Search Patents
  • Logic design system for creating circuit configuration by generating parse tree from hardware description language and optimizing text level redundancy thereof
    Patent number: 5146583
    Abstract: An apparatus and method for translating a function description of a circuit presented in hardware description language includes parsing the function description of the circuit to generate a parse tree. The structure of the parse tree is deformed to optimize the test level redundancy of the function description to thereby generate a deformed parse tree. The deformed parse tree is then translated into function blocks representing a hardware configuration of the circuit set forth by the function description.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: September 8, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masahiko Matsunaka, Tamotsu Nishiyama, Masahiko Ueda
  • METHOD AND APPARATU TO DETERMINE ELECTRIC POWER NETWORK ANOMALIES USING A COORDINATED INFORMATION EXCHANGE AMONG SMART METERS
    Publication number: 20170170871
    Abstract: A system and method to produce an electric network from estimated line impedance and physical line length among smart meter devices is provided using communication between the smart meters. The smart meters: (1) synchronize time using GPS pps signals, which provide an accurate time stamp; (2) send/receive an identifiable signal through the same phase of electric networks; (3) identify other smart meters on the same phase lines by listening to the information signal on the same phase lines; and (4) calculate time-of-arrival of an identifiable signal from other smart meters. The time of arrival information is used to calculate the line length, which is then used to calculate impedance of a line and topology of the electric network. The system then constructs an electric network by combining geo-spatial information and tree-like usual connection information.
    Type: Application
    Filed: February 22, 2017
    Publication date: June 15, 2017
    Inventors: Aanchal Goyal, Aleksandr Y. Aravkin, Younghun Kim, Tarun Kumar
  • Decoration tree with inserted articles
    Patent number: 7241043
    Abstract: The trunks and/or branches of a decoration tree are made of “metal mesh/insulation/metal mesh” sandwiched structure. Ornamental articles are configured to be easily and rapidly inserted into the sandwiched structure to decorate the decoration tree. The two metal meshes are each coupled to one of the two electrodes of an electric power supply. The coaxial pin of each ornamental article is made coaxial to couple to the two metal meshes respectively, so that the ornamental article shines when it has been inserted in the trunks or branches of the tree.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: July 10, 2007
    Inventor: Jiahn-Chang Wu
  • Modular lighted tree
    Patent number: 9861147
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: January 9, 2018
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Method and apparatus to determine electric power network anomalies using a coordinated information exchange among smart meters
    Patent number: 9749010
    Abstract: A system and method to produce an electric network from estimated line impedance and physical line length among smart meter devices is provided using communication between the smart meters. The smart meters: (1) synchronize time using GPS pps signals, which provide an accurate time stamp; (2) send/receive an identifiable signal through the same phase of electric networks; (3) identify other smart meters on the same phase lines by listening to the information signal on the same phase lines; and (4) calculate time-of-arrival of an identifiable signal from other smart meters. The time of arrival information is used to calculate the line length, which is then used to calculate impedance of a line and topology of the electric network. The system then constructs an electric network by combining geo-spatial information and tree-like usual connection information.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: August 29, 2017
    Assignee: Utopus Insights, Inc.
    Inventors: Aanchal Goyal, Aleksandr Aravkin, Younghun Kim, Tarun Kumar
  • Modular lighted tree
    Patent number: 11815235
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: November 14, 2023
    Assignee: Willis Electric Co., Ltd
    Inventor: Johnny Chen
  • Method for Globally Optimizing Power Flows in Electric Networks
    Publication number: 20140052301
    Abstract: A power flow problem (OPF) in an electric power network is globally optimized using a branch and bound tree of nodes connected by edges. The BB initially includes at least a root node, and each node represents a feasible region of limits on voltages and powers. An upper bound on the OPF problem is solved for selected nodes using nonlinear programming, while a lower bound is solved using a convex relaxation. The lowest upper and lower bounds are updated using the current upper and lower bound. If a difference between the lowest upper and lowest lower bound is less than a threshold, then outputting the voltages and the powers for the electric power network as represented by the feasibility region for the selected node. Otherwise, the feasible region of the node is partitioned to replace the node. The process is repeated until the tree is empty.
    Type: Application
    Filed: August 16, 2012
    Publication date: February 20, 2014
    Inventors: Arvind Raghunathan, Ajit Gopalakrishnan, Daniel Nikolaev Nikovski
  • Modular lighted tree with trunk electrical connectors
    Patent number: 10721981
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: July 28, 2020
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Modular lighted tree with internal electrical connection system
    Patent number: 10070675
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: September 11, 2018
    Assignee: WILLIS ELECTRIC CO., LTD.
    Inventor: Johnny Chen
  • Modular lighted tree
    Patent number: 11419374
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: August 23, 2022
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Modular tree with rotation-lock electrical connectors
    Patent number: 11006687
    Abstract: A rotation-locking lighted artificial tree that includes a first and second portion. The first portion includes a trunk, first electrical connector, and first wiring harness. The first electrical connector includes a first body portion and a first electrical contact set. The first body portion includes multiple projections electrically isolated from the first electrical contact set. The second tree portion includes a second electrical connector and a second wiring harness. The second electrical connector includes a second body portion and a second electrical contact set, the second body portion including multiple recesses. When the first tree portion couples to the second, the first and second electrical contact sets form an electrical connection and the recesses of the second body portion receive the projections of the first body portion, thereby electrically connecting and mechanically coupling the first tree portion to the second tree portion.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: May 18, 2021
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Modular lighted tree
    Patent number: 10426208
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 1, 2019
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Modular lighted tree
    Patent number: 12000551
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: June 4, 2024
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Methods for generating a reconstructed tree structure from medical image data
    Patent number: 8638999
    Abstract: A computer-implemented method of post-processing medical image data is provided. The method includes receiving tracked image data representative of multiple blood vessels, generating a binary tree structure for the multiple blood vessels based on a parent-child relationship between branches of the multiple blood vessels, generating a likelihood model for determining a validity of the branches of the multiple blood vessels, and generating a likelihood score for each branch based on the respective branch's compatibility with the likelihood model. The method also includes generating a reconstructed tree for the multiple blood vessels. Compatible branches are included in the reconstructed tree, while invalid branches are not included in the reconstructed tree.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: January 28, 2014
    Assignee: General Electric Company
    Inventors: Ziyue Xu, Fei Zhao, Roshni Rustom Bhagalia, Bipul Das
  • Method and apparatus to determine electric power network anomalies using a coordinated information exchange among smart meters
    Patent number: 9564945
    Abstract: A system and method to produce an electric network from estimated line impedance and physical line length among smart meter devices is provided using communication between the smart meters. The smart meters: (1) synchronize time using GPS pps signals, which provide an accurate time stamp; (2) send/receive an identifiable signal through the same phase of electric networks; (3) identify other smart meters on the same phase lines by listening to the information signal on the same phase lines; and (4) calculate time-of-arrival of an identifiable signal from other smart meters. The time of arrival information is used to calculate the line length, which is then used to calculate impedance of a line and topology of the electric network. The system then constructs an electric network by combining geo-spatial information and tree-like usual connection information.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: February 7, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Aanchal Goyal, Aleksandr Aravkin, Younghun Kim, Tarun Kumar
  • Modular tree with rotation-lock electrical connectors
    Patent number: 9179793
    Abstract: A rotation-locking lighted artificial tree that includes a first and second portion. The first portion includes a trunk, first electrical connector, and first wiring harness. The first electrical connector includes a first body portion and a first electrical contact set. The first body portion includes multiple projections electrically isolated from the first electrical contact set. The second tree portion includes a second electrical connector and a second wiring harness. The second electrical connector includes a second body portion and a second electrical contact set, the second body portion including multiple recesses. When the first tree portion couples to the second, the first and second electrical contact sets form an electrical connection and the recesses of the second body portion receive the projections of the first body portion, thereby electrically connecting and mechanically coupling the first tree portion to the second tree portion.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: November 10, 2015
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Modular lighted tree
    Patent number: 10881158
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: January 5, 2021
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Tree planter
    Patent number: 4403427
    Abstract: Tree planter for mounting on a truck chassis, the tree planter including a four-spade digger reciprocally mounted on an end of an extendable boom, the boom movable at the other end on a self-aligning bushing, the bushing secured in a hoist frame. The boom includes three attached hydraulic cylinders for boom up/down hoist motion, boom roll/twist motion and boom side/side motion, and a fourth internal boom extension hydraulic cylinder for telescoping the boom between a retracted and extended position. The four hydraulic cylinders position the digger with all degrees of radial and axial freedom. A fifth hydraulic cylinder controls tilt of the digger with respect to the boom.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: September 13, 1983
    Inventor: Arthur Dahlquist
  • Modular lighted tree with trunk electrical connectors
    Patent number: 8974072
    Abstract: A lighted artificial tree includes a first tree portion including a first trunk portion, first branches joined to the first trunk portion, and a first light string. The first trunk portion has a trunk connector and a first trunk wiring assembly, the first trunk wiring assembly is electrically connectable to the first light string and the trunk connector, and at least a portion of the first wiring assembly is located inside the first portion. The second tree portion includes a second trunk portion, second branches, and a second light string. The second trunk portion has a trunk connector and a second trunk wiring assembly, the second trunk wiring assembly electrically connectable to the second lighting string and the trunk connector. The second tree portion may be mechanically coupled and electrically connected to the first tree portion by coaxially coupling the first trunk portion to the second trunk portion.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 10, 2015
    Assignee: Willis Electric Co., Ltd.
    Inventor: Johnny Chen
  • Identifying images using a tree structure
    Patent number: 6345110
    Abstract: To identify an image characteristic, a tree structured code having coding representing each of a plurality of training images is stored in a memory. Coding representing a sample image, not included in the plurality of training images, is compared to the tree structured code to identify the training image coding in the structured tree code closest to the sample image coding. A characteristic of the sample image is identified based upon the training image represented by the closest training image coding.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: February 5, 2002
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Sourabh A. Niyogi, William T. Freeman
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