Patents by Inventor Patrick Chiu

Patrick Chiu 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: 10412658
    Abstract: The present invention discloses methods and network nodes for distributing data packets through a plurality of wide area network (WAN) interfaces and through a gateway at a network node. In order to determine whether the gateway is a slave gateway, identification request is sent to the gateway by a network node. When the gateway is configured as a slave gateway, transmitting instruction to the gateway. Further, weighting may be assigned to the WAN interfaces. Further, connections may be established through WAN interfaces of the network node and WAN interfaces of the gateway. The connections may further be aggregated together to form an aggregated connection.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: September 10, 2019
    Assignee: PISMO LABS TECHNOLOGY LIMITED
    Inventors: Patrick Ho Wai Sung, Kit Wai Chau, Wan Chun Leung, Kam Chiu Ng
  • Publication number: 20190268181
    Abstract: Methods and systems for transmitting and receiving data between a first node and a second node through a first tunnel group and a second tunnel group respectively. The first node transmits data to the second node mainly through a first tunnel group and receives data from the second node mainly through a second tunnel group. In some embodiments, the first node receives first IP packets from one of its LAN interfaces and then transmits encapsulated first IP packets and then are transmitted mainly through a first one or more WAN interfaces to the second node. The first node receives encapsulated second IP packets mainly from the second node through a second one or more of its WAN interfaces. Second IP packets are then decapsulated and transmitted through one of the LAN interfaces of the first node.
    Type: Application
    Filed: May 13, 2019
    Publication date: August 29, 2019
    Applicant: PISMO LABS TECHNOLOGY LIMITED
    Inventors: Patrick Ho Wai Sung, Kit Wai Chau, Kam Chiu Ng, Wan Chun Leung, Ying Kwan
  • Publication number: 20190258311
    Abstract: In a telepresence scenario with remote users discussing a document or a slide, it can be difficult to follow which parts of the document are being discussed. One way to address this problem is to provide feedback by showing where the user's hand is pointing at on the document, which also enables more expressive gestural communication than a simple remote cursor. An important practical problem is how to transmit this remote feedback efficiently with high resolution document images. This is not possible with standard videoconferencing systems which have insufficient resolution. We propose a method based on using hand skeletons to provide the feedback. The skeleton can be captured using a depth camera or a webcam (with a deep network algorithm), and the small data can be transmitted at a high frame rate (without a video codec).
    Type: Application
    Filed: February 21, 2018
    Publication date: August 22, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Chelhwon Kim, Patrick Chiu, Joseph Andrew Alkuino de la Pena, Laurent Denoue, Jun Shingu
  • Publication number: 20190190834
    Abstract: Methods and systems for transmitting data packets through a selected connection that the first data packet of a data session satisfies a match condition. The match condition is received through a user interface. When data packets of the data session are received, the data packets will then be transmitted through a selected connection. The selected connection is selected from connections based on a connection selection criteria. Further differentiated services code point (DSCP) of first data packet is changed when sent by a computing device. After a network node receives the first data packet, then resets the DSCP value before sending the first data packet.
    Type: Application
    Filed: September 12, 2017
    Publication date: June 20, 2019
    Applicant: Pismo Labs Technology Limited
    Inventors: Patrick Ho Wai SUNG, Wan Chun LEUNG, Alex Wing Hong CHAN, Kam Chiu NG
  • Publication number: 20190190835
    Abstract: Methods and systems for transmitting data packets of a data session through a selected connection at a network node. The network node determines number of possible connections. When data packets belong to a new data session, a connection is selected to be the selected connection based on connection selection criteria. Further data packets belonging to the data session will be transmitted through the selected connection. A connection selection criteria include selecting a connection with the lowest latency among all connections. Evaluation packets based on the first data packet of the new data session are used to evaluate latency.
    Type: Application
    Filed: September 12, 2017
    Publication date: June 20, 2019
    Applicant: Pismo Labs Technology Limited
    Inventors: Patrick Ho Wai SUNG, Wan Chun LEUNG, Alex Wing Hong CHAN, Kam Chiu NG
  • Publication number: 20190190658
    Abstract: The present invention discloses methods and systems for managing an error correction mode at a first communications router. The first communication router transmits data packets to a second communications router and stores the first data packet in a local storage medium. When a delay inquiry message is received from the second communications router, the first communications router activates the error correction mode. When the error correction mode is activated, the first data packet is retransmitted to the second communications router and an error correction packet corresponding to the first data packet is also transmitted. When a back-to-normal message is received from the second communications router, the first communications router deactivates the error correction mode. The back-to-normal message indicates that the first communications router no longer needs to be in error correction mode.
    Type: Application
    Filed: February 25, 2019
    Publication date: June 20, 2019
    Applicant: Pismo Labs Technology Limited
    Inventors: Patrick Ho Wai Sung, Kam Chiu Ng, Ho Ming Chan
  • Patent number: 10298907
    Abstract: A method of sharing documents is provided. The method includes capturing first image data associated with a document, detecting content of the document based on the captured first image data, capturing second image data associated with an object controlled by a user moved relative to the document, determining a relative position between the document and the object, combining a portion of the second image data with the first image data based on the determined relative position to generate a combined image signal that is displayed, and emphasizing a portion of the content in the displayed combined image signal, based on the relative position.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: May 21, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Patrick Chiu, Sven Kratz, Shingu Jun, Laurent Denoue
  • Patent number: 10291431
    Abstract: Methods and systems for transmitting and receiving data between a first node and a second node through a first tunnel group and a second tunnel group respectively. The first node transmits data to the second node mainly through a first tunnel group and receives data from the second node mainly through a second tunnel group. In some embodiments, the first node receives first IP packets from one of its LAN interfaces and then transmits encapsulated first IP packets and then are transmitted mainly through a first one or more WAN interfaces to the second node. The first node receives encapsulated second IP packets mainly from the second node through a second one or more of its WAN interfaces. Second IP packets are then de-capsulated and transmitted through one of the LAN interfaces of the first node.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: May 14, 2019
    Assignee: PISMO LABS TECHNOLOGY LIMITED
    Inventors: Patrick Ho Wai Sung, Kit Wai Chau, Kam Chiu Ng, Wan Chun Leung, Ying Kwan
  • Publication number: 20190095073
    Abstract: A method of visualizing relationship data in a network connecting an entity of a first type with an entity of a second type is provided. The method includes detecting, within the network, a subnetwork pattern representing at least one relationship satisfying a condition, generating a visualization based on the detected subnetwork pattern. The visualization includes a first region representative of the first type of entity, a second region representative of the second type of entity, and a linking region connecting the first region to the second region and providing information about the at least one relationship satisfying the condition.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 28, 2019
    Inventors: Jian Zhao, Francine Chen, Patrick Chiu
  • Publication number: 20190095503
    Abstract: A method of visualizing search results is provided. The method includes receiving a content feature, detecting, within a network, a subnetwork pattern representing a relationship satisfying a condition and associated with an entity of a first or a second type, the entity being associated with the content feature, and generating a visualization based on the detected subnetwork pattern. The visualization includes a first region representative of the first type of entity, a second region representative of the second type of entity, and a linking region connecting the first region to the second region and providing information about the represented relationship.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 28, 2019
    Inventors: Jian ZHAO, Francine CHEN, Patrick CHIU
  • Publication number: 20180349448
    Abstract: A method of visualizing relationship data is illustrated. The method includes receiving relationship data comprising a first type of entities, a second type of entities, and data representative of relationships between an entity of the first type and an entity of the second type, generating, based on the data representative of relationships, a bicluster connecting the entity of the first type to the entity of the second type, and generating a visualization based on the bicluster generated, wherein the visualization includes a first column representative of the first type of entities, and a second column representative of the second type of entities, wherein each row of the visualization corresponds to the generated bicluster.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 6, 2018
    Inventors: Jian Zhao, Francine Chen, Patrick Chiu
  • Publication number: 20180307316
    Abstract: A method at a computer system includes obtaining an electronic document comprising document elements, and injecting into the document in association with one of the document elements one or more hotspot attributes, the hotspot attributes defining attributes of a hotspot that is displayable in conjunction with the document element when the document is displayed, the hotspot attributes being associated with predefined physical gestures and respective document actions; such that the hotspot, when displayed as part of a displayed document, indicates that a viewer of the displayed document can interact with the displayed document using the predefined physical gestures (i) performed at a position that overlap a displayed version of the document in a field of view of a camera system and (ii) captured by the camera system, wherein a physical gesture results in a respective document action being performed on the displayed document.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 25, 2018
    Inventors: Patrick Chiu, Joseph Andrew Alkuino de la Peña, Laurent Denoue, Chelhwon Kim
  • Publication number: 20180255287
    Abstract: Systems and methods for generating high resolution dewarped images for an image of a document captured by a 3D stereo digital camera system, or a mobile phone camera capturing a sequence of images, which may improve OCR performance. Example embodiments include a compact stereo camera with two sensors mounted at fixed locations, and a multi-resolution pipeline to process and to dewarp the images using a three dimensional surface model based on curve profiles of the computed depth map. Example embodiments also include a mobile phone including a camera which captures a sequence of images, and a processor which computes a disparity map using the captured sequence of image frames, computes a model of the at least one document page by generating a cylindrical three dimensional geometric surface using the computed disparity map, and renders a dewarped image from the computed model.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Patrick CHIU, Michael Patrick CUTTER, Chelhwon KIM, Surendar CHANDRA
  • Patent number: 9992471
    Abstract: Systems and methods for generating high resolution dewarped images for an image of a document captured by a 3D stereo digital camera system, or a mobile phone camera capturing a sequence of images, which may improve OCR performance. Example embodiments include a compact stereo camera with two sensors mounted at fixed locations, and a multi-resolution pipeline to process and to dewarp the images using a three dimensional surface model based on curve profiles of the computed depth map. Example embodiments also include a mobile phone including a camera which captures a sequence of images, and a processor which computes a disparity map using the captured sequence of image frames, computes a model of the at least one document page by generating a cylindrical three dimensional geometric surface using the computed disparity map, and renders a dewarped image from the computed model.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: June 5, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Patrick Chiu, Michael Patrick Cutter, Chelhwon Kim, Surendar Chandra
  • Publication number: 20180046992
    Abstract: Systems and methods for account reconciliation using a distributed ledger are disclosed. In one embodiment, a method for account reconciliation using a distributed ledger may include: (1) a payment sending financial institution receiving a transaction involving an account maintained by the payment sending financial institution for a payment receiving financial institution; (2) the payment sending financial institution communicating the transaction to the payment receiving financial institution using a transaction network; (3) the payment sending financial institution writing the transaction as a first ledger entry to the payment sending financial institution's copy of a distributed transaction ledger; (4) the payment sending financial institution receiving a second ledger entry from the payment receiving financial institution; and (5) the payment sending financial institution reconciling the account using the first ledger entry and the second ledger entry.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 15, 2018
    Inventors: Kevin T. HANRAHAN, Daniel K. CHAU, Patrick CHIU, Lance CALAMITA, David John WALSH, Tommy Weihua ZHU
  • Patent number: 9849693
    Abstract: Computerized systems and computer-implemented methods that enable printing on a large solid surface, such as a floor, wall, or ceiling using mobile printer heads guided by coded light. In one implementation, a user points a projector onto the printing surface to project a sequence of images with a unique temporal identifier (ID) for each pixel, wherein different space partitions are associated with different pixel IDs. The mechanical transmissions of the conventional printers are replaced with the aforesaid coded light used in conjunction with small mobile printer heads equipped with light sensors, while the coded light is used to guide the printer heads' movements during the printing process.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: December 26, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Qiong Liu, Shang Ma, Donald Kimber, Patrick Chiu, Sven Kratz
  • Publication number: 20170310920
    Abstract: A method of sharing documents is provided. The method includes capturing first image data associated with a document, detecting content of the document based on the captured first image data, capturing second image data associated with an object controlled by a user moved relative to the document, determining a relative position between the document and the object, combining a portion of the second image data with the first image data based on the determined relative position to generate a combined image signal that is displayed, and emphasizing a portion of the content in the displayed combined image signal, based on the relative position.
    Type: Application
    Filed: April 20, 2016
    Publication date: October 26, 2017
    Inventors: Patrick CHIU, Sven KRATZ, Shingu JUN, Laurent DENOUE
  • Publication number: 20170308550
    Abstract: A computer-implemented method being performed in a computerized system comprising a processing unit, a memory, a projector and a camera, the projector and the camera positioned above a surface, the computer-implemented method comprising: using the camera to acquire an image of a document placed on the surface; using the acquired image of the document to obtain at least a portion of a text of the document; using the obtained at least the portion of the text of the document to find a plurality of documents relevant to the document; using the obtained at least the portion of the text of the document to find a plurality of persons relevant to the document; and using the projector to display at least one of a first plurality of thumbnail images corresponding to the plurality of relevant documents and at least one of a second plurality of thumbnail images corresponding to the plurality of relevant persons.
    Type: Application
    Filed: April 25, 2016
    Publication date: October 26, 2017
    Inventors: Patrick Chiu, Yifan Zhang
  • Patent number: 9747499
    Abstract: Described are systems and methods for recognizing paper documents on a tabletop using an overhead camera mounted on pan-tilt servos. The described automated system first finds paper documents on a cluttered desk based on a text probability map, constructed using multiple images acquired at fixed grid positions, and then captures a sequence of high-resolution overlapping frames of the located document(s), which are then fused together and perspective-rectified, using computed homography, to reconstruct a high quality and fronto-parallel document image that is of sufficient quality required for optical character recognition. The extracted textual information may be used, for example, for indexing and search, document repository and/or language translation applications.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: August 29, 2017
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Chelhwon Kim, Patrick Chiu, Hao Tang
  • Publication number: 20170228445
    Abstract: Systems and methods disclosed herein present topic-centric visualizations of collaboration data. An example method includes: obtaining a set of topics based on an analysis of collaboration data and displaying an interactive visualization that includes first UI elements that correspond to each topic (first UI elements corresponding to similar topics are positioned close together). In response to receiving a specified time period for the interactive visualization, the method includes: identifying a subset of the plurality of persons that are associated with the specified time period. The method additionally includes: obtaining a first set of connections between the set of topics and the subset and a second set of connections between related persons in the subset. The method further includes: updating the interactive visualization to include second UI elements corresponding to each respective person of the subset and visual representations of each connection in the first and second sets.
    Type: Application
    Filed: February 10, 2016
    Publication date: August 10, 2017
    Inventors: Patrick Chiu, Francine R. Chen