Patents by Inventor Chao Zhu
Chao 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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Publication number: 20160105804Abstract: An apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: ApplicationFiled: December 15, 2015Publication date: April 14, 2016Applicant: International Business Machines CorporationInventors: Yong Hua LIN, Jianbin TANG, Qing WANG, Jun Song WANG, Rong YAN, Hai ZHAN, Chao ZHU, Zhen Bo ZHU
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Patent number: 9247538Abstract: An apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: GrantFiled: July 15, 2015Date of Patent: January 26, 2016Assignee: International Business Machines CorporationInventors: Yong Hua Lin, Jianbin Tang, Qing Wang, Jun Song Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Patent number: 9240374Abstract: Semiconductor device and method for forming a semiconductor device are presented. The method includes providing a substrate prepared with intermediate dielectric layer having interconnect levels. The interconnect levels include M1 to MX metal levels, where 1 is the lowest level and X corresponds to a number of metal level. The metal level MX includes a metal pad having an oxidized portion. An upper level having an upper dielectric layer is formed over the dielectric layer having MX. The upper dielectric layer includes a plurality of via contacts over the metal pad and a metal line over the via contacts. The oxidized portion remains within the metal pad and prevents punch through between MX and its adjacent underlying metal level MX-1.Type: GrantFiled: December 30, 2013Date of Patent: January 19, 2016Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Wei Shao, Wanbing Yi, Shunqiang Gong, Chao Zhu, Juan Boon Tan
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Publication number: 20160007231Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: ApplicationFiled: September 16, 2015Publication date: January 7, 2016Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9220004Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: GrantFiled: June 26, 2013Date of Patent: December 22, 2015Assignee: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9220003Abstract: A radio unit configured to connect to a baseband processing unit includes a transformation unit configured to obtain uplink time domain signal data and transform the uplink time domain signal data into uplink frequency domain signal data; and a compression unit configured to compress the uplink frequency domain signal data by using a compression algorithm.Type: GrantFiled: May 22, 2013Date of Patent: December 22, 2015Assignee: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9204454Abstract: A method, system and base station for implementing interference coordination. The method includes the steps of obtaining an interference coordination object; receiving interference coordination information from an object base station, parsing the interference coordination information based on the interference coordination object, and performing interference coordination by utilizing the parsed interference coordination information. The method and base station for implementing interference coordination according to the present invention can significantly improve the spectral resource utilization and the cell edge user's performance.Type: GrantFiled: February 27, 2013Date of Patent: December 1, 2015Assignee: International Business Machines CorporationInventors: Mingqiang Li, Yonghua Lin, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9191824Abstract: A method and apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: GrantFiled: June 29, 2012Date of Patent: November 17, 2015Assignee: International Business Machines CorporationInventors: Yong Hua Lin, Jianbin Tang, Qing Wang, Jun Song Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Patent number: 9182292Abstract: The present invention relates, for example, to a stimulus-indicating device. More particularly, the present invention includes an apparatus for evidencing when a stimulus sensitive product has been exposed to a designated or predetermined stimulus for a certain period of time, and the invention further may include a method for manufacturing aspects of that apparatus.Type: GrantFiled: March 5, 2008Date of Patent: November 10, 2015Assignee: Prasidiux, LLCInventors: Rel S. Ambrozy, Jade Litcher, Raymond C. Jones, Chao Zhu, Bani H. Cipriano, Srinivasa R. Raghavan, Jae-Ho Lee
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Publication number: 20150319740Abstract: An apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: ApplicationFiled: July 15, 2015Publication date: November 5, 2015Applicant: International Business Machines CorporationInventors: Yong Hua LIN, Jianbin TANG, Qing WANG, Jun Song WANG, Rong YAN, Hai ZHAN, Chao ZHU, Zhen Bo ZHU
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Publication number: 20150315307Abstract: The present invention provides polymers resulting from modification of polymeric moieties containing an anhydride with modifying reactant moieties. The invention further provides a wide variety of compositions comprising the and modified polymeric moieties containing an anhydride. The letters b, d, e, and z are described herein.Type: ApplicationFiled: July 13, 2015Publication date: November 5, 2015Applicant: ISP INVESTMENTS INC.Inventors: Osama M. Musa, Chao ZHU
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Patent number: 9125062Abstract: A method and apparatus for sharing frequencies in an orthogonal frequency-division multiplexing OFDM-based wireless communication system, wherein the OFDM-based wireless communication system comprises a base station and a mobile device that work within a radio frequency band, the method comprising: detecting an interference signal in the radio frequency band; setting by the base station, based upon the interference signal, interference indication information in a control header of a downlink frame to be sent to the mobile device, the interference indication information indicating a frequency range that is occupied by the interference signal in the radio frequency band; and sending by the base station the downlink frame to the mobile device, such that the mobile device may, based upon the interference indication information, avoid the frequency range where the interference signal is located.Type: GrantFiled: February 4, 2013Date of Patent: September 1, 2015Assignee: International Business Machines CorporationInventors: Yong Hua Lin, Jianbin Tang, Qing Wang, Jun Song Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Patent number: 9094038Abstract: The present invention relates to data compression and decompression, and particularly relates to a method and an apparatus for compressing and decompressing signal data. In an embodiment of the present invention, there is disclosed a method for compressing signal data, comprising: obtaining signal data; determining block lengths of a plurality of data blocks into which the signal data are divided, and determining exponents of the data blocks; forming a mantissa sequence of the data block by using the exponent of the data block to compress signal data contained in the data block; and forming a compressed data block by using the block length, the exponent and the mantissa sequence of the data block. By constructing a variable-length data block adapted to dynamic characteristics of signal data, the method for compressing signal data of the present invention increases the compression ratio of signal data.Type: GrantFiled: June 24, 2013Date of Patent: July 28, 2015Assignee: International Business Machines CorporationInventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 9079997Abstract: The present invention provides polymers resulting from modification of polymeric moieties containing an anhydride with modifying reactant moieties. The invention further provides a wide variety of compositions comprising the and modified polymeric moieties containing an anhydride. The letters b, d, e, and z are described herein.Type: GrantFiled: May 6, 2011Date of Patent: July 14, 2015Assignee: ISP INVESTMENTS INC.Inventors: Osama M. Musa, Chao Zhu
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Publication number: 20150187700Abstract: Semiconductor device and method for forming a semiconductor device are presented. The method includes providing a substrate prepared with intermediate dielectric layer having interconnect levels. The interconnect levels include M1 to MX metal levels, where 1 is the lowest level and X corresponds to a number of metal level. The metal level MX includes a metal pad having an oxidized portion. An upper level having an upper dielectric layer is formed over the dielectric layer having MX. The upper dielectric layer includes a plurality of via contacts over the metal pad and a metal line over the via contacts. The oxidized portion remains within the metal pad and prevents punch through between MX and its adjacent underlying metal level MX-1.Type: ApplicationFiled: December 30, 2013Publication date: July 2, 2015Applicant: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Wei SHAO, Wanbing YI, Shunqiang GONG, Chao ZHU, Juan Boon TAN
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Patent number: 9066885Abstract: The present invention provides a novel biomaterial which is a hybrid, self-assembling biopolymeric networked film that is functionalized through hydrophobic interactions with vesicles loaded with bioactive agents. The biomaterial compound is a polymeric network of hydrophobically modified chitosan scaffolds that is taken from solution and formed as a solid film. This solid state film is capable of hydrophobic interactions with the functionalized vesicles. The vesicles include one or more lamellar structures forming one or more nano-compartments that are capable of containing similar or alternative active moieties within. Use of the film results in a degradation of the chitosan scaffold thereby releasing the active moieties within the vesicles from the scaffold. Application of the current invention occurs through various delivery mechanisms and routes of administration as will be described herein.Type: GrantFiled: March 17, 2008Date of Patent: June 30, 2015Assignee: University of Maryland, College ParkInventors: Srinivasa R. Raghavan, Gregory F. Payne, Chao Zhu, Matthew B. Dowling
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Patent number: 9066239Abstract: A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information.Type: GrantFiled: August 22, 2012Date of Patent: June 23, 2015Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
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Patent number: 9019949Abstract: An adapter, base band processing unit and a base station system. The adapter includes a frame obtaining logic unit configured to obtain an uplink data frame based on a received radio frame. A frame synchronizing logic unit configured to manage a frame tag of the uplink data frame. A time feedback logic unit configured to feedback to the base band processing unit an arrival time of a downlink data frame that is received from the base band processing unit. The base band processing unit includes a time synchronizing module configured to determine generation time of a current downlink data frame based on at least an arrival time of a previous downlink data frame that was a previous feed back from the adapter. A frame synchronizing module configured to manage a frame tag of the generated current downlink data frame.Type: GrantFiled: March 12, 2013Date of Patent: April 28, 2015Assignee: International Business Machines CorporationInventors: Yonghua Lin, Rong Yan, Hai Zhan, Chao Zhu
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Publication number: 20150087320Abstract: The present invention relates to a wireless network, and more specifically, to a method and apparatus for partitioning a coordination area in a wireless network, the method comprising: obtaining antenna directions of respective cells, base station locations of respective cells, and scope of a coordination area within the wireless network; determining an initial coordination area based on the scope of the coordination area and the base station locations in respective cells; partitioning the initial coordination area into an inner area and an outer area; partitioning the outer area into an inward area and an outward area based on the antenna directions of cells within the outer area and the base station locations of cells within the outer area; and combining the inner area and the inward area within the outer area into a new coordination area. The method is simple and easy.Type: ApplicationFiled: March 28, 2013Publication date: March 26, 2015Inventors: Mingqiang Li, Yonghua Lin, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
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Patent number: 8983376Abstract: A method and apparatus for reducing spectrum interference between wireless networks. This is realized by arranging at least one sub-coordinating apparatus, namely, a monitoring apparatus, in respective wireless network, and by arranging a coordinating apparatus, namely, an allocation apparatus in the whole network. Wherein, the sub-coordinating apparatus monitors the spectrum utilization situation of the wireless network where it is located, reports it to the coordinating apparatus, and requests the coordinating apparatus for spectrum resource when new spectrum resource is needed. The coordinating apparatus maintains the spectrum utilization information of each wireless network, and allocates appropriate spectrum resource to the sub-coordinating apparatus which requests spectrum resource based on the maintained information.Type: GrantFiled: May 24, 2012Date of Patent: March 17, 2015Assignee: International Business Machines CorporationInventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu