312565 | Cardiopulmonary Resuscitation Sensor - The present invention provides a CPR sensor that includes a thin and substantially flat flexible substrate having one or more sensor arrays, a power source, an output interface and a processor or analog circuit, all of which are disposed on the substantially flat flexible substrate. The substrate can be any shape (e.g., rectangular, circular, a polygon, an irregular shape that is decorative) and made from a polymer, metal film or other suitable material. Note that the substrate can be rigid or semi-flexible instead of flexible. A protective layer may cover the sensor array, the power source, and the processor or analog circuit. Alternatively, a protective covering can be used to encapsulate the device. The one or more sensor arrays measure one or more of the following compressions characteristics: compression depth, compression force, compression frequency and compression acceleration. | 12-18-2008 |
20090098017 | NANOPOROUS MEMBRANE EXCHANGER - The invention is a nanoporous membrane exchanger. | 04-16-2009 |
20100102403 | METHOD AND APPARATUS FOR FABRICATING PIEZORESISTIVE POLYSILICON BY LOW-TEMPERATURE METAL INDUCED CRYSTALLIZATION - The present invention provides a method and apparatus for fabricating piezoresistive polysilicon on a substrate by low-temperature metal induced crystallization by: (1) providing the substrate having a passivation layer; (2) performing, at or near room temperature in a chamber without breaking a vacuum or near-vacuum within the chamber, the steps of: (a) creating a metal layer on the passivation layer, and (b) creating an amorphous silicon layer on the metal layer, wherein the metal layer and the amorphous silicon layer have approximately the same thickness; (3) annealing the substrate, the passivation layer, the metal layer and the amorphous silicon layer at a temperature equal to or less than 600° C. and a period of time equal to or less than three hours to form a doped polysilicon layer below a residual metal layer; and (4) removing the residual metal layer to expose the doped polysilicon layer. | 04-29-2010 |
20100245114 | Thin Flexible Sensor - The present invention provides a sensor ( | 09-30-2010 |
20100320549 | Methods and Apparatuses for Integrated Packaging of Microelectromechanical Devices - Microelectromechanical systems (MEMS) packages, packaged MEMS devices, and methods for making the same are disclosed. The method may include forming a chamber sacrificial layer above an insulating layer that is coupled to a wafer. The method further may include forming a packaging layer above the chamber sacrificial layer. The method additionally may include forming one or more openings through the packaging layer. The method also may include removing the chamber sacrificial layer through the one or more openings. The method may include forming a sealing layer above the packaging layer such that the sealing layer substantially seals the one or more openings to form a hermetic cavity. | 12-23-2010 |
20130260503 | Methods and Apparatuses for Integrated Packaging of Microelectromechanical Devices - Microelectromechanical systems (MEMS) packages, packaged MEMS devices, and methods for making the same are disclosed. The method may include forming a chamber sacrificial layer above an insulating layer that is coupled to a wafer. The method further may include forming a packaging layer above the chamber sacrificial layer. The method additionally may include forming one or more openings through the packaging layer. The method also may include removing the chamber sacrificial layer through the one or more openings. The method may include forming a sealing layer above the packaging layer such that the sealing layer substantially seals the one or more openings to form a hermetic cavity. | 10-03-2013 |
20140091410 | Method and Apparatus for Fabricating Piezoresistive Polysilicon by Low-Temperature Metal Induced Crystallization - The present invention provides a method and apparatus for fabricating piezoresistive polysilicon on a substrate by low-temperature metal induced crystallization by: (1) providing the substrate having a passivation layer; (2) performing, at or near room temperature in a chamber without breaking a vacuum or near-vacuum within the chamber, the steps of: (a) creating a metal layer on the passivation layer, and (b) creating an amorphous silicon layer on the metal layer, wherein the metal layer and the amorphous silicon layer have approximately the same thickness; (3) annealing the substrate, the passivation layer, the metal layer and the amorphous silicon layer at a temperature equal to or less than 600° C. and a period of time equal to or less than three hours to form a doped polysilicon layer below a residual metal layer; and (4) removing the residual metal layer to expose the doped polysilicon layer. | 04-03-2014 |
Patent application number | Description | Published |
20100028766 | THIN FLEXIBLE RECHARGEABLE ELECTROCHEMICAL ENERGY CELL AND METHOD OF FABRICATION - A thin, rechargeable, flexible electrochemical energy cell includes a battery cell, or a capacitor cell, or a battery/capacitor hybrid cell that can be stackable in any number and order. The cell can be based on a powdery mixture of hydrated ruthenium oxide particles or nanoparticles with activated carbon particles or nanoparticles suspended in an electrolyte. The electrolyte may contain ethylene glycol, boric acid, citric acid, ammonium hydroxide, organic acids, phosphoric acid, and/or sulphuric acid. An anode electrode may be formed with a thin layer of oxidizable metal (Zn, Al, or Pb). The cathode may be formed with a graphite backing foil. The materials used in the energy cell can be explosive-free, nonflammable, nontoxic, and environmentally safe, and the energy cell may have a voltage at or below 1.25V for recharging. The thickness of the cell structure can be in the range of 0.5 mm-1 mm, or lower. | 02-04-2010 |
20110101789 | RF POWER HARVESTING CIRCUIT - Provided is an RF power harvesting circuit with improved sensitivity to RF energy. The RF power harvesting device includes an inductor, a first capacitor connected to the inductor, a first MOSFET connected to a first node, and a second MOSFET connected to the first node. The inductor or the first capacitor are connected to the first node. | 05-05-2011 |
20130089769 | THIN FLEXIBLE ELECTROCHEMICAL ENERGY CELL - An electrochemical energy cell has a galvanic cell including an anode electrode unit, a cathode electrode unit, an electrolyte body between the anode and cathode electrode units and contacting both the anode and cathode electrode units, and a separator layer including the electrolyte body and placed within the cell to contact both the anode and cathode electrode units to bring the anode and cathode electrode units in contact with the electrolyte body. The cathode electrode unit includes a cathode material including a powder mixture of a powder of hydrated ruthenium oxide and one or more additives. The anode electrode unit includes a structure formed of an oxidizable metal, and the separator layer includes a material that is porous to ions in liquid and is electrically non-conductive. A flexible electrochemical cell can be configured for a reduction-oxidation reaction to generate power at a surface of the electrode unit(s). | 04-11-2013 |
20130108935 | ZINC-WATER BATTERY AND SYSTEM | 05-02-2013 |
Patent application number | Description | Published |
20110316506 | Dual Loop Voltage Regulator with Bias Voltage Capacitor - A voltage regulator includes a regulator input connected to a reference voltage; a regulator output that outputs a regulated voltage to an electrical load; a first loop, the first loop configured to receive the reference voltage, the first loop outputting a bias voltage; a second loop, the second loop configured to receive the bias voltage as an input; and a bias voltage capacitor connected to a node between the first loop and the second loop. | 12-29-2011 |
20120153909 | HYBRID FAST-SLOW PASSGATE CONTROL METHODS FOR VOLTAGE REGULATORS EMPLOYING HIGH SPEED COMPARATORS - Voltage regulator circuits and methods implementing hybrid fast-slow passgate control circuitry are provided to minimize the ripple amplitude of a regulated voltage output. In one aspect, a voltage regulator circuit includes a comparator, a first passgate device, a second passgate device, and a bandwidth limiting control circuit. The comparator compares a reference voltage to a regulated voltage at an output node of the voltage regulator circuit and generates a first control signal on a first gate control path based on a result of the comparing. The first and second passgate devices are connected to the output node of the regulator circuit. The first passgate device is controlled in a bang-bang mode of operation by the first control signal to supply current to the output node. The bandwidth limiting control circuit has an input connected to the first gate control path and an output connected to the second passgate device. The bandwidth limiting control circuit generates a second control signal based on the first control signal, wherein the second control signal is a slew rate limited version of the first control signal, and wherein the second passgate is controlled by the second control signal to supply current to the output node. | 06-21-2012 |
20120153910 | DUAL-LOOP VOLTAGE REGULATOR ARCHITECTURE WITH HIGH DC ACCURACY AND FAST RESPONSE TIME - Dual-loop voltage regulator circuits and methods in which a dual-loop voltage regulation framework is implemented with a first inner loop having a bang-bang voltage regulator to achieve nearly instantaneous response time, and a second outer loop, which is slower in operating speed than the first inner loop, to controllably adjust a trip point of the bang-bang voltage regulator to achieve high DC accuracy. | 06-21-2012 |
20130208779 | FEED-FORWARD EQUALIZER ARCHITECTURES - Circuits and methods are provided for efficient feed-forward equalization when sample-and-hold circuitry is employed to generate n time-delayed versions of an input data signal to be equalized. To equalize the input data signal, m data signals are input to m feed-forward equalization (FFE) taps of a current-integrating summer circuit, wherein each of the m data signals corresponds to one of the n time-delayed versions of the input data signal. A capacitance is precharged to a precharge level during a reset period of the current-integrating summer circuit. An output current is generated by each of the m FFE taps during an integration period of the current-integrating summer circuit, wherein the output currents from the m FFE taps collectively charge or discharge the capacitance during the integration period. A gating control signal is applied to an FFE tap during the integration period to disable the FFE tap during a portion of the integration period in which the data signal input to the FFE tap is invalid. | 08-15-2013 |
20130336378 | FEED-FORWARD EQUALIZER ARCHITECTURES - Circuits and methods are provided for efficient feed-forward equalization when sample-and-hold circuitry is employed to generate n time-delayed versions of an input data signal to be equalized. To equalize the input data signal, m data signals are input to m feed-forward equalization (FFE) taps of a current-integrating summer circuit, wherein each of the m data signals corresponds to one of the n time-delayed versions of the input data signal. A capacitance is precharged to a precharge level during a reset period of the current-integrating summer circuit. An output current is generated by each of the m FFE taps during an integration period of the current-integrating summer circuit, wherein the output currents from the m FFE taps collectively charge or discharge the capacitance during the integration period. A gating control signal is applied to an FFE tap during the integration period to disable the FFE tap during a portion of the integration period in which the data signal input to the FFE tap is invalid. | 12-19-2013 |
20150054574 | DIGITAL CONTROL SYSTEM FOR DISTRIBUTED VOLTAGE REGULATORS - A system and method to regulate voltage on a chip are described. The system includes a central controller to output a digital code based on a voltage measurement from a sense point on a power grid of the chip. The system also includes a plurality of micro-regulators, each of the plurality of micro-regulators outputting a respective voltage to the power grid based on the digital code. | 02-26-2015 |
20150054575 | DIGITAL CONTROL SYSTEM FOR DISTRIBUTED VOLTAGE REGULATORS - A system and method to regulate voltage on a chip are described. The system includes a central controller to output a digital code based on a voltage measurement from a sense point on a power grid of the chip. The system also includes a plurality of micro-regulators, each of the plurality of micro-regulators outputting a respective voltage to the power grid based on the digital code. | 02-26-2015 |
20150061744 | PASSGATE STRENGTH CALIBRATION TECHNIQUES FOR VOLTAGE REGULATORS - Systems and methods are provided to regulate a supply voltage of a load circuit. For example, a system includes a voltage regulator circuit that includes a passgate device. The system includes a passgate strength calibration control module which is configured to (i) obtain information which specifies operating conditions of the voltage regulator circuit, (ii) access entries of one or more look-up tables using the obtained information, (iii) use information within the accessed entries to determine a maximum load current that could be demanded by the load circuit under the operating conditions specified by the obtained information, and to predict a passgate device width which is sufficient to supply the determined maximum load current, and (iv) set an active width of the passgate device according to the predicted passgate device width. | 03-05-2015 |
Patent application number | Description | Published |
20140294905 | ANTIMICROBIAL TEXTILES - This invention is about textiles which are equipped with antifungal, anticandidal and antibacterial properties. The aim of the invention is to attain antimicrobial textiles which reduces the incidence of infections communicated or spread by textiles, reduces the loss of extra cost and energy to ensure hygiene and strengthens the hygienic condition of disposable textiles. Textiles can be equipped with antimicrobial properties in three ways: In the first method, sodium borate is dissolved in methanol and is then fixed to the fabric. In the second method, sodium borate is dissolved in water and is then sprayed onto the fabric. In the third method, sodium borate dissolved in water and mixed with textile dye and applied as a dye. Antimicrobial properties of sodium borate are tested on 38 bacterial species, 9 yeasts and 1 1 fungi isolates based on disc diffusion assay. | 10-02-2014 |
20150030532 | ANTIMICROBIAL MATERIAL COMPRISING A METAL ION CHARGED ON SYNTHESIZED ZEOLITE - The present invention relates to development of paint, plaster, cement and plastic construction materials containing silver, zinc and copper metal ion-charged zeolite ( 1/10 w/w). The new construction materials are antimicrobial and prevent microorganism growth and reproduction of fungi, yeasts and bacteria. The product, made from construction materials containing metallic ion-exchanged zeolite, provides hygiene by preventing microbial contamination in areas and surfaces for a long time. Furthermore, lifespan of the materials produced with this technology is longer since they will be protected from biological deterioration, corrosion and decays. | 01-29-2015 |