Patents by Inventor Wei-Min Zhang
Wei-Min Zhang 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: 11703477Abstract: A nondestructive testing method for detecting and distinguishing internal and external defects of a wire rope includes: acquiring a magnetic flux signal and a MFL signal of a detected wire rope; preprocessing the magnetic flux signal and the MFL signal of the detected wire rope; comparing a preprocessed magnetic flux signal and a preprocessed MFL signal with a preset magnetic flux signal threshold and a preset MFL signal threshold respectively, and calculating a defect position; extracting a magnetic flux signal of a defect and an MFL signal of the defect based on the defect position; calculating a defect width of the detected wire rope based on the magnetic flux signal of the defect and the MFL signal of the defect; calculating a defect cross-sectional area loss of the detected wire rope based on the defect width; and determining whether the defect is the internal defect or the external defect.Type: GrantFiled: March 17, 2021Date of Patent: July 18, 2023Assignee: HARBN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION)Inventors: Dong Lai Zhang, En Chao Zhang, Wei Gao, Xiao Lan Yan, Shi Min Pan
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Patent number: 9983258Abstract: A method for testing using an automated test equipment (ATE) is disclosed. The method comprises capturing a radio frequency (RF) signal using a digital port on automated test equipment, wherein the RF signal is transmitted from a device under test (DUT) to be tested by the automated test equipment. It also comprises sampling the RF signal at a high sampling rate using a digital channel associated with the digital port. Further, it comprises generating a discrete signal using results from the sampling. Finally, it comprises determining a frequency and amplitude of the RF signal using the discrete signal.Type: GrantFiled: March 14, 2013Date of Patent: May 29, 2018Inventor: Wei Min Zhang
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Patent number: 9350389Abstract: Error correction coding across multiple channels is provided in multi-channel transmission systems. Specifically, redundancy is provided by selecting a portion of original data from each of a plurality of original channels, performing at least one encoding operation using the portions of original data to produce at least one portion of redundancy data, including the portion of redundancy data in at least one redundancy channel, and transmitting the redundancy channel along with the original channels. Error correction is achieved by receiving at least one redundancy channel and a plurality of original channels, selecting a portion of redundancy data from the redundancy channel, selecting a portion of original data from each of the original channels, and performing at least one decoding operation using the portion of redundancy data and the portions of original data to correct at least one error in the portions of original data.Type: GrantFiled: July 2, 2013Date of Patent: May 24, 2016Assignee: Broadcom CorporationInventors: Wei-Min Zhang, Timothy A. Misko
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Publication number: 20150276855Abstract: A method for testing using an automated test equipment (ATE) is disclosed. The method comprises capturing a radio frequency (RF) signal using a digital port on automated test equipment, wherein the RF signal is transmitted from a device under test (DUT) to be tested by the automated test equipment. It also comprises sampling the RF signal at a high sampling rate using a digital channel associated with the digital port. Further, it comprises generating a discrete signal using results from the sampling. Finally, it comprises determining a frequency and amplitude of the RF signal using the discrete signal.Type: ApplicationFiled: March 14, 2013Publication date: October 1, 2015Inventor: Wei Min Zhang
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Patent number: 9145516Abstract: A method for preparing an inorganic nano-material is provided. The method includes steps of providing a first solution including plural metal ions; mixing the first solution with a surfactant and adding a reduction agent to generate a second solution, wherein the second solution generates plural metal atoms reduced from the plural metal ions; and adding an oxidation agent into the second solution for oxidizing the plural metal atoms so as to generate plural metal oxides and form the inorganic nano-material.Type: GrantFiled: July 22, 2011Date of Patent: September 29, 2015Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Yen Hsun Su, Shen-Lung Tu, Shih-Hui Chang, Wei-Min Zhang, Shih-Wen Tseng, Yun-Chorng Chang
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Publication number: 20130294225Abstract: Error correction coding across multiple channels is provided in multi-channel transmission systems. Specifically, redundancy is provided by selecting a portion of original data from each of a plurality of original channels, performing at least one encoding operation using the portions of original data to produce at least one portion of redundancy data, including the portion of redundancy data in at least one redundancy channel, and transmitting the redundancy channel along with the original channels. Error correction is achieved by receiving at least one redundancy channel and a plurality of original channels, selecting a portion of redundancy data from the redundancy channel, selecting a portion of original data from each of the original channels, and performing at least one decoding operation using the portion of redundancy data and the portions of original data to correct at least one error in the portions of original data.Type: ApplicationFiled: July 2, 2013Publication date: November 7, 2013Inventors: Wei-Min Zhang, Timothy A. Misko
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Publication number: 20120246761Abstract: A method for preparing an inorganic nano-material is provided. The method includes steps of providing a first solution including plural metal ions; mixing the first solution with a surfactant and adding a reduction agent to generate a second solution, wherein the second solution generates plural metal atoms reduced from the plural metal ions; and adding an oxidation agent into the second solution for oxidizing the plural metal atoms so as to generate plural metal oxides and form the inorganic nano-material.Type: ApplicationFiled: July 22, 2011Publication date: September 27, 2012Applicant: NATIONAL CHENG KUNG UNIVERSITYInventors: Yen-Hsun Su, Shen-Long Tu, Shih-Hui Chang, Wei-Min Zhang
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Patent number: 7746115Abstract: A programmable logic device (PLD) data transfer cable includes a parallel interface, a programming interface, and a logic control circuit. The parallel interface is used for connecting to PLDs. The logic control circuit includes a first group of transmission channels, a second group of transmission channels, a first group of switches, and a second group of switches. The first and second group of switches control the working status of the first and second group of transmission channels respectively. The electrical connections between pins of the parallel interface and the programming interface when first group of transmission channels are activated are different with those when second group of transmission channels are activated.Type: GrantFiled: September 8, 2008Date of Patent: June 29, 2010Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chung-Chi Huang, Guang-Dong Yuan, Jian-Chun Pan, De-Jun Zeng, Wei-Min Zhang
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Patent number: 7598627Abstract: A switch-mode power supply for selectively providing power from a main power source and a standby power source to an electronic device is provided. The switch-mode power supply includes a signal input, a first transistor, a second transistor, a driving circuit, and a switching circuit. The signal input is used for receiving a control signal. The driving circuit and switching circuit connect the signal input to the gate of the second transistor in series. When the driving circuit detects the first transistor is switched off, the gate of the second transistor is immediately pulled up to open the second transistor, and when the driving circuit detects the first transistor is switched on, the gate of the second transistor is immediately pulled down to close the second transistor.Type: GrantFiled: July 6, 2007Date of Patent: October 6, 2009Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chung-Chi Huang, Guang-Dong Yuan, Jian-Chun Pan, Wei-Min Zhang
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Publication number: 20090237112Abstract: A programmable logic device (PLD) data transfer cable includes a parallel interface, a programming interface, and a logic control circuit. The parallel interface is used for connecting to PLDs. The logic control circuit includes a first group of transmission channels, a second group of transmission channels, a first group of switches, and a second group of switches. The first and second group of switches control the working status of the first and second group of transmission channels respectively. The electrical connections between pins of the parallel interface and the programming interface when first group of transmission channels are activated are different with those when second group of transmission channels are activated.Type: ApplicationFiled: September 8, 2008Publication date: September 24, 2009Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD ., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHUNG-CHI HUANG, GUANG-DONG YUAN, JIAN-CHUN PAN, DE-JUN ZENG, WEI-MIN ZHANG
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Publication number: 20080150362Abstract: A switch-mode power supply for selectively providing power from a main power source and a standby power source to an electronic device is provided. The switch-mode power supply includes a signal input, a first transistor, a second transistor, a driving circuit, and a switching circuit. The signal input is used for receiving a control signal. The driving circuit and switching circuit connect the signal input to the gate of the second transistor in series. When the driving circuit detects the first transistor is switched off, the gate of the second transistor is immediately pulled up to open the second transistor, and when the driving circuit detects the first transistor is switched on, the gate of the second transistor is immediately pulled down to close the second transistor.Type: ApplicationFiled: July 6, 2007Publication date: June 26, 2008Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Chung-Chi Huang, Guang-Dong Yuan, Jian-Chun Pan, Wei-Min Zhang
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Publication number: 20060156185Abstract: Error correction coding across multiple channels is provided in multi-channel transmission systems. Specifically, redundancy is provided by selecting a portion of original data from each of a plurality of original channels, performing at least one encoding operation using the portions of original data to produce at least one portion of redundancy data, including the portion of redundancy data in at least one redundancy channel, and transmitting the redundancy channel along with the original channels. Error correction is achieved by receiving at least one redundancy channel and a plurality of original channels, selecting a portion of redundancy data from the redundancy channel, selecting a portion of original data from each of the original channels, and performing at least one decoding operation using the portion of redundancy data and the portions of original data to correct at least one error in the portions of original data.Type: ApplicationFiled: December 14, 2005Publication date: July 13, 2006Applicant: Broadlogic Network Technologies, Inc.Inventors: Wei-Min Zhang, Timothy Misko
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Patent number: 7007220Abstract: Error correction coding across multiple channels is provided in multi-channel transmission systems. Specifically, redundancy is provided by selecting a portion of original data from each of a plurality of original channels, performing at least one encoding operation using the portions of original data to produce at least one portion of redundancy data, including the portion of redundancy data in at least one redundancy channel, and transmitting the redundancy channel along with the original channels. Error correction is achieved by receiving at least one redundancy channel and a plurality of original channels, selecting a portion of redundancy data from the redundancy channel, selecting a portion of original data from each of the original channels, and performing at least one decoding operation using the portion of redundancy data and the portions of original data to correct at least one error in the portions of original data.Type: GrantFiled: March 1, 2002Date of Patent: February 28, 2006Assignee: Broadlogic Network Technologies, Inc.Inventors: Wei-Min Zhang, Timothy A. Misko
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Publication number: 20030167432Abstract: Error correction coding across multiple channels is provided in multi-channel transmission systems. Specifically, redundancy is provided by selecting a portion of original data from each of a plurality of original channels, performing at least one encoding operation using the portions of original data to produce at least one portion of redundancy data, including the portion of redundancy data in at least one redundancy channel, and transmitting the redundancy channel along with the original channels. Error correction is achieved by receiving at least one redundancy channel and a plurality of original channels, selecting a portion of redundancy data from the redundancy channel, selecting a portion of original data from each of the original channels, and performing at least one decoding operation using the portion of redundancy data and the portions of original data to correct at least one error in the portions of original data.Type: ApplicationFiled: March 1, 2002Publication date: September 4, 2003Applicant: BroadLogic Network Technologies, Inc.Inventors: Wei-Min Zhang, Timothy A. Misko
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Patent number: 6326706Abstract: A linear motor and/or compressor (10; 100; 300; 500; 600) comprises a housing (20; 120; 311; 511) fitted with a number of electromagnets (40, 40′; 140, 140′; 315, 315′, 316; 515a-515c, 635a-635d), a shuttle (50; 150; 350; 550; 650) with a central guide (30, 30′; 130; 356, 356′; 520; 655) for keeping it coaxial with the electromagnets and a suspension mechanism for the shuttle including mechanical spring, gas spring and magnetic spring arrangements. The electromagnets form a number of axially exposed magnetic gaps to interact with axially exposed magnetic gaps formed on the shuttle to cause it reciprocate by push-and-pull forces. A phase difference can be produced between the electromagnets to improve shuttle suspension. The central guide can be made hollow to circulate a coolant to cool the compressor from inside.Type: GrantFiled: January 22, 2000Date of Patent: December 4, 2001Assignee: Z & D LimitedInventor: Wei-Min Zhang
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Patent number: 5818131Abstract: A compressor (10; 100; 200; 300; 500) with a build-in reciprocating motor, comprises a cylindrical housing (20; 120; 210; 510) with two ends thereof fitted with two opposing electromagnets (30; 130; 230; 530), each has a circular inner pole (36; 136) and a coaxial annular outer pole (34; 134). A free piston (50; 150; 250; 560; 600) is disposed in the housing between the two electromagnets, dividing the interior of the housing into two chambers (I, II). The piston carries permanent magnet (40; 140, 145; 561; 610), providing inner and outer poles (44, 46; 141, 146) which have conical surface portions (43, 49; 141, 146) complementary with the corresponding poles (34, 36; 134, 136) of the electromagnets. Sliding pole pieces (630 and 660) can be used to increase the stroke length and reduce the piston's total weight. Valves (61, 63, 65; 161, 165) are fitted to form one-way flow passage connecting the inlet and the outlet of the compressor.Type: GrantFiled: May 13, 1997Date of Patent: October 6, 1998Inventor: Wei-Min Zhang