Patents by Inventor Hongmei Zhu
Hongmei Zhu 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: 11991103Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method comprises: transmitting coherent information of a communication device; and receiving configuration information for the communication device, wherein the configuration information indicates a plurality of phase tracking reference signal (PTRS) ports assigned to the communication device and is based at least on the coherent information.Type: GrantFiled: April 3, 2018Date of Patent: May 21, 2024Assignee: Lenovo (Beijing) LimitedInventors: Bingchao Liu, Chenxi Zhu, Hongmei Liu
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Patent number: 11943035Abstract: Methods and apparatuses for recovering from beam failure are disclosed. A method of recovering from beam failure, comprising: sending a beam failure recovery request message including information regarding beam failure recovery and information regarding a new candidate beam via a working beam of a first cell; monitoring a response via the new candidate beam of a second cell; and receiving the response via the new candidate beam from the second cell.Type: GrantFiled: March 6, 2023Date of Patent: March 26, 2024Assignee: Lenovo (Beijing) LimitedInventors: Chenxi Zhu, Lianhai Wu, Zhennian Sun, Hongmei Liu
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Publication number: 20230369669Abstract: The invention belongs to the field of an electrolyte solution for a battery, and discloses a lithium-sulfur battery electrolyte and a preparation method and application thereof. The electrolyte solution comprises the following components: an organic solvent, an electrolyte and an additive; the organic solvent is 1,1,2, 2-tetrafluoroethyl 2,2,3,3-tetrafluoropropyl ether and 1,3-dioxolane; the electrolyte is bis(hexafluoroethane) sulfonamide lithium salt and LiCF3SO3; the additive is a lithium-sulfur compound, wherein the lithium-sulfur compound is Li6S2. The invention recovers an electrolyte solution from a lithium-sulfur battery, and then extracts the Li element in the electrolyte solution, which is recycled for preparation of a electrolyte solution of the lithium-sulfur battery; in addition, it can also enrich the organic components in the electrolyte solution of the waste lithium-sulfur battery, facilitating a centralized processing and reduction of leakage pollution.Type: ApplicationFiled: July 24, 2023Publication date: November 16, 2023Applicants: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP EV RECYCLING CO., LTD.Inventors: Haijun Yu, Ting Peng, Yinghao Xie, Hongmei Zhu, Changdong Li
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Publication number: 20230223156Abstract: The present disclosure provides a consistency evaluation method for a traditional extraction process and a modern extraction process of a traditional Chinese medicine (TCM) compound preparation. In the present disclosure, the reference correlation degree is calculated based on the relative deviation. The reference correlation degree is within a threshold interval of [??, 1]. If the relative deviation is 0, the reference correlation degree is 100%, and at the moment, the quality of a modern extraction sample is completely consistent with that of a reference sample. Thus, compared with the relative deviation, the reference correlation degree can represent a quality difference between the modern extraction sample and the reference sample more intuitively and clearly.Type: ApplicationFiled: November 15, 2022Publication date: July 13, 2023Applicant: SICHUAN ACADEMY OF CHINESE MEDICINE SCIENCESInventors: Aijun ZHANG, Junning ZHAO, Shan DAI, Shuai LI, Hongmei ZHU, Jin ZENG, Jiuzhou MAO
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Publication number: 20220189059Abstract: Embodiments of the present disclosure disclose an image-based pose determination method and apparatus, a computer readable storage medium, and an electronic device. The method include: acquiring a current image frame captured by a camera disposed on a moving object and a historical image frame captured before the current image frame; determining a first relative camera pose between the current image frame and the historical image frame; determining a virtual binocular image based on the first relative camera pose; and determining current pose information of the camera based on preset visual odometry and the virtual binocular image. According to the embodiments of the present disclosure, the virtual binocular image may be generated based on a monocular image, thus achieving effects of binocular visual odometry without using a binocular camera, thereby reducing costs.Type: ApplicationFiled: December 2, 2021Publication date: June 16, 2022Inventors: Wei Sui, Qian Zhang, Hongmei Zhu
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Publication number: 20220156957Abstract: Disclosed are an image depth estimation method and device, a computer-readable storage medium and electronic equipment. The method includes: obtaining a first image frame and second image frame collected in a movement process of an electronic apparatus; determining a first feature map corresponding to the first image frame and a second feature map corresponding to the second image frame; determining a scaled inter-frame geometrical relationship between the first and second image frames; determining a reconstruction error between the first and second feature maps based on the inter-frame geometrical relationship; and determining a depth map corresponding to the first image frame based on the reconstruction error.Type: ApplicationFiled: November 13, 2021Publication date: May 19, 2022Applicant: Beijing Horizon Information Technology Co., Ltd.Inventors: Hongmei ZHU, Qian ZHANG, Wei SUI
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Patent number: 9344895Abstract: A method and a system for securely accessing a portable hotspot for intelligent mobile phones, comprises an intelligent mobile phone used as an AP and another intelligent mobile phone used as an STA. The AP comprises an AP NFC module and a first data transmission module; and the STA comprises an STA NFC module and a second data transmission module. The AP uses the NFC module to perform a WPA security authentication with the STA, and uses the first data transmission module to perform data encrypted transmission with the second data transmission module. In the method and the system of the present disclosure, the common WLAN authentication mechanism is not adopted, and the security authentication process between the AP and the STA is completed in the NFC manner instead.Type: GrantFiled: June 14, 2013Date of Patent: May 17, 2016Assignee: Huizhou TC Mobile Communication Co., LtdInventors: Xiaoyong Wu, Xinxing Wu, Jinggao Zhou, Hongmei Zhu
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Publication number: 20150065088Abstract: A method and a system for securely accessing a portable hotspot for intelligent mobile phones, comprises an intelligent mobile phone used as an AP and another intelligent mobile phone used as an STA. The AP comprises an AP NFC module and a first data transmission module; and the STA comprises an STA NFC module and a second data transmission module. The AP uses the NFC module to perform a WPA security authentication with the STA, and uses the first data transmission module to perform data encrypted transmission with the second data transmission module. In the method and the system of the present disclosure, the common WLAN authentication mechanism is not adopted, and the security authentication process between the AP and the STA is completed in the NFC manner instead.Type: ApplicationFiled: June 14, 2013Publication date: March 5, 2015Applicant: HUIZHOU TCL MOBILE COMMUNICATION CO., LTDInventors: Xiaoyong Wu, Xinxing Wu, Jinggao Zhou, Hongmei Zhu
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Patent number: 7502526Abstract: The present invention relates to a method for filtering time-varying MR signal data prior to image reconstruction. A one-dimensional FT is applied to the time-varying MR signal data along each frequency-encode line of k space. The phase p of each complex pair (R,I) of the FT transformed data is calculated to create a phase profile for each frequency-encode line. This process is repeated for all time points of the time-varying MR signal data. The time course of each point within the phase profile is then transformed into Stockwell domain producing ST spectra. Frequency component magnitudes indicative of an artifact are determined and replaced with a predetermined frequency component magnitude. Each of the ST spectra is then collapsed into a one-dimensional function. New real and imaginary values (R?,I?) of the complex Fourier data are calculated based on the collapsed ST spectra which are transformed using one-dimensional inverse Fourier transformation for producing filtered time-varying MR signal data.Type: GrantFiled: July 16, 2007Date of Patent: March 10, 2009Assignee: Calgary Scientific Inc.Inventors: J. Ross Mitchell, T. Chen Fong, Bradley G. Goodyear, Hongmei Zhu
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Publication number: 20080080786Abstract: The present invention relates to a method for filtering time-varying MR signal data prior to image reconstruction. A one-dimensional FT is applied to the time-varying MR signal data along each frequency-encode line of k space. The phase p of each complex pair (R,I) of the FT transformed data is calculated to create a phase profile for each frequency-encode line. This process is repeated for all time points of the time-varying MR signal data. The time course of each point within the phase profile is then transformed into Stockwell domain producing ST spectra. Frequency component magnitudes indicative of an artifact are determined and replaced with a predetermined frequency component magnitude. Each of the ST spectra is then collapsed into a one-dimensional function. New real and imaginary values (R?,I?) of the complex Fourier data are calculated based on the collapsed ST spectra which are transformed using one-dimensional inverse Fourier transformation for producing filtered time-varying MR signal data.Type: ApplicationFiled: July 16, 2007Publication date: April 3, 2008Applicant: 976076 Alberta Inc.Inventors: J. Mitchell, T. Fong, Bradley Goodyear, Hongmei Zhu
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Patent number: 7319788Abstract: The present invention relates to a method for visualizing ST data based on principal component analysis. ST data indicative of a plurality of local S spectra, each local S spectrum corresponding to an image point of an image of an object are received. In a first step principal component axes of each local S spectrum are determined. This step is followed by the determination of a collapsed local S spectrum by projecting a magnitude of the local S spectrum onto at least one of its principal component axes, thus reducing the dimensionality of the S spectrum. After determining a weight function capable of distinguishing frequency components within a frequency band a texture map for display is generated by calculating a scalar value from each principal component of the collapsed S spectrum using the weight function and assigning the scalar value to a corresponding position with respect to the image.Type: GrantFiled: May 7, 2003Date of Patent: January 15, 2008Assignee: Calgary Scientific Inc.Inventors: J. Ross Mitchell, T. Chen Fong, Hongmei Zhu
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Patent number: 7259767Abstract: The present invention relates to a method and system for segmenting texture of multi-dimensional data indicative of a characteristic of an object. Received multi-dimensional data are transformed into second multi-dimensional data within a Stockwell domain based upon a polar S-transform of the multi-dimensional data. Principal component analysis is then applied to the second multi-dimensional data for generating texture data characterizing texture around each data point of the multi-dimensional data. Using a classification process the data points of the multi-dimensional data are partitioned into clusters based on the texture data. Finally, a texture map is produced based on the partitioned data points. The present invention provides image texture segmentation based on the polar S-transform having substantially reduced redundancy while keeping maximal data variation.Type: GrantFiled: May 2, 2005Date of Patent: August 21, 2007Assignee: Calgary Scientific Inc.Inventors: Ross Mitchell, Hongmei Zhu, Yunyan Zhang, Alan Law
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Patent number: 7251379Abstract: The present invention relates to a method and system for distributed computing an S transform dataset of multidimensional image data of an object. The multidimensional image data are fast Fourier transformed into Fourier domain producing a Fourier spectrum. The respective Fourier frequencies are then partitioned into a plurality of portions of frequencies for simultaneously processing. Processing of each of the plurality of portions of the Fourier frequencies is assigned to a respective processor of a plurality of processors. The Fourier spectrum of multidimensional image data and each of the plurality of portions of the Fourier frequencies is transmitted to the respective processor. The portions of the Fourier frequencies are then simultaneously processed in order to produce the S transform dataset. The S transform data are then collected and stored.Type: GrantFiled: May 7, 2003Date of Patent: July 31, 2007Assignee: 976076 Alberta Inc.Inventors: J. Ross Mitchell, T. Chen Fong, Robert Brown, Hongmei Zhu
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Patent number: 7245786Abstract: The present invention relates to a method for filtering time-varying MR signal data prior to image reconstruction. A one-dimensional FT is applied to the time-varying MR signal data along each frequency-encode line of k space. The phase p of each complex pair (R, I) of the FT transformed data is calculated to create a phase profile for each frequency-encode line. This process is repeated for all time points of the time-varying MR signal data. The time course of each point within the phase profile is then transformed into Stockwell domain producing ST spectra. Frequency component magnitudes indicative of an artifact are determined and replaced with a predetermined frequency component magnitude. Each of the ST spectra is then collapsed into a one-dimensional function. New real and imaginary values (R?, I?) of the complex Fourier data are calculated based on the collapsed ST spectra which are transformed using one-dimensional inverse Fourier transformation for producing filtered time-varying MR signal data.Type: GrantFiled: May 7, 2003Date of Patent: July 17, 2007Assignee: 976076 Alberta Inc.Inventors: J. Ross Mitchell, T. Chen Fong, Bradley G. Goodyear, Hongmei Zhu
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Patent number: 7005854Abstract: The present invention relates to a method and system for enhancing resolution of a magnetic resonance image of an object. The method combines information from a plurality of low-resolution images with a Field Of View shifted by a distance less than a pixel width to create a synthesized image having substantially improved image quality. Information from the low-resolution images is merged and application of an aperture function enhances the SNR of the synthesized image resulting in synthesized images having a substantially higher spatial resolution as well as a substantially increased SNR. The method and system for enhancing resolution of a magnetic resonance image is highly beneficial for a MRI practitioner by substantially improving image quality, thus facilitating diagnostic methods such as texture analysis and disease specific tissue segmentation.Type: GrantFiled: June 25, 2004Date of Patent: February 28, 2006Assignee: 976076 Alberta Inc.Inventors: J. Ross Mitchell, Gregory S. Mayer, M. Louis Lauzon, Hongmei Zhu
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Publication number: 20050253863Abstract: The present invention relates to a method and system for segmenting texture of multi-dimensional data indicative of a characteristic of an object. Received multi-dimensional data are transformed into second multi-dimensional data within a Stockwell domain based upon a polar S-transform of the multi-dimensional data. Principal component analysis is then applied to the second multi-dimensional data for generating texture data characterizing texture around each data point of the multi-dimensional data. Using a classification process the data points of the multi-dimensional data are partitioned into clusters based on the texture data. Finally, a texture map is produced based on the partitioned data points. The present invention provides image texture segmentation based on the polar S-transform having substantially reduced redundancy while keeping maximal data variation.Type: ApplicationFiled: May 2, 2005Publication date: November 17, 2005Applicant: Calgary Scientific Inc.Inventors: Ross Mitchell, Hongmei Zhu, Yunyan Zhang, Alan Law
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Patent number: 6850062Abstract: The present invention relates to a method for processing magnetic resonance signal data. magnetic resonance signal data in dependence upon a magnetic resonance signal time series are received. The magnetic resonance signal data are then transformed into a time-frequency Stockwell domain using a localizing time window having a frequency dependent window width in order to provide multi-resolution in the time-frequency domain. The Stockwell transformed magnetic resonance signal data are then processed in the Stockwell domain, for example, filtered based on time-frequency information of the Stockwell transformed magnetic resonance signal data. The processed Stockwell transformed magnetic resonance signal data are then transformed into Fourier domain by summing the Stockwell transformed magnetic resonance signal data over time indices of the Stockwell domain. In a further step the Fourier transformed magnetic resonance signal data are then transformed into time domain using inverse Fourier transformation.Type: GrantFiled: May 7, 2003Date of Patent: February 1, 2005Assignee: 976076 Alberta Inc.Inventors: J. Ross Mitchell, T. Chen Fong, Hongmei Zhu, Bradley G. Goodyear, Robert Brown
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Publication number: 20040263169Abstract: The present invention relates to a method and system for enhancing resolution of a magnetic resonance image of an object. The method combines information from a plurality of low-resolution images with a Field Of View shifted by a distance less than a pixel width to create a synthesized image having substantially improved image quality. Information from the low-resolution images is merged and application of an aperture function enhances the SNR of the synthesized image resulting in synthesized images having a substantially higher spatial resolution as well as a substantially increased SNR. The method and system for enhancing resolution of a magnetic resonance image is highly beneficial for a MRI practitioner by substantially improving image quality, thus facilitating diagnostic methods such as texture analysis and disease specific tissue segmentation.Type: ApplicationFiled: June 25, 2004Publication date: December 30, 2004Inventors: J. Ross Mitchell, Gregory S. Mayer, M. Louis Lauzon, Hongmei Zhu
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Publication number: 20030210045Abstract: The present invention relates to a method for processing magnetic resonance signal data. magnetic resonance signal data in dependence upon a magnetic resonance signal time series are received. The magnetic resonance signal data are then transformed into a time-frequency Stockwell domain using a localizing time window having a frequency dependent window width in order to provide multi-resolution in the time-frequency domain. The Stockwell transformed magnetic resonance signal data are then processed in the Stockwell domain, for example, filtered based on time-frequency information of the Stockwell transformed magnetic resonance signal data. The processed Stockwell transformed magnetic resonance signal data are then transformed into Fourier domain by summing the Stockwell transformed magnetic resonance signal data over time indices of the Stockwell domain. In a further step the Fourier transformed magnetic resonance signal data are then transformed into time domain using inverse Fourier transformation.Type: ApplicationFiled: May 7, 2003Publication date: November 13, 2003Inventors: J. Ross Mitchell, T. Chen Fong, Hongmei Zhu, Bradley G. Goodyear, Robert Brown
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Publication number: 20030212490Abstract: The present invention relates to a method for visualizing ST data based on principal component analysis. ST data indicative of a plurality of local S spectra, each local S spectrum corresponding to an image point of an image of an object are received. In a first step principal component axes of each local S spectrum are determined. This step is followed by the determination of a collapsed local S spectrum by projecting a magnitude of the local S spectrum onto at least one of its principal component axes, thus reducing the dimensionality of the S spectrum. After determining a weight function capable of distinguishing frequency components within a frequency band a texture map for display is generated by calculating a scalar value from each principal component of the collapsed S spectrum using the weight function and assigning the scalar value to a corresponding position with respect to the image.Type: ApplicationFiled: May 7, 2003Publication date: November 13, 2003Inventors: J. Ross Mitchell, T. Chen Fong, Hongmei Zhu