Patents by Inventor Chun-Fu Wang
Chun-Fu Wang 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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Publication number: 20130142375Abstract: A headphone having a headband and two acoustic transducers disposed at two ends of the headband is disclosed. Each acoustic transducer includes a baffle plate installed with a speaker, a spacer, a vent and an acoustic modulator. The baffle plate and speaker divide the acoustic transducer into a front and a back chamber. The front chamber is configured for communicating with a user's ear. The spacer is disposed behind the speaker to divide the back chamber into a first back chamber and a second back communicated with each other. The vent is disposed in a back wall of the acoustic transducer to communicate the first back chamber with outside. The first acoustic modulator is disposed between the front and second back chambers. The headphone modulates resonance frequency at low frequency bands through the acoustic modulator.Type: ApplicationFiled: December 2, 2011Publication date: June 6, 2013Applicant: Merry Electronics Co., Ltd.Inventors: Po-Hsun Sung, Chun-Fu Wang, Hung-Wen Tsao
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Patent number: 8447058Abstract: A headphone having a headband and two acoustic transducers disposed at two ends of the headband is disclosed. Each acoustic transducer includes a baffle plate installed with a speaker, a spacer, a vent and an acoustic modulator. The baffle plate and speaker divide the acoustic transducer into a front and a back chamber. The front chamber is configured for communicating with a user's ear. The spacer is disposed behind the speaker to divide the back chamber into a first back chamber and a second back communicated with each other. The vent is disposed in a back wall of the acoustic transducer to communicate the first back chamber with outside. The first acoustic modulator is disposed between the front and second back chambers. The headphone modulates resonance frequency at low frequency bands through the acoustic modulator.Type: GrantFiled: December 2, 2011Date of Patent: May 21, 2013Assignee: Merry Electronics Co., Ltd.Inventors: Po-Hsun Sung, Chun-Fu Wang, Hung-Wen Tsao
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Publication number: 20130050159Abstract: A gate driver and a display device are disclosed. The gate driver includes an image data receiving interface, an image processing unit, a timing controller, and a gate driving unit. The image data receiving interface receives an input signal and transfers the same to a display image signal and a display control signal. The image processing unit receives the display image signal and transfers the same to a display data. The timing controller transfers the display control signal into a first and second control signals. The first control signal and the display data are output to a source driver. The gate driving unit receives the second control signal to drive gate scanning lines accordingly, and the gate driving unit sequentially drives the gate scanning lines according to the second control signal. The source driver supplies the display data to pixels according to the first control signal.Type: ApplicationFiled: June 14, 2012Publication date: February 28, 2013Applicant: ORISE TECHNOLOGY CO., LTD.Inventor: Chun-Fu Wang
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Patent number: 8175106Abstract: The present invention applies management frame defined in IEEE 802.11 standard to a wireless distribution system (WDS) mode by adding an information element (IE) into the management frame, which enables any access point (AP) in WDS to maintain IE based on its own setting and state, then send IE via the management frame for providing state of the AP under WDS mode, determine whether a physical link (i.e., a wireless link between APs) should be established therewith based on received IE, and maintain the established physical link through the wireless management frame in a real time manner. Thus, the existence and necessity of the physical link between different APs in WDS can be determined correctly.Type: GrantFiled: May 4, 2010Date of Patent: May 8, 2012Assignee: Alpha Networks Inc.Inventors: Ming-Wang Guo, Jen-Sheng Huang, Chun-Fu Wang, Ying-Yung Chen, Shang-I Huang, Yao-Chang Hsieh, Yi-Hsien Cho
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Publication number: 20100214961Abstract: The present invention applies management frame defined in IEEE 802.11 standard to a wireless distribution system (WDS) mode by adding an information element (IE) into the management frame, which enables any access point (AP) in WDS to maintain IE based on its own setting and state, then send IE via the management frame for providing state of the AP under WDS mode, determine whether a physical link (i.e., a wireless link between APs) should be established therewith based on received IE, and maintain the established physical link through the wireless management frame in a real time manner. Thus, the existence and necessity of the physical link between different APs in WDS can be determined correctly.Type: ApplicationFiled: May 4, 2010Publication date: August 26, 2010Applicant: ALPHA NETWORKS INC.Inventors: Ming-Wang GUO, Jen-Sheng Huang, Chun-Fu Wang, Ying-Yung Chen, Shang-I Huang, Yao-Chang Hsieh, Yi-Hsien Cho
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Patent number: 7755569Abstract: A method is provided. The method includes displaying a first image pixel on a first display pixel of a plurality of display pixels of a monitor, and displaying a second image pixel following the first image pixel on a portion of sub-pixels of the first display pixel and a portion of sub-pixels of a second display pixel so as to avoid loss of image data when displaying the image pixels on a monitor of a small resolution.Type: GrantFiled: May 5, 2006Date of Patent: July 13, 2010Assignees: Chi Mei El Corporation, Chimei Innolux CorporationInventors: Chun-Fu Wang, Min-Nan Hsieh
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Patent number: 7738470Abstract: The present invention applies management frame defined in IEEE 802.11 standard to a wireless distribution system (WDS) mode by adding an information element (IE) into the management frame, which enables any access point (AP) in WDS to maintain IE based on its own setting and state, then send IE via the management frame for providing state of the AP under WDS mode, determine whether a physical link (i.e., a wireless link between APs) should be established therewith based on received IE, and maintain the established physical link through the wireless management frame in a real time manner. Thus, the existence and necessity of the physical link between different APs in WDS can be determined correctly.Type: GrantFiled: May 23, 2005Date of Patent: June 15, 2010Assignee: Alpha Networks Inc.Inventors: Ming-Wang Guo, Jen-Sheng Huang, Chun-Fu Wang, Ying-Yung Chen, Shang-I Huang, Yao-Chang Hsieh, Yi-Hsien Cho
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Patent number: 7643021Abstract: A driving system and a driving method for motion pictures are described, using an input, a black image insertion module, an advanced overdrive module, and a partial frame rate control module. The input receives a first frame and a second frame in order. The black image insertion module inserts a single fixed gray level frame between the first frame and the second frame. The advanced overdrive module increases the second frame to (n+a) bits and converts the same to the overdrive image, in which the first frame and the second frame are n bits. The partial frame rate control module smoothes the overdrive image and converts the same to an output image to refresh the pixels from the single fixed gray level frame to the second frame.Type: GrantFiled: December 16, 2004Date of Patent: January 5, 2010Assignee: Hannstar Display CorporationInventors: Feng-Ting Pai, Chun-Fu Wang
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Publication number: 20090279314Abstract: A heat dissipating device with protection function is used for assembling around a heat generation element. The heat dissipating device includes a plurality of heat dissipating fins. The heat dissipating fins have a circular array with each heat dissipating fin connecting to another. A receiving space is defined in a central position of the heat dissipating fins for positioning the heat generating element. Each heat dissipating fin includes a laminated body. The laminated body includes an inner lateral edge and an outer lateral edge opposite to the inner lateral edge. A flange is backwardly formed on a section of the outer lateral edge. A user can avoid to be cut by the flange when disassembling the heat dissipating device.Type: ApplicationFiled: May 6, 2008Publication date: November 12, 2009Inventors: Chung WU, Chun-Fu Wang, Zu-Chao Hsu
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Publication number: 20080277653Abstract: In a semiconductor element, and a display pixel and a display panel using the same, the semiconductor element includes a first electrode, a second electrode, an organic light-emitting layer and a third electrode. The second electrode and the first electrode are disposed separately. The organic light-emitting layer is electrically connected with the first electrode and the second electrode. The third electrode is disposed above the organic light-emitting layer.Type: ApplicationFiled: May 8, 2008Publication date: November 13, 2008Inventor: Chun-Fu Wang
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Patent number: 7362723Abstract: The present invention is to provide a wireless routing mechanism by applying a management frame defined in IEEE 802.11 standard to different access points (AP) in a wireless distribution system (WDS) and adding an information element (IE) to the management frame, enabling any AP to be capable of maintaining the integrity of IE based on its own setting and state, determining other APs' operations in WDS based on a received IE and determining whether a physical link (i.e., wireless link) between itself and any of other APs should be established to provide a channel for sending data frames therebetween and automatically establishing a stable, flexible and expansible wireless network topology in a wire network infrastructure based on information contained in a plurality of fields of the IE.Type: GrantFiled: August 8, 2005Date of Patent: April 22, 2008Assignee: Alpha Networks Inc.Inventors: Ming-Wang Guo, Jen-Sheng Huang, Chun-Fu Wang
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Patent number: 7222559Abstract: A screwdriver comprises a torque setting mechanism including a torque adjustment ring, an actuation rod threadedly secured to the upper torque adjustment ring and a lower torque adjustment nut, a spring biased sleeve with the actuation rod passed, and a clutch ring snugly put on two opposing intermediate flats of the actuation rod and having an upper surface engaged the torque adjustment ring and a lower surface formed with recesses engaged with steel balls on an upper surface of a support ring in the sleeve. Turning a rotatable handle will turn the sleeve. The clutch ring will disengage with the steel balls if the torque exceeds a set value. Thus, the torque exerted on the handle will not transmit to a shank secured to the actuation rod so as to prevent a screw from being over-driven by the shank.Type: GrantFiled: August 16, 2005Date of Patent: May 29, 2007Inventor: Chun Fu Wang
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Publication number: 20070045549Abstract: A method is provided. The method includes displaying a first image pixel on a first display pixel of a plurality of display pixels of a monitor, and displaying a second image pixel following the first image pixel on a portion of sub-pixels of the first display pixel and a portion of sub-pixels of a second display pixel so as to avoid loss of image data when displaying the image pixels on a monitor of a small resolution.Type: ApplicationFiled: May 5, 2006Publication date: March 1, 2007Inventors: Chun-Fu Wang, Min-Nan Hsieh
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Publication number: 20070030823Abstract: The present invention is to provide a wireless routing mechanism by applying a management frame defined in IEEE 802.11 standard to different access points (AP) in a wireless distribution system (WDS) and adding an information element (IE) to the management frame, enabling any AP to be capable of maintaining the integrity of IE based on its own setting and state, determining other APs' operations in WDS based on a received IE and determining whether a physical link (i.e., wireless link) between itself and any of other APs should be established to provide a channel for sending data frames therebetween and automatically establishing a stable, flexible and expansible wireless network topology in a wire network infrastructure based on information contained in a plurality of fields of the IE.Type: ApplicationFiled: August 8, 2005Publication date: February 8, 2007Applicant: Alpha Networks Inc.Inventors: Ming-Wang Guo, Jen-Sheng Huang, Chun-Fu Wang
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Publication number: 20060262733Abstract: The present invention applies management frame defined in IEEE 802.11 standard to a wireless distribution system (WDS) mode by adding an information element (IE) into the management frame, which enables any access point (AP) in WDS to maintain IE based on its own setting and state, then send IE via the management frame for providing state of the AP under WDS mode, determine whether a physical link (i.e., a wireless link between APs) should be established therewith based on received IE, and maintain the established physical link through the wireless management frame in a real time manner. Thus, the existence and necessity of the physical link between different APs in WDS can be determined correctly.Type: ApplicationFiled: May 23, 2005Publication date: November 23, 2006Applicant: Alpha Networks Inc.Inventors: Ming-Wang Guo, Jen-Sheng Huang, Chun-Fu Wang, Ying-Yung Chen, Shang-I Huang, Yao-Chang Hsieh, Yi-Hsien Cho
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Publication number: 20060244740Abstract: A method for driving a dual-scan mode display is disclosed. The dual-scan mode display includes a first driver IC and a second driver IC, and the method includes: utilizing the first driver IC to output a first signal according to a gray value to drive a first pixel to generate a first luminance value; utilizing the second driver IC to output a second signal according to the gray value to drive a second pixel to generate a second luminance value; and adjusting the first signal according to the first luminance value and the second luminance value to drive the first pixel to generate a third luminance value; wherein a difference between the third luminance value and the second luminance value is less than a threshold value.Type: ApplicationFiled: February 27, 2006Publication date: November 2, 2006Inventor: Chun-Fu Wang
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Patent number: 7079065Abstract: The present invention describes a circuit and driving method for a digital-to-analog converter to convert an (m+n) bits digital signal to an analog signal. First, the (m+n) bits digital signal is separated into a first set of m first bits and a second set of n second bits. Then, according to the first set of m first bits, a reference voltage range is determined from a plurality of reference voltages. Finally, according to the second set of n second bits, a voltage is determined from the reference voltage range.Type: GrantFiled: February 3, 2005Date of Patent: July 18, 2006Assignee: Hannstar Display CorporationInventors: Chun-Fu Wang, Feng-Ting Pai
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Publication number: 20060012502Abstract: The present invention describes a circuit and driving method for a digital-to-analog converter to convert an (m+n) bits digital signal to an analog signal. First, the (m+n) bits digital signal is separated into a first set of m first bits and a second set of n second bits. Then, according to the first set of m first bits, a reference voltage range is determined from a plurality of reference voltages. Finally, according to the second set of n second bits, a voltage is determined from the reference voltage range.Type: ApplicationFiled: February 3, 2005Publication date: January 19, 2006Inventors: Chun-Fu Wang, Feng-Ting Pai
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Publication number: 20050275646Abstract: A driving system and a driving method for motion pictures are described, using an input, a black image insertion module, an advanced overdrive module, and a partial frame rate control module. The input receives a first frame and a second frame in order. The black image insertion module inserts a single fixed gray level frame between the first frame and the second frame. The advanced overdrive module boosts the second frame to (n+a) bits and transfers the same to the overdrive image, in which the first frame and the second frame are n bits. The partial frame rate control module smoothes the overdrive image and transfers the same to an output image to refresh the pixels from the single fixed gray level frame to the second frame.Type: ApplicationFiled: December 16, 2004Publication date: December 15, 2005Inventors: Feng-Ting Pai, Chun-Fu Wang
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Publication number: 20050122827Abstract: This invention provides an active matrix display and a relevant driving method. The active matrix display includes a gate line driving circuit for generating a multiplexer controlling signal and plural gate line driving signals, a multiplexer, and a source line driving circuit having plural source line outputs in a horizontal direction. The multiplexer has a plurality of gate line outputs in a vertical direction and is electrically connected between the gate line driving circuit and the transistors of the display, wherein the gate line outputs are connected to the gate electrodes of the transistors, and the multiplexer is controlled by the multiplexer controlling signal and drives the gate line outputs in response to the gate line driving signals.Type: ApplicationFiled: August 20, 2004Publication date: June 9, 2005Applicant: Hannstar Display Corp.Inventor: Chun-Fu Wang