Patents by Inventor Junwei Cao

Junwei Cao 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).

  • Patent number: 12529711
    Abstract: A probe module for testing the resistivity of a conductive fiber material includes four gland spring holes in the upper end gland are uniformly formed in the bottom surface of the gland main body; one end of a pressure spring is abutted against the top of the gland spring holes, and the other end of the pressure spring contacts a conductive sheet; an outer wall of a probe frame is of an external thread structure which is matched with an internal thread structure of an internal threaded hole and threadably secured thereto; the probe frame is internally provided with a spring probe; a pressure sensor contacts the conductive sheet, and both are sleeved on an upper part of the spring probe; and the top end of the spring probe is in contact with the pressure spring, and the bottom end of the spring probe contacts a conductive fiber material sample.
    Type: Grant
    Filed: April 11, 2024
    Date of Patent: January 20, 2026
    Assignee: NATIONAL INSTITUTE OF METROLOGY, CHINA
    Inventors: Senlin Jin, Lingling Ren, Junwei Cao, Guodong Wu, Jianyun He
  • Patent number: 12398353
    Abstract: A full-ocean-depth fidelity enzymological measurement device for microbial extracellular enzyme is provided, comprising a pressure-maintaining sampling bottle, pressure-maintaining transfer equipment, a pressure-maintaining enzymological reactor, and heat preservation equipment and enzyme activity detection equipment. The pressure-maintaining enzymological reactor comprises a barrel body, a plug, polytetrafluoroethylene gaskets, an O-ring, a piston, a high-pressure straight-through valve, and a high-pressure connector. The pressure-maintaining enzymological reactor is in a closed barrel body shape and is internally provided with the piston, and the plug and the valve are arranged at each of two ends of the pressure-maintaining enzymological reactor; and the valve is connected to the pressure-maintaining transfer equipment through the high-pressure connector.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: August 26, 2025
    Assignee: Shanghai Ocean University
    Inventors: Jiasong Fang, Junwei Cao, Jiawang Chen, Binbin Pan, Hongge Zhang, Han Ge, Dahai Zhang, Yuan Lin
  • Publication number: 20240345131
    Abstract: A probe module for testing the resistivity of a conductive fiber material includes four gland spring holes in the upper end gland are uniformly formed in the bottom surface of the gland main body; one end of a pressure spring is abutted against the top of the gland spring holes, and the other end of the pressure spring contacts a conductive sheet; an outer wall of a probe frame is of an external thread structure which is matched with an internal thread structure of an internal threaded hole and threadably secured thereto; the probe frame is internally provided with a spring probe; a pressure sensor contacts the conductive sheet, and both are sleeved on an upper part of the spring probe; and the top end of the spring probe is in contact with the pressure spring, and the bottom end of the spring probe contacts a conductive fiber material sample.
    Type: Application
    Filed: April 11, 2024
    Publication date: October 17, 2024
    Inventors: Senlin JIN, Junwei CAO, Lingling REN, Guodong WU, Jianyun HE
  • Publication number: 20240264083
    Abstract: The present disclosure discloses a technique for quantitative detection of ?-galactosidase (?-GAL) based on surface-enhanced Raman spectroscopy (SERS), including the following steps: a. taking 180 ?L of each of a 5-bromo-4-chloro-3-indolyl ?-D-galactoside (BCIG) solution, a ?-GAL solution, and dimethylsulfoxide (DMSO); b. preparing a plurality of ?-GAL samples with different activities in advance; c. adding an equal volume of a colloidal gold nanoparticle dropwise to each of the plurality of standard solutions with different activities, and conducting SERS; d. mixing a seawater sample to be tested with BCIG, incubating a resulting mixture to allow a reaction, adding DMSO and a colloidal gold nanoparticle, and directly detecting SERS signals of a product and the DMSO; and e. comparing the SERS signals obtained in step d with the standard curve to obtain an activity of the seawater sample to be tested.
    Type: Application
    Filed: October 25, 2022
    Publication date: August 8, 2024
    Inventors: Jiasong FANG, Yong WU, Hongge ZHANG, Tianqiang BAO, Junwei CAO
  • Publication number: 20220390377
    Abstract: The present disclosure provides a technique for quantitatively detecting alkaline phosphatase (ALP) activities in seawater and other aquatic environments, based on surface-enhanced Raman spectroscopy by taking 5-bromo-4-chloro-3-indolyl phosphate (BCIP) as a substrate and dimethyl sulfoxide (DMSO) as an internal standard. Results show that ALP activity has a good linear correlation with the intensity ratio of a characteristic Raman peak to that of the internal standard peak (600 cm?1/677 cm?1) (R2=0.977). The technique was successfully applied to detect ALP activity of a seawater sample. By extension this technique can also be used in detecting the activity of other microbial extracellular enzymes (e.g., aminopeptidase) in seawater and thus, lays a solid scientific foundation for in-situ detection of the activities of other extracellular enzymes in seawater and other aquatic environments.
    Type: Application
    Filed: May 31, 2022
    Publication date: December 8, 2022
    Inventors: JIASONG FANG, YONG WU, HONGGE ZHANG, YULI WEI, JUNWEI CAO, SICONG LI
  • Publication number: 20220356426
    Abstract: A full-ocean-depth fidelity enzymological measurement device for microbial extracellular enzyme is provided, comprising a pressure-maintaining sampling bottle, pressure-maintaining transfer equipment, a pressure-maintaining enzymological reactor, and heat preservation equipment and enzyme activity detection equipment. The pressure-maintaining enzymological reactor comprises a barrel body, a plug, polytetrafluoroethylene gaskets, an O-ring, a piston, a high-pressure straight-through valve, and a high-pressure connector. The pressure-maintaining enzymological reactor is in a closed barrel body shape and is internally provided with the piston, and the plug and the valve are arranged at each of two ends of the pressure-maintaining enzymological reactor; and the valve is connected to the pressure-maintaining transfer equipment through the high-pressure connector.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 10, 2022
    Inventors: Jiasong FANG, Junwei CAO, Jiawang CHEN, Binbin PAN, Hongge ZHANG, Han GE, Dahai ZHANG, Yuan LIN
  • Patent number: 9923378
    Abstract: Technologies effective to control a distribution of energy from an energy source to a first device and to a second device are generally described. In some examples, a controller may receive first device data and second device data, from the first device and the second device, respectively. The first device data may indicate first energy consumption by the first device and a first current energy quantity of the first device. The second device data may indicate second energy consumption by the second device and a second current energy quantity of the second device. The controller may control a first switch and a second switch, based on the first and second device data, to allow a first transmission of first energy from the energy source to the first device, and to interrupt a second transmission of second energy from the energy source to the second device.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: March 20, 2018
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Junwei Cao, Zijing Yang
  • Patent number: 9760876
    Abstract: Technology is described for flexibly pricing cloud computing services. In some examples, the technology may receive at a cloud service provider a first set of information from an Internet service provider that provides an Internet service. The first set of information may relate to expected user behavior of a representative user of the Internet service provider. The technology may identify one or more computing resources employed by the Internet service provided by the Internet service provider and analyze the first set of information to determine a cycle. The cycle is a function of the computing resources expected to be employed by the representative user of the Internet service provider. The technology may compute a service fee for each instance of the cycle and allocates the service fee to the Internet service provider.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: September 12, 2017
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Junwei Cao, Wei Chen
  • Publication number: 20170117712
    Abstract: Technologies effective to control a distribution of energy from an energy source to a first device and to a second device are generally described. In some examples, a controller may receive first device data and second device data, from the first device and the second device, respectively. The first device data may indicate first energy consumption by the first device and a first current energy quantity of the first device. The second device data may indicate second energy consumption by the second device and a second current energy quantity of the second device. The controller may control a first switch and a second switch, based on the first and second device data, to allow a first transmission of first energy from the energy source to the first device, and to interrupt a second transmission of second energy from the energy source to the second device.
    Type: Application
    Filed: March 6, 2015
    Publication date: April 27, 2017
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: JUNWEI CAO, ZIJING YANG
  • Patent number: 9635134
    Abstract: Technologies and implementations for managing cloud resources.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: April 25, 2017
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Junwei Cao, Yuxin Wan
  • Publication number: 20160373834
    Abstract: Technologies to generate multimedia data are generally described. In some examples, a multimedia generator may receive initial audio data that may include audio rhythm data. The audio rhythm data may be effective to indicate a pattern of a set of beats. The multimedia generator may also compare the audio rhythm data with video rhythm data, where the video rhythm data may be effective to indicate a change of direction of a set of points in a video segment. The multimedia generator may also identify the video segment based on the comparison of the audio rhythm data with the video rhythm data. The multimedia generator may also map the video segment to at least a portion of the initial audio data to generate the multimedia data.
    Type: Application
    Filed: February 6, 2015
    Publication date: December 22, 2016
    Inventors: JUNWEI CAO, YANXIANG XU
  • Patent number: 9407680
    Abstract: An example method to determine a quality-of-experience (QoE) metric for a network communication includes receiving a media signal from the network communication, wherein the media signal includes a voice component, extracting an experience indicator from the voice component, wherein the experience indicator is a voice feature descriptive of a service quality of the network communication, evaluating the experience indicator, retrieving a quality-of-service (QoS) metric if the evaluated experience indicator reflects the service quality of the network possibly being subpar, and determining the QoE metric for the network communication based on the evaluated experience indicator and the retrieved QoS metric for the network communication.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: August 2, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Junwei Cao, Han Qian, Junwei Li
  • Patent number: 9286571
    Abstract: Technologies are generally provided for maintaining performance level of a database being migrated between different cloud-based service providers employing machine learning. In some examples, data requests submitted to an original data store/database may be submitted to a machine learning-based filter for recording and analysis. Based on the results of the data requests and the filter analyses, new key value structures for a new data store/database may be created. The filter may assign performance scores to the original data requests (made to the original data store) and data requests made to the newly-created key value structures. The filter may then compare the performance scores associated with the created key value structures to each other and to performance scores associated with the original data requests and may select the created key value structures with performance scores that are at least substantially equal to those of the original data requests for the new data store.
    Type: Grant
    Filed: April 1, 2012
    Date of Patent: March 15, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Junwei Cao, Wei Chen
  • Publication number: 20160014187
    Abstract: An example method to determine a quality-of-experience (QoE) metric for a network communication includes receiving a media signal from the network communication, wherein the media signal includes a voice component, extracting an experience indicator from the voice component, wherein the experience indicator is a voice feature descriptive of a service quality of the network communication, evaluating the experience indicator, retrieving a quality-of-service (QoS) metric if the evaluated experience indicator reflects the service quality of the network possibly being subpar, and determining the QoE metric for the network communication based on the evaluated experience indicator and the retrieved QoS metric for the network communication.
    Type: Application
    Filed: September 25, 2015
    Publication date: January 14, 2016
    Inventors: Junwei CAO, Han QIAN, Junwei LI
  • Patent number: 9223652
    Abstract: Examples are disclosed for facilitating recovery from failures associated with a storage array having a plurality of storage devices.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: December 29, 2015
    Assignee: Empire Technology Development LLC
    Inventors: Junwei Cao, Xiao Lin
  • Publication number: 20150326642
    Abstract: To share content of a desktop of a local computing device, the local computing device may be configured to extract contents of each visible window of the desktop and may further, compress and encode the contents. The compressed and encoded contents may then be transmitted to a remote computing device for reconstructing windows corresponding to the visible windows on the local computing device.
    Type: Application
    Filed: March 6, 2013
    Publication date: November 12, 2015
    Inventors: Junwei Cao, Guoyu Tu
  • Patent number: 9185005
    Abstract: Technologies are generally described for determining a quality-of-experience (QoE) of a network communication. In some examples, a process for determining a QoE metric for a network communication includes receiving a media signal from the network communication. The process may also include extracting an experience indicator from the media signal, wherein the experience indicator corresponds to a participant's subjective usage experience associated with a service quality of the network communication, and determining the QoE metric for the network communication based on the experience indicator and a quality-of-service (QoS) metric for the network communication.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: November 10, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Junwei Cao, Han Qian, Junwei Li
  • Patent number: 9003502
    Abstract: Technologies are presented for a hybrid cloud-based service model combining separate database/separate schema, shared database/separate schema, and shared database/shared schema architectures suitable for serving multiple tenants while addressing varying security needs. Roles and security level needs of different tenants may be determined based on tenant declaration or inference from tenant attributes. Tenants may then be assigned to suitable clouds or sub-clouds based on their security level needs. In some examples, a claims-based access control authorization model such as federation may be employed to support interactions between the three different types of clouds or sub-clouds under the umbrella of a single cloud-based service provider while maintaining application and data security.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: April 7, 2015
    Assignee: Empire Technology Development LLC
    Inventors: Fan Zhang, Junwei Cao
  • Publication number: 20140297491
    Abstract: Technology is described for flexibly pricing cloud computing services. In some examples, the technology may receive at a cloud service provider a first set of information from an Internet service provider that provides an Internet service. The first set of information may relate to expected user behavior of a representative user of the Internet service provider. The technology may identify one or more computing resources employed by the Internet service provided by the Internet service provider and analyze the first set of information to determine a cycle. The cycle is a function of the computing resources expected to be employed by the representative user of the Internet service provider. The technology may compute a service fee for each instance of the cycle and allocates the service fee to the Internet service provider.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 2, 2014
    Applicant: Empire Technology Development LLC
    Inventors: Junwei Cao, Wei Chen
  • Patent number: 8850021
    Abstract: Technologies are generally described for methods, instructions, and client applications for device discovery in a ubiquitous computing environment. In some examples, the methods, instructions, and client applications may facilitate the organization of features of devices in a ubiquitous computing environment into a series of hierarchical hash numbers, the ordering of the hierarchical hash numbers corresponding to the respective devices, and the searching for a particular one of the devices by attempting to match hashed search criteria to the ordered hierarchical hash numbers at one of the devices in the ubiquitous computing environment.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 30, 2014
    Assignee: Empire Technology Development LLC
    Inventors: Junwei Cao, Zhen Wang