Patents by Inventor Xuan Zheng
Xuan Zheng 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: 20200048557Abstract: A straight fin for a device for recovering the waste heat of raw coke oven gas in the ascension pipe of the coke oven includes the straight fin body and a group of V-shaped notches disposed on the straight fin body. The depth h of the V-shaped notches is less than the width H of the straight fin body. The distances between the adjacent V-shaped notches increase from bottom to top in the longitudinal direction of the straight fin body. The present invention further provides a heat recovering device and a power generation device both including the straight fins. Moreover, the width, the angle, and the distances in the longitudinal direction of the V-shaped notches at the top of the straight fin are determined according to the temperature field distribution during use of the device.Type: ApplicationFiled: September 19, 2017Publication date: February 13, 2020Applicant: NANJING HUADIAN ENERGY-SAVING & ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTDInventors: Xiaoping LIU, Jianning LU, Juxiang LI, Renhe DONG, Guilan YANG, Xuan ZHENG
-
Patent number: 10339146Abstract: Provided is a display device for providing a media resource. The display device includes a communicator and a controller. The communicator collects background media resource database (DB) information. The controller extracts text information from each of media resources included in a background media resource DB, acquires one or more feature words based on the extracted text information, generates a feature word weight matrix of the background media resource DB which includes a respective weight of each acquired feature word, calculates a clustering similarity between each media resource included in the background media resource DB and a current media resource, which is being watched by a user, by using the feature word weight matrix, and provides a media resource recommendation list which includes one or more media resources based on the clustering similarity.Type: GrantFiled: November 25, 2015Date of Patent: July 2, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Xuan Zheng, Jie Chen, Bing Ji
-
Publication number: 20190166534Abstract: A method includes receiving a carrier switching model, determining that user equipment (UE) is transitioning between carrier cells based on at least one connection performance metric of the UE, and obtaining a current UE location and any available carrier networks of carriers relative to the current UE location. The method also includes determining a carrier switch score for each available carrier network using the carrier switching model and determining to switch carrier networks based on the carrier switch score of a currently-connected available carrier network relative to the carrier switch score of another available carrier network. Each carrier switch score is based on at least one of a predicted signal strength or a predicted radio access technology over a threshold period of time for the respective available carrier network. The method also includes causing the UE to switch connection to the other available carrier network.Type: ApplicationFiled: November 30, 2017Publication date: May 30, 2019Applicant: Google LLCInventors: Brian Williammee, Myra Nam, Xuan Zheng, Weihua Tan, Jean Choi
-
Publication number: 20180332222Abstract: A method for obtaining a binocular panoramic image is performed at an electronic apparatus. The method includes: obtaining first and second panoramic images acquired by two panoramic cameras; obtaining at least one group of a first pixel located in the first panoramic image and a second pixel located in the second panoramic image; calculating a distance between the first pixel and the second pixel in each group, and obtaining depth information corresponding to the two panoramic image according to the distance between the first pixel and the second pixel; obtaining a second monocular panoramic image through mapping by using one of the two panoramic images as a first monocular panoramic image, in combination with the corresponding depth information and a preset pupil distance between a first eye and a second eye; and displaying the first monocular panoramic image and the second monocular panoramic image in corresponding display regions.Type: ApplicationFiled: July 20, 2018Publication date: November 15, 2018Inventors: Li YAO, Juhong Wang, Tingting Huang, Xuan Zheng
-
Patent number: 9818447Abstract: A method comprises writing a waveform on a magnetic recording medium using a heat-assisted magnetic recording apparatus which includes a laser. The method also comprises reading back the waveform from the medium, and detecting one or more transition shifts in the readback waveform indicative of a mode hop of the laser. The method further comprises measuring a metric of the one or more transition shifts.Type: GrantFiled: March 21, 2017Date of Patent: November 14, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Xuan Zheng, Walter R. Eppler, Julius K. Hohlfeld, Heidi M. Olson
-
Patent number: 9620163Abstract: A method comprises writing a waveform on a magnetic recording medium using a heat-assisted magnetic recording apparatus which includes a laser. The method also comprises reading back the waveform from the medium, and detecting one or more transition shifts in the readback waveform indicative of a mode hop of the laser. The method further comprises measuring a metric of the one or more transition shifts.Type: GrantFiled: May 16, 2016Date of Patent: April 11, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Xuan Zheng, Walter R. Eppler, Julius K. Hohlfeld, Heidi M. Olson
-
Patent number: 9607659Abstract: A data storage system includes a recording head and a compensating resistor. The recording head has a heating element. The compensating resistor is in electrical series with the heating element and is external to the recording head. A method includes applying an alternating current at a first angular frequency to a recording head. A voltage drop across the recording head heating element is measured. A component of the voltage drop is extracted. The component has a frequency that is three times the frequency of the first angular frequency.Type: GrantFiled: September 3, 2013Date of Patent: March 28, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Xuan Zheng, Timothy William Stoebe
-
Patent number: 9390741Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.Type: GrantFiled: May 22, 2015Date of Patent: July 12, 2016Assignee: SAEGATE TECHNOLOGY LLCInventors: Michael Thomas Johnson, Dongming Liu, Huazhou Lou, Declan Macken, Timothy William Stoebe, James Gary Wessel, Xuan Zheng
-
Publication number: 20160147768Abstract: Provided is a display device for providing a media resource. The display device includes a communicator and a controller. The communicator collects background media resource database (DB) information. The controller extracts text information from each of media resources included in a background media resource DB, acquires one or more feature words based on the extracted text information, generates a feature word weight matrix of the background media resource DB which includes a respective weight of each acquired feature word, calculates a clustering similarity between each media resource included in the background media resource DB and a current media resource, which is being watched by a user, by using the feature word weight matrix, and provides a media resource recommendation list which includes one or more media resources based on the clustering similarity.Type: ApplicationFiled: November 25, 2015Publication date: May 26, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Xuan ZHENG, Jie CHEN, Bing JI
-
Publication number: 20150255102Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.Type: ApplicationFiled: May 22, 2015Publication date: September 10, 2015Inventors: Michael Thomas Johnson, Dongming Liu, Huazhou Lou, Declan Macken, Timothy William Stoebe, James Gary Wessel, Xuan Zheng
-
Patent number: 9082440Abstract: A bias signal is applied to a resistive thermal sensor located proximate a magnetic media reading surface of a magnetic sensor. The bias signal is modulated between first and second bias levels. First and second resistances of the resistive thermal sensor corresponding to the first and second bias levels are measured. Based a difference between the first and second resistances caused by in increase in thermal conductivity between the magnetic sensor and a medium as the magnetic head gets closer to the medium, at least one of a spacing and a contact between the magnetic sensor and the medium are determined.Type: GrantFiled: July 23, 2012Date of Patent: July 14, 2015Assignee: SEAGATE TECHNOLOGY LLCInventors: Michael Thomas Johnson, Manuel Charles Anaya Dufresne, Xuan Zheng, Dongming Liu
-
Patent number: 9042050Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.Type: GrantFiled: August 12, 2014Date of Patent: May 26, 2015Assignee: SEAGATE TECHNOLOGY LLCInventors: Michael Thomas Johnson, Dongming Liu, Huazhou Lou, Declan Macken, Timothy William Stoebe, James Gary Wessel, Xuan Zheng
-
Patent number: 9036290Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.Type: GrantFiled: August 12, 2014Date of Patent: May 19, 2015Assignee: SEAGATE TECHNOLOGY LLCInventors: Michael Thomas Johnson, Dongming Liu, Huazhou Lou, Declan Macken, Timothy William Stoebe, James Gary Wessel, Xuan Zheng
-
Patent number: 8937853Abstract: Changes in the thermal boundary condition near a close point of an ABS to a media indicate proximity of the ABS with the media. Before contact, heat conduction from the ABS is primarily through convective and/or ballistic heat transfer to air between the ABS and the media. After contact, heat flux primarily flows from the ABS to the media through solid-solid conductive contact. Further, a light source within a HAMR transducer head may create additional thermal variations within the transducer head. These thermal variations create temperature variations within the transducer head. Two resistance temperature sensors on the transducer head at varying distances from the close point and/or light source measure these temperature variations. A temperature difference between the two resistance temperature sensors indicates proximity of the close point to the media and/or light output.Type: GrantFiled: July 23, 2014Date of Patent: January 20, 2015Assignee: Seagate Technology LLCInventors: Xuan Zheng, Timothy William Stoebe, Jorge Hanchi, Kaizhong Gao
-
Publication number: 20140355150Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.Type: ApplicationFiled: August 12, 2014Publication date: December 4, 2014Inventors: Michael Thomas Johnson, Dongming Liu, Huazhou Lou, Declan Macken, Timothy William Stoebe, James Gary Wessel, Xuan Zheng
-
Publication number: 20140347760Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.Type: ApplicationFiled: August 12, 2014Publication date: November 27, 2014Inventors: Michael Thomas Johnson, Dongming Liu, Huazhou Lou, Declan Macken, Timothy William Stoebe, James Gary Wessel, Xuan Zheng
-
Publication number: 20140334275Abstract: Changes in the thermal boundary condition near a close point of an ABS to a media indicate proximity of the ABS with the media. Before contact, heat conduction from the ABS is primarily through convective and/or ballistic heat transfer to air between the ABS and the media. After contact, heat flux primarily flows from the ABS to the media through solid-solid conductive contact. Further, a light source within a HAMR transducer head may create additional thermal variations within the transducer head. These thermal variations create temperature variations within the transducer head. Two resistance temperature sensors on the transducer head at varying distances from the close point and/or light source measure these temperature variations. A temperature difference between the two resistance temperature sensors indicates proximity of the close point to the media and/or light output.Type: ApplicationFiled: July 23, 2014Publication date: November 13, 2014Inventors: Xuan Zheng, Timothy William Stoebe, Jorge Hanchi, Kaizhong Gao
-
Patent number: 8869590Abstract: A flexible member is coupled between an actuator arm and a slider. The flexible member facilitates relative motion in a tangential direction of a rotating medium. The relative motion is detected via a displacement sensor, and a friction between the slider and the rotating medium is determined based on the sensed relative motion.Type: GrantFiled: November 13, 2012Date of Patent: October 28, 2014Assignee: Seagate Technology LLCInventors: Huiwen Liu, David Wobbe, Xuan Zheng, Timothy William Stoebe
-
Patent number: 8810952Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.Type: GrantFiled: November 17, 2011Date of Patent: August 19, 2014Assignee: Seagate Technology LLCInventors: Michael T. Johnson, Dongming Liu, Huazhou Lou, Declan Macken, Timothy W. Stoebe, James G. Wessel, Xuan Zheng
-
Patent number: 8792311Abstract: Changes in the thermal boundary condition near a close point of an ABS to a media indicate proximity of the ABS with the media. Before contact, heat conduction from the ABS is primarily through convective and/or ballistic heat transfer to air between the ABS and the media. After contact, heat flux primarily flows from the ABS to the media through solid-solid conductive contact. Further, a light source within a HAMR transducer head may create additional thermal variations within the transducer head. These thermal variations create temperature variations within the transducer head. Two resistance temperature sensors on the transducer head at varying distances from the close point and/or light source measure these temperature variations. A temperature difference between the two resistance temperature sensors indicates proximity of the close point to the media and/or light output.Type: GrantFiled: February 8, 2011Date of Patent: July 29, 2014Assignee: Seagate Technology LLCInventors: Xuan Zheng, Timothy William Stoebe, Jorge Hanchi, Kaizhong Gao