Patents by Inventor Duixian Liu
Duixian Liu 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).
-
Publication number: 20230293013Abstract: A system for interfacing an in-body medical device with an external network includes a subdermal wideband on-body network (WON) hub, which in turn includes a hub rechargeable battery, a hub processor coupled to the hub rechargeable battery, a device interface configured to communicate with the in-body medical device, and coupled to the hub processor, and a hub-satellite near field communications wireless interface coupled to the hub processor. The system also includes a wearable WON server that in turn includes a server processor, a server-satellite interface coupled to the server processor, and an external network interface coupled to the server processor.Type: ApplicationFiled: May 30, 2023Publication date: September 21, 2023Inventors: Bo Wen, Bing Dang, Jeffrey L. Rogers, Duixian Liu
-
Patent number: 11710902Abstract: A package structure is provided that includes a planar core structure comprising a first side and a second side opposite the first side. The package structure also includes an antenna structure disposed on the first side of the planar core structure. The antenna structure comprises a plurality of first laminated layers, each first laminated layer comprising a first patterned conductive layer formed on a first insulating layer, an antenna formed on one or more first patterned conductive layers of the first laminated layers, the antenna including at least one L-shaped structure. The package structure also includes an interface structure disposed on the second side of the planar core structure, and an antenna feed line structure formed in, and routed through, the interface structure and the planar core structure, wherein the antenna feed line structure is not connected to the planar antenna.Type: GrantFiled: February 9, 2021Date of Patent: July 25, 2023Assignee: International Business Machines CorporationInventor: Duixian Liu
-
Patent number: 11696683Abstract: A system for interfacing an in-body medical device with an external network includes a subdermal wideband on-body network (WON) hub, which in turn includes a hub rechargeable battery, a hub processor coupled to the hub rechargeable battery, a device interface configured to communicate with the in-body medical device, and coupled to the hub processor, and a hub-satellite near field communications wireless interface coupled to the hub processor. The system also includes a wearable WON server that in turn includes a server processor, a server-satellite interface coupled to the server processor, and an external network interface coupled to the server processor.Type: GrantFiled: February 10, 2021Date of Patent: July 11, 2023Assignee: International Business Machines CorporationInventors: Bo Wen, Bing Dang, Jeffrey L. Rogers, Duixian Liu
-
Patent number: 11658390Abstract: Antenna package structures are provided to implement wireless communications packages. For example, an antenna package includes multilayer package substrate, a planar antenna array, antenna feed lines, and resistive transmission lines. The planar antenna array includes an array of active antenna elements and dummy antenna elements surrounding the array of active antenna elements. Each active antenna element is coupled to a corresponding one of the antenna feed lines, and each dummy antenna element is coupled to a corresponding one of the resistive transmission lines. Each resistive transmission line extends through the multilayer package substrate and is terminated in a same metallization layer of the multilayer package substrate.Type: GrantFiled: January 23, 2020Date of Patent: May 23, 2023Assignees: International Business Machines Corporation, Ericsson ABInventors: Christian W. Baks, Daniel J. Friedman, Xiaoxiong Gu, Duixian Liu, Alberto Valdes Garcia, Joakim Hallin, Ola Ragnar Tageman
-
Publication number: 20220255230Abstract: A package structure is provided that includes a planar core structure comprising a first side and a second side opposite the first side. The package structure also includes an antenna structure disposed on the first side of the planar core structure. The antenna structure comprises a plurality of first laminated layers, each first laminated layer comprising a first patterned conductive layer formed on a first insulating layer, an antenna formed on one or more first patterned conductive layers of the first laminated layers, the antenna including at least one L-shaped structure. The package structure also includes an interface structure disposed on the second side of the planar core structure, and an antenna feed line structure formed in, and routed through, the interface structure and the planar core structure, wherein the antenna feed line structure is not connected to the planar antenna.Type: ApplicationFiled: February 9, 2021Publication date: August 11, 2022Inventor: Duixian Liu
-
Publication number: 20220248958Abstract: A system for interfacing an in-body medical device with an external network includes a subdermal wideband on-body network (WON) hub, which in turn includes a hub rechargeable battery, a hub processor coupled to the hub rechargeable battery, a device interface configured to communicate with the in-body medical device, and coupled to the hub processor, and a hub-satellite near field communications wireless interface coupled to the hub processor. The system also includes a wearable WON server that in turn includes a server processor, a server-satellite interface coupled to the server processor, and an external network interface coupled to the server processor.Type: ApplicationFiled: February 10, 2021Publication date: August 11, 2022Inventors: Bo Wen, Bing Dang, Jeffrey L. Rogers, Duixian Liu
-
Patent number: 11238327Abstract: A radio frequency identification (RFID) system. An RFID tag may include multiple antennas connected with associated circuitry. An RFID tag's multiple antennas and associated circuitry are connected in parallel, and output power of the multiple associated circuitry can be combined. Each of the multiple antennas can be tuned for a different operating property or region. An RFID reader can include multiple antennas connected with associated circuitry. RFID reader's multiple antenna interfaces connect with a baseband processor, which can integrate resources of the reader's multiple antennas and associated circuitry. RFID tag and/or reader can be configured to support wireless channel diversity in enhancing at least one of power delivery and communication link budget.Type: GrantFiled: December 28, 2020Date of Patent: February 1, 2022Assignee: International Business Machines CorporationInventors: Arun Paidimarri, Bodhisatwa Sadhu, Duixian Liu, Alberto Valdes Garcia
-
Patent number: 11228111Abstract: An antenna that can be embedded in a computer system or device is described. In an example, the antenna includes a feed operable to transmit and receive power. The antenna includes a first arm being extended from the feed towards a first direction to form a first partial loop. The antenna further includes a second arm being extended from the feed towards a second direction to form a second partial loop. The second direction is different from the first direction.Type: GrantFiled: April 11, 2019Date of Patent: January 18, 2022Assignee: International Business Machines CorporationInventors: Duixian Liu, Arun Paidimarri, Bodhisatwa Sadhu, Alberto Valdes Garcia
-
Patent number: 11189905Abstract: An apparatus includes an antenna array package cover comprising a radiating surface, a mating surface disposed opposite the radiating surface, and an array of antenna array sub-patterns wherein each antenna array sub-pattern comprises at least one antenna element. The antenna array package also includes an array of sub-pattern interface packages mated to the mating surface of the antenna array package cover. Each sub-pattern interface package of the array of sub-pattern interface packages comprises a package carrier, a sub-pattern integrated circuit electrically and mechanically coupled to the package carrier, and a set of interface lines corresponding to the antenna elements of the antenna array sub-pattern that corresponds to the sub-pattern interface package. Methods for mounting the above apparatus into a host circuit are also disclosed herein.Type: GrantFiled: April 13, 2018Date of Patent: November 30, 2021Assignee: International Business Machines CorporationInventors: Xiaoxiong Gu, Duixian Liu, Christian W. Baks, Alberto Valdes Garcia
-
Patent number: 11177843Abstract: A device includes a transmitter. A main antenna is coupled to the transmitter. A matching network coupled to the transmitter and configured to match an impedance of the main antenna, wherein one or more components of the matching network provide a desired radiation.Type: GrantFiled: March 23, 2019Date of Patent: November 16, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bodhisatwa Sadhu, Duixian Liu, Arun Paidimarri
-
Publication number: 20210150299Abstract: A radio frequency identification (RFID) system. An RFID tag may include multiple antennas connected with associated circuitry. An RFID tag's multiple antennas and associated circuitry are connected in parallel, and output power of the multiple associated circuitry can be combined. Each of the multiple antennas can be tuned for a different operating property or region. An RFID reader can include multiple antennas connected with associated circuitry. RFID reader's multiple antenna interfaces connect with a baseband processor, which can integrate resources of the reader's multiple antennas and associated circuitry. RFID tag and/or reader can be configured to support wireless channel diversity in enhancing at least one of power delivery and communication link budget.Type: ApplicationFiled: December 28, 2020Publication date: May 20, 2021Inventors: Arun Paidimarri, Bodhisatwa Sadhu, Duixian Liu, Alberto Valdes Garcia
-
Patent number: 10965166Abstract: A radio frequency identification (RFID) system may include a plurality of RFID readers and RFID tags. A RFID reader may include an antenna configured to operate at a first frequency and transmit a first beam of a first beam width to the plurality of RFID tags. The RFID antenna may further include an antenna array including a plurality of antennas configured to operate at a second frequency. The antenna array may be configured to transmit a second beam of a second beam width to the plurality of RFID tags. The RFID reader may receive backscatter signals and tag data from the plurality of RFID tags. The RFID reader may locate the plurality of RFID tags based on the backscatter signals and a direction of the second beam. The RFID reader may generate a 3D map of the tag data based on the locations of the plurality of RFID tags.Type: GrantFiled: February 15, 2019Date of Patent: March 30, 2021Assignee: International Business Machines CorporatonInventors: Arun Paidimarri, Bodhisatwa Sadhu, Duixian Liu, Alberto Valdes Garcia
-
Patent number: 10949730Abstract: A radio frequency identification (RFID) system. An RFID tag may include multiple antennas connected with associated circuitry. An RFID tag's multiple antennas and associated circuitry are connected in parallel, and output power of the multiple associated circuitry can be combined. Each of the multiple antennas can be tuned for a different operating property or region. An RFID reader can include multiple antennas connected with associated circuitry. RFID reader's multiple antenna interfaces connect with a baseband processor, which can integrate resources of the reader's multiple antennas and associated circuitry. RFID tag and/or reader can be configured to support wireless channel diversity in enhancing at least one of power delivery and communication link budget.Type: GrantFiled: February 15, 2019Date of Patent: March 16, 2021Assignee: International Business Machines CorporationInventors: Arun Paidimarri, Bodhisatwa Sadhu, Duixian Liu, Alberto Valdes Garcia
-
Patent number: 10892643Abstract: Systems, devices, and techniques facilitating wirelessly charging and/or communicating with one or more electronic devices (e.g., electronic wearable devices) are provided. A device can comprise a memory and a storage component that can be operatively coupled to the memory. The storage component can comprise one or more recesses that can receive a second device that can be charged by the storage component. The storage component can comprise a charging circuit and an inductive circuit that can be coupled to the charging circuit. The storage component can harvest energy from one or more energy sources to charge the charging circuit. Based on the energy harvested, the inductive circuit can inductively couple to the second device having a second inductive circuit and positioned in at least one of the recesses and the inductive circuit can charge a power source of the second device.Type: GrantFiled: March 14, 2018Date of Patent: January 12, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, John Knickerbocker
-
Patent number: 10826194Abstract: Techniques regarding a scalable phased array are provided. For example, various embodiments described herein can comprise a plurality of integrated circuits having respective flip chip pads, and an antenna-in-package substrate having a ball grid array terminal and a plurality of transmission lines. The plurality of transmission lines can be embedded within the antenna-in-package substrate and can operatively couple the respective flip chip pads to the ball grid array terminal. In one or more embodiments, a die can comprise the plurality of integrated circuits. Further, in one or more embodiments a combiner can also be embedded in the antenna-in-package substrate. The combiner can join the plurality of transmission lines.Type: GrantFiled: February 21, 2018Date of Patent: November 3, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xiaoxiong Gu, Wooram Lee, Duixian Liu, Christian Wilhelmus Baks, Alberto Valdes-Garcia
-
Publication number: 20200328522Abstract: An antenna that can be embedded in a computer system or device is described. In an example, the antenna includes a feed operable to transmit and receive power. The antenna includes a first arm being extended from the feed towards a first direction to form a first partial loop. The antenna further includes a second arm being extended from the feed towards a second direction to form a second partial loop. The second direction is different from the first direction.Type: ApplicationFiled: April 11, 2019Publication date: October 15, 2020Inventors: Duixian Liu, Arun Paidimarri, Bodhisatwa Sadhu, Alberto Valdes Garcia
-
Publication number: 20200304157Abstract: A device includes a transmitter. A main antenna is coupled to the transmitter. A matching network coupled to the transmitter and configured to match an impedance of the main antenna, wherein one or more components of the matching network provide a desired radiation.Type: ApplicationFiled: March 23, 2019Publication date: September 24, 2020Inventors: Bodhisatwa Sadhu, Duixian Liu, Arun Paidimarri
-
Patent number: 10784563Abstract: Techniques regarding a scalable phased array are provided. For example, various embodiments described herein can comprise a plurality of integrated circuits having respective flip chip pads, and an antenna-in-package substrate having a ball grid array terminal and a plurality of transmission lines. The plurality of transmission lines can be embedded within the antenna-in-package substrate and can operatively couple the respective flip chip pads to the ball grid array terminal. In one or more embodiments, a die can comprise the plurality of integrated circuits. Further, in one or more embodiments a combiner can also be embedded in the antenna-in-package substrate. The combiner can join the plurality of transmission lines.Type: GrantFiled: February 21, 2018Date of Patent: September 22, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xiaoxiong Gu, Wooram Lee, Duixian Liu, Christian Wilhelmus Baks, Alberto Valdes-Garcia
-
Publication number: 20200266669Abstract: A radio frequency identification (RFID) system may include a plurality of RFID readers and RFID tags. A RFID reader may include an antenna configured to operate at a first frequency and transmit a first beam of a first beam width to the plurality of RFID tags. The RFID antenna may further include an antenna array including a plurality of antennas configured to operate at a second frequency. The antenna array may be configured to transmit a second beam of a second beam width to the plurality of RFID tags. The RFID reader may receive backscatter signals and tag data from the plurality of RFID tags. The RFID reader may locate the plurality of RFID tags based on the backscatter signals and a direction of the second beam. The RFID reader may generate a 3D map of the tag data based on the locations of the plurality of RFID tags.Type: ApplicationFiled: February 15, 2019Publication date: August 20, 2020Inventors: Arun Paidimarri, Bodhisatwa Sadhu, Duixian Liu, Alberto Valdes Garcia
-
Publication number: 20200265285Abstract: A radio frequency identification (RFID) system. An RFID tag may include multiple antennas connected with associated circuitry. An RFID tag's multiple antennas and associated circuitry are connected in parallel, and output power of the multiple associated circuitry can be combined. Each of the multiple antennas can be tuned for a different operating property or region. An RFID reader can include multiple antennas connected with associated circuitry. RFID reader's multiple antenna interfaces connect with a baseband processor, which can integrate resources of the reader's multiple antennas and associated circuitry. RFID tag and/or reader can be configured to support wireless channel diversity in enhancing at least one of power delivery and communication link budget.Type: ApplicationFiled: February 15, 2019Publication date: August 20, 2020Inventors: Arun Paidimarri, Bodhisatwa Sadhu, Duixian Liu, Alberto Valdes Garcia