Class / Patent application number | Description | Number of patent applications / Date published |
324692000 | With living organism condition determination using conductivity effects | 50 |
20080252304 | System for Electrical Impedance Tomography and Method Thereof - A system for electrical impedance tomography and method thereof are disclosed, by which electrical characteristics within a measurement target can be precisely detected. The present invention includes the steps of injection a current to a measurement target via at least one electrode pair selected form a plurality of electrodes ( | 10-16-2008 |
20090134887 | CONTACT SENSOR - A contact sensor is disclosed. The contact sensor includes a main body and at least one conductor. At least one end of the conductor is disposed on the main body and a contact surface is on one side of the conductor for contact the body surface. The surface of the conductor is in the shape of arc. By the contact surface of the conductor, the contact sensor contacts the human body easily without tangling hair. Moreover, there is not need for the present invention to apply any conductive gel on the body surface so that the measurement of physiological signals is easily and conveniently. | 05-28-2009 |
20090153153 | Multiaperture sample positioning and analysis system - Systems for positioning and/or analyzing samples such as cells, vesicles, cellular organelles, and fragments, derivatives, and mixtures thereof, for electrical and/or optical analysis, especially relating to the presence and/or activity of ion channels. | 06-18-2009 |
20090278555 | APPARATUS FOR EXAMINING OR MONITORING PLANTS - An apparatus ( | 11-12-2009 |
20090309617 | Biosensor antibody functional mapping - Disclosed is a system and method for measuring aspects of antibody function in live-cell systems as defined herein. The system and method also provide a method to measure prophylaxis or remedial aspects of antibody therapeutic candidates in a live-cell or a live-cell model. | 12-17-2009 |
20090309618 | Real Time Electronic Cell Sensing System and Applications For Cytotoxicity Profiling and Compound Assays - The present invention includes devices, systems, and methods for assaying cells using cell-substrate impedance monitoring. In one aspect, the invention provides cell-substrate impedance monitoring devices that comprise electrode arrays on a nonconducting substrate, in which each of the arrays has an approximately uniform electrode resistance across the entire array. In another aspect, the invention provides cell-substrate monitoring systems comprising one or more cell-substrate monitoring devices comprising multiple wells each having an electrode array, an impedance analyzer, a device station that connects arrays of individual wells to the impedance analyzer, and software for controlling the device station and impedance analyzer. In another aspect, the invention provides cellular assays that use impedance monitoring to detect changes in cell behavior or state. The methods can be used to test the effects of compounds on cells, such as in cytotoxicity assays. Methods of cytotoxicity profiling of compounds are also provided. | 12-17-2009 |
20090322357 | Method and System for Monitoring Growth Characteristics - A system monitors growth characteristics of a plant having a root buried in a prescribed volume of ground using a plurality of electrodes inserted into the ground at a known spacing relative to one another in proximity to the root or root-like structure. When electrical current is applied to some of the electrodes, electrical potential is measured at other ones of the electrodes to construct a representation of electrical impedance across the prescribed volume locating the root or root-like structure. Growth characteristics of the soil and the plant, for example root size, root shape, soil moisture content, and the like, can be identified by locating variations of the electrical impedance. | 12-31-2009 |
20100019782 | CELLULAR POTENTIAL MEASUREMENT CONTAINER - The present invention provides a cellular potential measurement container that can measure a cellular potential with high accuracy while suppressing noise even when the number of the cells to be subjected to the measurement is increased. The cellular potential measurement container includes a first solution reservoir | 01-28-2010 |
20100026323 | WAVEGUIDE GRATING STRUCTURE AND OPTICAL MEASUREMENT ARRANGEMENT - The present invention describes (bio)chemo-functional waveguide grating structures consisting of at least one (bio)chemo-functional waveguide grating structure unit or at least one (bio)chemo-functional sensor location with beam guidance permitting light beam separation, as well as detection methods for parallel analysis which are marking-free or based on marking. | 02-04-2010 |
20100079156 | Method and means for connecting a large number of electrodes to a measuring device - An improved electrode for measurement of neuron electrical activity where the number of measurement points is much larger than offered by existing devices. We disclose a method to select a subset of available measuring electrodes, herein called pads, on the surface of the device of our invention, herein called picafina. Besides selecting a particular subset of electrodes, or pads, to use in a particular case, our invention teaches methods and means to keep the selection for a predetermined length of time, or for an indefinite length of time, both under control of the researcher or the neurosurgeon. Selecting a different measuring pad, or a combination of pads, is equivalent of making measurement at a different location, or on a nearby neuron. The invention also discloses method and means to make several parallel measurements, in which case correlations can be made between the firing of different neurons. | 04-01-2010 |
20100097080 | CONTACT SENSOR UNIT, ELECTRONIC DEVICE, AND METHOD FOR PRODUCING A CONTACT SENSOR UNIT - A contact sensor unit includes: a flexible substrate having a conductive pattern; a sensor element having a detecting surface for detecting a fingerprint of a test subject, the sensor element having a terminal electrically connected to the conductive pattern, and the sensor element mounted on the flexible substrate to be covered with the flexible substrate; and a reinforcing member fixed on the flexible substrate and surrounding the sensor element. | 04-22-2010 |
20100097081 | Volumetric Induction Phase Shift Detection System for Determining Tissue Water Content Properties - A method of determining the condition of a bulk tissue sample, by: positioning a bulk tissue sample between a pair of induction coils (or antennae); passing a spectrum of alternating current (or voltage) through a first of the induction coils (or antennae); measuring spectrum of alternating current (or voltage) produced in the second of the induction coils (or antennae); and comparing the phase shift between the spectrum of alternating currents (or voltages) in the first and second induction coils (or antennae), thereby determining the condition of the bulk tissue sample. An apparatus for determining the condition of a bulk tissue sample, having: a first induction coil (or antenna); a second induction coil (or antenna); an alternating current power supply connected to the first induction coil (or antenna), the alternating current power supply configured to generate a spectrum of currents (or voltage) in the first induction coil (or antenna); and a measurement system connected to the second induction coil (or antenna), wherein the measurement system is configured to measure a phase shift difference in the spectrum of currents (or voltages) between the first and second induction coils (or antennae) when the first and second induction coils (or antennae) are positioned on opposite sides of a tissue sample. | 04-22-2010 |
20100102834 | Sensor switch for sensing human body contact - This invention is a sensor switch capable of sensing the contact by human body, comprising a contact conductor, issuing a signal once a human body touches it; a frequency generator, for the receiving of the signal issued by the contact conductor, converting the signal into a preset frequency to output; and a detecting circuit, for the receiving of the signal issued by the frequency generator, determining if the output frequency of the frequency generator is changed and issuing an electric signal subject to the frequency that is detected. Accordingly, once a human body gets in contact with the contact conductor, the detecting circuit will issue an electric signal to form a sensor switch. | 04-29-2010 |
20100141280 | BIOSENSOR READER AND BIOSENSOR READER SYSTEM - A biosensor reader and a biosensor reader system are provided. The biosensor reader has a field-effect transistor (FET) biosensor attached thereto, and the FET biosensor includes between electrodes a probe channel to which probe materials are immobilized. The biosensor reader analyzes an electrical conductivity change of the probe channel caused by the binding between the probe material and a target material contained in an analysis solution. The biosensor reader includes a measurement module and an output module. The measurement module connects the probe channel electrically to a reference resistance with a fixed resistance value by the attachment of the FET biosensor, measures a reference voltage drop across the reference resistance and a channel voltage drop across the probe channel, and analyzes an electrical conductivity change of the probe channel from the reference voltage drop and the channel voltage drop. The output module outputs the analysis result of the target material according to the electrical conductivity change. | 06-10-2010 |
20100171516 | APPARATUS FOR MEASURING VARIATIONS OF EXTRA-CELLULAR MEMBRANE POTENTIAL WITH MICROELECTRODES - An apparatus includes a substrate plate ( | 07-08-2010 |
20100182021 | DETERMINATION OF THE SAFETY OF FOODSTUFFS FOR CONSUMPTION - A method of determining and monitoring the safety of a foodstuff by subjecting the foodstuff to bioelectrical impedance analysis including measurement and calculation of values of resistance, reactance, impedance, capacitance, and phase angle of the foodstuff, and then tracking the values over time to illustrate freshness, palatability and safety of the foodstuff, and ascertaining difference in rate of change from established averages of freshness and palatability to show possible contamination of the foodstuff. | 07-22-2010 |
20100231242 | ELECTRONIC SENSING OF BIOLOGICAL AND CHEMICAL AGENTS USING FUNCTIONALIZED NANOSTRUCTURES - This invention provides for an apparatus and a method for detecting the presence of pathogenic agents with sensors containing functionalized nanostructures integrated into circuits on silicon chips. The nanostructures are functionalized with molecular transducers that recognize and bind targeted analytes which are diagnostic of the pathogenic agent of interest. The molecular transducer includes a receptor portion, which binds the analyte, and an anchor portion that attaches to the nanostructure. Upon binding of the analyte, a change in molecular configuration represented by the newly formed receptor-analyte complex creates a force that is transmitted to the nanostructure via the anchor portion of the transducer. The effect of the force transmitted to the nanostructure is to alter its conductivity. The change in conductivity of the nanotube thus represents a signal that indicates the presence of the pathogenic agent of interest. | 09-16-2010 |
20100244862 | Analysis Tool - The present invention relates to an analysis tool including a reagent portion and electrodes. The electrodes include a porous conductive portion where the reagent portion is formed. The porous conductive section is formed by, for instance, coating at least a part of a surface and an inner surface of a porous body with a conductive film. The porous body is, for instance, an insulating fiber mesh cloth. Preferably, the electrodes are formed in a sheet shape. | 09-30-2010 |
20100259286 | DIELECTRIC SPECTROSCOPY ASSAYS FOR SCREENING OF ION CHANNEL LIGANDS - A method for measuring membrane potential using dielectric spectroscopy is described. A new theoretical model allows for the determination of membrane potential from low-frequency impedance measurements to provide a non-evasive method which is both rapid and inexpensive. | 10-14-2010 |
20100283488 | SAMPLE MEASUREMENT DEVICE, SAMPLE MEASUREMENT SYSTEM AND SAMPLE MEASUREMENT METHOD - A sample measurement device ( | 11-11-2010 |
20100289509 | METHOD FOR POSITIONING CARBON NANOTUBES BETWEEN ELECTRODES, BIOMOLECULE DETECTOR BASED ON CARBON NANOTUBE-PROBE COMPLEXES AND DETECTION METHOD USING THE SAME - A device and method are disclosed for detecting biomolecules. More specifically, by measuring the change in the electrical properties of a complex between a probe and carbon nanotubes, a non-label detection is achieved, capable of a rapid, sensitive and electrical detection of the presence and concentration of biomolecules in a sample solution. | 11-18-2010 |
20100321045 | Device And System For Measuring Properties Of Cells And Method Of Measuring Properties Of Cells Using The Same - According to a device and system for measuring the properties of cells, there is an advantage in that, since a cell accommodation unit having a volume is provided, the properties of three-dimensional cells can be measured. Further, the present invention is advantageous in that it enables passive measurement of multiple properties which passively measures the electrical, mechanical and/or optical properties of cells, and active measurement of multiple properties which actively applies electrical, mechanical and optical types of stimulation to cells and measures their electrical, mechanical and/or optical reactions, thus measuring the multiple properties of cells with high reliability. | 12-23-2010 |
20100327886 | MEASUREMENT DEVICE, MEASUREMENT SYSTEM, AND CONCENTRATION MEASUREMENT METHOD - A first measurement device is a measurement device for measuring the concentration of a target substance in a sample deposited on a biosensor, and more particularly is constituted such that at least two kinds of voltage of mutually different levels are applied at mutually different timings to the electrode system of the biosensor, and the concentration is corrected on the basis of the amount of change in the current value. | 12-30-2010 |
20100327887 | CHOPPER-STABILIZED INSTRUMENTATION AMPLIFIER FOR IMPEDANCE MEASUREMENT - In general, this disclosure is directed to a mixer amplifier that can be utilized within a chopper stabilized instrumentation amplifier. The chopper stabilized instrumentation amplifier may be used for physiological signal sensing, impedance sensing, telemetry or other test and measurement applications. In some examples, the mixer amplifier may include a current source configured to generate a modulated current at a modulation frequency for application to a load to produce an input signal, an amplifier configured to amplify the input signal to produce an amplified signal, and a demodulator configured to demodulate the amplified signal at the modulation frequency to produce an output signal indicating an impedance of the load. | 12-30-2010 |
20110001497 | FLOATING FRONT-END AMPLIFIER AND ONE-WIRE MEASURING DEVICES - A follower amplifier with power supply biased by a controlled voltage source such that the power supply potentials are, for the frequencies of interest, as close as possible to the potential of the follower output. There is proposed a front-end electronic circuit for biopotential and impedance measurements with outstanding performances (very high input impedance and gain very close to unity). Preferably, the explicit guard electrode and the explicit electronic unit at the belt are no longer necessary; all electronics is embedded in units placed directly at the measurement sites. Moreover, the proposed front-end electronic circuit allows a drastic simplification of the cabling and connectors since all units are connected to only one wire (the theoretical minimum) for potential reference and current return. Preferably, this wire does not even require an electrical isolation and can be easily embedded in the textile of a shirt, in a garment, mesh, belt, etc. | 01-06-2011 |
20110062972 | METHOD OF DETERMINING A SENSITIVITY OF A BIOSENSOR ARRANGEMENT, AND BIOSENSOR SENSITIVITY DETERMINING SYSTEM - According to an embodiment of the present invention, a method of determining or adjusting the sensitivity of a biosensor arrangement comprising at least one field effect biosensor is provided, each of the at least one field effect biosensor comprising: a semiconductor substrate comprising a source region, a drain region and a channel region disposed between the source region and the drain region; a gate isolation layer covering the channel region; and a reference electrode disposed over the gate isolation layer such that a electrolytic solution to be sensed can be provided between the reference electrode and the gate isolation layer. The method comprises the following processes carried out for each field effect biosensor: providing an electrolytic solution between the reference electrode and the gate isolation layer; applying a source/drain voltage between the source region and the drain region; varying a reference voltage supplied to the reference electrode over a voltage range; measuring a resulting drain current while varying the reference voltage in order to obtain a corresponding drain current function; and determining the sensitivity of the field effect biosensor based on the reference voltage supplied to the reference electrode and the corresponding drain current function. | 03-17-2011 |
20110074449 | APPARATUS AND METHOD FOR RECORDING ELECTRICAL ACTIVITY IN CELLS - Apparatus for recording electrical activity produced by cells in-vitro, which comprises a device having a polymeric structure ( | 03-31-2011 |
20110074450 | Method for Measuring Target Component in Erythrocyte-Containing Specimen - [Object] To provide a method for measuring a target component in an erythrocyte-containing specimen with high reliability while suppressing the influence of the Ht value of the specimen. | 03-31-2011 |
20110080181 | BIOMETRIC MEASUREMENT APPARATUS - A biometric measurement apparatus has a measurement unit for measuring bioelectric impedance of different parts of a body and hematocrit. The measurement unit has impedance calculators (IPG | 04-07-2011 |
20110089957 | MULTI-CHANNEL POTENTIOSTAT FOR BIOSENSOR ARRAYS - Arrays of biosensors are provided along with methods for operating the arrays of biosensors. The array of biosensors may include a first reference electrode that is connected to an input of a first control amplifier; a first working electrode and a second working electrode in proximity with the first reference electrode; and a counter electrode that is connected to at least an output of the first control amplifier, where the first control amplifier is operative with the counter electrode to maintain a first specified voltage between the first working electrode and the first reference electrode, and between the second working electrode and the first reference electrode. The array of biosensors optionally may further include a second reference electrode that is connected to an input of a second control amplifier, where the second control amplifier is operative with the counter electrode to maintain a second specified voltage between the first working electrode and the second reference electrode, and between the second working electrode and the second reference electrode. | 04-21-2011 |
20110115504 | Biosensor Methods Having Enhanced Stability and Hematocrit Performance - The present invention relates to electrochemical sensor strips and methods of determining the concentration of an analyte in a sample or improving the performance of a concentration determination. The electrochemical sensor strips may include at most 8 μg/mm | 05-19-2011 |
20110169511 | NOVEL MEMS BIOSENSOR WITH INTEGRATED IMPEDANCE AND MASS-SENSING CAPABILITIES - A biosensor device ( | 07-14-2011 |
20110175632 | METHOD FOR REDUCING DEGREE OF ACTIVATION OF CELLS, AND APPARATUS FOR THE METHOD - The activity of cells is reduced without administering drugs or performing surgical removals. Electromagnetic waves having a frequency of 30 GHz to 3 THz are emitted to cells to reduce activity of the cells. | 07-21-2011 |
20110193575 | VOLUMETRIC INDUCTION PHASE SHIFT DETECTION SYSTEM FOR DETERMINING TISSUE WATER CONTENT PROPERTIES - A method of determining the condition of a bulk tissue sample, by: positioning a bulk tissue sample between a pair of induction coils (or antennae); passing a spectrum of alternating current (or voltage) through a first of the induction coils (or antennae); measuring spectrum of alternating current (or voltage) produced in the second of the induction coils (or antennae); and comparing the phase shift between the spectrum of alternating currents (or voltages) in the first and second induction coils (or antennae), thereby determining the condition of the bulk tissue sample. An apparatus for determining the condition of a bulk tissue sample, having: a first induction coil (or antenna); a second induction coil (or antenna); an alternating current power supply connected to the first induction coil (or antenna), the alternating current power supply configured to generate a spectrum of currents (or voltage) in the first induction coil (or antenna); and a measurement system connected to the second induction coil (or antenna), wherein the measurement system is configured to measure a phase shift difference in the spectrum of currents (or voltages) between the first and second induction coils (or antennae) when the first and second induction coils (or antennae) are positioned on opposite sides of a tissue sample. | 08-11-2011 |
20110221458 | Signal processing algorithms for impedance biosensor - A method for determining impedance includes receiving a time varying voltage signal from a biosensor and receiving a time varying current signal from the biosensor. The time varying voltage signal and the time varying current signal are transformed to a domain that represents complex values. The impedance representative of the biosensor based upon the transformed time varying voltage signal and the time varying current signal is calculated. | 09-15-2011 |
20120019270 | Microfabricated pipette and method of manufacture - A pipette suitable for carrying out patch clamp techniques for characterizing the physiology of living cells is constructed using microfabrication techniques applied to silicon wafers. The pipette includes a body portion configured for mounting in a micromanipulator and a patch tip having a patch aperture. An internal passage through the pipette permits controlled dialysis of the cell contents. A solid conductive electrode near the patch tip can be connected to suitable electronics, permitting electrical activity of the cell to be monitored with very low access resistance and lowering the capacitance of the pipette. Other microfluidic devices such as pumps and valves are integrated into the device so that the dialysis can be rapidly controlled by electronic means. The pipette can also be configured so that multiple cells can be patched simultaneously, or multiple patches can be made on a single cell simultaneously. The design includes a method for separately fabricating the tip and body of the pipette, reducing the expense of fabrication. | 01-26-2012 |
20120056632 | CONDUCTANCE DETECTION SYSTEM AND METHOD - A detection system and method for detecting one or a plurality of species from a mixture of species in a phase. The detection system and method detect changes in conductance induced by the species. The conductance includes a cell structure having a rigid architecture having a top surface a portion of which is electrically conductive forming a first conductive component. A second conductive component substantially overlaps the first conductive component and is spaced from the first conductive component by an insulating component. One or more flow pathways exist between the first conductive component and the second conductive component for the chemical and/or biological species to flow. The first conductive component, the second conductive component and the insulating component have an architecture selected to give a cross sectional area over which a displacement current and/or external current flows that is on an order of about 1 cm | 03-08-2012 |
20120119762 | Container for Measuring Cell Potential and Method for Producing Same - A cellular electric potential measuring container includes a container body and an electrode substrate, the electrode substrate being attached to a lower end of the container body so as to form a plurality of wells, the cellular electric potential measuring container being for measuring cellular electric potential after being mounted on an electric potential measuring device, wherein the container body comprises: a plurality of tubular portions whose upper and lower ends are open. The electrode substrate includes a substrate body, with a plurality of measurement electrodes and a plurality of reference electrodes being disposed on one surface of the substrate body, and the container body is attached to the surface of the substrate body on which the measurement electrodes and the reference electrodes are disposed, and a method for producing a cellular electric potential measuring container. | 05-17-2012 |
20120146670 | Apparatus and Method for Measuring Biochemical Parameters - In a first embodiment, electrodes are coupled to a surface at first, second, and third locations, the first location being further from the third location than from the second location. Impedance is measured at distinct frequencies between pairs of the electrodes. As a result, impedance is measured at differing regions below the surface, one region being deeper below the surface than the other region. In a second embodiment, a microfluidic device carries out an analysis. The analysis may be within a flexible patch adhered to a surface, or may be in a solid device implanted in a body of liquid surrounded by tissue. The analysis may involve pumping a fluid or may involve drawing an analyte electrophoretically through a microfluidic channel. | 06-14-2012 |
20130027064 | Encoded Biosensors and Methods of Manufacture and Use Thereof - An analyte test sensor strip is disclosed having information coded thereon as well as a method of forming the same and conducting an analyte test using the analyte test sensor strip. Information relating to an attribute of the strip or batch/lot of strips may be coded based on resistance values pertaining to electrical aspects of the strip, such as a primary resistive element and a secondary resistive element, the secondary resistive element having one of a plurality of states defined by a location of a closed tap to form a unique resistive path for the secondary resistive element that includes a portion of the primary resistive element depending on the location of the closed tap. The states may be formed on the strip by a secondary processing step in the manufacture of the strip in which a plurality of taps are severed leaving only one tap in a closed state. | 01-31-2013 |
20130082722 | METHOD OF FORMING NANOPORE AND STRUCTURE FORMED WITH NANOPORE - The present invention relates to a method of forming a nanopore and a structure formed with the nanopore. The present invention relates to a method of forming a nanopore by preparing a first structure and a second structure having a surface on which nucleotides can be attached; attaching one ends of a plurality of oligonucleotides complementary to each other on the surface; binding the first structure and the second structure; and removing some of the bound oligonucleotides. The present invention is effective in that a pore of a desired size can be accurately formed by adjusting the length of the oligonucleotides. | 04-04-2013 |
20130169296 | IMPEDANCE ANALYZER - An impedance analyzer includes: a control voltage generating unit for generating a control voltage that has a predetermined amplitude value; a measuring unit operable to provide an output current, which has an amplitude value corresponding to that of the control voltage, for flowing through first and second body portions of a biological target, and to generate a measurement voltage that has an amplitude value corresponding to a difference between voltages at the first and second body portions attributed to flow of the output current therethrough; and a calculating module operable to determine an electrical impedance between the first and second body portions according to a predetermined adjustment value and the amplitude value of the measurement voltage. | 07-04-2013 |
20130214801 | Pressure-based Fingerprint Authentication Device - A method and apparatus for sensing a fingerprint has an array of sensors, each sensor having a sensing surface for receiving the pressure of a finger and having an ITO layer that has an intrinsic variable resistance characteristic that varies because of the varying ridges and valleys of a finger. The intrinsic variable resistance characteristic is converted to a variable voltage for a given pixel based on the pressure applied by the finger, and the fingerprint is determined based on the variable voltage readings for each pixel. | 08-22-2013 |
20150077142 | PLANAR SENSOR AND ITS MANUFACTURING METHOD - A planar sensor having a conductor pattern for electric field sensing and its manufacturing method, the planar sensor comprising arrays of planar electrically conductive sensor areas ( | 03-19-2015 |
20150091592 | TEST STRIP RESISTANCE CHECK - A system for determining usability of an analytical test strip having two electrodes connected in series with a sample cell includes a test meter configured to receive the test strip. The sample cell receives a fluid sample, the sample cell with the received fluid sample having a frequency-dependent impedance. A microprocessor and circuit in the test meter cause application of an AC waveform across the sample cell via the electrodes upon detection of sample in the sample cell and concurrently measure of a current through the electrodes. The AC waveform has a frequency at which the characteristic impedance is substantially zero. The measured current is inversely proportional to a series resistance of the two electrodes. A hand-held test meter and a method for determining usability of an analytical test strip are also described. | 04-02-2015 |
20150102829 | FINGERPRINT SENSOR PACKAGE AND METHOD FOR MANUFACTURING SAME - The objective of the present invention is to provide a fingerprint sensor package having a novel structure and a method for manufacturing same, the fingerprint sensor package enabled with obtaining an accurate fingerprint image by minimizing the distance between a top surface of a sensing portion in a fingerprint sensor and a fingerprint, so as to improve mechanical strength and tolerance to electrostatic discharge compared to existing fingerprint sensor packages. To this end, the present invention provides the fingerprint sensor package and the method for manufacturing same, the fingerprint sensor package comprising: the fingerprint sensor comprising a sensing portion on which pixels for detecting fingerprint data are arranged in an array; via frame being arranged around and spaced apart from the fingerprint sensor and comprising via; a connection electrode for electrically connecting a bonding pad, which is provided on an upper surface of the fingerprint sensor for external access, and the via hole on the via frames; a conductive pattern compring a driving electrode for generating a driving signal for the fingerprint sensor; a mold body which is formed so that the fingerprint sensor and the via frame are integrated; and a protective layer for covering the upper surface of the fingerprint sensor. | 04-16-2015 |
20150102830 | ELECTRO-DIFFUSION ENHANCED BIO-MOLECULE CHARGE DETECTION USING ELECTROSTATIC INTERACTION - According to one aspect, the disclosure is directed to an example embodiment in which a circuit-based arrangement includes a circuit-based substrate securing a channel, with an effective width that is not limited by the Debye screening length, along a surface of the substrate. A pair of reservoirs are included in or on the substrate and configured for containing and presenting a sample having bio-molecules for delivery in the channel. A pair of electrodes electrically couple a charge in the sample to enhance ionic current flow therein (e.g., to overcome the electrolyte screening), and a sense electrode is located along the channel for sensing a characteristic of the biological sample by using the electrostatic interaction between the enhanced ionic current flow of the sample and the sense electrode. Actual detection occurs by using a charge-signal processing circuit to process the sensed charge signal and, therefrom, provide an output indicative of a signature for the bio-molecules delivered in the channel. | 04-16-2015 |
20150109007 | DIFFERENTIAL AMPLIFIER AND ELECTRODE FOR MEASURING A BIOPOTENTIAL - A differential amplifier is described that provides a high common mode rejection ration (CMRR) without requiring the use of precisely matched components. One variation employs a method of noise reduction to increase the SNR of the device. The differential amplifier may be used in an apparatus for measuring biopotentials of a patient, such as an electrode for measuring brain activity. The electrodes can communicate the measured biopotentials with a remote system for further processing, while providing electrical isolation to the patient. | 04-23-2015 |
20150293045 | MEASURING ELECTRODE IMPEDANCE IN AN IMPEDANCE MEASUREMENT CIRCUIT - The disclosure provides a circuit for impedance measurement. The circuit includes an excitation source coupled between a first set of input switches. An impedance network is coupled between the first set of input switches and a first set of output switches. The impedance network includes a body impedance and a plurality of electrode impedances. A sense circuit is coupled to the first set of output switches. The sense circuit measures the body impedance and at least one electrode impedance of the plurality of electrode impedances. | 10-15-2015 |
20150305648 | IMPEDANCE MEASUREMENT CIRCUIT - The disclosure provides a circuit for impedance measurement. The circuit includes an excitation source that generates an excitation signal. A switched resistor network is coupled to the excitation source, and generates an output signal in response to the excitation signal. A sense circuit is coupled to the switched resistor network, and generates a sense signal in response to the output signal. A comparator is coupled to the sense circuit, and generates a clock signal in response to the sense signal. A mixer is coupled to the sense circuit, and multiplies the sense signal and the clock signal to generate a rectified signal. A low pass filter is coupled to the mixer and filters the rectified signal to generate an averaged signal. A processor is coupled to the low pass filter and measures a body impedance from the averaged signal. | 10-29-2015 |