78 results about "Column switching" patented technology

A capacitive touch sensor system and method incorporating an interpolated sensor array is disclosed. The system and method utilize a touch sensor array (TSA) configured to detect proximity/contact/pressure (PCP) via a variable impedance array (VIA) electrically coupling interlinked impedance columns (IIC) coupled to an array column driver (ACD), and interlinked impedance rows (IIR) coupled to an array row sensor (ARS). The ACD is configured to select the IIC based on a column switching register (CSR) and electrically drive the IIC using a column driving source (CDS). The VIA conveys current from the driven IIC to the IIC sensed by the ARS. The ARS selects the IIR within the TSA and electrically senses the IIR state based on a row switching register (RSR). Interpolation of ARS sensed current/voltage allows accurate detection of TSA PCP and/or spatial location.

A resistive touch sensor system and method incorporating an interpolated sensor array is disclosed. The system and method utilize a touch sensor array (TSA) configured to detect proximity/contact/pressure (PCP) via a variable impedance array (VIA) electrically coupling interlinked impedance columns (IIC) coupled to an array column driver (ACD), and interlinked impedance rows (IIR) coupled to an array row sensor (ARS). The ACD is configured to select the IIC based on a column switching register (CSR) and electrically drive the IIC using a column driving source (CDS). The VIA conveys current from the driven IIC to the IIC sensed by the ARS. The ARS selects the IIR within the TSA and electrically senses the IIR state based on a row switching register (RSR). Interpolation of ARS sensed current/voltage allows accurate detection of TSA PCP and/or spatial location.

A touch sensor detector system and method incorporating an interpolated sensor array is disclosed. The system and method utilize a touch sensor array (TSA) configured to detect proximity/contact/pressure (PCP) via a variable impedance array (VIA) electrically coupling interlinked impedance columns (IIC) coupled to an array column driver (ACD), and interlinked impedance rows (IIR) coupled to an array row sensor (ARS). The ACD is configured to select the IIC based on a column switching register (CSR) and electrically drive the IIC using a column driving source (CDS). The VIA conveys current from the driven IIC to the IIC sensed by the ARS. The ARS selects the IIR within the TSA and electrically senses the IIR state based on a row switching register (RSR). Interpolation of ARS sensed current/voltage allows accurate detection of TSA PCP and/or spatial location.

The invention has two main embodiments, a first called column switching and blanking and a second embodiment called doubling. The first embodiment is a projector for displaying a stereoscopic image with projector using one or more digital micromirror devices positioned into a plurality of columns and rows. The projector itself includes a light source, an optical system, a video processing system and a data system for driving the micromirror devices. The data subsystem provides separate data to a plurality of column pairs of the micromirrors. The projector includes a stereoscopic control circuit having a first state of the control circuit for inputting a first eye view of the stereoscopic image and causing the micromirrors of a first column of each column pair to be in various on and off states during said first eye view of said stereoscopic image and for causing all of said micromirrors of a second column of each column pair to be in an off state during said first eye view of said stereoscopic image. A second state of the control circuit is used for inputting a second eye view of the stereoscopic image and causes the micromirrors of the second column of each column pair to be in various on and off states during the second eye view of the stereoscopic image and for causing all of the micromirrors of the first column of each column pair to be in an off state during the second eye view of said stereoscopic image. The second embodiment is a projector for displaying a stereoscopic image with the projector using one or more digital micromirror devices positioned into a plurality of columns and rows. The projector includes a light source, an optical system, a video processing system and a data system for driving said micromirror devices. The data subsystem provides separate data to a plurality of column pairs of the micromirrors. The projector includes a stereoscopic control circuit having a first state for inputting a first eye view of the stereoscopic image and causing each micromirror of each column pair to be in various but identical on and off states during said first eye view of said stereoscopic image. A second state of the control circuit for inputs a second eye view of the stereoscopic image and causes each micromirror of each column pair to be in various but identical on and off states during the second eye view of the stereoscopic image.

A multiport, diaphragm sealed valve suitable for use as both a sampling and column switching valve. The valve is constructed to internally block fluid communication between one or more pairs of ports in a valve operating mode. Such blocking may be used to conserve carrier gas when the valve is in the ON position.

The invention relates to an ion chromatography single-pump column switching system which mainly comprises a pump, a guard column, an analytical column, a suppressor, a conductivity detector, a sample loop, a ten-way valve, an ion exclusion column, a waste liquid barrel, a six-way valve, an enrichment column and other parts, wherein the pump is connected with the six-way valve; the enrichment column is connected on the six-way valve; the six-way valve is respectively connected with the guard column, the ion exclusion column and the waste liquid barrel; the analytical column is respectively connected with the guard column and the suppressor; the suppressor is respectively connected with the analytical column and the conductivity detector; the sampling loop is connected on the ten-way valve; and the ten-way valve is respectively connected with a conductivity flow cell, the conductivity detector, the ion exclusion column and the waste liquid barrel. The ion chromatography single-pump column switching system can ensure the analytical effect of conventional anions and realize the separation and the monitoring of the conventional anions in a high-concentration organic acid substrate by using one ion chromatography instrument, as well as simultaneously simplify the technological process, reduce chromatography accessories and save solvent consumption.

A touch sensor detector system and method incorporating an interpolated sensor array is disclosed. The system and method utilize a touch sensor array (TSA) configured to detect proximity/contact/pressure (PCP) via a variable impedance array (VIA) electrically coupling interlinked impedance columns (IIC) coupled to an array column driver (ACD), and interlinked impedance rows (IIR) coupled to an array row sensor (ARS). The ACD is configured to select the IIC based on a column switching register (CSR) and electrically drive the IIC using a column driving source (CDS). The VIA conveys current from the driven IIC to the IIC sensed by the ARS. The ARS selects the IIR within the TSA and electrically senses the IIR state based on a row switching register (RSR). Interpolation of ARS sensed current/voltage allows accurate detection of TSA PCP and/or spatial location.

The invention discloses a gas-dissolved-in-vegetable-insulating-oil analyzer with an oil-gas separation function and a detecting method. The gas-dissolved-in-vegetable-insulating-oil analyzer with the oil-gas separation function and the detecting method are characterized in that helium serves as carrier gas, and the vacuum degassing and minitype thermal conductance chromatographic instrument combined technology is utilized for analyzing hydrogen, oxygen, nitrogen, carbon monoxide, carbon dioxide, methane, ethylene, ethane, dimethylmethane and acetylene in vegetable insulating oil. A four-chromatographic-column analysis system is adopted, a valve is utilized for column switching, gas pump circulating gas is adopted for sample introduction, all samples enter a chromatographic column A at a time, meanwhile, a chromatographic column B and a chromatographic column D are connected to the tail end of the chromatographic column A in series, and after hydrogen, oxygen, nitrogen, methane and carbon monoxide are exhausted, the original state of a ten-way valve is switched. Carbon dioxide, ethylene, acetylene, ethane and dimethylmethane firstly generate peaks on a channel A of a thermal conductivity detector, and hydrogen, oxygen, nitrogen, carbon monoxide and methane generate peaks on a channel B of the thermal conductivity detector. The instrument is high in sensitivity to the gas and suitable for being applied and popularized in smart power grids.

A solid-state imaging device includes: a pixel array including a plurality of pixel circuits arranged in rows and columns; a vertical signal line that is provided for each of the columns and transmits pixel signals; a column AD circuit that is provided for each of the columns and AD converts the pixel signals from the vertical signal line; a column-switching circuit that is interposed in the vertical signal line between the pixel array and the column AD circuit and switches connection between the vertical signal line and the column AD circuit; a controller that causes the column-switching circuit to switch the connection for every horizontal scan period; and a restoration circuit that restores ordering of the AD converted signals so as to correspond to ordering in which the vertical signal lines are arranged in the pixel array.

The invention relates to the technical field of analytic chemistry and biological chemistry. The invention provides a biological chromatography comparing and screening system which is an on-line column switching full two-dimensional chromatographic system. The biological chromatography comparing and screening system is composed of three high-performance liquid chromatography solvent conveying pumps, a six-position column switching valve, a two-position ten-way valve, two quantitative loops, a plurality of biological chromatographic columns and a monolithic column tandem mass spectrum analyzer. The biological chromatography comparing and screening system is used for performing parallel comparison on the affinity of micro-molecules on biological chromatography of normal and pathological tissues or cell sources, so as to screen disease targeting active components in a complicated sample. The invention further provides a biological chromatography comparing and screening method using the screening system. The screening system and method are applicable to automatic high-flux screening of the disease targeting active components in the sample of a complicated system and the specificity of a screening result is greatly improved by analyzing the difference of normal and pathological models; meanwhile, the screening method provided by the invention has the characteristics of automation, simplicity in operation, good universality, strong flexibility and short consumed time; the flexibility requirements of various types of biological chromatography can be met, and the screening flux and the reliability are obviously improved.

A non-volatile memory device for measuring a read current of a unit cell is disclosed. The non-volatile memory device includes a unit cell configured to read or write data, a column switching unit configured to select the unit cell in response to a column selection signal, a sense amplifier controlled by a sense-amplifier enable signal, configured to sense and amplify data that is received from the unit cell through the column switching unit, a first latch unit configured to latch the sense-amplifier enable signal for a predetermined time when a test code signal received from an external part is activated, a column controller configured to output a latch control signal in response to a combination of a column switch-off signal and a column control signal, and a second latch unit configured to control whether or not the column selection signal is latched in response to an activation state of the latch control signal.

The invention relates to a combination method of a polymer carbon nanotube chromatographic column and an ion chromatographic column switching technology, which is carried out in an ion chromatography single pump column switching system and characterized by adopting the polymer carbon nanotube chromatographic column for carrying out the on-line pretreatment on a sample, and combining with the ion chromatography single pump column switching technology, and the analysis steps sequentially comprises the steps of surveying and mapping a baseline, loading the sample to a quantitative ring, eliminating a matrix, enriching target ions and separating and analyzing the target ions. Compared with the traditional column switching system, instruments and equipment required for the system are simpler, the reagent consumption is reduced, the analysis time is shortened, and the surplus sample pretreatment steps are unnecessary, thereby increasing the range of applicable samples and being applicable to on-line high-throughput analysis. The combination method has low cost, simple production process and excellent performances, and can be effectively used for separation and analysis of a variety of organic compounds, including organic solvents, organic acids, organic acid salts and the like.

The invention discloses a method for measuring trace ammonium ions in high salt matrix through ion chromatography single pump column switching. The trace ammonium ions in a complex sample can be detected. The system comprises a liquid feeding pump, a six-way valve A, an injector, a quantitative loop, a six-way valve B, a receiving pipe, a protective column, an analytical column and a suppressor, wherein the liquid feeding pump, the receiving pipe, a conductivity detector, a waste liquid bottle and the six-way valve B are connected to the six-way valve A; the six-way valve B is respectively connected with the six-way valve A, the quantitative loop, the injector, the waste liquid bottle and the protective column; the protective column is sequentially connected with the analytical column, the suppressor and the conductivity detector. The trace ions in the high salt matrix can be detected by using single pump circulating column switching ion chromatography, the problem that ions which are similar in retention effect and large in concentration difference cannot be separated by a conventional common ion chromatographic column is solved, the requirements of detection substances on the chromatographic column are lowered, a single leacheate pump is used, and the equipment is simple and convenient to use.

The invention relates to two-dimensional liquid chromatography, in particular to a vacuum auxiliary-solvent evaporation interface combined with the two-dimensional liquid chromatography. As an interface for fraction switching or column switching, the interface is mainly applied to the two-dimensional liquid chromatography, and comprises a six-way valve, a fraction collecting-evaporating quantification pipe, a heater and a vacuum pump. The interface has the advantages of solving the switching of a two-dimensional mobile phase, reducing the volume of secondary-dimensional sample introduction, increasing the concentration of samples and improving detection sensitivity. A two-dimensional liquid chromatography system using the vacuum auxiliary-solvent evaporation interface is suitable for separating and analyzing non-volatile or high-boiling-point compounds.

The invention relates to a column-switching circulating volume exclusion chromatography system for biomacromolecule separation and purification, which comprises a liquid chromatography pump, a sampling valve, a three-way or four-way connector, a switching valve A, a switching valve B, a volume exclusion column A, a volume exclusion column B and a detector. The pump, the sampling valve, the volume exclusion column A, the switching valve A, the volume exclusion column B, the detector, the switching valve B and the three-way or four-way connector are connected with one another in turn through pipelines, the number of the biomacromolecules getting into a circulation and separation system can be controlled by adjusting the switching frequency or mode of the valve A, and the separation and the collection of the biomacromolecule components can be controlled by adjusting the switching of the valve B. Compared with the conventional volume exclusion chromatography, the system has the characteristics of strong separating power, high resolution and the like, and can be applied to the separation and the purification of biomacromolecule samples. Simultaneously, the system also has good utility value in constructing a continuous biomacromolecule multi-dimensional separation platform.

The invention discloses a method of separating and purifying eicosapentaenoate and docosahexaenoate via simulated moving bed chromatography. The separation step includes: enabling eluting capacity of a liquid phase in region II to be higher than that of a liquid phase in region III so that EPA (eicosapentaenoic acid) ester, DHA (docosahexaenoic acid) ester and intermediate impurity are intercepted in the region II and the region III, with pre-impurity moving forward with the liquid phases and flowing out of a raffinate outlet, and post-impurity backing with column switching and flowing out of the raffinate outlet; adjusting flow quantities and compositions of liquid phases flowing in the region II and region III or adjusting switching time so that the intermediate impurity is intercepted in the system, with the EPA ester moving forward with the liquid phases and flowing out of the raffinate outlet, and DHA ester backing with column switching and flowing out of the raffinate outlet; flushing out target components intercepted in a simulated moving bed for the purpose of recycling. The simulated moving bed chromatography system of the invention allows EPA ester and DHA ester to be separated from disposable bis-ester fish oils, thereby saving energy and reducing production cost.

The invention provides a light-emitting element array advertising board, and a column switching circuit and a control method thereof. The light-emitting element array advertising board comprises a light-emitting element array circuit, a plurality of column switching circuits, a plurality of row driving circuits, and a control circuit. The light-emitting element array circuit comprises a plurality of light-emitting elements which are arranged in a plurality of rows and a plurality of columns. The column switching circuits are correspondingly coupled to the columns to provide a column node column turn-on voltage or a discharge path according to a column operation signal. The row driving circuits are correspondingly coupled to the rows to provide a row node row turn-on voltage or a default level according to a row operation signal. The control circuit is coupled to the column switching circuits and the row driving circuits to provide column operation signals and row operation signals.

The invention discloses a gas chromatograph for gas analysis in production field, comprising a sampling unit, a gas path control unit, a circuit control unit, a separation unit, a detection unit and a data processing unit. The gas chromatograph for gas analysis in production field is characterized in that the sampling unit is a sampling and automatic sample injection unit, and is composed of a fixed volume sampling tube, a flow meter and a ten-way valve with blowing function; the gas path control unit is composed of a solid filter, a stainless steel diaphragm pressure stabilization valve and a helium purifier, and provides high-purity carrier gas for the separation unit; the circuit control unit is composed of a temperature control circuit, a signal amplification circuit and a detector pulse high-voltage circuit; the separation unit is provided with three diaphragm valves with blowing function, wherein one is the ten-way valve with blowing function in the sampling unit, the other two are four-way valves with blowing function, and complete separation of constituents is completed through a three-valve and four-column switching flow; the detection unit is a pulse helium ionization detector; and the data processing unit is composed of an embedded industrial control computer and a data uploading module. The gas chromatograph for gas analysis in production field has the advantages of high detection sensitivity, good stability and strong operability.

The invention relates to an apparatus for fixing objects by means of vacuum. The invention is based on the problem of making it possible to vary the effective surface area of a vacuum table in a finely graduated manner so that objects with base surface areas of different sizes can be arrested securely. The problem is solved by an apparatus for fixing objects by means of vacuum, in that the table (1) has arranged on it, alongside a first vacuum chamber (11), a second vacuum chamber (12) and a third vacuum chamber (13), which extend the first vacuum chamber (11) and the second vacuum chamber (12) all the way in the x direction, wherein the second vacuum chamber (12) has a structure made up of a multiplicity of parallel and line-forming grooves (15) which run in the x direction, are connectedto one another in the y direction via a first connecting channel (22) and can be released or closed in series by means of a line-switching device (2) relating to the first vacuum chamber (11), the third vacuum chamber (13) has a structure made up of a multiplicity of parallel and column-forming grooves (16) which run in the y direction, are connected to one another in the x direction via a secondconnecting channel (42) and can be released or closed in series by means of a column-switching device (4) relating to the first vacuum chamber (11), and certain sections of the third vacuum chamber (13) can be released or closed in series in the y direction simultaneously, and in a manner corresponding to the number and positions of the line-forming grooves (15), by means of the line-switching device (2) in correspondence with the second vacuum chamber (12).

The invention discloses a method for measuring the contents of vitamin D by two-dimensional column switching high performance liquid chromatography. Secondary switching normal-phase chromatography isadopted for detection, provitamin D and vitamin D in a sample can be simultaneously measured, in addition, after a sample to be measured is dissolved by normal hexane, the sample to be measured can bedirectly measured so as to avoid a complex sample pretreatment process, and therefore, the method is suitable for the accurate detection of trace vitamin D in plant oil preparation.