Patents by Inventor Minh Quach
Minh Quach 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: 12088458Abstract: Controller devices may be communicatively coupled to distributed devices in a workspace. The controller devices may be positioned in various geographic locations relative to locations of the distributed devices within the workspace. Each of the controller devices may be utilized to maintain an account of, and locally control, one or more of the distributed devices. Portal devices may utilize the controller devices to manage the distributed devices by configuring, controlling, and updating the controller devices. The control devices may be utilized to establish communication channels between the portal devices and the distributed devices to provide access for a user to the distributed devices. The communication channels may be accessible to user devices based on security credentials that are modified in real-time or near real-time.Type: GrantFiled: March 10, 2021Date of Patent: September 10, 2024Assignee: Amazon Technologies, Inc.Inventors: Chase Johnson, Tri Minh Quach, Maximilian Vieweg
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Publication number: 20240202287Abstract: The present disclosure relates to computer-implemented methods, software, and systems for identifying cyclic patterns in data observations collected as time series with irregular time spacing between each other. Distribution of the time occurrences associated with the data observations is analyzed to identify a cyclic pattern. A list of time gaps between each of the data observations is defined. Time gaps are defined according to a common time measure. The time gaps of the list of time gaps are evaluated using two reader operators that separately browse through the list of time gaps. A cyclic pattern is identified in the list of time gaps based on the iteratively evaluating. The identifying comprises identifying (i) a length of cycle within the cycle patterns and (ii) an index element of a time gap of the list of time gaps.Type: ApplicationFiled: December 15, 2022Publication date: June 20, 2024Inventor: Nai Minh Quach
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Publication number: 20240185143Abstract: Optimizing a time series forecasting model, selects a subset of original influencer variables. An original time series forecasting model comprising an original set of influencer variables, is received. Contributions of the influencer variables to the model are calculated (optionally including regularization). Variables falling below a cumulative contribution threshold, are excluded. A first new time series forecasting model, created from the remaining variables, is stored. If the first new time series forecasting model is validated based upon a performance horizon, iteration occurs to further reduce a number of influencer variables and generate another new time series forecast model. If the first new time series forecasting model is not validated under the performance horizon, the cumulative contribution threshold is lowered to exclude fewer of the original set of influencer variables and generate another new model.Type: ApplicationFiled: December 5, 2022Publication date: June 6, 2024Inventors: Nai Minh Quach, David Guillemet
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Patent number: 11772906Abstract: A control system for an automated singulation system is provided. The control system detects a presence of a first item on a first conveyor and detects a presence of a second item on a second conveyor while the first item is present on the first conveyor. The second conveyor transfers items onto the first conveyor and is at a lower height than the second conveyor. The first conveyor is oriented perpendicularly with respect to the second conveyor. In response to detecting the presence of the second item, a location of the first item along a length of the first conveyor is determined. The first conveyor and the second conveyor are controlled based at least on the location of the first item.Type: GrantFiled: December 6, 2021Date of Patent: October 3, 2023Assignee: Amazon Technologies, Inc.Inventors: Longyu Zhao, Tri Minh Quach, Xujie Wang, Canaan Seaton, Joseph Eaton
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Patent number: 11691827Abstract: An automated system for singulating items is provided. The automated system includes a singulation apparatus. The singulation apparatus includes multiple conveyor modules and a vertical frame structure. Each of the multiple conveyor modules has an identical physical structure. The vertical frame structure provides multiple horizontal mounting locations, each at a different height along the vertical frame structure. Each of the conveyor modules is mounted to a different one of the multiple horizontal mounting locations.Type: GrantFiled: February 4, 2021Date of Patent: July 4, 2023Assignee: Amazon Technologies, Inc.Inventors: Longyu Zhao, Tri Minh Quach, Xujie Wang, Bryan Beard, John Swinford
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Publication number: 20220089379Abstract: A control system for an automated singulation system is provided. The control system detects a presence of a first item on a first conveyor and detects a presence of a second item on a second conveyor while the first item is present on the first conveyor. The second conveyor transfers items onto the first conveyor and is at a lower height than the second conveyor. The first conveyor is oriented perpendicularly with respect to the second conveyor. In response to detecting the presence of the second item, a location of the first item along a length of the first conveyor is determined. The first conveyor and the second conveyor are controlled based at least on the location of the first item.Type: ApplicationFiled: December 6, 2021Publication date: March 24, 2022Inventors: Longyu ZHAO, Tri Minh QUACH, Xujie WANG, Canaan SEATON, Joseph EATON
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Patent number: 11192726Abstract: A control system for an automated singulation system is provided. The control system detects a presence of a first item on a first conveyor and detects a presence of a second item on a second conveyor while the first item is present on the first conveyor. The second conveyor transfers items onto the first conveyor and is at a lower height than the second conveyor. The first conveyor is oriented perpendicularly with respect to the second conveyor. In response to detecting the presence of the second item, a location of the first item along a length of the first conveyor is determined. The first conveyor and the second conveyor are controlled based at least on the location of the first item.Type: GrantFiled: September 21, 2020Date of Patent: December 7, 2021Assignee: Amazon Technologies, Inc.Inventors: Longyu Zhao, Tri Minh Quach, Xujie Wang, Canaan Seaton, Joseph Eaton
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Publication number: 20210155414Abstract: An automated system for singulating items is provided. The automated system includes a singulation apparatus. The singulation apparatus includes multiple conveyor modules and a vertical frame structure. Each of the multiple conveyor modules has an identical physical structure. The vertical frame structure provides multiple horizontal mounting locations, each at a different height along the vertical frame structure. Each of the conveyor modules is mounted to a different one of the multiple horizontal mounting locations.Type: ApplicationFiled: February 4, 2021Publication date: May 27, 2021Inventors: Longyu ZHAO, Tri Minh QUACH, Xujie WANG, Bryan BEARD, John SWINFORD
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Patent number: 10961060Abstract: An automated system for singulating items is provided. The automated system includes a singulation apparatus. The singulation apparatus includes multiple conveyor modules and a vertical frame structure. Each of the multiple conveyor modules has an identical physical structure. The vertical frame structure provides multiple horizontal mounting locations, each at a different height along the vertical frame structure. Each of the conveyor modules is mounted to a different one of the multiple horizontal mounting locations.Type: GrantFiled: December 13, 2018Date of Patent: March 30, 2021Assignee: Amazon Technologies, Inc.Inventors: Longyu Zhao, Tri Minh Quach, Xujie Wang, Bryan Beard, John Swinford
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Publication number: 20210002082Abstract: A control system for an automated singulation system is provided. The control system detects a presence of a first item on a first conveyor and detects a presence of a second item on a second conveyor while the first item is present on the first conveyor. The second conveyor transfers items onto the first conveyor and is at a lower height than the second conveyor. The first conveyor is oriented perpendicularly with respect to the second conveyor. In response to detecting the presence of the second item, a location of the first item along a length of the first conveyor is determined. The first conveyor and the second conveyor are controlled based at least on the location of the first item.Type: ApplicationFiled: September 21, 2020Publication date: January 7, 2021Inventors: Longyu ZHAO, Tri Minh QUACH, Xujie WANG, Canaan SEATON, Joseph EATON
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Patent number: 10781053Abstract: A control system for an automated singulation system is provided. The control system detects a presence of a first item on a first conveyor and detects a presence of a second item on a second conveyor while the first item is present on the first conveyor. The second conveyor transfers items onto the first conveyor and is at a lower height than the second conveyor. The first conveyor is oriented perpendicularly with respect to the second conveyor. In response to detecting the presence of the second item, a location of the first item along a length of the first conveyor is determined. The first conveyor and the second conveyor are controlled based at least on the location of the first item.Type: GrantFiled: December 13, 2018Date of Patent: September 22, 2020Assignee: Amazon Technologies, Inc.Inventors: Longyu Zhao, Tri Minh Quach, Xujie Wang, Canaan Seaton, Joseph Eaton
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Patent number: 7673234Abstract: A method and system are provided for determining metadata to be assigned to a document. A document is identified to be published to a collection of documents. A category for publishing the document to the collection is automatically recommended using a text classifier. At least one category for the document may be selected, and the selected category is assigned as metadata for the document. A method and system are also provided for constructing a search for a document in a collection of documents. A search query is entered for a document in a collection of documents. A search category for searching for the document in the collection of documents is automatically recommended using a text classifier. At least one search category for searching for the document is selected.Type: GrantFiled: March 11, 2002Date of Patent: March 2, 2010Assignee: The Boeing CompanyInventors: Anne S. W. Kao, Stephen R. Poteet, Lesley Hong-Minh Quach, Steven D. Woods
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Publication number: 20070083339Abstract: Disclosed are various devices, systems and methods for testing broadband differential coupling circuits that are capable of measuring the amount of extraneous interference and noise in such circuits. In preferred embodiments, NEXT and FEXT crosstalk performance characteristics of differential coupling circuits are provided.Type: ApplicationFiled: September 29, 2005Publication date: April 12, 2007Inventors: T. Sawyer, Minh Quach
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Publication number: 20070073499Abstract: Frequency domain responses associated, respectively, with a fixture having a DUT connected to it and a fixture without the DUT are converted into respective time-domain responses that are then used to construct respective time-domain circuit models. The time-domain circuit model corresponding to the fixture by itself is subsequently de-embedded from the time-domain circuit model corresponding to the fixture and the DUT connected to it to obtain a time-domain circuit model for the DUT by itself. The time-domain circuit model for the DUT is operated over a range of frequencies as the frequency domain response is measured. The s-parameters for the DUT are then computer from the frequency domain response for the DUT.Type: ApplicationFiled: September 27, 2005Publication date: March 29, 2007Inventors: T. Sawyer, Minh Quach
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Publication number: 20030172357Abstract: A method and system are provided for determining metadata to be assigned to a document. A document is identified to be published to a collection of documents. A category for publishing the document to the collection is automatically recommended using a text classifier. At least one category for the document may be selected, and the selected category is assigned as metadata for the document. A method and system are also provided for constructing a search for a document in a collection of documents. A search query is entered for a document in a collection of documents. A search category for searching for the document in the collection of documents is automatically recommended using a text classifier. At least one search category for searching for the document is selected.Type: ApplicationFiled: March 11, 2002Publication date: September 11, 2003Inventors: Anne S.W. Kao, Stephen R. Poteet, Lesley Hong-Minh Quach, Steven D. Woods