| National Chi Nan University Patent applications |
| Patent application number | Title | Published |
|---|
| 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 |
| 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 |
| 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 |
| 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 |
| 20130075316 | METHOD OF TREATING WATER POLLUTANT - A water pollutant processing method to adsorb, oxidize and activate water pollutants includes using an adsorbent with low oxidation number (zeolite), an activator (from industrial wastes, such as BF slags and BOF slags) and a persulfate to process polluted water and underground water. The method includes an integrated processing system including the persulfate, adsorbent with low oxidation number and iron-containing activator. The integrated processing system not only possesses an adsorbing capability, but also an oxidizing capability using transition metal such as iron on the surface of the activator. The system can not only accelerate removal of water pollutants, but also delay movement of the pollutants to further reduce threat of pollutant spreading to downstream. BF and BOF slags are industrial wastes and the present invention also provides a channel for reusing the wastes. | 03-28-2013 |
| 20120268015 | LIGHT POWER COMPENSATION DEVICE, LIGHT POWER COMPENSATION CIRCUIT, AND DETECTING MODULE - Alight power compensation circuit includes a current source to be electrically coupled to a temperature-detecting light-emitting device and providing a working current for the temperature-detecting light-emitting device, a detector unit operable to detect a forward bias voltage across the temperature-detecting light-emitting device and providing a detector voltage proportional to the forward bias voltage, a compensation voltage converting module converting the detector voltage into a compensation voltage which has a negative relation to change in the detector voltage, and a driving module converting the compensation voltage into a driving current which is proportional to the compensation voltage and which drives operation of a controlled light-emitting device. | 10-25-2012 |
| 20120076214 | Multi-symbol channel estimation method for estimating channel response in a multi-carrier modulation system - A method of multi-symbol channel estimation for estimating channel response to a plurality of transmission symbols within an observation window transmitted through a time-varying channel in a multi-carrier modulation system is provided. The method is to be implemented using a channel estimation device, and includes the steps of: obtaining a window pilot receive vector according to a part of elements of each of receive symbols corresponding to pilots in a corresponding one of the transmission symbols; computing a window pilot channel trans form matrix based upon the pilots in the transmission symbols; computing an estimated value of a polynomial coefficient vector based upon the window pilot receive vector and the window pilot channel transform matrix; and for each of the transmission symbols, computing a plurality of estimated values of channel response associated with possible transmission paths in the time-varying channel according to the estimated value of the polynomial coefficient vector. | 03-29-2012 |
| 20120006758 | METHOD OF RECOVERING POLYHYDROXYALKANOATES (PHAS) FROM MUNICIPAL WASTE SLUDGE - A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) removing coarse particles in the municipal waste sludge and measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing a supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge that has been frozen, a ratio of the solid content of the municipal waste sludge to a volume of the sodium hypochlorite solution added in step (d) ranging from 0.67 mg/ml to 4 mg/ml and being defined as a liquid-solid ratio; and (e) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (d). | 01-12-2012 |
| 20120006754 | METHOD OF RECOVERING POLYHYDROXYALKANOATES (PHAS) FROM MUNICIPAL WASTE SLUDGE - A method of recovering polyhydroxyalkanoates (PHAs) from municipal waste sludge includes: (a) measuring a solid content in the municipal waste sludge in terms of a volatile suspended solid in the municipal waste sludge; (b) removing supernatant from the municipal waste sludge; (c) freezing the municipal waste sludge; (d) conducting a pretreatment of the municipal waste sludge that has been frozen; (e) adding a surfactant into the pretreated sludge to obtain a slurry; (f) adding a controlled amount of sodium hypochlorite solution to the municipal waste sludge obtained in step (e), a ratio of a volume of the sodium hypochlorite solution to the solid content of the municipal waste sludge ranging from 0.67 mg/ml to 1.25 mg/ml and being defined as a liquid-solid ratio; and (g) separating PHAs from non-PHAs substances in the municipal waste sludge obtained in the step (f). | 01-12-2012 |
| 20110185409 | Authentication Method and System of At Least One Client Device with Limited Computational Capability - An authentication method of a server device and at least one client device with limited computational capability includes randomly generating an initial codeword using the client device. The initial codeword is generated from a linear combination of at least one base. The base is assigned to the client device and selected from a generator matrix that is stored in the server device and that corresponds to a linear code. | 07-28-2011 |
| 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 |
