Patent application number | Description | Published |
20100106425 | SOLID-STATE UREA BIOSENSOR AND ITS DATA ACQUISITION SYSTEM - A data acquisition system for a solid-state urea biosensor uses an amplifier, a low-pass filter and a data acquisition card to acquire and relay data to a computer to be analyzed by a signal analysis program and displayed on a display panel. The biosensor includes a substrate, and three individual sensing areas separated by an insulating layer on the substrate. Each individual sensing area contains a conductive layer on the substrate, and a pH sensitive membrane is deposited thereon. An enzyme layer is deposited on one of the pH sensitive membranes to form a working electrode. The other two sensing areas are a quasi-reference electrode and a contrast electrode, respectively. The signals are transferred to an instrumentation amplifier. The amplified signals are then transferred to a low-pass filter. The filtered signals are analyzed by the program and then displayed on the display panel. | 04-29-2010 |
20100156467 | CONTROL SYSTEM FOR DIFFERENT COLORS OF LIGHT EMITTING DIODES - A control system includes a clock unit for providing a first clock signal, and a second clock signal having a frequency lower than that of the first clock signal. Three control units are coupled respectively to three light emitting diodes (LED) emitting respectively three different colors. Each control unit is operable based on the clock signals and a corresponding set of first and second reference values to output a driving pulse signal to a corresponding LED such that the corresponding LED is driven by the driving pulse signal to emit light during a corresponding one of first, second and third time periods of a control cycle of the control system. | 06-24-2010 |
20110209996 | Electrochemical sensor - An electrochemical sensor for detecting the concentration of ions in a solution includes a substrate, a sensor unit, and a reference electrode. The sensor unit includes at least one working electrode. The working electrode has a conductive layered structure formed on the substrate, and a sensor element of a metal oxide film formed on the conductive layered structure and capable of reacting with the ions in the solution to generate a potential. The reference electrode is spaced apart from the working electrode, and includes a conductive film printed on the substrate for establishing a potential difference between the working electrode and the reference electrode when the electrochemical sensor is brought into contact with the solution. | 09-01-2011 |
20120280129 | DUAL FUNCTION INJECTION TYPE ARRAY READOUT DEVICE AND CIRCUIT AND DUAL FUNCTION READOUT MODULE - A dual function injection type array readout device includes at least two sensor groups and a dual function injection type array readout circuit. Each sensor group has two sensors of different functions, and each sensor generates a sense current according to a corresponding sensed target. The dual function injection type array readout circuit includes at least two dual function readout modules, each having two readout units, each electrically coupled to a respective sensor of a corresponding sensor group. Each readout unit includes a current-to-voltage converter having an integration capacitor, and a sample-and-hold device electrically coupled to the current-to-voltage converter. A switch unit is electrically coupled to the integration capacitors of the readout units. | 11-08-2012 |
20130076260 | LIGHT-EMITTING SYSTEM HAVING A LUMINOUS FLUX CONTROL DEVICE - A light-emitting system includes first and second solid-state light-emitting components, a current source providing a constant current through the second solid-state light-emitting component, a first instrumentation amplifier detecting a second forward voltage across the second solid-state light-emitting component so as to generate a first detection voltage having a magnitude dependent on the second forward voltage, a compensation voltage module operable to generate a compensation voltage having a magnitude related to the second forward voltage according to the first detection voltage and two reference voltages, and a power control module detecting a first forward voltage across the first solid-state light-emitting component and providing a driving current therethrough that is dependent on the compensation voltage and the first forward voltage and that varies according to ambient temperature. | 03-28-2013 |
20130076267 | LIGHT EMITTING SYSTEM WITH LIGHT EMITTING POWER STABILIZATION - A light emitting system includes: a voltage detecting unit connected across a solid-state light emitting component for detecting a forward voltage thereof and generating a detection voltage having a magnitude dependent on the forward voltage; a current control unit connected to the light emitting component for controlling, according to a compensation voltage, flow of an operating current, which has a magnitude dependent on the compensation voltage, therethrough; and a compensation voltage module connected to the voltage detecting unit and the current control unit, disposed to receive a reference voltage, and configured to generate the compensation voltage, which varies according to the forward voltage, for provision to the current control unit according to the detection voltage, an operating voltage having a magnitude dependent on the operating current, and the reference voltage. | 03-28-2013 |
20130088164 | ILLUMINATION SYSTEM, AND DRIVING DEVICE AND SIGNAL TRANSMITTER DEVICE THEREOF - An illumination system includes: a signal receiver device configured to, in response to a coupling signal, generate a receiver-side signal frame including a control code portion based on control information of the coupling signal; a code extracting unit operable to extract the control code portion from the receiver-side signal frame; and a current providing unit operable to provide a driving current through a light emitting component according to the control code portion extracted from the code extracting unit. The driving current has a magnitude dependent on the extracted control code portion. | 04-11-2013 |
20130088167 | LIGHT EMITTING SYSTEM CAPABLE OF COLOR TEMPERATURE STABILIZATION - A light emitting system includes: first, second, and reference light emitting components having first, second, and reference forward voltages when driven under constant current, respectively; an instrumentation amplifier for generating a temperature detection voltage with a magnitude dependent on the reference forward voltage of the reference light emitting component; first and second compensation voltage modules each generating a respective one of first and second compensation voltages based at least on the temperature detection voltage; and first and second power control modules providing first and second driving currents through the first and second light emitting components according to the first and second compensation voltages and the first and second forward voltages, respectively. | 04-11-2013 |
20130106308 | DIMMING DEVICE | 05-02-2013 |
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 |
20130180320 | MEASUREMENT DEVICE - A measurement device is for use with a current-type sensor unit, which, when applied with a driving voltage, is capable of reacting with a target substance for generating a sensor current that corresponds to a concentration level of the target substance, and includes: a driving unit operable to generate the driving voltage that includes alternating current (AC) and direct current (DC) components; and a processing unit for receiving the sensor current from the current-type sensor unit, and operable to determine the concentration level of the target substance according to a peak-to-peak value of the sensor current received by the processing unit. | 07-18-2013 |
20140009072 | LIGHT EMITTING SYSTEM AND POWER CONTROL DEVICE THEREOF - A light emitting system includes a light emitting device having a forward voltage dependent on an ambient parameter, and a power control device including a current generator, a compensation voltage module, and a control signal generator. The current generator converts a control signal into a driving current for provision to the light emitting device, and provides a feedback voltage. The compensation voltage module obtains a compensation voltage according to the forward voltage, the feedback voltage, and a reference voltage. The control signal generator generates the control signal according to the compensation voltage for provision to the current generator. | 01-09-2014 |
20140147336 | IMPEDANCE BIOSENSOR FOR ELECTRICAL IMPEDANCE BIOLOGICAL SENSING AND MANUFACTURING METHOD THEREOF - An impedance biosensor for sensing concentration of a target analyte in a solution includes an insulator substrate, electrically coupled conductive trace units on the substrate, biological sensing films, and an insulator cover. Each trace unit has a first trace and a second trace, each having a sensing end portion and a connecting end portion. The biological sensing films are disposed on the sensing end portions, and have a capture layer for capturing the target analyte. The insulator cover covers the trace units and is formed with window openings that expose the sensing end portions and that cooperate with the insulator substrate to define a space for receiving the solution therein. | 05-29-2014 |
20140197756 | LIGHT EMITTING SYSTEM, OPTICAL POWER CONTROL DEVICE, AND CONTROL SIGNAL MODULE - A light emitting system includes a light emitting device having a forward voltage, and an optical power control device. The optical power control device includes a control signal module and a current controller. The control signal module generates a control signal according to the forward voltage, and the current controller permits flow of a driving current through the light emitting device according to the control signal. | 07-17-2014 |
20140197878 | SWITCHABLE READOUT DEVICE - A readout device is adapted for dual-band sensing, and includes an amplifier, two direct injection (DI) readout circuits to be respectively connected to two sensors, and a switching module. Through operation of the switching module, one of the DI readout circuits can be electrically connected to the amplifier, and cooperate with the other DI readout circuit to achieve a dual-band sensing feature. | 07-17-2014 |
20150014534 | SWITCHABLE READOUT DEVICE - A readout device is adapted for dual-band sensing, and includes an amplifier, two direct injection (DI) readout circuits to be respectively connected to two sensors, and a switching module. Through operation of the switching module, one of the DI readout circuits can be electrically connected to the amplifier, and cooperate with the other DI readout circuit to achieve a dual-band sensing feature. | 01-15-2015 |
20150028749 | DRIVING DEVICE FOR DRIVING A LIGHT EMITTING DEVICE WITH STABLE OPTICAL POWER - A driving device is adapted to drive a light emitting device with stable optical power, and includes a feedback driving circuit, and a pulse wave generating circuit. The feedback driving circuit provides a driving current that is associated with a pulse-wave signal to the light emitting device, and outputs a feedback signal. The pulse wave generating circuit includes an analog-to-digital converter outputting a digital feedback signal according to the feedback signal, and a controller outputting the pulse-wave signal according to the digital feedback signal. | 01-29-2015 |