Patents by Inventor Cheng-Yu Wu
Cheng-Yu Wu 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: 8275024Abstract: A cable modem includes an amplifier, a power module, a switch circuit, a monitor signal, a duplexer and a RF matching circuit. The switch includes a PMOS transistor and a first electronic switch. The RF matching circuit included a second electronic switch and an electronic matching device. The monitoring signal source is configured for outputting a control signal. When the monitoring signal source stops outputting the control signal, both the first electronic switch and the PMOS transistor are turned off to cut off the power to the amplifier, the second electronic switch is turned on, and conducts the RF signal received by the signal receiving/transmitting circuit to the duplexer which further conducts the RF signal to the radio frequency matching circuit.Type: GrantFiled: December 28, 2009Date of Patent: September 25, 2012Assignees: Ambit Microsystems (Shanghai) Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Liang Zhang, Cheng-Yu Wu
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Publication number: 20120194346Abstract: A driving assistant method for an electric vehicle is provided with the following steps. When the electric vehicle is started up, a battery energy safe driving region is calculated and displayed. The battery energy safe driving region is updated dynamically according to vehicle information. The vehicle information includes battery information of the electric vehicle.Type: ApplicationFiled: April 8, 2011Publication date: August 2, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: I-Ta Tsai, Yu-Hui Lin, Cheng-Yu Wu, Yi-Chun Lin, Channing Chang
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Publication number: 20120135676Abstract: A system has a plurality of agents with each of a plurality of road side units (RSUs) having at least an agent of the plurality of agents being deployed to deploy and manage interactive regional broadcast services. Each agent includes a RSU receiving/transmitting device to receive at least a service deployment message and broadcast at least a service tracking request, and a storage device to maintain a service table recording at least a service that currently performs broadcasting service content on a corresponding RSU and a service-related topology table recording at least a RSU in a neighborhood of the corresponding RSU when an interactive regional service broadcasting being performed. A processor in the agent may perform interactive regional service deployment, interactive regional service termination and interactive regional service tracking, manage and accomplish at least a broadcast service through the corresponding RSU and the two tables.Type: ApplicationFiled: November 26, 2010Publication date: May 31, 2012Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Cheng-Yu Wu, Channing Chang, Adam Feng
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Patent number: 7978908Abstract: A color signal interpolation system and method, which performs a green sample interpolation on a signal with a cross color sample. The method includes: (A) providing neighboring color samples on an interpolation sample; (B) computing a luminance respectively of the interpolation sample and the neighboring color samples; (C) computing an edge value of the interpolation sample based on the luminance computed; (D) determining if the edge value is smaller than a predetermined threshold; (E) computing an average of the neighboring color samples that have the same color with the interpolation sample when the edge value is smaller than the predetermined threshold, and using the average as a first color output of the interpolation sample.Type: GrantFiled: February 2, 2006Date of Patent: July 12, 2011Assignee: Sunplus Technology Co., Ltd.Inventor: Cheng-Yu Wu
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Publication number: 20110103441Abstract: A cable modem includes an amplifier, a power module, a switch circuit, a monitor signal, a duplexer and a RF matching circuit. The switch includes a PMOS transistor and a first electronic switch. The RF matching circuit included a second electronic switch and an electronic matching device. The monitoring signal source is configured for outputting a control signal. When the monitoring signal source stops outputting the control signal, both the first electronic switch and the PMOS transistor are turned off to cut off the power to the amplifier, the second electronic switch is turned on, and conducts the RF signal received by the signal receiving/transmitting circuit to the duplexer which further conducts the RF signal to the radio frequency matching circuit.Type: ApplicationFiled: December 28, 2009Publication date: May 5, 2011Applicants: AMBIT MICROSYSTEMS (SHANGHAI) LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: LIANG ZHANG, CHENG-YU WU
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Patent number: 7925478Abstract: A method for automatically designing a buffer packing size and a computer accessible storage media to store program thereof are provided. First, a buffer thickness of a buffer material is calculated, and a buffer area for a surface of the object receiving an impact is calculated according to a weight of an object and a static stress of the buffer material. Next, a suitable buffer packing size is automatically calculated according to the buffer thickness and the buffer area.Type: GrantFiled: February 16, 2007Date of Patent: April 12, 2011Assignee: Inventec CorporationInventors: Cheng-Yu Wu, Ting-Chuan Chang, Chih-Chen Lo, Jia-Li Wang
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Publication number: 20100271145Abstract: A crystal oscillator circuit is connected between first and second oscillator pins of a chip and provides clock signals for the chip. The crystal oscillator circuit comprises a crystal, a first capacitor, a second capacitor and a third capacitor. The first capacitor is connected between the first and second oscillator pins of the chip. The second capacitor is connected between the first oscillator pin and ground. The third capacitor comprises one end connected to the second oscillator pin of the chip, and the other end grounded by way of the crystal.Type: ApplicationFiled: July 21, 2009Publication date: October 28, 2010Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: CHENG-YU WU
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Patent number: 7746062Abstract: A radio frequency (RF) testing system (100) includes a RF signal source (10) generating RF signals, an antenna (50), a RF testing circuit (40) disposed on a printed circuit board (PCB) (41), a testing probe (20) for receiving the RF signal from the RF testing circuit, and a testing apparatus (30) for testing the RF signals from the testing probe. The RF testing circuit includes a first pad (42), a second pad (44), a transmission line (48), and at least one ground portion (49) parallel to the transmission line. A distance between a first region defined by the first pad and a second region defined by the second pad positioned between the first region and the antenna is equal to one-fourth of the wavelength. During testing, the testing probe is electrically connected to the first pad, and the second pad is electrically connected to ground of the PCB.Type: GrantFiled: August 3, 2008Date of Patent: June 29, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Cheng-Yu Wu, Tao Yan
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Patent number: 7740601Abstract: A notebook computer with low-frequency electrotherapy is provided. A low-frequency massage device including a pulse generator and massage pads is disposed in the mainframe of the notebook computer. The pulse generator is electrically coupled to a power supply of the mainframe, which supplies power for the pulse generator, and the massage pads are selectively connected to a low-frequency generator, such that while operating the notebook computer, a user attaches the massage pads on suitable parts of his/her body to enjoy the low frequency electrotherapy massage.Type: GrantFiled: February 26, 2007Date of Patent: June 22, 2010Assignee: Inventec CorporationInventor: Cheng-Yu Wu
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Publication number: 20100095001Abstract: A gateway service method applied in a gateway device of OSGi is provided. The method includes obtaining at least an identification information of at least a client device; communicating with at least a service supplier according to the identification information; obtaining at least an OSGi bundle corresponding to the client device and supplied by the service supplier; and processing the OSGi bundle to supply service to the client device.Type: ApplicationFiled: March 24, 2009Publication date: April 15, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Hsia-Hsin Li, Cheng-Yu Wu
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Patent number: 7659930Abstract: An edge enhancement method and apparatus for Bayer images are provided. The apparatus stores the raw Bayer image data into a line buffer. After having directly read the raw Bayer image data from the buffer, the apparatus computes luminance characteristic values, analyzes the edge characteristic and then outputs the edge characteristic values. According to the edge characteristic values, the edges in the raw Bayer image data are enhanced. The apparatus simplifies the processing complexity of the rear-stage circuit by directly enhancing the edges in the Bayer image, and is easily combined with the post image processing mechanism. Conventionally, the raw Bayer image is converted to the RGB image or the YUV image and then the edge enhancement operation is performed. The invention reduces the computing volume and memory size. Also, performing the edge enhancement operation in advance helps to identify the interpolation direction and ease the annoying noise.Type: GrantFiled: May 4, 2006Date of Patent: February 9, 2010Assignee: Sunplus Technology Co., Ltd.Inventor: Cheng-Yu Wu
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Patent number: 7609300Abstract: A method and system of eliminating color noises caused by an interpolation, which performs an interpolation on a Bayer image obtained by an image sensor to restore red, green and blue colors of each pixel. Interpolated image is converted into a chromatic domain in order to rapidly use chroma pixel values of a pixel previously processed to eliminate color noises to update the original chroma pixel values in a median filter with 3×3 area of 2D, thereby increasing the color noise filtering capability of the median filter, and a low-pass filter is used to further eliminate the uneven effect of clustered color noises filtered out by the median filter.Type: GrantFiled: April 24, 2006Date of Patent: October 27, 2009Assignee: Sunplus Technology Co., Ltd.Inventor: Cheng-Yu Wu
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Patent number: 7590301Abstract: A method and system for correcting defective pixels of a color image, which first performs an interpolation on a Bayer image captured by an image sensor to thus reconstruct red, green and blue (RGB) colors corresponding to each pixel and obtain an RGB image, then converts the RGB image from the RGB domain to a chroma domain, and finally uses neighboring pixel values to correct a respective defective pixel. Because a defective pixel can be distinct from the chroma domain easier than the RGB domain, it can accurately determine whether or not a pixel to be processed is defective.Type: GrantFiled: February 2, 2006Date of Patent: September 15, 2009Assignee: Sunplus Technology Co., Ltd.Inventor: Cheng-Yu Wu
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Publication number: 20090224786Abstract: A radio frequency (RF) testing system (100) includes a RF signal source (10) generating RF signals, an antenna (50), a RF testing circuit (40) disposed on a printed circuit board (PCB) (41), a testing probe (20) for receiving the RF signal from the RF testing circuit, and a testing apparatus (30) for testing the RF signals from the testing probe. The RF testing circuit includes a first pad (42), a second pad (44), a transmission line (48), and at least one ground portion (49) parallel to the transmission line. A distance between a first region defined by the first pad and a second region defined by the second pad positioned between the first region and the antenna is equal to one-fourth of the wavelength. During testing, the testing probe is electrically connected to the first pad, and the second pad is electrically connected to ground of the PCB.Type: ApplicationFiled: August 3, 2008Publication date: September 10, 2009Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHENG-YU WU, TAO YAN
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Patent number: 7535511Abstract: An automatic exposure control method and compensation apparatus are disclosed. It includes a coordinate system having sub-ranges with different corresponding exposure compensation values. It includes the setting of bright and dark regions threshold values and the calculation of the ratios of the pixel count in an image where the luminance of each pixel is higher than the bright area threshold value for obtaining a bright area ratio, and also includes the calculation of the ratio of the pixel count in an image where the luminance of each pixel is lower than the dark area threshold value for obtaining a dark area ratio. Afterwards, the image position in the coordinate system is determined. When the image position in the coordinate system is fallen inside one of the sub-ranges, the corresponding exposure compensation value of the sub-range where the image is located is given to compensate the exposure value of the image.Type: GrantFiled: June 14, 2006Date of Patent: May 19, 2009Assignee: Sunplus Technology Co, Ltd.Inventors: Cheng-Yu Wu, Zhe-Hong Lin, Hung-ren Chen
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Patent number: 7476106Abstract: A rotatable signal socket includes a fixing part, a connecting part, and a flexible printed circuit board (FPCB). The rotatable signal socket is assembled on a printed circuit board (PCB) of an electronic device for connecting a signal cable to the PCB. The fixing part is fixed on the PCB. One end of the connecting part is pivoted to the fixing part in order to rotate relative to the fixing part and the PCB. The signal cable is inserted into the other end of the connecting part. The FPCB extends from the fixing part to the connecting part, so as to electrically connect the PCB and the signal cable, thus providing a signal socket that is easy to be assembled and occupies little space.Type: GrantFiled: September 12, 2007Date of Patent: January 13, 2009Assignee: Inventec CorporationInventors: Cheng-Yu Wu, Cheng-Hsiang Chuang, Kun-Hui Lai, Hsieh-Chun Tseng
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Patent number: 7440015Abstract: A gamma correction method and system, which performs a gamma correction on an n-bit video signal to thus generate a gamma correction value. At first, a first primary index and a first sub-index are obtained by performing an index mapping on a value of the video signal. Next, a first gamma value is obtained by performing a table lookup on the first primary index and the first sub-index. Next, a second primary index and a second sub-index are obtained by performing the index mapping on the first gamma value. Next, multiple thresholds are obtained by performing the table lookup on the second primary index and the second sub-index. Finally, the value of the video signal and the multiple thresholds are compared to accordingly correct the first gamma value and generate the gamma correction value.Type: GrantFiled: December 7, 2005Date of Patent: October 21, 2008Assignee: Sunplus Technology Co., Ltd.Inventors: Li-Ming Chen, Cheng-Yu Wu
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Patent number: 7438333Abstract: A magnetic latch assembly includes a first body, a second body, and a magnetic block and a magnetic latch. The magnetic block is movably disposed on the first body; therefore, it can be selectively moved close to or far away a first opening of the first body. The magnetic latch is disposed on the second body corresponding to a second opening of the second body. In addition, two ends of the magnetic latch form a hook portion and a tip portion, respectively. When the first body is close up against the second body and the magnetic block is moved close to the first opening, the magnetic block and the tip portion repel each other due to magnetic force so as to drive the magnetic latch rotating, so that the hook portion is moved and passing through the second opening and the first opening and hooked against the first body.Type: GrantFiled: January 30, 2007Date of Patent: October 21, 2008Assignee: Inventec CorporationInventors: Cheng-Yu Wu, Yun-Tang Lin
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Publication number: 20080208086Abstract: A notebook computer with low-frequency electrotherapy is provided. A low-frequency massage device including a pulse generator and massage pads is disposed in the mainframe of the notebook computer. The pulse generator is electrically coupled to a power supply of the mainframe, which supplies power for the pulse generator, and the massage pads are selectively connected to a low-frequency generator, such that while operating the notebook computer, a user attaches the massage pads on suitable parts of his/her body to enjoy the low frequency electrotherapy massage.Type: ApplicationFiled: February 26, 2007Publication date: August 28, 2008Applicant: Inventec CorporationInventor: Cheng-Yu Wu
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Publication number: 20080179897Abstract: A magnetic latch assembly includes a first body, a second body, and a magnetic block and a magnetic latch. The magnetic block is movably disposed on the first body; therefore, it can be selectively moved close to or far away a first opening of the first body. The magnetic latch is disposed on the second body corresponding to a second opening of the second body. In addition, two ends of the magnetic latch form a hook portion and a tip portion, respectively. When the first body is close up against the second body and the magnetic block is moved close to the first opening, the magnetic block and the tip portion repel each other due to magnetic force so as to drive the magnetic latch rotating, so that the hook portion is moved and passing through the second opening and the first opening and hooked against the first body.Type: ApplicationFiled: January 30, 2007Publication date: July 31, 2008Inventors: Cheng-Yu Wu, Yun-Tang Lin