Chin-Hao
Chin-Hao Chang, Hsin-Chu TW
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20120212359 | ADC Calibration Apparatus - An analog-to-digital (ADC) calibration apparatus comprises a calibration buffer, a comparator and a digital calibration block. Each reference voltage is sent to a track-and-hold amplifier as well as the calibration buffer. The comparator compares the output from the track-and-hold amplifier and the output from the calibration buffer and generates a binary number. Based upon a successive approximation method, the digital calibration block finds a correction voltage for ADC offset and nonlinearity compensation. By employing the ADC calibration apparatus, each reference voltage can be calibrated and the corresponding correction voltage can be used to modify the reference voltage during an ADC process. | 08-23-2012 |
Chin-Hao Chang US
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20150289627 | CURING DEVICE FOR CURING NAIL GEL - A curing device for curing a nail gel includes a body, a motor, at least a vane, and at least a light source assembly. The motor is disposed at the body. The vane is disposed at a shaft of the motor. The light source assembly is disposed at the vane. With the vane driving the light source assembly to rotate, the curing device not only cures the nail gel quickly and evenly but also dissipates heat quickly. | 10-15-2015 |
Chin-Hao Chang, New Taipei City TW
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20150190331 | NAIL LACQUER COMPOSITION WITH HYPOSENSITIVITY - The present invention provides a gel polish composition characterized by containing no irritating reactive (meth)acrylate monomer, such as hydroxyethylmethacrylate (HEMA) and ethyl methacrylate (EMA). In the present invention, the gel polish composition comprises at least an aliphatic urethane acrylate oligomer, a polyester acrylate oligomer, a low-irritating acrylate monomer, and a photoinitiator. The gel polish composition possesses low or no irritating effects to skin, exhibits excellent adhesiveness to nails, and is stable in long-term storage at ordinary shelf conditions. | 07-09-2015 |
20150289627 | CURING DEVICE FOR CURING NAIL GEL - A curing device for curing a nail gel includes a body, a motor, at least a vane, and at least a light source assembly. The motor is disposed at the body. The vane is disposed at a shaft of the motor. The light source assembly is disposed at the vane. With the vane driving the light source assembly to rotate, the curing device not only cures the nail gel quickly and evenly but also dissipates heat quickly. | 10-15-2015 |
Chin-Hao Chang, Hsinchu City TW
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20080285498 | Key recognition method and wireless communication system - A key recognition method and a key recognition system are applied to a wireless bridging apparatus and a terminal apparatus with a wireless communication function. When a user uses the wireless bridging apparatus at a first time, the user cannot connect the wireless bridging apparatus to a wireless network through the terminal apparatus until key verification between the terminal apparatus and the wireless bridging apparatus has been conducted and passed. The key recognition method includes the steps of: transmitting, by the wireless bridging apparatus, an original code to the terminal apparatus; encoding, by the terminal apparatus, the original code to obtain a transformed code; encoding, by the terminal apparatus, the original code and the transformed code to obtain a recognition code; and transmitting, by the terminal apparatus, the recognition code to the wireless bridging apparatus for verification and communication establishment. | 11-20-2008 |
20120212361 | SWITCHED-CAPACITOR CIRCUIT WITH LOW SIGNAL DEGRADATION - A switched-capacitor circuit is disclosed. The switched-capacitor circuit includes a comparator having a first and second input, a first and second sampling capacitor, and a first and second switching circuitry. The first switching circuitry charges the first and second sampling capacitor with an input signal. The second switching circuitry selectively couples the first sampling capacitor with a reference voltage and selectively couples the second sampling capacitor and the first and second input of the comparator to a common voltage. The comparator performs a compare of the input signals against the reference voltage, and outputs a signal. | 08-23-2012 |
20130015876 | APPARATUS AND METHOD FOR MEASURING DEGRADATION OF CMOS VLSI ELEMENTSAANM LAI; Fang-Shi JordanAACI Chia YiAACO TWAAGP LAI; Fang-Shi Jordan Chia Yi TWAANM LU; Chih-ChengAACI Tainan CityAACO TWAAGP LU; Chih-Cheng Tainan City TWAANM LIN; Yung-FuAACI Hsinchu CityAACO TWAAGP LIN; Yung-Fu Hsinchu City TWAANM HSUEH; Hsu-FengAACI Tainan CityAACO TWAAGP HSUEH; Hsu-Feng Tainan City TWAANM CHANG; Chin-HaoAACI Hsinchu CityAACO TWAAGP CHANG; Chin-Hao Hsinchu City TWAANM WENG; Cheng YenAACI Hsinchu CityAACO TWAAGP WENG; Cheng Yen Hsinchu City TWAANM MHALA; Manoj M.AACI HsinchuAACO TWAAGP MHALA; Manoj M. Hsinchu TW - The reliability of an integrated circuit is inferred from the operational characteristics of sample metal oxide semiconductor (MOS) devices switchably coupled to drain/source bias and gate input voltages that are nominal, versus voltage and current conditions that elevate stress and cause temporary or permanent degradation, e.g., hot carrier injection (HCI), bias temperature instability (BTI, NBTI, PBTI), time dependent dielectric breakdown (TDDB). The MOS devices under test (preferably both PMOS and NMOS devices tested concurrently or in turn) are configured as current sources in the supply of power to a ring oscillator having cascaded inverter stages, thereby varying the oscillator frequency as a measure of the effects of stress on the devices under test, but without elevating the stress applied to the inverter stages. | 01-17-2013 |
20130141260 | PIPELINE ANALOG-TO-DIGITAL CONVERTER - A pipelined ADC includes a first, second, and third pairs of comparators. The first pair of comparators compare an input voltage to a first positive reference voltage and to a first negative reference voltage. The second pair of comparators compare the input voltage to a second positive reference voltage and to a second negative reference voltage. Each comparator of the first and second pairs of comparators outputs a digital signal to an encoder. A third pair of comparators compares the input voltage to a third positive reference voltage and to a third negative reference voltage, and a comparator compares the input voltage to ground. The comparator and each comparator of the third pair of comparators is configured to output respective digital signals to an encoder. A multiplying digital-to-analog converter outputs a voltage based on the input voltage, an output from the encoder, and an output of the random number generator. | 06-06-2013 |
Chin-Hao Chang, Hsinchu TW
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20120075132 | METHOD AND APPARATUS FOR CALIBRATING SIGMA-DELTA MODULATOR - In a method of converting an analog signal to digital format, an analog input signal is received and processed using sigma-delta modulation to provide a first digital signal that represents the analog input signal in digital format and to provide a second digital signal that represents a first error introduced during the sigma-delta modulation. A second error that is error introduced during the sigma-delta modulation is estimated. A pre-correction signal is determined based on the first and second digital signals. A difference between the estimated second error and the pre-correction digital signal is determined to provide a digital output signal representing the analog input signal in digital format. An error correction element operable to adjust the digital output signal based on the analog input signal, the digital output signal, and the second digital signal is controlled. | 03-29-2012 |
20120081244 | METHOD AND APPARATUS FOR ANALOG TO DIGITAL CONVERSION - An analog to digital converter (ADC) comprises an input node having a variable analog input voltage, first and second switched capacitor circuits, an operational amplifier, and a control circuit. The first switched capacitor circuit has first and second capacitors and is coupled to the input node, and the second switched capacitor circuit has third and fourth capacitors and is coupled to the input node. The operational amplifier is configured to be conditionally coupled to only one of the first and second switched capacitor circuits at a time and configured to conditionally provide feedback to the switched capacitor circuits via an output node. The control circuit is coupled to the first and second switched capacitor circuits for conditional coupling to the operational amplifier. | 04-05-2012 |
Chin-Hao Chen, Tu-Cheng TW
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20130093630 | ANTENNA MODULE AND WIRELESS COMMUNICATION DEVICE - An antenna module includes a printed circuit board (PCB), a first antenna, a second antenna, a connecting portion, and a feed portion. The first antenna and the second antenna are respectively positioned on two opposite surface of the PCB. The first antenna includes a first radiating body and a first supporting member positioned between the first radiating body and the PCB. A first space is formed between the first radiating body and the PCB. The second antenna includes a second radiating body and a second supporting member positioned between the second radiating body and the PCB. A second space is formed between the second radiating body and the PCB. The connecting portion is connected between the first antenna and the second antenna. The feed portion is positioned on the PCB and is connected to the first and second antennas. | 04-18-2013 |
Chin-Hao Fu, Chengdu TW
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20130022313 | Optical Devices and Methods of Making and Using the Same - A bi-directional fiber optical subassembly, including a laser diode, a photodiode and an optical fiber, an optical transceiver including the same, and methods of making and using the same are provided. An antireflection unit is added to a position facing the photodiode within the transceiver. The antireflection unit is configured to decrease or eliminate reflected light interference within the transceiver. The present subassembly, transceiver, and methods can reduce, minimize, or prevent interference, and the performance of the optical subassembly can also be enhanced by decreasing or eliminating reflected light interference within the transceiver. | 01-24-2013 |
Chin-Hao Hung, Sijhih City TW
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20090002925 | Universal type keyboard - A universal type keyboard has a common design of an upper housing and key caps for different languages such that keyboards of different languages can be manufactured with a universal upper housing. | 01-01-2009 |
20090058808 | Computer mouse device - A mouse device includes a main body and a cover. The main body includes a roller wheel, a left key and a right key, wherein the roller wheel is sandwiched between the left key and the right key. The cover includes a right key cover and a left key cover to define an opening between thereof, wherein the right key cover and the left key cover are separately pivotally connected to the main body. When the cover lies against a top surface of the main body, the right key cover lies against the right key, the left key cover lies against the left key, and the opening exposes the roller wheel. | 03-05-2009 |
Chin-Hao Hung, Suhih City TW
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20090003246 | Multimedia conference device - A multimedia conference device includes a main body, at least three legs, and a cylindrical portion. At least three legs are pivotally connected with the main body respectively at one end thereof. The cylindrical portion extends outward from a central area of the main body. | 01-01-2009 |
Chin-Hao Su, Taipei City TW
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20150111322 | MANUFACTURING METHOD OF LIGHT-EMITTING STRUCTURE - A manufacturing method of a light-emitting structure is provided. The manufacturing method comprises the following steps. Firstly, a light-emitting die is formed on a carrier substrate carrier substrate, wherein the light-emitting die comprises a first type semiconductor layer, a light-emitting layer and a second type semiconductor layer in order, and has an electrode hole passing through the second type semiconductor layer, the light-emitting layer and a part of the first type semiconductor layer. Next, a current blocking layer covering an inner sidewall of the electrode hole is formed. Then, a current spreading layer covering the current blocking layer is formed, wherein the current spreading layer is separated from the inner sidewall by the current blocking layer. Then, the current blocking layer covering the inner sidewall of the electrode hole is removed. | 04-23-2015 |
Chin-Hao Tsao, Miaoli TW
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20150244045 | BATTERY MODULE - A battery module includes a casing, and a battery assembly, a frequency converting assembly, and a heat dissipation assembly received in the casing. The casing defines a first vent and a second vent. The casing includes a top portion and an opposite bottom portion. The first vent and the second vent are respectively adjacent to the bottom portion and the top portion. The frequency converting assembly is electrically connected to the battery assembly. The heat dissipation assembly includes a fan secured to the casing and facing the second vent. The fan is configured to rotate so as to draw air into the casing via the first vent, cause the air to flow through the battery assembly and the frequency converting assembly, and draw the air out of the casing via the second vent. | 08-27-2015 |
Chin-Hao Wu, Hsinchu TW
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20100289410 | Illumination device and control method thereof - An illumination device and a control method thereof are provided. The illumination device includes a fan and a light emitting diode module capable of emitting a light beam. The control method includes: detecting a fan signal of the fan; determining whether an operation of the fan is abnormal according to the fan signal, wherein a driving current of the LED module is reduced when the operation of the fan is determined to be abnormal; and a driving current of the LED module is reduced to a predetermined rang of the normal rated driving current when the fan is determined to be stop according to the fan signal. | 11-18-2010 |
20100295688 | Illumination device and control method thereof - An illumination device and a control method of the illumination device are provided. The illumination device includes a thermal sensor and a light emitting diode (LED) module. The control method include steps of: enabling the thermal sensor to detect the environment temperature outside the illumination device, and comparing the environment temperature with a threshold value, wherein if the environment temperature is higher than the threshold value, the driven current of the LED module is reduced and the thermal sensor is shut down within a continued period of time. | 11-25-2010 |
Chin-Hao Wu, Taipei County TW
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20100131445 | METHOD OF DATA TRANSMISSION WITH DIFFERENTIAL DATA FUSION - A data processing method for communication for a network having a plurality of nodes and a data collection device is provided. First, one of the nodes is selected according to a schedule for overhearing a reference data transmitted by a reference node to the data collection device. Then, a predicted data is calculated by the selected node according to the reference data and a corresponding prediction module. Next, the predicted data is compared with an actual data captured by the selected node, and an error between the predicted data and the actual data is transmitted to the data collection device. The selected node needs not to transmit any data to the data collection device if there is no error between the predicted data and the actual data. Thereby, the quantity of data to be transmitted is greatly reduced, and accordingly problems caused by insufficient bandwidth of the network are avoided. | 05-27-2010 |
Chin-Hao Yang, New Taipei City TW
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20130341471 | COLLAPSIBLE CABLE MANAGEMENT ARM - A collapsible cable management arm is foldable with a plurality of heat dissipation apertures. The collapsible cable management arm includes a plurality of racks pivotally connected together which gives a zigzag chain structure being retractable. The rack is formed by a primary and a secondary plate. The secondary plate resembles the size and shape of the primary plate. The secondary plate slides into the tray-like primary plate to form the individual rack with hollow compartment there-between. The thickness of the rack arises from a primary positioning portion of the primary plate. The hollow compartment is further divided into connection and cable compartments by at least one pair of primary and secondary partitions. | 12-26-2013 |
20130342092 | BASE ASSEMBLY FOR SERVER COMPUTER HARD DRIVE DRAWER - The instant disclosure relates to a base assembly of a drawer. The base assembly includes a base plate, a pull-release handle, an extension member, a pivoting member, a cover plate and a latch member. The pull-release handle has a handle portion and defines a handle opening. The pull-release handle and the extension member are reciprocable in parallelism with a pulling direction on the base plate. The pivoting member has a force-receiving end and a force-transmitting end. The force-transmitting end is movable by the force-receiving end. The latch member has a locking strip and at least one locking portion. The force-transmitting end is connected to one end of the locking strip. The force-transmitting end works cooperatively with an elastic member, such that the locking strip and the locking portion are reciprocable in parallelism with a releasing direction. | 12-26-2013 |
20140022723 | REMOVABLE HARD DISK DRIVE HOLDER - A removable hard disk drive holder made of a plastic unit enveloping a metallic unit comprises a bracket, a plate and a handle. The bracket has a front panel and two side plates. The two side plates extend toward the same direction perpendicularly from the opposite edge of the front panel. The front panel has a front panel pivot portion arranged over one edge thereof The plate slidably engages with the front panel and has a latch fastening portion. The handle has a handle pivot portion and the handle fastening portion conforming to the latch fastening portion. The handle pivot portion is arranged over one edge of the handle and pivotally connected to the front panel pivot portion. The removable hard disk drive is structurally firm, light and thin and minimizing associated members. | 01-23-2014 |