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).

  • Publication number: 20150187700
    Abstract: 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: Application
    Filed: December 30, 2013
    Publication date: July 2, 2015
    Applicant: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Wei SHAO, Wanbing YI, Shunqiang GONG, Chao ZHU, Juan Boon TAN
  • Patent number: 9066885
    Abstract: 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: Grant
    Filed: March 17, 2008
    Date of Patent: June 30, 2015
    Assignee: University of Maryland, College Park
    Inventors: Srinivasa R. Raghavan, Gregory F. Payne, Chao Zhu, Matthew B. Dowling
  • Patent number: 9066239
    Abstract: 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: Grant
    Filed: August 22, 2012
    Date of Patent: June 23, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
  • Patent number: 9019949
    Abstract: 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: Grant
    Filed: March 12, 2013
    Date of Patent: April 28, 2015
    Assignee: International Business Machines Corporation
    Inventors: Yonghua Lin, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20150087320
    Abstract: 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: Application
    Filed: March 28, 2013
    Publication date: March 26, 2015
    Inventors: Mingqiang Li, Yonghua Lin, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
  • Patent number: 8983376
    Abstract: 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: Grant
    Filed: May 24, 2012
    Date of Patent: March 17, 2015
    Assignee: International Business Machines Corporation
    Inventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
  • Patent number: 8902090
    Abstract: 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: Grant
    Filed: May 22, 2013
    Date of Patent: December 2, 2014
    Assignee: International Business Machines Corporation
    Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20140321582
    Abstract: Various embodiments of the present invention provide a method and apparatus for parallel data processing. In one embodiment of the present invention, there is provided a method for parallel data processing, comprising: receiving baseband data corresponding to multiple antennas from uplink data; converting the baseband data from time-domain signals to frequency-domain signals; processing the frequency-domain signals at least partially in parallel by multiple processing units in a general-purpose processor so as to restore transmitted code blocks; and constructing transmission block (TB) based on the transmitted code blocks. In one embodiment of the present invention, there is provided an apparatus for parallel data processing. By means of the method and apparatus of the present invention, the parallel data processing capacity of a general-purpose data processor may be used to process, in parallel as much as possible, data in uplink data transmission and further improve the receiver operation efficiency.
    Type: Application
    Filed: April 21, 2014
    Publication date: October 30, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xinhao Cheng, Yonghua Lin, Chao Xue, Rong Yan, Chao Zhu
  • Publication number: 20130336237
    Abstract: 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: Application
    Filed: March 12, 2013
    Publication date: December 19, 2013
    Inventors: Yonghua Lin, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20130324176
    Abstract: 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: Application
    Filed: May 22, 2013
    Publication date: December 5, 2013
    Applicant: International Business Machines Corporation
    Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20130322336
    Abstract: 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: Application
    Filed: June 26, 2013
    Publication date: December 5, 2013
    Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20130321181
    Abstract: 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: Application
    Filed: May 22, 2013
    Publication date: December 5, 2013
    Applicant: International Business Machines Corporation
    Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20130321182
    Abstract: 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: Application
    Filed: June 24, 2013
    Publication date: December 5, 2013
    Inventors: Xinhao Cheng, Mingqiang Li, Yonghua Lin, Qing Wang, Chao Xue, Rong Yan, Hai Zhan, Chao Zhu
  • Publication number: 20130150520
    Abstract: 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: Application
    Filed: May 6, 2011
    Publication date: June 13, 2013
    Applicant: ISP Investments Inc.
    Inventors: Osama M. Musa, Chao Zhu
  • Publication number: 20130003674
    Abstract: 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: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yong Hua LIN, Jianbin TANG, Qing WANG, Jun Song WANG, Rong YAN, Hai ZHAN, Chao ZHU, Zhen Bo ZHU
  • Publication number: 20120315942
    Abstract: 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: Application
    Filed: August 22, 2012
    Publication date: December 13, 2012
    Applicant: International Business Machines Corporation
    Inventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
  • Publication number: 20120302273
    Abstract: 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: Application
    Filed: May 24, 2012
    Publication date: November 29, 2012
    Applicant: International Business Machines Corporation
    Inventors: Yonghua Lin, Jianbin Tang, Jun Song Wang, Qing Wang, Rong Yan, Hai Zhan, Chao Zhu, Zhen Bo Zhu
  • Patent number: 8166906
    Abstract: The present invention relates to a stimulus-indicating device. More particularly, the present invention relates to 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 relates to a method for manufacturing aspects of that apparatus.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: May 1, 2012
    Inventors: Rel S. Ambrozy, Jade Litcher, Raymond C. Jones, Chao Zhu, Bani H. Cipriano, Srinivasa R. Raghavan
  • Publication number: 20120027647
    Abstract: 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: Application
    Filed: June 17, 2010
    Publication date: February 2, 2012
    Inventors: Rel S. Ambrozy, Jade Litcher, Raymond C. Jones, Chao Zhu, Bani H. Cipriano, Srinivasa R. Raghavan, Jae-Ho Lee
  • Patent number: 7658340
    Abstract: With the coupling of an external field and aeration (or a flow of another gas), nanoparticles can be smoothly and vigorously fluidized. A magnetic force and/or pre-treatment may be employed with the fluidizing gas and, when coupled with a fluidizing medium, provide excellent means for achieving homogenous nanofluidization. The magnetic force interacts with non-fluidizing magnetic particles and helps to break channels as well as provide enough energy to disrupt the strong interparticle forces, thereby establishing an advantageous agglomerate size distribution. Enhanced fluidization is reflected by improved performance-related attributes. The fluidized nanoparticles may be coated, surface-treated and/or surface-modified in the fluidized state. In addition, the fluidized nanoparticles may participate in a reaction, either as a reactant or a catalyst, while in the fluidized state.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: February 9, 2010
    Assignee: New Jersey Institute of Technology
    Inventors: Robert Pfeffer, Caroline H. Nam, Rajesh N. Dave, Guangliang Liu, Jose A. Quevedo, Qun Yu, Chao Zhu