Wei-Chang
Wei-Chang Chen, Taipei TW
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20130177104 | ORTHOGONAL MULTI-RATE MODULATION DEVICE AND METHOD - An orthogonal multi-rate modulation method for modulating a symbol vector made up of a plurality of data symbols is disclosed. The orthogonal multi-rate modulation method includes the following steps: firstly, a precoding matrix, in which the column vectors are mutually orthogonal, is provided. Then, a product of the symbol vector and the precoding matrix is made to generate a precoded vector. Finally, the precoded vector is filtered by a Nyquist Analog Filter, so as to output a complex baseband waveform. | 07-11-2013 |
20150263876 | TRANSMISSION CIRCUIT FOR SPECTRALLY PRECODED ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS WITH INTERLEAVED SUBCARRIER ALLOCATION - One transmission circuit for spectrally precoded orthogonal frequency division multiple access with interleaved subcarrier allocation includes a data generator, a correlative precoder, a subcarrier allocator and an OFDM modulator. The feature of the correlative spectral precoder is a precoding matrix having a lower triangular band matrix with a correlative bandwidth B. When the transmitter circuit satisfies a single-user orthogonal frequency division multiple access (OFDMA) protocol, the baseband power spectral density function S(f) of the transmission signal s(t) satisfies a following equation: | 09-17-2015 |
Wei-Chang Chen, Taipei City TW
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20090278930 | IMAGE SURVEILLANCE SYSTEM AND METHOD THEREOF - An image surveillance system and a method thereof are disclosed. The image surveillance system comprises an image-capturing apparatus, which connects to the Internet, and has an IP address for capturing an image of a predetermined area to produce a digital image signal. At least a display device connects to the Internet. The display device comprises a frame body which resembles a conventional picture frame, a search engine, a receiver and a monitor which are all disposed in the frame body, and a microprocessor which is disposed in the frame body and connects to the search engine, the receiver, and the monitor to lock down the IP address of the image-capturing apparatus so as to make the digital image signal be captured and displayed. | 11-12-2009 |
Wei-Chang Chen, Baltimore, MD US
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20150093779 | SYSTEM AND DEVICE FOR CHARACTERIZING CELLS - A diagnostic device includes a microscope configured to obtain image data on a plurality of cells and a computing device. The computing device is configured to receive the image data, identify at least a portion of each of the plurality of cells based on the received image data, determine at least one of a value of a morphological parameter for each identified at least a portion of the plurality of cells or a relative organization among the identified at least a portion of the plurality of cells, and calculate statistics for the plurality of cells based on the at least one of the determined values of the morphological parameter or the determined relative organization, the statistics including information suitable for distinguishing metastatic cells from non-metastatic cells. The diagnostic device further includes an output device configured to output the statistics for diagnosis. | 04-02-2015 |
Wei-Chang Chou, New Taipei City TW
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20120155023 | ELECTRONIC DEVICE - An electronic device includes a housing unit, a first electronic component, a heat-dissipating module, and an air-guide passage. The first electronic component, the heat-dissipating module, and the air-guide passage are disposed in the housing unit. The heat-dissipating module includes a fan unit and a heat-dissipating sink. The fan unit has a first air outlet zone and a second air outlet zone. The heat-dissipating sink is for dissipating heat generated by the first electronic component. The heat-dissipating sink is substantially aligned with the first air outlet zone. The air-guide passage is in spatial communication with the second air outlet zone and is formed with a passage air outlet. Air through the first air outlet zone flows in a first direction. Air through the passage air outlet is directed into the housing unit and flows in a second direction different from the first direction. | 06-21-2012 |
Wei-Chang Huang, Hsinchu TW
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20120210449 | NOVEL TRANSPARENT ZEBRAFISH AND PREPARATION METHOD THEREOF - This invention provides a biological selective breeding technique in preparation of a transparent zebrafish, Citrine. The appearance of Citrine is transparent and yellowish, with uniformly pigmented black eyes and its inner organs are observable by eyes. The invention also provides a method for in vivo observation of progression and expansion of various disease stages or physiological processes. | 08-16-2012 |
Wei-Chang Li, Berkeley, CA US
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20110067984 | MICROELECTROMECHANICAL SYSTEM (MEMS) RESONANT SWITCHES AND APPLICATIONS FOR POWER CONVERTERS AND AMPLIFIERS - A modally driven oscillating element periodically contacts one of more electrical contacts, thereby acting as a switch, otherwise known as a resonant switch, or “resoswitch”, with very high Q's, typically above 10000 in air, and higher in vacuum. Due to periodic constrained contacting of the contacts, the bandwidth of the switch is greatly improved. One or more oscillating elements may be vibrationally interconnected with conductive or nonconductive coupling elements, whereby increased bandwidths of such an overall switching system may be achieved. Using the resoswitch, power amplifiers and converters more closely approaching ideal may be implemented. Integrated circuit fabrication techniques may construct the resoswitch with other integrated CMOS elements for highly compact switching devices. Through introduction of specific geometries within the oscillating elements, displacement gains may be made where modal deflections are greatly increased, thereby reducing device drive voltages to 2.5 V or lower. | 03-24-2011 |
Wei-Chang Liu, Hsinchu City TW
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20160065180 | SAMPLING CIRCUIT AND MASTER-SLAVE FLIP-FLOP - A sampling circuit includes a first latch, a second latch and a signal transition detector. The first latch is disposed on an upstream side of a logic circuit. The second latch is disposed on a downstream side of the logic circuit. The first latch and the second latch respectively switch to opposite states of an opaque state or a transparent state according to trigger signals generated by a reference clock and a control clock. The signal transition detector is configured for detecting whether the signal outputted by the logic circuit is in error or not and outputting a corresponding control clock. The above-mentioned sampling circuit can delay switching the second latch to the opaque state and switching the first latch to the transparent state to correct sampling when a timing error occurs. | 03-03-2016 |
Wei-Chang Wang, Kaohsiung City TW
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20140335334 | PROTECTIVE FILM - A protective film includes a non-adhesion layer and adhesion layer, and the non-adhesion layer further includes a surface layer and middle layer, where the surface layer of the non-adhesion layer is formed from a blend of Homo-polypropylene(H-PP) and low density polyethylene(LDPE), the middle layer of the non-adhesion layer is formed from a blend of high density Polyethylene(HDPE) and LDPE among Polyethylene series, and the adhesion layer is formed from thermoplastic elastomer added with low hardness plastic material, allowing the protective film of the present invention not to yield melting and thus sticking issues easily, and ensuring that the protective film has a good attachment and unwinding nature on application. | 11-13-2014 |
20150138869 | NON-VOLATILE MEMORY - A non-volatile memory includes a memory unit. The memory unit includes a first word line, a second word line, a control line, a logic circuit, a bit line, a first cell, and a second cell. The logic circuit has a first input terminal connected to the first word line, a second input terminal connected to the second word line, and an output terminal connected to the control line. The first cell has a control terminal connected to the first word line, a first terminal connected to the control line, and a second terminal selectively connected to the bit line. The second cell has a control terminal connected to the second word line, a first terminal connected to the control line, and a second terminal selectively connected to the bit line. | 05-21-2015 |
Wei-Chang Yang, Taipei City TW
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20090236675 | SELF-ALIGNED FIELD-EFFECT TRANSISTOR STRUCTURE AND MANUFACTURING METHOD THEREOF - A self-aligned field-effect transistor (FET) is provided. The self-aligned FET includes a substrate, a dielectric layer, conductive electrodes, and a carbon nanotube. A patterned back-gated conductive electrode is disposed in the substrate. The dielectric layer is disposed on the substrate. The conductive electrodes are disposed on the dielectric layer and function as a source/drain. The patterned source/drain conductive electrodes contain a metal silicide such as cobalt silicide serve as a catalyst for carbon nanotube synthesis. The carbon nanotube is disposed on the dielectric layer to be electrically connected with the source/drain conductive electrodes. | 09-24-2009 |