Patents by Inventor Xiaofeng Han

Xiaofeng Han 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: 10581854
    Abstract: An information processing system includes an information processing apparatus, a first server, and one or more second servers configured to manage authority to use different applications.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: March 3, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventor: Xiaofeng Han
  • Patent number: 10534568
    Abstract: An image forming apparatus includes a first device having first circuitry and a printer and/or a scanner, and a second device to operate the first device, the second device including second circuitry to install, on a memory of the second device, one or more applications for executing image processing using the printer or the scanner. When determining that a current time is equal to an update time set within an update time range defined by a user, the second circuitry acquires, from a server via the first device and a network, update target application information indicating a target application among the one or more applications installed in the second device, requests, to the server via the first device, downloading of the target application, acquires the target application from the server via the first device, and installs the acquired target application in the second device.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: January 14, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Xiaofeng Han
  • Publication number: 20190391348
    Abstract: An optical transceiver package comprising a transceiver module, a digital signal processor (DSP), a substrate supporting the transceiver module and the DSP, and a barrier to mechanically protect and thermally insulate the transceiver module. The substrate comprises a material having a coefficient of thermal expansion (CTE) of 2.3-14 ppm/° C. and the barrier comprises a material having a CTE of 3.5-14 ppm/° C.
    Type: Application
    Filed: February 19, 2019
    Publication date: December 26, 2019
    Applicant: Infinera Corporation
    Inventors: John Osenbach, Jiaming Zhang, Xiaofeng Han, Timothy Butrie, Fred Kish, JR.
  • Publication number: 20190373130
    Abstract: An image forming apparatus, information processing system, and information processing method are provided. The image forming apparatus is communicably connected to a server and acquires application processing information which has been reserved in the server in advance, indicating an application from among one or more applications that are installed or not installed on the image forming apparatus and which are determined to require application processing and controls the application processing of the application indicated by the application processing information acquired from the server.
    Type: Application
    Filed: May 9, 2019
    Publication date: December 5, 2019
    Inventor: Xiaofeng Han
  • Patent number: 10476230
    Abstract: Consistent with the present disclosure, an apparatus for producing a control signal for a laser source is provided, comprising an etalon configured to receive light from the laser source and control circuitry that provides the control signal, wherein the control signal is indicative of a comparison of (a) a difference between a forward transmission signal of the etalon and a backward reflection signal of the etalon and (b) the light received by the etalon from the laser source. Alternatively, the control signal is indicative of a comparison of (a) a difference between a forward transmission signal of the etalon and a backward reflection signal of the etalon and (b) a combination of the forward transmission signal of the etalon and the backward reflection signal of the etalon.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: November 12, 2019
    Assignee: Infinera Corporation
    Inventors: Xiaofeng Han, Timothy Butrie, David Coult
  • Publication number: 20190281178
    Abstract: An information processing apparatus includes a screen information request receiver, an application identification information specifying unit, a screen information transmitter. The screen information request receiver receives, from a device, a screen information request used to request screen information for providing an application. The screen information includes at least dealer information representing a dealer that sells the device. The application identification information specifying unit specifies application identification information corresponding to the dealer information included in the screen information request based on application correspondence relation information representing a correspondence relation between the dealer information and the application identification information identifying an application available to the device.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Applicant: Ricoh Company, Ltd.
    Inventor: Xiaofeng HAN
  • Patent number: 10382640
    Abstract: An information processing apparatus includes a screen information request receiver, an application identification information specifying unit, a screen information transmitter. The screen information request receiver receives, from a device, a screen information request used to request screen information for providing an application. The screen information includes at least dealer information representing a dealer that sells the device. The application identification information specifying unit specifies application identification information corresponding to the dealer information included in the screen information request based on application correspondence relation information representing a correspondence relation between the dealer information and the application identification information identifying an application available to the device.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: August 13, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Xiaofeng Han
  • Patent number: 10348922
    Abstract: An information processing apparatus includes a screen information request receiver, an application identification information specifying unit, a screen information transmitter. The screen information request receiver receives, from a device, a screen information request used to request screen information for providing an application. The screen information includes at least dealer information representing a dealer that sells the device. The application identification information specifying unit specifies application identification information corresponding to the dealer information included in the screen information request based on application correspondence relation information representing a correspondence relation between the dealer information and the application identification information identifying an application available to the device.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: July 9, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Xiaofeng Han
  • Publication number: 20190199882
    Abstract: An electronic apparatus communicably connected to a server includes circuitry to display, on a display, an application list based on web content acquired from the server. The application list is a list of a plurality of applications available with the electronic apparatus. The plurality of applications includes at least a web application. The circuitry acquires first version information from the server. The first version information indicates a version of firmware required for the electronic apparatus to use the web application included in the application list displayed. The circuitry determines whether second version information is equal to or newer than the first version information acquired from the server. The second version information indicates a current version of firmware installed on the electronic apparatus. The circuitry updates the firmware of the electronic apparatus in response to a determination indicating that the second version information is older than the first version information.
    Type: Application
    Filed: October 8, 2018
    Publication date: June 27, 2019
    Inventor: Xiaofeng HAN
  • Publication number: 20190158183
    Abstract: A device may include a substrate. The device may include a carrier mounted to the substrate. The device may include a transmitter photonic integrated circuit (PIC) mounted on the carrier. The transmitter PIC may include a plurality of lasers that generate an optical signal when a voltage or current is applied to one of the plurality of lasers. The device may include a first microelectromechanical structure (MEMS) mounted to the substrate. The first MEMS may include a first set of lenses. The device may include a planar lightwave circuit (PLC) mounted to the substrate. The PLC may be optically coupled to the plurality of lasers by the first set of lenses of the first MEMS. The device may include a second MEMS, mounted to the substrate, that may include a second set of lenses, which may be configured to optically couple the PLC to an optical fiber.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 23, 2019
    Inventors: Timothy Butrie, Michael Reffle, Xiaofeng Han, Mehrdad Ziari, Vikrant Lal, Peter W. Evans, Fred A. Klsh, Donald J. Pavinski, Jie Tang, David Coult
  • Patent number: 10262117
    Abstract: An information processing system includes an information processing apparatus, a server, first and second obtaining units, an addition unit, and a second processing unit. The first obtaining unit obtains second information indicating first information held by the server when the information processing apparatus has not previously included the first information to perform second processing necessary for first processing. When receiving a first request for requesting to perform the first processing, the second obtaining unit obtains token information indicating the presence of the authority to use the second information. When the second obtaining unit has obtained the token information, the addition unit adds the token information to a second request for requesting to perform the second processing. Only when the token information has been added to the second request, the second processing unit performs the second processing by using the second information.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: April 16, 2019
    Assignee: RICOH COMPANY, LIMITED
    Inventor: Xiaofeng Han
  • Publication number: 20190089475
    Abstract: Consistent with the present disclosure, a photonic integrated circuit (PIC) is provided that has 2 N channels (N being an integer). The PIC is optically coupled to N optical fibers, such that each of N polarization multiplexed optical signals are transmitted over a respective one of the N optical fibers. In another example, each of the N optical fibers supply a respective one of N polarization multiplexed optical signals to the PIC for coherent detection and processing. A multiplexer and demultiplexer may be omitted from the PIC, such that the optical signals are not combined on the PIC. As a result, the transmitted and received optical signals incur less loss and amplified spontaneous emission (ASE) noise. In addition, optical taps may be more readily employed on the PIC to measure outputs of the lasers, such as widely tunable lasers (WTLs), without crossing waveguides.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Inventors: Fred A. Kish, JR., Michael Reffle, Jeffrey T. Rahn, John Osenbach, Timothy Butrie, Xiaofeng Han, Mark Missey, Mehrdad Ziari, Peter W. Evans
  • Publication number: 20190089476
    Abstract: Consistent with the present disclosure, a photonic integrated circuit (PIC) is provided that has 2 N channels (N being an integer). The PIC is optically coupled to N optical fibers, such that each of N polarization multiplexed optical signals are transmitted over a respective one of the N optical fibers. In another example, each of the N optical fibers supply a respective one of N polarization multiplexed optical signals to the PIC for coherent detection and processing. A multiplexer and demultiplexer may be omitted from the PIC, such that the optical signals are not combined on the PIC. As a result, the transmitted and received optical signals incur less loss and amplified spontaneous emission (ASE) noise. In addition, optical taps may be more readily employed on the PIC to measure outputs of the lasers, such as widely tunable lasers (WTLs), without crossing waveguides.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Inventors: Fred A. Kish, JR., Michael Reffle, Jeffrey T. Rahn, John Osenbach, Timothy Butrie, Xiaofeng Han, Mark Missey, Mehrdad Ziari, Peter w. Evans
  • Patent number: 10211925
    Abstract: A device may include a substrate. The device may include a carrier mounted to the substrate. The device may include a transmitter photonic integrated circuit (PIC) mounted on the carrier. The transmitter PIC may include a plurality of lasers that generate an optical signal when a voltage or current is applied to one of the plurality of lasers. The device may include a first microelectromechanical structure (MEMS) mounted to the substrate. The first MEMS may include a first set of lenses. The device may include a planar lightwave circuit (PLC) mounted to the substrate. The PLC may be optically coupled to the plurality of lasers by the first set of lenses of the first MEMS. The device may include a second MEMS, mounted to the substrate, that may include a second set of lenses, which may be configured to optically couple the PLC to an optical fiber.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 19, 2019
    Assignee: Infinera Corporation
    Inventors: Timothy Butrie, Michael Reffle, Xiaofeng Han, Mehrdad Ziari, Vikrant Lal, Peter W. Evans, Fred A. Kish, Jr., Donald J. Pavinski, Jie Tang, David Coult
  • Publication number: 20180341434
    Abstract: An image forming apparatus includes a first device having first circuitry and a printer and/or a scanner, and a second device to operate the first device, the second device including second circuitry to install, on a memory of the second device, one or more applications for executing image processing using the printer or the scanner. When determining that a current time is equal to an update time set within an update time range defined by a user, the second circuitry acquires, from a server via the first device and a network, update target application information indicating a target application among the one or more applications installed in the second device. requests, to the server via the first device, downloading of the target application, acquires the target application from the server via the first device, and installs the acquired target application in the second device.
    Type: Application
    Filed: May 23, 2018
    Publication date: November 29, 2018
    Inventor: Xiaofeng Han
  • Publication number: 20180302525
    Abstract: An information processing apparatus includes a screen information request receiver, an application identification information specifying unit, a screen information transmitter. The screen information request receiver receives, from a device, a screen information request used to request screen information for providing an application. The screen information includes at least dealer information representing a dealer that sells the device. The application identification information specifying unit specifies application identification information corresponding to the dealer information included in the screen information request based on application correspondence relation information representing a correspondence relation between the dealer information and the application identification information identifying an application available to the device.
    Type: Application
    Filed: June 19, 2018
    Publication date: October 18, 2018
    Applicant: Ricoh Company, Ltd.
    Inventor: Xiaofeng HAN
  • Patent number: 10033898
    Abstract: An information processing apparatus includes a screen information request receiver, an application identification information specifying unit, a screen information transmitter. The screen information request receiver receives, from a device, a screen information request used to request screen information for providing an application. The screen information includes at least dealer information representing a dealer that sells the device. The application identification information specifying unit specifies application identification information corresponding to the dealer information included in the screen information request based on application correspondence relation information representing a correspondence relation between the dealer information and the application identification information identifying an application available to the device.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 24, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Xiaofeng Han
  • Patent number: 9996763
    Abstract: A computer-implemented method executes instructions for receiving or retrieving image files. A first image file corresponds to both a scaling article image having one or more known dimension(s) and to a target article image submitted by a consumer or a vendor. Contours are determined for each article image to obtain one or more pixel dimension(s) for each article image. The pixel dimension(s) for the scaling article image are related to its known dimension(s) to obtain scaled pixel dimensions for the target article image. A consumer profile is generated which includes at least one of a set of curves that represent the determined contours and a set of control points, measure lines and control lines to represent the measurement of the reference article. Access to the profile facilitates creation of new articles for the consumer and/or assessment of how an article having a similarly derived profile will fit.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: June 12, 2018
    Inventor: Xiaofeng Han
  • Publication number: 20180138981
    Abstract: A device may include a substrate. The device may include a carrier mounted to the substrate. The device may include a transmitter photonic integrated circuit (PIC) mounted on the carrier. The transmitter PIC may include a plurality of lasers that generate an optical signal when a voltage or current is applied to one of the plurality of lasers. The device may include a first microelectromechanical structure (MEMS) mounted to the substrate. The first MEMS may include a first set of lenses. The device may include a planar lightwave circuit (PLC) mounted to the substrate. The PLC may be optically coupled to the plurality of lasers by the first set of lenses of the first MEMS. The device may include a second MEMS, mounted to the substrate, that may include a second set of lenses, which may be configured to optically couple the PLC to an optical fiber.
    Type: Application
    Filed: December 20, 2017
    Publication date: May 17, 2018
    Inventors: Timothy Butrie, Michael Reffle, Xiaofeng Han, Mehrdad Ziari, Vikrant Lal, Peter W. Evans, Fred A. Kish, Donald J. Pavinski, Jie Tang, David Coult
  • Patent number: 9876575
    Abstract: A device may include a substrate. The device may include a carrier mounted to the substrate. The device may include a transmitter photonic integrated circuit (PIC) mounted on the carrier. The transmitter PIC may include a plurality of lasers that generate an optical signal when a voltage or current is applied to one of the plurality of lasers. The device may include a first microelectromechanical structure (MEMS) mounted to the substrate. The first MEMS may include a first set of lenses. The device may include a planar lightwave circuit (PLC) mounted to the substrate. The PLC may be optically coupled to the plurality of lasers by the first set of lenses of the first MEMS. The device may include a second MEMS, mounted to the substrate, that may include a second set of lenses, which may be configured to optically couple the PLC to an optical fiber.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: January 23, 2018
    Assignee: Infinera Corporation
    Inventors: Timothy Butrie, Michael Reffle, Xiaofeng Han, Mehrdad Ziari, Vikrant Lal, Peter W. Evans, Fred A. Kish, Jr., Donald J. Pavinski, Jie Tang, David Coult