Patents by Inventor Feng Ouyang
Feng Ouyang 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).
-
Publication number: 20230265659Abstract: The present disclosure provides a new design for an injection molded roof panel with multiple improvements. The panel is made from PVC-like materials via injection molding with a large standard size. It comprises laterally and longitudinally sloped watercourses and arches. A tongue at the front connects to a vertically adjacent panel's rear upper interlocking member. Interlocks at the lateral ends of the panel connect one panel to another horizontally adjacent panel. Condensed water ridges underneath the panel drain condensation to the panel's front, where it is drained with angled weep holes on the tongue. The upper surface has a non-smooth low-noise texture to prevent slips/falls and reduce noise. The roof panel is secured onto roof sheathing with nail flanges with screw holes/bosses. The design achieves improved water drainage, increased installation security and speed, improved wind resistance, increased personnel safety, reduced noise, lighter weight, lower cost, and improved lifespan.Type: ApplicationFiled: February 20, 2022Publication date: August 24, 2023Inventor: Feng OUYANG
-
Patent number: 10352872Abstract: The present invention discloses a damage detection apparatus for a lock gate sill, including a support, a water storage tank, a water inlet barrel, a filter device, a water pump, and a control device, wherein a barrier is vertically disposed at the bottom of the water storage tank, multiple water discharge pipes are vertically disposed in the barrier, upper ends of the water discharge pipes are communicated with the water storage tank, the water discharge pipes have different heights, lower ports of the water discharge pipes together compose a truncated conical cavity, a camera is disposed at the bottom of the water storage tank in a sealed manner, and a lens of the camera is located in an upper part of the truncated conical cavity.Type: GrantFiled: November 18, 2016Date of Patent: July 16, 2019Assignee: Hohai UniversityInventors: Da Chen, Baodong Lou, Shuitao Gu, Feng Ouyang, Xingguo Feng, Lijun Hou
-
Patent number: 9977127Abstract: The present invention discloses a ship draught detection apparatus and its detection method. The ship draught detection apparatus includes two servo motors, a guide rail, a sonar detection device, a traction device, a locating device, and a control device. Compared with the provision of a series of sonar detection devices in the prior art, the provision of one sonar detection device reduces the cost and there is no mutual interference between adjacent sonars.Type: GrantFiled: November 18, 2016Date of Patent: May 22, 2018Assignee: HOHAI UniversityInventors: Da Chen, Baodong Lou, Shuitao Gu, Feng Ouyang, Lijun Hou, Ning Zhuang
-
Publication number: 20180011191Abstract: The present invention discloses a ship draught detection apparatus and its detection method. The ship draught detection apparatus includes two servo motors, a guide rail, a sonar detection device, a traction device, a locating device, and a control device. Compared with the provision of a series of sonar detection devices in the prior art, the provision of one sonar detection device reduces the cost and there is no mutual interference between adjacent sonars.Type: ApplicationFiled: November 18, 2016Publication date: January 11, 2018Applicant: HoHai UniversityInventors: Da Chen, Baodong Lou, Shuitao Gu, Feng Ouyang, Lijun Hou, Ning Zhuang
-
Publication number: 20180011030Abstract: The present invention discloses a damage detection apparatus for a lock gate sill, including a support, a water storage tank, a water inlet barrel, a filter device, a water pump, and a control device, wherein a barrier is vertically disposed at the bottom of the water storage tank, multiple water discharge pipes are vertically disposed in the barrier, upper ends of the water discharge pipes are communicated with the water storage tank, the water discharge pipes have different heights, lower ports of the water discharge pipes together compose a truncated conical cavity, a camera is disposed at the bottom of the water storage tank in a sealed manner, and a lens of the camera is located in an upper part of the truncated conical cavity.Type: ApplicationFiled: November 18, 2016Publication date: January 11, 2018Applicant: HoHai UniversityInventors: Da Chen, Baodong Lou, Shuitao Gu, Feng Ouyang, Xingguo Feng, Lijun Hou
-
Patent number: 9861140Abstract: The disclosure relates to an electronic cigarette atomizer with a convenient-to-mount heating wire, which includes an oil storage atomization main body, a suction nozzle and a base. The base is provided with the heating wire and a heating wire fixing seat. More than two mounting holes are formed in an outer lateral surface of the heating wire fixing seat, more than two clamping blocks capable of moving up and down are arranged therein, and the clamping blocks are connected with the mounting holes in a one-to-one correspondence manner. Two ends of the heating wire are inserted into the mounting holes in the one-to-one correspondence manner, and are clamped and fixed under action of the clamping blocks. The electronic cigarette atomizer is simple and ingenious in structure, easy to product and machine and favorable for batch production.Type: GrantFiled: May 16, 2016Date of Patent: January 9, 2018Assignees: ZHUHAU YOUDE TECHNOLOGY CO., LTD.Inventors: Litao Wang, Feng Ouyang, Yiyu Cheng
-
Publication number: 20170280770Abstract: The disclosure relates to an electronic cigarette atomizer with a convenient-to-mount heating wire, which includes an oil storage atomization main body, a suction nozzle and a base. The base is provided with the heating wire and a heating wire fixing seat. More than two mounting holes are formed in an outer lateral surface of the heating wire fixing seat, more than two clamping blocks capable of moving up and down are arranged therein, and the clamping blocks are connected with the mounting holes in a one-to-one correspondence manner. Two ends of the heating wire are inserted into the mounting holes in the one-to-one correspondence manner, and are clamped and fixed under action of the clamping blocks. The electronic cigarette atomizer is simple and ingenious in structure, easy to product and machine and favorable for batch production.Type: ApplicationFiled: May 16, 2016Publication date: October 5, 2017Inventors: Litao Wang, Feng Ouyang, Yiyu Cheng
-
Publication number: 20120147104Abstract: A cartridge for inkjet printer includes housing and an ink storage tank defined inside the housing. An ink outlet is defined in the bottom portion of the housing, while an air inlet and ink inlet are formed on the top portion of the housing. All of the ink outlet, air inlet and ink inlet are communicated with the ink storage tank. A filtration chamber is defined in the ink storage tank. A filtration core is provided in the filtration chamber. The chamber is communicated with a flow guiding slot disposed at one side of the ink storage tank through a filtration hole. The other end of the flow guiding slot is communicated with the ink outlet. Advantageously, bubbles genreated during operation of the cartridge can be stored in the bubble chamber of the housing, thus eliminating bad effect of the bubbles on the normal flow of the ink out of the ink outlet.Type: ApplicationFiled: December 23, 2009Publication date: June 14, 2012Inventors: Feng Ouyang, Jiedong Zheng
-
Patent number: 7974583Abstract: A technique for real-time formation of optimal power spectral density masks is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for real-time formation of optimal power spectral density masks. The method may comprise sensing line conditions in a communication medium, wherein the communication medium is capable of carrying signals in a plurality of tones. The method may also comprise determining, in real-time, one or more power spectral density masks that substantially optimize transmissions of the signals in the plurality of tones. The method may further comprise transmitting the signals in the plurality of tones based on the one or more power spectral masks.Type: GrantFiled: January 10, 2005Date of Patent: July 5, 2011Assignee: Ikanos Communications, Inc.Inventors: Patrick Duvaut, Feng Ouyang
-
Patent number: 7580379Abstract: A technique for dynamic bin allocation is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for dynamic bin allocation. The method may comprise obtaining link performance data based on a plurality of test transmissions between two network elements, wherein the plurality of test transmissions utilize at least one transmission mode in each of a plurality of frequency ranges. The method may also comprise determining a desired transmission scheme, wherein each of the plurality of frequency ranges is designated for at least one of the at least one transmission mode based at least in part on the link performance data. The desired transmission scheme may be determined by identifying a desired transmission mode for each of the plurality of frequency ranges, or the desired transmission scheme may be selected from a plurality of predetermined transmission schemes.Type: GrantFiled: April 15, 2004Date of Patent: August 25, 2009Assignee: Conexant, Inc.Inventors: Feng Ouyang, Patrick Duvaut, Chengshu Wang
-
Patent number: 7460649Abstract: A method and apparatus for single end loop testing for DSL provisioning and maintenance provides testing of the DSL loop using digital techniques including frequency compensation, matched filtering and median filtering, to remove strong background and enhance desired signal for peak detection. The SELT system allows DSL providers to extract loop information from reflective measurements at the central office (CO) so as to determine loop capability of supporting different DSL services. The method and apparatus acquires the desired signal (the far-end echo) which is submerged in the correlated background noise (the near-end echo) by providing a process for detecting loop length and termination types with high accuracy for loops up to 12 kft for 24 AWG and up to 9 kft for 26 AWG by exploiting several digital signal processing techniques including frequency.Type: GrantFiled: January 14, 2005Date of Patent: December 2, 2008Assignee: Conexant Systems, Inc.Inventors: Feng Ouyang, Patrick Duvaut, Ming Gu
-
Patent number: 7406126Abstract: Various embodiments for addressing the performance objectives of LDSL and examples of smart systems for LDSL are disclosed. An evaluation of the spectral compatibility of two LDSL modes based on two different downstream masks, identified herein as LDSL Wide and Narrow, is disclosed. Spectral compatibility is evaluated in accordance with existing rules. Other embodiments may further comprise determining features of upstream transmission.Type: GrantFiled: November 18, 2003Date of Patent: July 29, 2008Assignee: Brooktree Broadband Holding, Inc.Inventors: Patrick Duvaut, Ehud Langberg, Lujing Cai, Laurent Pierrugues, William Scholtz, Oliver Moreno, Feng Ouyang, Massimo Sorbara
-
Publication number: 20080089485Abstract: Systems and methods for performing single-end line testing (SELT) are described. At least one embodiment includes a method for SELT to determine loop characteristics for a loop. The method for performing SELT comprises generating a test signal through a loop to be tested and receiving an echo response. The method further comprises subtracting predetermined near end echo response from the received echo to derive a far end echo response, performing time-dependent scaling on the far end echo response to compensate for loop attenuation, comparing the time-scaled far end echo response to a set of predefined templates, and providing an estimate of loop characteristics by identifying a matching template within the set of predefined templates, wherein the matching template contains information relating to loop characteristics comprising loop length and loop termination.Type: ApplicationFiled: October 2, 2007Publication date: April 17, 2008Applicant: CONEXANT SYSTEMS, INC.Inventors: Patrick Duvaut, Amitkumar Mahadevan, Feng Ouyang
-
Publication number: 20060200303Abstract: The static or dynamic roadway travel time system determines the path with least travel time 26, 28 between two places by using user input 8 and traffic data input 14 in the form of volume and occupancy, or speed, or travel time to inform a user of the roadway network path that yields the least travel time 26, 28.Type: ApplicationFiled: February 24, 2006Publication date: September 7, 2006Inventors: Jorge Fuentes, Raymond Moberly, Yuan Feng Ouyang
-
Patent number: 7031414Abstract: A method and apparatus for mitigating for inter-symbol interference in a communication system using a multi-rate adaptive decision feedback equalizer (DFE) with a feedforward filter which is a combination of a first feedforward filter (FF1) that performs match filtering and a second feedforward filter (FF2) which runs at a lower sampling rate than first feedforward filter (FF1), thereby, reducing the total the number of computation done at the receiver, and removes ISI and white noise. The present invention also employs a method and apparatus where the initial training is done separately for the first feedforward filter (FF1) and the second feedforward filter (FF2). An approximate solution of the optimal receiver has the first feedforward filter (FF1) maximize the output signal to noise ratio (SNR) which is used to train first feedforward filter (FF1).Type: GrantFiled: December 19, 2002Date of Patent: April 18, 2006Assignee: Globespan Virata Inc.Inventor: Feng Ouyang
-
Publication number: 20050232172Abstract: A technique for dynamic bin allocation is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for dynamic bin allocation. The method may comprise obtaining link performance data based on a plurality of test transmissions between two network elements, wherein the plurality of test transmissions utilize at least one transmission mode in each of a plurality of frequency ranges. The method may also comprise determining a desired transmission scheme, wherein each of the plurality of frequency ranges is designated for at least one of the at least one transmission mode based at least in part on the link performance data. The desired transmission scheme may be determined by identifying a desired transmission mode for each of the plurality of frequency ranges, or the desired transmission scheme may be selected from a plurality of predetermined transmission schemes.Type: ApplicationFiled: April 15, 2004Publication date: October 20, 2005Inventors: Feng Ouyang, Patrick Duvaut, Chengshu Wang
-
Publication number: 20050163287Abstract: A method and apparatus for single end loop testing for DSL provisioning and maintenance provides testing of the DSL loop using digital techniques including frequency compensation, matched filtering and median filtering, to remove strong background and enhance desired signal for peak detection. The SELT system allows DSL providers to extract loop information from reflective measurements at the central office (CO) so as to determine loop capability of supporting different DSL services. The method and apparatus acquires the desired signal (the far-end echo) which is submerged in the correlated background noise (the near-end echo) by providing a process for detecting loop length and termination types with high accuracy for loops up to 12 kft for 24 AWG and up to 9 kft for 26 AWG by exploiting several digital signal processing techniques including frequency.Type: ApplicationFiled: January 14, 2005Publication date: July 28, 2005Inventors: Feng Ouyang, Patrick Duvaut, Ming Gu
-
Publication number: 20050152442Abstract: A technique for real-time formation of optimal power spectral density masks is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for real- time formation of optimal power spectral density masks. The method may comprise sensing line conditions in a communication medium, wherein the communication medium is capable of carrying signals in a plurality of tones. The method may also comprise determining, in real-time, one or more power spectral density masks that substantially optimize transmissions of the signals in the plurality of tones. The method may further comprise transmitting the signals in the plurality of tones based on the one or more power spectral masks.Type: ApplicationFiled: January 10, 2005Publication date: July 14, 2005Applicant: Conexant Systems, Inc.Inventors: Patrick Duvaut, Feng Ouyang
-
Publication number: 20040202239Abstract: An evaluation of the spectral compatibility of two LDSL modes based on two different downstream masks, identified herein as LDSL Wide and Narrow, is disclosed. Spectral compatibility is evaluated in accordance with existing rules.Type: ApplicationFiled: November 18, 2003Publication date: October 14, 2004Applicant: Globespan Virata IncorporatedInventors: Patrick Duvaut, Ehud Langberg, Lujing Cai, Laurent Pierrugues, William Scholtz, Oliver Moreno, Feng Ouyang
-
Publication number: 20030179622Abstract: This invention provides approaches for dual-modulation tuning in systems that exhibit self-disturbance. In one embodiment, a dual-bit-mapping scheme is used so that system parameters are set according to one bit-mapping scheme when self-disturbance is present and to another bit-mapping scheme when self-disturbance is not present in the system. Self-disturbance may include signals that arise from echoes or near-end cross-talk (NEXT).Type: ApplicationFiled: February 21, 2003Publication date: September 25, 2003Inventors: Ehud Langberg, Peter Kleewein, WingIp Tam, Feng Ouyang, Laurent Pierrugues, Oliver Moreno, Patrick Duvaut