Hou, Taipei County
Hsin An Hou, Taipei County TW
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20100315940 | SIGNAL TRANSMITTING METHOD, SIGNAL RECEIVING METHOD AND SIGNAL RECEIVING DEVICE IN OFDM SYSTEM - A signal transmitting method, a signal receiving method, and a signal receiving device are adapted to an OFDM system. In the signal transmitting method and signal receiving method, double asymmetric training symbols are used for performing time-varying channel response estimation. In the transmitting method, asymmetric pilot sub-carriers are added in data sub-carriers to form a plurality of first and second training symbols. The pilot symbols in the first and second training symbols are asymmetrically configured. In the receiving method, a channel response corresponding to each pilot sub-carrier is estimated by using two adjacent asymmetric pilot symbols. The received data sub-carrier is then restored through the channel response. Through the signal transmitting method and signal receiving method, even in a transmitter or a receiver moving at a high speed, more bandwidths can be used to transfer data, and contents of the transferred data can be correctly estimated. | 12-16-2010 |
Hsin-Hong Hou, Taipei County TW
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20100109772 | SIGMA DELTA CLASS D POWER AMPLIFIER AND METHOD THEREOF - A sigma delta class D power amplifier includes a loop filter, a quantizer, and an output stage. The quantizer is coupled to the loop filter and quantifies an error signal according to levels of two reference signals to output a pair of mean signals, wherein different logic combinations of the mean signals belong to one of three quantum states. The output stage is coupled to the quantizer and outputs a corresponding output signal according to the different quantum states to drive a load, wherein a driving current of the output signal belongs to one of the three driving states which include at least a steady state with no current of a power amplifier. | 05-06-2010 |
20100123518 | POWER AMPLIFIER AND MODULATOR THEREOF - A power amplifier including a loop filter, a frequency generator, a quantizer, and an output stage module is provided. The frequency generator outputs a signal with a reference frequency to the loop filter, and includes a logic circuit, a current array, and a dummy load. The dummy load representing a load circuit in the loop filter is coupled to the current array. An equivalent impedance of the dummy load is proportioned to an equivalent impedance of the load circuit. The current array outputs the signal and a dummy signal to the loop filter and the dummy load, respectively, according to a logic signal. By using the frequency generator to modulate the frequency automatically, an impact on the power amplifier caused by passive devices therein due to process variationscan be reduced. | 05-20-2010 |
Kun-Hong Hou, Taipei County TW
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20080320239 | Data storage system - A data storage system is provided. The data storage system includes a first storage module for storing a first data, a second storage module for storing a second data, a control module and a processing module. The control module generates a first control signal and a second control signal, and accesses the first data and the second data according to the first control signal and the second control signal. The processing module is coupled to the first storage module, the second storage module and the control module, and controls the first storage module and the second storage module to transmit the first data and the second data to the control module according to the first control signal and the second control signal respectively, wherein the processing module bypasses the second storage module when receiving the first control signal. | 12-25-2008 |
Lan-Chung Hou, Taipei County TW
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20110085680 | Apparatus for detecting the approach distance of a human body and performing different actions according to the detecting results - An apparatus for detecting the approach distance of a human body and performing different actions according to the detecting results comprises: an infrared sensing circuit for sensing the human body's movement; a short-distance infrared signal level detector, used for detecting the amplitude level of signals and comparing them with a preset reference level; a long-distance infrared signal level detector, used for detecting the amplitude level of signals and comparing them with another preset reference level; and a long-distance indication-signal time delayer, used for delaying the output of the signals from the long-distance-signal level detector. During the delayed period, a soft pre-recorded speech is sent off to greet customers and introduce merchandize when the short-distance-signal level detector detects a “short-distance” signal with larger amplitude, whereas a louder pre-recorded speech is sent off to draw the attention of customers when no “short-distance” signal is detected by the short-distance-signal level detector. | 04-14-2011 |
Pei-Lin Hou, Taipei County TW
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20100134627 | HAND-OFF MONITORING METHOD AND HAND-OFF MONITORING SYSTEM - A hand-off monitoring method is provided for monitoring a space divided into several monitoring regions. Each of the monitoring regions is monitored by a surveillance camera. The hand-off monitoring method comprises receiving a warning signal from a location and identifying a first surveillance camera related to the location according to the warning signal. Then, an object triggering the warning signal is identified according to a video signal provided by the first surveillance camera. A moving path of the object is predicted according to a non-linear movement prediction model. Then, a control operation is performed, according to the moving path, to control the surveillance cameras in the monitoring regions where the moving path passes so as to hand-off monitor the object. | 06-03-2010 |
20110106315 | METHOD AND APPARATUS FOR ESTIMATING TEMPERATURE - A method and an apparatus for estimating temperature are provided for estimating a temperature of a test point in a space with an air conditioner. In the method, a first and a second sensor device are deployed in the space, wherein the second sensor device is deployed at the test point. Then, state parameters and temperature transformation functions are defined according to temperatures detected by the first and the second sensor devices and a state of the air conditioner during a predetermined time period. After the second sensor device is removed, a current state of the air conditioner is determined by reference temperatures detected by the first sensor device and the state parameters. One of the temperature transformation functions is selected according to the current state, and a current temperature of the test point is estimated by using the selected temperature transformation function and the reference temperatures. | 05-05-2011 |
Pei-Lin Hou, Taipei County CN
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20090310882 | METHOD, APPARATUS AND INTEGRATED CIRCUIT CAPABLE OF REDUCING IMAGE RINGING NOISE - A method for reducing image ringing noise includes: (a) calculating a line spread function value of each pixel's luminance in an input image; (b) dividing the input image into a plurality of blocks, and calculating an average value and a maximum value of the line spread function values for all the pixels in each of the blocks; (c) based on the average value and the maximum value of the line spread function values for of each of the blocks, determining whether each of the blocks is an interfered flat block or a non-interfered block; (d) setting the pixels in the interfered flat block as a noisy pixels; (e) determining whether each pixel in the non-interfered block is an edge pixel or a non-edge pixel, and setting each the non-edge pixels in the non-interfered block as a noisy pixels; and (f) performing smoothing on each of the noisy pixels thus set, and combining smoothed pixels with the edge pixels for output as an output image. | 12-17-2009 |
20120301035 | METHOD, APPARATUS AND INTEGRATED CIRCUIT FOR IMPROVING IMAGE SHARPNESS - An apparatus for improving image sharpness includes a pixel detector that labels each of pixels in an image as one of an edge/texture type and a non-edge/texture type, a pixel type determiner that classifies each of the pixels that are labeled as the edge/texture type as one of a border point type pixel, a transition point type pixel, and a peak point type pixel, and a filter. The filter includes a shrinking/expanding filter and a high boost filter, the shrinking/expanding filter filtering the border point type pixels, and the high boost filter subsequently filtering the peak point type pixels and then filtering the transition point type pixels. | 11-29-2012 |
Shu-Zhi Hou, Taipei County TW
Ting-Teng Hou, Taipei County TW
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20090073122 | Computer input device - A computer input device includes a housing, a move tracking module, and a light pervious plate. The move tracking module is disposed in the housing, and emits a sensing light. The light pervious plate is movably disposed between the housing and the move tracking module, and may be moved between a first position and a second position relatively to the move tracking module. In this manner, the sensing light selectively penetrates the light pervious plate and is emits out of the housing, or is directly emits out of the housing, so that the computer input device correspondingly executes a touch mode or a mouse mode. | 03-19-2009 |
20100013769 | Encoding module - An encoding module applied to a computer input device is described, which includes an encoder and a scroll wheel. The encoder is electrically disposed on a circuit board of the computer input device and is protruded with a revolving shaft. The scroll wheel has a wheel axle passing there through and is rotatably disposed within a shell of the computer input device. One end of the wheel axle has two opposite clamping arms, so as to clamp the revolving shaft. Once the scroll wheel is rotated, the revolving shaft is driven to rotate together. | 01-21-2010 |
Yi-Ping Hou, Taipei County TW
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20120013479 | LED SYSTEM AND DRIVING DEVICE WITH ERROR DETECTION, AND ERROR DETECTION MODULE THEREOF - A LED system and driving device with error detection and an error detection module thereof is disclosed. In which, through the detection of the error detection module, the errors associated with the LED module and the driving circuit may be detected. If the errors are detected, the error detection module may output a determination signal to the control unit so that the LED system could be protected from damages. | 01-19-2012 |