Patents by Inventor Kai Wen
Kai Wen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8013037Abstract: The invention provides a fire resistant material and a formulation thereof. The formulation comprises a liquid suspension of a modified inorganic particle and an organic component. The modified inorganic particle comprises an inorganic particle with hydroxyl groups and a surface modifier coupled to the inorganic particle via a urethane linkage, wherein the surface modifier has an ethylenically unsaturated end group. The organic component comprises a monomer, oligomer, prepolymer, polymer, or combinations thereof, capable of reacting with the ethylenically unsaturated end group.Type: GrantFiled: December 12, 2007Date of Patent: September 6, 2011Assignee: Industrial Technology Research InstituteInventors: Shou I Chen, Che I Kao, Chih-Chien Chen, Jin-Her Shen, Wei-Feng Teng, Hsiao-Pin Chiang, Kai-Wen Cheng, Fan-Jeng Tsai
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Patent number: 8009462Abstract: A SRAM architecture includes a read/write control signal, a read/write control transistor block, an equalize transistor block, a 6-T SRAM cell, a sense amplifier block, a column selection transistor block and a write driver. The 6-T SRAM cell can store and write data. The sense amplifier block is used to read out the data stored in the 6-T SRAM cell correctly when the SRAM architecture performs a read operation and makes bit lines BL (bit line) and BLB( bitline) produce a minimum voltage difference. The column selection transistor block is used to select a column that the data is written in and read out. The write driver is used to perform a write operation to the 6-T SRAM cell of the column. The SRAM architecture can effectively increase the read SNM and dramatically reduce the power consumption.Type: GrantFiled: July 8, 2009Date of Patent: August 30, 2011Assignee: National Central UniversityInventors: Cihun-Siyong Gong, Ci-Tong Hong, Muh-Tian Shiue, Kai-Wen Yao
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Publication number: 20110158933Abstract: A pharmaceutical preparation containing polymeric compounds as shown in the specification. This preparation can be used to improve liver function and treat liver disease, and promoting liver tissue regeneration.Type: ApplicationFiled: October 20, 2010Publication date: June 30, 2011Applicant: Industrial Technology research Institute (ITRI)Inventors: Shau-Feng Chang, Chun-Hsien Ma, Kuo-Yi Yang, Chien-Tung Lin, Shyh-Horng Lin, Kai-Wen Huang
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Patent number: 7965628Abstract: A data transmitting method for wireless communication system applied in a transmitting device for transmitting a number of data packets to a receiving device is provided. Firstly, n data packets are transmitted to the receiving device during the first time period, wherein n is a nature number. Next, the first accumulated number is recorded, wherein the first accumulated number denotes the times of resending the n data packets during the first time period. Then, determine that whether the first accumulated number exceeds a predetermined value or not. If the first accumulated number exceeds the predetermined value, then other communication methods are adopted and the method carries on transmitting the remaining data packets; if the first accumulated number does not exceed the predetermined value, the first accumulated number is cleared, and the method carries on transmitting the remaining data packets to the receiving device.Type: GrantFiled: August 20, 2007Date of Patent: June 21, 2011Assignee: Quanta Computer Inc.Inventors: Kai-Wen Tien, Jia-Jie Chiang
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Publication number: 20110144494Abstract: In general, the invention provides methods for use in the acquisition and display of ultrasound images. In particular, the invention provides methods for displaying ultrasound images using a persistence algorithm, gating ultrasound acquisition based on subject respiration, triggering ultrasound acquisition based on subject ECG, and destroying bubble contrast agents during imaging. The methods may be employed with any suitable ultrasound system.Type: ApplicationFiled: September 18, 2009Publication date: June 16, 2011Inventors: James Mehi, Christopher A. White, Andrew Needles, Jerrold Wen, Kai Wen Liu, Desmond Hirson
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Publication number: 20110141371Abstract: A method for adjusting image is applied to an image output device. According to the method, the image output device firstly obtains a current image frame including plural pixels, and analyzes an intensity of an input image signal value of each pixel. The image output device defines each pixel having the input image signal value being smaller than a critical value as a dark pixel, and counts a number of the dark pixels to obtain a ratio of the dark pixels among all the pixels to serve as a dark pixel ratio. The image output device determines an image adjusting curve equation according to the dark pixel ratio, substitutes the input image signal values to the image adjusting curve equation, and obtains output image signal values of the pixels. Finally, the image output device combines all the output image signal values to obtain a final output image frame.Type: ApplicationFiled: March 22, 2010Publication date: June 16, 2011Applicant: MICRO-STAR INT'L CO., LTD.Inventors: Kai-Wen Lo, Ren-Jie Yang
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Publication number: 20110110383Abstract: The disclosure is a network interface controller (NIC) capable of sharing buffers, which is coupled to a host and a network to make the network connection. The NIC includes a transmitting buffer, a transmitting controller, a receiving buffer, and a receiving controller. The transmitting controller controls the transmitting buffer to transmit the transmission data provided by the host to the network. The receiving controller controls the receiving buffer to transmit the reception data received from the network to the host, and determines a storage capacity of the receiving buffer. When the storage capacity is smaller than a set value, the receiving controller transmits a request signal to the transmitting controller, the transmitting controller generates a response signal according to the request signal and a status signal corresponding to the transmitting buffer, and the receiving controller controls whether reception data is stored in the transmitting buffer according to the response signal.Type: ApplicationFiled: November 9, 2010Publication date: May 12, 2011Inventors: Kuo-Nan YANG, Yen-Hsu Shih, Chia-Ying Chiu, Kai-Wen Cheng
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Patent number: 7940693Abstract: The invention discloses a wireless communication system for calculating time of flight. The system transmits and receives a plurality of packets every a plurality of delay times. Thereafter, the wireless communication system calculates a plurality of reference times according to the delay times and processing times and then averages the reference times to obtain the time of flight. Thereby, the time of flight can be calculated more accurately.Type: GrantFiled: September 5, 2007Date of Patent: May 10, 2011Assignee: Quanta Computer Inc.Inventor: Kai-Wen Tien
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Patent number: 7928030Abstract: A method for manufacturing microwave dielectric ceramics has the steps of: mixing multiple A-metal compounds and sintering multiple A-metal compounds between 1350˜1450° C. for 2˜4 hr to make a first component Ba5+y(Nb1?kMnk)4O15; mixing and sintering multiple B-metal compounds to make a second component Ba1+zNb2O6; and mixing the first component Ba5+y(Nb1?kMnk)4O15, the second component Ba1+zNb2O6 and at least one sintering aid to make a third component (1?x)Ba5+y(Nb1?kMnk)4O5-xBa1+zNb2O6; wherein x, y, z and k are molar fractions and 0?x<1, 0<y?0.3, 0?z?0.3, 0?k?0.1; and the at least one sintering aid is 0.3˜3 wt %. The microwave dielectric ceramics of (1?x)Ba5+y(Nb1?kMnk)4O15-xBa1+zNb2O6 have superior microwave properties, low sintering temperature, simple chemical composition and manufacturing requirements applicable to low temperature co-sintered ceramic systems so no re-tooling is required.Type: GrantFiled: October 29, 2008Date of Patent: April 19, 2011Assignee: Walsin Technology CorporationInventors: Hong Wang, Huanfu Zhou, Xi Yao, Ruey-Tzeng Chang, Huey-Ru Chen, Chung-Kai Wen
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Patent number: 7925277Abstract: The invention provides a positioning system of positioning a wireless communication apparatus. The positioning system transmits and receives positioning signals which have different frequency bands and generates corresponding positioning values according to the positioning signals. The positioning system then judges and selects positioning values which have less error from the generated positioning values, and calculates an average value of the selected positioning values. Therefore, positioning of the wireless communication apparatus will be more precise. Furthermore, if the positioning system is implemented in a radio-wave-based wireless communication environment, the N positioning signals can be polarized in a linear polarization way, a left-handed circular polarization way or a right-handed circular polarization way, so as to reduce the environmental impact to enhance precision of the positioning.Type: GrantFiled: October 26, 2007Date of Patent: April 12, 2011Assignee: Quanta Computer Inc.Inventor: Kai-Wen Tien
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Publication number: 20110082226Abstract: Disclosed is a multi-isocyanate prepolymer formed by reacting diisocyanate and/or diisocyanate trimer with diol and/or triol. Because the prepolymer and the diol/triol have similar molecular weights, additional crosslink agents such as diamine, multi-amine, or combinations thereof are not necessary. Furthermore, the prepolymer can be blown to form foam, or directly gelled to form an unbubbled product such as film.Type: ApplicationFiled: December 30, 2009Publication date: April 7, 2011Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Fan Jeng Tsai, Yih-Her Chang, Chih-Chien Chen, Yuung-Ching Sheen, Kai-Wen Chang
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Patent number: 7920130Abstract: The invention discloses a touch panel capable of identifying fingerprints. The touch panel includes a touch layer and a fingerprint sensing layer. The touch layer is used for sensing a specific location touched by a finger. The fingerprint sensing layer is disposed under the touch layer and includes a storage unit, multiple receiving modules, multiple transmitting modules, and a control module. The storage unit stores a first fingerprint data corresponding to the finger. Each receiving module respectively corresponds to one of the transmission modules. According to the specific location, one of the transmission modules transmits a signal, and the signal is then reflected by the finger to the corresponding receiving module. The control module converts the signal received by the receiving module into a second fingerprint data and then determines whether the second fingerprint data conforms to the first fingerprint data.Type: GrantFiled: January 28, 2008Date of Patent: April 5, 2011Assignee: Quanta Computer Inc.Inventor: Kai-Wen Tien
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Patent number: 7911266Abstract: A low complexity and low power phase shift keying demodulator structure includes a digitizer, a phase-transition-independent carrier clock extractor, a binary correlater, a delay element, and a sampler. The digitizer digitizes a BPSK signal for an output waveform. The phase-transition-independent carrier clock extractor detects the phase transition on the output of the digitizer and produces a carrier clock signal. The binary correlater has correlated processes to the output signal of the digitizer and carrier clock signal obtained from the phase-transition-independent carrier clock extractor. The sampler samples the signal from the binary correlater according to the signal from the delay element in order to finish the demodulation with only a small capacitance.Type: GrantFiled: January 19, 2009Date of Patent: March 22, 2011Assignee: National Central UniversityInventors: Cihun-Siyong Gong, Muh-Tian Shiue, Kai-Wen Yao
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Patent number: 7901358Abstract: A system for acquiring an ultrasound signal comprises a signal processing unit adapted for acquiring a received ultrasound signal from an ultrasound transducer having a plurality of elements. The system is adapted to receive ultrasound signals having a frequency of at least 20 megahertz (MHz) with a transducer having a field of view of at least 5.0 millimeters (mm) at a frame rate of at least 20 frames per second (fps). The signal processing can further produce an ultrasound image from the acquired ultrasound signal. The transducer can be a linear array transducer, a phased array transducer, a two-dimensional (2-D) array transducer, or a curved array transducer.Type: GrantFiled: November 2, 2006Date of Patent: March 8, 2011Assignees: VisualSonics Inc., Sunnybrook Health Science CentreInventors: James Mehi, Ronald E. Daigle, Laurence C. Brasfield, Brian Starkoski, Jerrold Wen, Kai Wen Liu, Lauren S. Pflugrath, F. Stuart Foster, Desmond Hirson
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Publication number: 20110037655Abstract: A dielectric-loaded and coupled planar antenna includes a ground plane, a radiator, a ceramic substrate and at least one ground coupling electrode. The radiator is formed by extending one side of the ground plane, and a feeding point is formed between the radiator and the ground plane. The radiator extends at least one end portion on the ceramic substrate. The ground coupling electrode is formed on the ceramic substrate by extending the other side of the ground plane. The ground coupling electrode formed on the ceramic substrate and the end portion of the radiator formed on the ceramic substrate are coupled with each other to form a coupling electrode. The present invention can adjust the coupling amount loaded by the ceramic substrate so as to be operated in a desired frequency range. The present invention can be operated in a single-frequency, dual-frequency or multi-frequency condition.Type: ApplicationFiled: August 17, 2009Publication date: February 17, 2011Inventors: Yueh-Lin Tsai, Sheng-Kai Wen, Chih-Wei Chen, Po-Chun Huang, Lee-Ting Hsieh
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Publication number: 20110007556Abstract: A SRAM architecture comprises a read/write control signal, a read/write control transistor block, an equalize transistor block, a 6-T SRAM cell, a sense amplifier block, a column selection transistor block and a write driver. The 6-T SRAM cell can store and write data. The sense amplifier block is used to read out the data stored in the 6-T SRAM cell correctly when the SRAM architecture performs a read operation and makes bit lines BL (bit line) and BLB( bitline) produce a minimum voltage difference. The column selection transistor block is used to select a column that the data is written in and read out stored in. The write driver is used to perform a write operation to the 6-T SRAM cell of the column. The SRAM architecture can effectively increase the read SNM and dramatically reduce the power consumption.Type: ApplicationFiled: July 8, 2009Publication date: January 13, 2011Inventors: Cihun-Siyong Gong, Ci-Tong Hong, Muh-Tian Shiue, Kai-Wen Yao
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Publication number: 20110002422Abstract: A method for detecting digital video signal parameters detects an integer carrier frequency offset (ICFO), a pilot pattern and a carrier mode of a signal received by an Orthogonal Frequency-Division Multiplexing (OFDM) communication system. The method includes receiving a first OFDM symbol comprising a plurality of first frequency-domain sub-carriers and a second OFDM symbol comprising a plurality of second frequency-domain sub-carriers; generating a plurality of sub-carrier correlation results according to the first frequency-domain sub-carrier and the second frequency-domain sub-carrier; and determining a maximum sub-carrier correlation result from the plurality of sub-carrier correlation results; and outputting an ICFO, a pilot pattern and a carrier mode corresponding to the maximum sub-carrier correlation result.Type: ApplicationFiled: June 2, 2010Publication date: January 6, 2011Applicant: MSTAR SEMICONDUCTOR, INC.Inventors: Kai-Wen Cheng, Jen-Hsing Wang, Ko-Yin Lai, Yi-Ying Liao, Tai-Lai Tung
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Publication number: 20100329396Abstract: An interference detector receives a data stream including predetermined symbols that include a first data and a second data, between which is a frequency offset. The interference detector includes a correlation apparatus that generates a first correlation result and a second correlation result according to the data stream; a power searching unit, coupled to the correlation apparatus, that generates a first maximum correlation result and a first neighboring power according to the first correlation result, and generates a second maximum correlation result and a second neighboring power according to the second correlation result; and a determining unit, coupled to the power searching unit, that generates a determination result according to the first maximum correlation result, the first neighboring power, the second maximum correlation result and the second neighboring power to indicate existence of interferences.Type: ApplicationFiled: May 27, 2010Publication date: December 30, 2010Applicant: MStar Semiconductor, Inc.Inventors: Kai-Wen Cheng, Ko-Yin Lai, Yi-Ying Liao, Tai-Lai Tung
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Patent number: 7860178Abstract: A guard section length detection method is disclosed. In the method, a guard section length detection method is used in an OFDM system. The OFDM symbol includes a data interval having a first length, and a guard section having a guard section length. The method detects a first symbol boundary and a second symbol boundary, and determines the guard section length based on a length between the first symbol boundary and the second symbol boundary.Type: GrantFiled: August 17, 2007Date of Patent: December 28, 2010Assignee: Industrial Technology Research InstituteInventors: Chun-Chun Kuo, Chin-Hung Chen, Chao-Kai Wen, Pang-An Ting
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Patent number: 7852804Abstract: The invention provides a communication apparatus switching method. At first, the method of the invention measures at least one environmental parameter relative to a neighboring region of a mobile communication apparatus and then determines whether the mobile communication apparatus is indoors, based on the at least one environmental parameter. If YES, the following steps are executed. Firstly, the method establishes a wireless communication link between the mobile communication apparatus and an agent communication apparatus based on a wireless communication protocol. Then, the method sends a piece of user information to the agent communication apparatus. Afterward, the method terminates a first radio telecommunication link between the mobile communication apparatus and the base station. Finally, the method establishes a second radio telecommunication link between the agent communication apparatus and the base station based on a radio telecommunication protocol.Type: GrantFiled: November 20, 2007Date of Patent: December 14, 2010Assignee: Quanta Computer, Inc.Inventor: Kai-Wen Tien