Patents by Inventor Lih-Yuan Lin
Lih-Yuan Lin 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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Publication number: 20230157144Abstract: A method includes forming a barrier layer on a substrate, removing a portion of the barrier layer to yield a patterned barrier layer and an exposed portion of the substrate within a hole in the patterned barrier layer, forming a first portion of a perovskite on the patterned barrier layer and a second portion of the perovskite on the exposed portion of the substrate, and removing the patterned barrier layer, thereby removing the first portion of the perovskite.Type: ApplicationFiled: April 1, 2021Publication date: May 18, 2023Inventors: Lih-Yuan LIN, Chen ZOU, Ethan G. KEELER
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Publication number: 20210098966Abstract: Within examples, a laser includes a first electrode and a second electrode; a first transport layer and a second transport layer that are between the first electrode and the second electrode; a gain layer positioned between the first transport layer and the second transport layer, where the gain layer comprises a material having a Perovskite crystal structure; and a substrate on which the first electrode, the second electrode, the first transport layer, the second transport layer, and the gain layer are formed, where a distributed feedback (DFB) waveguide is formed within the first transport layer, and where the laser is configured such that a current flowing through the gain layer between the first electrode and the second electrode causes the gain layer to emit coherent light. Examples also include methods for fabricating the laser, as well as additional lasers and methods for forming those lasers.Type: ApplicationFiled: May 10, 2019Publication date: April 1, 2021Inventors: Lih-Yuan Lin, Chen Zou
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Patent number: 10571673Abstract: Devices and techniques for a particle positioning device are generally described. In some examples, a fluid may be introduced to a channel formed on a first surface of a substrate. In various examples, the channel may comprise a periodic dielectric structure etched in a first surface of the substrate and a channel wall material. In some examples, a laser beam may be directed through the channel wall material to the periodic dielectric structure. In various further examples, the laser beam may be reflected from the periodic dielectric structure into an interior region of the channel to form a focal enhancement region of the laser beam in the interior region of the channel adjacent to the periodic dielectric structure. In various examples, a force may be exerted on a particle suspended in the fluid with an electric field gradient generated by the focal enhancement region of the laser beam.Type: GrantFiled: April 17, 2017Date of Patent: February 25, 2020Assignee: UNIVERSITY OF WASHINGTONInventors: Lih-Yuan Lin, Ethan G. Keeler
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Publication number: 20200056984Abstract: An optical measuring device includes a light source, an optical sensing module, a positioning frame, a carrier, and a linking device. The optical sensing module includes a plurality of optical sensors. The light source and the optical sensing module are relatively disposed on the positioning frame. The carrier includes a plurality of hole rows, and the hole rows are arranged along a predetermined direction. Each of the hole rows includes a plurality of containing concaves for containing a measured object. The linking device is connected to the positioning frame and for driving the light source and the optical sensing module to move along the predetermined direction. The light source emits a light toward a side of the carrier, the light passes through the containing concaves to form a plurality of measured lights, and each of the optical sensors receives each of the measured lights.Type: ApplicationFiled: May 13, 2019Publication date: February 20, 2020Inventors: Lih-Yuan LIN, Po-Jui CHEN
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Patent number: 10122446Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a central controller that performs operations including monitoring multiple network nodes, at least some of the network nodes being in communication with others through respective point-to-point links. Each point-to-point link includes a respective free space optical channel. The central controller detects optical received signal strength of a free space optical channel falling below a certain level and provides control signals to reconfigure the multiple network nodes. Signals are re-routed along one of the respective point-to-point links through other network nodes responsive to detecting the optical received signal strength falling below the certain level Other embodiments are disclosed.Type: GrantFiled: July 15, 2016Date of Patent: November 6, 2018Assignee: AT&T Intellectual Property II, L.P.Inventors: David M. Britz, Jeevan Dodley, Lih-Yuan Lin, Robert R. Miller
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Publication number: 20170299494Abstract: Devices and techniques for a particle positioning device are generally described. In some examples, a fluid may be introduced to a channel formed on a first surface of a substrate. In various examples, the channel may comprise a periodic dielectric structure etched in a first surface of the substrate and a channel wall material. In some examples, a laser beam may be directed through the channel wall material to the periodic dielectric structure. In various further examples, the laser beam may be reflected from the periodic dielectric structure into an interior region of the channel to form a focal enhancement region of the laser beam in the interior region of the channel adjacent to the periodic dielectric structure. In various examples, a force may be exerted on a particle suspended in the fluid with an electric field gradient generated by the focal enhancement region of the laser beam.Type: ApplicationFiled: April 17, 2017Publication date: October 19, 2017Inventors: Lih-Yuan Lin, Ethan G. Keeler
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Patent number: 9571190Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a central controller that executes instructions facilitating performance of operations including monitoring multiple network nodes, at least some of the network nodes being in communication with others through respective point-to-point links. Each point-to-point link includes a respective free space optical channel. The central controller detects optical received signal strength of a free space optical channel falling below a certain level and provides control signals to reconfigure the multiple network nodes. Signals are re-routed along one of the respective point-to-point links through other network nodes responsive to detecting the optical received signal strength falling below the certain level Other embodiments are disclosed.Type: GrantFiled: February 25, 2014Date of Patent: February 14, 2017Assignee: AT&T Intellectual Property II, LPInventors: David M. Britz, Jeevan Dodley, Lih-Yuan Lin, Robert R. Miller
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Publication number: 20160329959Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a central controller that executes instructions facilitating performance of operations including monitoring multiple network nodes, at least some of the network nodes being in communication with others through respective point-to-point links. Each point-to-point link includes a respective free space optical channel. The central controller detects optical received signal strength of a free space optical channel falling below a certain level and provides control signals to reconfigure the multiple network nodes. Signals are re-routed along one of the respective point-to-point links through other network nodes responsive to detecting the optical received signal strength falling below the certain level Other embodiments are disclosed.Type: ApplicationFiled: July 15, 2016Publication date: November 10, 2016Inventors: David M. Britz, JEEVAN DODLEY, LIH-YUAN LIN, ROBERT R. MILLER
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Publication number: 20140226976Abstract: A system that incorporates teachings of the subject disclosure may include, for example, a central controller that executes instructions facilitating performance of operations including monitoring multiple network nodes, at least some of the network nodes being in communication with others through respective point-to-point links. Each point-to-point link includes a respective free space optical channel. The central controller detects optical received signal strength of a free space optical channel falling below a certain level and provides control signals to reconfigure the multiple network nodes. Signals are re-routed along one of the respective point-to-point links through other network nodes responsive to detecting the optical received signal strength falling below the certain level Other embodiments are disclosed.Type: ApplicationFiled: February 25, 2014Publication date: August 14, 2014Applicant: AT&T Intellectual Property II, LPInventors: David M. Britz, Jeevan Dodley, Lih-Yuan Lin, Robert R. Miller
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Patent number: 8682171Abstract: A communication system includes a plurality of nodes and a plurality of point-to-point links that interconnect the plurality of nodes into a network. Each node includes an optical switch to controllably route a plurality of in-ports of the optical switch into a plurality of out-ports of the optical switch. Each point-to-point link includes a free space optical channel. A first free space optical channel couples to a first node through a receive path and through a transmit path. The receive path couples to a respective in-port of the optical switch of the first node, and the transmit path coupled to a respective out-port of the optical switch of the first node. In an alternative embodiment, a communication hub includes a plurality of neighborhood links, and a trunk coupled between the optical switch and a free space optical channel link to the network.Type: GrantFiled: June 16, 2009Date of Patent: March 25, 2014Assignee: AT&T Intellectual Property II, L.P.Inventors: David M. Britz, Jeevan Prakash Dodley, Lih-Yuan Lin, Robert R. Miller
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Publication number: 20110201527Abstract: Methods for optically trapping and manipulating micro- and nano-sized particles by using light to induce localized surface plasmon resonance on metallic surface of a substrate. The method includes the steps of contacting a substrate with a medium having particles suspended therein; focusing a beam of coherent light onto the substrate such that the beam induces surface plasmon resonance; and trapping at least one of the suspended particles using a light induced dielectrophoresis force generated by the surface plasmon resonance.Type: ApplicationFiled: April 22, 2011Publication date: August 18, 2011Applicant: WASHINGTON, UNIVERSITY OFInventors: Lih-Yuan Lin, Xiaoyu Miao, Suzie Pun
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Publication number: 20100167958Abstract: Methods for optically trapping and manipulating micro- and nano-sized particles by using light to induce localized surface plasmon resonance on metallic surface of a substrate. The method includes the steps of contacting a substrate with a medium having particles suspended therein; focusing a beam of coherent light onto the substrate such that the beam induces surface plasmon resonance; and trapping at least one of the suspended particles using a light induced dielectrophoresis force generated by the surface plasmon resonance.Type: ApplicationFiled: June 18, 2007Publication date: July 1, 2010Applicant: WASHINGTON, UNIVERSITY OFInventors: Lih-Yuan Lin, Xiaoyu Miao, Suzie Pun
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Patent number: 7565081Abstract: A communication system includes a plurality of nodes and a plurality of point-to-point links that interconnect the plurality of nodes into a network. Each node includes an optical switch to controllably route a plurality of in-ports of the optical switch into a plurality of out-ports of the optical switch. Each point-to-point link includes a free space optical channel. A first free space optical channel couples to a first node through a receive path and through a transmit path. The receive path couples to a respective in-port of the optical switch of the first node, and the transmit path coupled to a respective out-port of the optical switch of the first node. In an alternative embodiment, a communication hub includes a plurality of neighborhood links, and a trunk coupled between the optical switch and a free space optical channel link to the network.Type: GrantFiled: August 22, 2007Date of Patent: July 21, 2009Assignee: AT&T Intellectual Property II, L.P.Inventors: David M. Britz, Jeevan Prakash Dodley, Lih-Yuan Lin, Robert R. Miller
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Patent number: 7295777Abstract: A communication system includes a plurality of nodes and a plurality of point-to-point links that interconnect the plurality of nodes into a network. Each node includes an optical switch to controllably route a plurality of in-ports of the optical switch into a plurality of out-ports of the optical switch. Each point-to-point link includes a free space optical channel. A first free space optical channel couples to a first node through a receive path and through a transmit path. The receive path couples to a respective in-port of the optical switch of the first node, and the transmit path couples to a respective out-port of the optical switch of the first node. In an alternative embodiment, a communication hub includes a plurality of neighborhood links to corresponding users, an optical switch coupled to the plurality of neighborhood links, and a trunk coupled between the optical switch and a free space optical channel link to the network.Type: GrantFiled: May 30, 2006Date of Patent: November 13, 2007Assignee: AT&T Corp.Inventors: David M. Britz, Jeevan Prakash Dodley, Lih-Yuan Lin, Robert R. Miller
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Patent number: 7274877Abstract: A communication system includes a plurality of nodes and a plurality of point-to-point links that interconnect the plurality of nodes into a network. Each node includes an optical switch to controllably route a plurality of in-ports of the optical switch into a plurality of out-ports of the optical switch. Each point-to-point link includes a free space optical channel. A first free space optical channel couples to a first node through a receive path and through a transmit path. The receive path couples to a respective in-port of the optical switch of the first node, and the transmit path couples to a respective out-port of the optical switch of the first node. In an alternative embodiment, a communication hub includes a plurality of neighborhood links to corresponding users, an optical switch coupled to the plurality of neighborhood links, and a trunk coupled between the optical switch and a free space optical channel link to the network.Type: GrantFiled: August 31, 2005Date of Patent: September 25, 2007Assignee: AT&T Corp.Inventors: David M. Britz, Jeevan Prakash Dodley, Lih-Yuan Lin, Robert R. Miller
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Patent number: 7231147Abstract: An optical carrier drop/add transmission system and method for adding a signal to multiplexed input optical signals conveyed by an optical multiplex input line. The multiplexed input optical signals are demultiplexed to provide isolated input optical signals to an optical switch matrix comprising switches in an array of lines and column, the isolated input optical signals being inputted in a direction parallel to a line of switches in the optical switch matrix. The added optical signal is input in a direction parallel to a column in the optical switch matrix. An output line is selected and the switch that is on the column on which the added optical signal is inputted and on the selected output line is switched.Type: GrantFiled: July 25, 2005Date of Patent: June 12, 2007Assignee: AT&T Corp.Inventors: Evan L. Goldstein, Lih-Yuan Lin, Chuan Pu, Robert William Tkach
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Patent number: 7095957Abstract: A communication system includes a plurality of nodes and a plurality of point-to-point links that interconnect the plurality of nodes into a network. Each node includes an optical switch to controllably route a plurality of in-ports of the optical switch into a plurality of out-ports of the optical switch. Each point-to-point link includes a free space optical channel. A first free space optical channel couples to a first node through a receive path and through a transmit path. The receive path couples to a respective in-port of the optical switch of the first node, and the transmit path couples to a respective out-port of the optical switch of the first node. In an alternative embodiment, a communication hub includes a plurality of neighborhood links to corresponding users, an optical switch coupled to the plurality of neighborhood links, and a trunk coupled between the optical switch and a free space optical channel link to the network.Type: GrantFiled: September 2, 2004Date of Patent: August 22, 2006Assignee: AT&T Corp.Inventors: David M. Britz, Jeevan Prakash Dodley, Lih-Yuan Lin, Robert R. Miller
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Patent number: 7010227Abstract: A communication system includes a plurality of nodes and a plurality of point-to-point links that interconnect the plurality of nodes into a network. Each node includes an optical switch to controllably route a plurality of in-ports of the optical switch into a plurality of out-ports of the optical switch. Each point-to-point link includes a free space optical channel. A first free space optical channel couples to a first node through a receive path and through a transmit path. The receive path couples to a respective in-port of the optical switch of the first node, and the transmit path couples to a respective out-port of the optical switch of the first node. In an alternative embodiment, a communication hub includes a plurality of neighborhood links to corresponding users, an optical switch coupled to the plurality of neighborhood links, and a trunk coupled between the optical switch and a free space optical channel link to the network.Type: GrantFiled: October 23, 2003Date of Patent: March 7, 2006Assignee: AT&T Corp.Inventors: David M. Britz, Jeevan Prakash Dodley, Lih-Yuan Lin, Robert R. Miller
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Patent number: 6928244Abstract: An optical carrier drop/add transmission system and method for adding a signal to multiplexed input optical signals conveyed by an optical multiplex input line. The multiplexed input optical signals are demultiplexed to provide isolated input optical signals to an optical switch matrix comprising switches in an array of lines and columns, the isolated input optical signals being inputted in a direction parallel to a line of switches in the optical switch matrix. The added optical signal is input in a direction parallel to a column in the optical switch matrix. An output line is selected and the switch that is on the column on which the added optical signal is inputted and on the selected output line is switched.Type: GrantFiled: November 27, 2000Date of Patent: August 9, 2005Assignee: AT&T Corp.Inventors: Evan L. Goldstein, Lih-Yuan Lin, Chuan Pu, Robert William Tkach
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Patent number: 6788898Abstract: A communication system includes a plurality of nodes and a plurality of point-to-point links that interconnect the plurality of nodes into a network. Each node includes an optical switch to controllably route a plurality of in-ports of the optical switch into a plurality of out-ports of the optical switch. Each point-to-point link includes a free space optical channel. A first free space optical channel couples to a first node through a receive path and through a transmit path. The receive path couples to a respective in-port of the optical switch of the first node, and the transmit path couples to a respective out-port of the optical switch of the first node. In an alternative embodiment, a communication hub includes a plurality of neighborhood links to corresponding users, an optical switch coupled to the plurality of neighborhood links, and a trunk coupled between the optical switch and a free space optical channel link to the network.Type: GrantFiled: August 17, 2000Date of Patent: September 7, 2004Assignee: AT&T Corp.Inventors: David M. Britz, Jeevan Prakash Dodley, Lih-Yuan Lin, Robert R. Miller