Patents by Inventor Wei-Ming Lan

Wei-Ming Lan 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: 20190098681
    Abstract: A mobile communications device is configured to implement dual connectivity, using both a Long-Term Evolution (LTE) radio and a 5th-Generation (5G) radio, for communicating with respective base stations of a cellular network. A primary transmission uplink is established in a first radio frequency band using the LTE radio. The device may then receive a request to establish a secondary transmission uplink in a second frequency band. Upon receiving the request, the device determines whether it can support concurrent use of the primary and secondary frequency bands while maintaining adequate receiver sensitivity. If the device cannot support such concurrent use, the device refuses the request. In addition, the device provides data indicating the degree by which certain performance parameters would be out-of-tolerance if the secondary connection were to be established.
    Type: Application
    Filed: January 11, 2018
    Publication date: March 28, 2019
    Inventors: Ming Shan Kwok, John Humbert, Wei-Ming Lan, Scott Francis Migaldi, Neng-Tsann Ueng
  • Publication number: 20190090297
    Abstract: A radio frequency front end (RFFE) is configured to support dual connectivity communications, in which two different radio access technologies such as LTE and NR are used simultaneously for uplink communications from a wireless communications device to a base station. The RFFE has two channels and two respectively associated antennas. The first channel transmits an NR signal from the first antenna. The second channel transmits an LTE signal from the second antenna. For reception, the first channel produces a main NR receive signal and LTE diversity signal. The second channel produces a main LTE receive signal and an NR diversity signal.
    Type: Application
    Filed: February 21, 2018
    Publication date: March 21, 2019
    Inventors: Wei-Ming Lan, Ming Shan Kwok
  • Patent number: 9392179
    Abstract: An electronic device includes a magnifying element. The magnifying element includes a camera module and a lens module. The camera module includes an image sensor and a lens related to the image sensor. The lens module is mounted on the lens and used as back projection to ensure that the light exit aperture of the lens module is opposite to the entrance aperture of the camera module. The power of magnification of the electronic device with a magnifying element is determined by the design features of the lens module.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: July 12, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Wei-Ming Lan, Tsung-Heng Chang
  • Publication number: 20160037078
    Abstract: An electronic device includes a magnifying element. The magnifying element includes a camera module and a lens module. The camera module includes an image sensor and a lens related to the image sensor. The lens module is mounted on the lens and used as back projection to ensure that the light exit aperture of the lens module is opposite to the entrance aperture of the camera module. The power of magnification of the electronic device with a magnifying element is determined by the design features of the lens module.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 4, 2016
    Inventors: WEI-MING LAN, TSUNG-HENG CHANG
  • Patent number: 8891442
    Abstract: A system, computer-readable medium, and method of operating a dual-mode WiMAX and CDMA communications device capable of operating in a CDMA mode or a WiMAX mode includes receiving a first base station (BS) location message from the BS and storing the received location as a current BS location. The BS location is compared to stored region coordinates for the different regions, and the comparison is used to determine a particular region in which the dual-mode device is currently located. Analysis determines whether a WiMAX market is located within the particular region. If no WiMAX markets are located, the dual-mode device is operated in the CDMA mode. If one or more WiMAX markets are located within the particular region, a determination is made as to whether the BS location is within a WiMAX market and, if so, the dual-mode device is placed in a WiMAX mode of operation. Battery power is conserved by avoiding WiMAX transmission when WiMAX service is not available at the current BS location.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: November 18, 2014
    Assignee: Clearwire IP Holdings LLC
    Inventor: Wei-Ming Lan
  • Patent number: 8621513
    Abstract: Systems, methods and media are provided for presenting a group of available broadcast channels utilizing a wireless network upon initiation of a channel-viewing graphical user interface (GUI). The group comprises channels that can be broadcast most efficiently to the mobile device. After initiating the channel-viewing GUI on the mobile device, requests are communicated to elements on the network to retrieve lists of currently broadcast channels in the area and currently viewed channels throughout the wireless network. A list also is retrieved of recently viewed channels on the mobile device. At least a portion of each list is then presented on the channel-viewing GUI. The lists can be sent by a first video media proxy (VMP) server and a broadcast management server (BMS).
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: December 31, 2013
    Assignee: Clearwire IP Holdings LLC
    Inventors: Yaojun Sun, Jing Gu, Lyle Bertz, Wei-Ming Lan
  • Patent number: 8478263
    Abstract: A performance indicator for uplink traffic is measured a plurality of times under a plurality of conditions to generate a set of uplink performance indicators. The performance indicator for downlink traffic is measured a plurality of times under the plurality of conditions to generate a set of downlink performance indicators. The performance indicator for bidirectional traffic is measured a plurality of times under the plurality of conditions to generate a set of bidirectional performance indicators. The plurality of conditions comprise: a set of center frequency parameters; a set of attenuation factor parameters for each one of the set of center frequency parameters; a set of channel model parameters for each one of the combinations of attenuation factor parameters and center frequency parameters; and, a set of modulation coding scheme parameters for each one of the combinations of channel model parameters, attenuation factor parameters, and center frequency parameters.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: July 2, 2013
    Assignee: Clearwire IP Holdings LLC
    Inventors: Wei-Ming Lan, Abhinay Sinai Talaulicar
  • Patent number: 8370872
    Abstract: Systems, methods and media are provided for presenting a group of available broadcast channels utilizing a wireless network upon initiation of a channel-viewing graphical user interface (GUI). The group comprises channels that can be broadcast most efficiently to the mobile device. After initiating the channel-viewing GUI on the mobile device, requests are communicated to elements on the network to retrieve lists of currently broadcast channels in the area and currently viewed channels throughout the wireless network. A list also is retrieved of recently viewed channels on the mobile device. At least a portion of each list is then presented on the channel-viewing GUI. The lists can be sent by a first video media proxy (VMP) server and a broadcast management server (BMS).
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: February 5, 2013
    Assignee: Clearwire IP Holdings LLC
    Inventors: Yaojun Sun, Jing Gu, Lyle Bertz, Wei-Ming Lan
  • Patent number: 8290519
    Abstract: Methods and systems are described for providing a presence service that is useful for mobile telecommunications devices. A plurality of outgoing presence updates are sent to a presence client. The system monitors the level of network traffic and determines whether the client is in a region of high network load, and if so, the system throttles the outgoing presence updates during the condition of high network load. The level of throttling may depend at least in part on the amount of time that has elapsed since the presence client began a presence session, and/or the amount of time that has elapsed since an incoming presence update was received from the presence client. In determining the latter amount of elapsed time, the system may consider only the amount of time elapsed since an incoming non-automatic presence update was received from the presence client.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 16, 2012
    Assignee: Spring Spectrum L.P.
    Inventors: Yaojun Sun, Jing Qu, Joseph Schaedler, Wei-Ming Lan, Douglas R. Green
  • Publication number: 20120071178
    Abstract: Methods and systems are described for providing a presence service that is useful for mobile telecommunications devices. A plurality of outgoing presence updates are sent to a presence client. The system monitors the level of network traffic and determines whether the client is in a region of high network load, and if so, the system throttles the outgoing presence updates during the condition of high network load. The level of throttling may depend at least in part on the amount of time that has elapsed since the presence client began a presence session, and/or the amount of time that has elapsed since an incoming presence update was received from the presence client. In determining the latter amount of elapsed time, the system may consider only the amount of time elapsed since an incoming non-automatic presence update was received from the presence client.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 22, 2012
    Applicant: SPRINT SPECTRUM L.P.
    Inventors: Yaojun Sun, Jing Qu, Joseph Schaedler, Wei-Ming Lan, Douglas R. Green
  • Patent number: 8060106
    Abstract: A method and system for acquisition of a service provider communications network by a mobile communications device is disclosed. In accordance with an embodiment of a method of the present invention, the method includes storing a control channel designation in a database in the mobile communications device and accessing the control channel designation from the database by the mobile device. The service provider communications network is acquired by the mobile communications device through a control channel associated with the control channel designation accessed from the database. In accordance with an embodiment of a system of the present invention, the system includes the mobile communications device with the database. A control channel designation is stored in the database.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: November 15, 2011
    Assignee: Nextel Communications Inc.
    Inventor: Wei-Ming Lan
  • Patent number: 8060121
    Abstract: Methods and systems are described for providing a presence service that is particularly useful for mobile telecommunications devices. A plurality of outgoing presence updates are sent to a presence client. The system monitors the level of network traffic and determines whether the client is in a region of high network load. If the client is in a region experiencing a condition of high network load, the system throttles the outgoing presence updates during the condition of high network load. The level of throttling may depend at least in part on the amount of time that has elapsed since the presence client began a presence session, and/or the amount of time that has elapsed since an incoming presence update was received from the presence client. In determining the latter amount of elapsed time, the system may consider only the amount of time elapsed since an incoming non-automatic presence update was received from the presence client.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: November 15, 2011
    Assignee: Sprint Spectrum L.P.
    Inventors: Yaojun Sun, Jing Qu, Joseph Schaedler, Wei-Ming Lan, Douglas R. Green
  • Patent number: 7920877
    Abstract: Methods and systems are provided for using base-station location to assist mobile-device system acquisition. A mobile station, which stores a network identifier, selects a carrier frequency. The mobile station receives, from a base station on a first carrier frequency, geographic coordinates of the base station and a base-station network identifier, and determines whether the base-station network identifier matches the mobile-station network identifier. If the base-station network identifier matches the mobile-station network identifier, the mobile station will scan the indicated home frequency bands and will connect to one of the home frequencies, and if the base-station network identifier does not match the mobile-station network identifier, the geographic coordinates of the base station are used to identify a market area and a most-preferred carrier frequency is selected from the identified market area.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: April 5, 2011
    Assignee: Clear Wireless LLC
    Inventors: Wei-Ming Lan, Abhinay Talaulicar
  • Patent number: 7877112
    Abstract: System and method for transferring data from a first subscriber identity module (SIM) card to a second SIM card are provided. The first SIM card is inserted into a wireless telephone. Software is downloaded to the wireless telephone. The software converts the data from a format of the first SIM card to a format of the second SIM card. The second SIM card is inserted into the wireless telephone, and the converted data is written to the second SIM card.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: January 25, 2011
    Assignee: Nextel Communications Inc.
    Inventors: Wei-Ming Lan, Daniel Lam
  • Publication number: 20100329181
    Abstract: A system, computer-readable medium, and method of operating a dual-mode WiMAX and CDMA communications device capable of operating in a CDMA mode or a WiMAX mode includes receiving a first base station (BS) location message from the BS and storing the received location as a current BS location. The BS location is compared to stored region coordinates for the different regions, and the comparison is used to determine a particular region in which the dual-mode device is currently located. Analysis determines whether a WiMAX market is located within the particular region. If no WiMAX markets are located, the dual-mode device is operated in the CDMA mode. If one or more WiMAX markets are located within the particular region, a determination is made as to whether the BS location is within a WiMAX market and, if so, the dual-mode device is placed in a WiMAX mode of operation. Battery power is conserved by avoiding WiMAX transmission when WiMAX service is not available at the current BS location.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: CLEAR WIRELESS, LLC
    Inventor: Wei-Ming LAN
  • Publication number: 20090325594
    Abstract: Methods and systems are provided for using base-station location to assist mobile-device system acquisition. A mobile station, which stores a network identifier, selects a carrier frequency. The mobile station receives, from a base station on a first carrier frequency, geographic coordinates of the base station and a base-station network identifier, and determines whether the base-station network identifier matches the mobile-station network identifier. If the base-station network identifier matches the mobile-station network identifier, the mobile station will scan the indicated home frequency bands and will connect to one of the home frequencies, and if the base-station network identifier does not match the mobile-station network identifier, the geographic coordinates of the base station are used to identify a market area and a most-preferred carrier frequency is selected from the identified market area.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Applicant: SPRINT SPECTRUM L.P.
    Inventors: Wei-Ming Lan, Abhinay Talaulicar
  • Publication number: 20060111147
    Abstract: System and method for transferring data from a first subscriber identity module (SIM) card to a second SIM card are provided. The first SIM card is inserted into a wireless telephone. Software is downloaded to the wireless telephone. The software converts the data from a format of the first SIM card to a format of the second SIM card. The second SIM card is inserted into the wireless telephone, and the converted data is written to the second SIM card.
    Type: Application
    Filed: May 20, 2005
    Publication date: May 25, 2006
    Applicant: NEXTEL COMMUNICATIONS, INC.
    Inventors: Wei-Ming Lan, Daniel Lam