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Bao Liang Liu

from Foster City, CA
Age ~50
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Also known as:
Bao L Liu, Baoliang Liu
Related to:
John J Wang, 68Rong Liu, 60Mei Ling Wang, 60Jin Liu, 56James A Smith, 59Siyue Liu, 33Mingsheng Y Liu, 67Allen Liu, 49Michael A Smith, 44Zheng H Huang, 57
Connected to:
Abraham C Liu, 109Adele T Liu, 65Adi P Liu, 35Alan Y Liu, 39Albert Y Liu, 37Alen K Liu, 39Alma R Liu, 73Amanda T Liu, 54Ambrose M Liu, 52An P Liu, 59

Bao Liu Phones & Addresses

  • Foster City, CA
  • Ann Arbor, MI
  • Troy, MI
  • College Station, TX

Business Records

Name / Title
Company / Classification
Phones & Addresses
Bao Jing Liu
U.S.A. AFFINITY GROUP LIMITED
Bao Liu
President
SHENHUA GROUP COMPANY LIMITED
2880 Zanker Rd STE 203, San Jose, CA 95134
Bao Kun Liu
President
BAO'S ENTERPRISE, INC
456 Montgomery St #700, San Francisco, CA 94104
Bao Jing Liu
Bee Garden LLC
Import & Export Goods
1400 Coleman Ave, Santa Clara, CA 95050
Bao Jing Liu
Xtop Communication System LLC
Computer System
19 N 2 St, San Jose, CA 95113
Bao Jing Liu
America Meihou Technologic Apparatus LLC
Medical Relate Products Poaurement
19 N 2 St, San Jose, CA 95113
Bao Jing Liu
Thin - Tech Covering International LLC
Granite and Marble Products Design Sales
19 N 2 St, San Jose, CA 95113

Publications

Us Patents

Methods And Apparatus For Extracting First Arrival Wave Packets In A Structural Health Monitoring System

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US Patent:
7946176, May 24, 2011
Filed:
Mar 14, 2008
Appl. No.:
12/049061
Inventors:
Bao Liu - Cupertino CA, US
Shawn J Beard - Livermore CA, US
Assignee:
Acellent Technologies, Inc. - Sunnyvale CA
International Classification:
G01N 29/38
G01N 29/40
US Classification:
73597, 73609, 702 39
Abstract:
Methods and apparatus for extracting the first arrival wave packet of an acoustic signal in a structural health monitoring (SHM) system include receiving an acoustic signal transmitted between two transducers thereof. Electromagnetic cross-talk is removed from the signal. Signal amplitude threshold values used for picking out the first arrival wave packet are chosen based on signal characteristics or chosen adaptively as the value that leads to the minimum variance of the group velocity estimates of all the actuation-sensing transducer pairs. The group velocity is estimated as the known actuator-sensor distance divided by the propagation time of the first wave packet of which the envelope exceeds a candidate threshold value. The first arrival wave packet is determined as the signal segment where the signal envelope first exceeds the chosen amplitude threshold and the segment length exceeds a specified threshold of time width.

Functional Actuator-Sensor Path Optimization In Structural Health Monitoring System

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US Patent:
8020444, Sep 20, 2011
Filed:
Apr 15, 2008
Appl. No.:
12/103562
Inventors:
Zengpin Yu - Palo Alto CA, US
Bao Liu - Cupertino CA, US
Shawn J. Beard - Livermore CA, US
David C. Zhang - Santa Clara CA, US
Assignee:
Acellent Technologies, Inc. - Sunnyvale CA
International Classification:
G01N 9/24
US Classification:
73601
Abstract:
A method for optimizing transducer performance in an array of transducers in a structural health monitoring system includes specifying a plurality of paths between pairs of the transducers on a monitored structure and evaluating the quality of signal transmissions along the paths so as to optimize the gain and frequency operating condition of the transducers.

Dynamic Environmental Change Compensation Of Sensor Data In Structural Health Monitoring Systems

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US Patent:
8036836, Oct 11, 2011
Filed:
Apr 16, 2008
Appl. No.:
12/104354
Inventors:
Bao Liu - Cupertino CA, US
Shawn J. Beard - Livermore CA, US
Fu-Kuo Chang - Stanford CA, US
Assignee:
Acellent Technologies, Inc. - Sunnyvale CA
International Classification:
G01B 3/00
US Classification:
702 33
Abstract:
A method for adjusting signal data detected in a structural health monitoring (SHM) system to compensate for the effects of environmental variables acting thereon includes constructing a baseline data space comprised of sets of signal data. Current signal data sets are collected for comparison to the baseline data space. The collected current signal data sets are amended to best match baseline signal data sets in the baseline data space. A set of indices are computed for comparing the amended current signal data set to the baseline signal data sets. A threshold for detection is determined by outlier detection for the computed indices. A signal in the collected signal data set is determined to be detected on the basis of the threshold. A representation of the detected signal strength is provided on the basis of the computed indices.

Generating Damage Probability-Of-Detection Curves In Structural Health Monitoring Transducer Networks

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US Patent:
8069011, Nov 29, 2011
Filed:
Apr 15, 2008
Appl. No.:
12/103584
Inventors:
Bao Liu - Cupertino CA, US
Fu-Kuo Chang - Stanford CA, US
Assignee:
Acellent Technologies, Inc. - Sunnyvale CA
International Classification:
G06F 17/18
US Classification:
702181, 702 35, 702121, 702122, 702123, 702182, 702183, 702184, 702185, 702186, 702187, 702188, 702189, 702190, 73577
Abstract:
A method for automatically creating a probability of detection (POD) curve of an entire network of transducers monitoring and detecting damage in a structure is based on the POD of each of the individual actuator-sensor paths. These individual path PODs may be generated in different ways, such as by experimentation or simulation. This technique makes it possible to create the POD curve of a structural health monitoring (SHM) system for the detection of damages in structures.

Method And Apparatus For Loosening Of Fasteners On Structures

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US Patent:
8229680, Jul 24, 2012
Filed:
Apr 29, 2009
Appl. No.:
12/432659
Inventors:
Bao Liu - Cupertino CA, US
Lien Ouyang - Los Altos CA, US
Shawn J. Beard - Livermore CA, US
Irene Li - Stanford CA, US
Fu-Kuo Chang - Stanford CA, US
Assignee:
Acellent Technologies, Inc. - Sunnyvale CA
International Classification:
G01N 29/14
US Classification:
702 33, 702 56, 73 76, 324242, 324240, 324658
Abstract:
Methods and apparatuses for detecting fastener loosening. Sensors query a structure at a baseline value of an environment variable, such as temperature, and this baseline signal is stored for later use. Subsequently, users can query the structure remotely and at any time, and the signals from these queries are compared to the stored baseline signal. In some embodiments, an index is calculated, and the system determines that one or more fasteners have come loose if the calculated index exceeds a predetermined threshold value. It is desirable to select a time window within which the query signal is most sensitive to fastener loosening but least sensitive to variations in the environment variable. Accordingly, embodiments of the invention include methods and apparatuses for determining an optimal time window for use in calculating the above described index.

Method And Apparatus For Detecting Damage In Armor Structures

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US Patent:
8046177, Oct 25, 2011
Filed:
Apr 1, 2008
Appl. No.:
12/060799
Inventors:
Bao Liu - Cupertino CA, US
Irene Li - Stanford CA, US
Fu-Kuo Chang - Stanford CA, US
Assignee:
Acellent Technologies, Inc. - Sunnyvale CA
International Classification:
G01B 5/28
G01M 3/00
US Classification:
702 35, 73577
Abstract:
Detection of damage in armor structures, using networks of piezoelectric transducers. In particular, piezoelectric transducers can be placed at various points on the armor structure, effectively creating a number of paths between pairs of transducers. Each of these paths can be queried by transmitting an ultrasonic stress wave from one transducer to the other, and analyzing changes in the stress wave. The signal from the received stress wave can be time gated to remove crosstalk, and the resulting time gated signal can be analyzed for characteristics of damage. For instance, if the time gated signal is sufficiently attenuated, it can be determined that the armor structure has sustained damage to at least that region traversed by this particular path.

Detecting Damage In Metal Structures With Structural Health Monitoring Systems

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US Patent:
20080255778, Oct 16, 2008
Filed:
Apr 14, 2008
Appl. No.:
12/102767
Inventors:
Bao Liu - Cupertino CA, US
Fu-Kuo Chang - Stanford CA, US
Shawn J. Beard - Livermore CA, US
Irene Li - Stanford CA, US
International Classification:
G06F 19/00
US Classification:
702 35
Abstract:
A method useful in structural health monitoring (SHM) systems for detecting damages in metal structures includes extracting the zero-order symmetric and anti-symmetric mode signal components from each of a plurality of current sensor signals of an array of transducers mounted on the structure, matching the extracted signal components with corresponding signal components of a plurality of baseline sensor signals previously detected in the structure, computing respective indices Iand Ifor each of the matched extracted current and baseline signal components based on respective signal energies thereof, and determining the presence of a damage in the structure if either of the indices Iand Iof a plurality of neighboring sensor paths of the structure is greater than a selected threshold value.

Deal Stage Data Visualization And User Interface

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US Patent:
20150073848, Mar 12, 2015
Filed:
Sep 12, 2013
Appl. No.:
14/025743
Inventors:
- Redwood Shores CA, US
Dave Stephens - Half Moon Bay CA, US
Jeffrey Pease - San Francisco CA, US
Heather Weir - Sunnyvale CA, US
Daniel Valdivia Milanes - Belmont CA, US
Miguel Aramis Ramirez Ibarra - La Calma, MX
Bao Liu - Santa Clara CA, US
Assignee:
Oracle International Corporation - Redwood Shores CA
International Classification:
G06Q 10/06
US Classification:
705 715
Abstract:
Data visualizations and user interfaces help managers view the totality of deal opportunities in progress and identify potential shortfalls. A deal stage visualization includes deal stage regions corresponding with deal stages and arranged along a first axis. Deal icons represent individual pending deals and are assigned to one of the deal stages. The set of deal icons associated with each deal stage form a deal icon set. The deal stage visualization also includes a second axis representing aggregate values of the deal stages. Each deal icon set is associated with a display region having a displayed size along the second axis that is proportional to an aggregate value of its included deal icons. Different icon sets with different aggregate deal values will have different size scrollable display areas. The size of the display area associated with an icon set remains unchanged during scrolling.
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Bao Liang Liu from Foster City, CA, age ~50 Get Report