Patents by Inventor Chor-Teck Law

Chor-Teck Law 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: 10820261
    Abstract: A radiofrequency system includes a plurality of transceivers providing a plurality of channels, and circuitry configured to perform off-channel functions. A first subset of channels performs radiofrequency communication functions, and a second subset of channels provides signals for the off-channel functions. The first subset of channels may be provided by a first subset of transceivers, and the second subset of channels may be provided by a second subset of transceivers. A spectrum sensing unit may select between the first subset of transceivers and the second subset of transceivers. The circuitry configured to perform the off-channel functions may use the second subset of the plurality of channels to perform neighborhood discovery.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: October 27, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Chor-Teck Law, Hongyuan Zhang, Sergey Timofeev, Mao Yu
  • Patent number: 10368303
    Abstract: A radiofrequency system includes a plurality of transceivers providing a plurality of channels, and circuitry configured to perform off-channel functions. A first subset of channels performs radiofrequency communication functions, and a second subset of channels provides signals for the off-channel functions. The first subset of channels may be provided by a first subset of transceivers, and the second subset of channels may be provided by a second subset of transceivers. A spectrum sensing unit may select between the first subset of transceivers and the second subset of transceivers. The circuitry configured to perform the off-channel functions may use the second subset of the plurality of channels to perform neighborhood discovery.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 30, 2019
    Assignee: Marvell International Ltd.
    Inventors: Chor-Teck Law, Hongyuan Zhang, Sergey Timofeev, Mao Yu
  • Patent number: 10182399
    Abstract: Systems and techniques relating to wireless networking, namely employing power management (PM) indication mechanisms in addition to ROM indication mechanisms so as to support ROM related outage period enhancements, include: transmitting a first data frame, wherein a format of the first data frame comprises: (i) a field indicating a change in receive operation mode (ROM) settings, and (ii) a subfield having a value indicating a power management mode of the wireless device; receiving an acknowledgement frame to enable a power management mode associated with the subfield in the first frame, the acknowledgement frame having been transmitted by a second wireless device in response to receiving the first frame by the second wireless device, wherein the power management mode delays transmission of additional frames to the first wireless device until receiving a second data frame having a value indicating a change in the power management mode.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: January 15, 2019
    Assignee: Marvell International Ltd.
    Inventors: Liwen Chu, Chor-Teck Law, Hongyuan Zhang, Hui-Ling Lou
  • Patent number: 9820117
    Abstract: The present disclosure describes methods and apparatus for advertising a service in a wireless network via surrogacy. A principal (e.g., first) wireless communication device may request via a first wireless channel that an agent (e.g., second) wireless communication device (i) act as a surrogate and (ii) function in accordance with a social announcement scheme, which is associated with a second wireless channel, and with regard to a service that is available. The principal wireless communication device may have offered services or wanted services. The agent wireless communication device may perform an announcement operation with other wireless communication device(s) on behalf of the principal wireless communication device via the second wireless channel to discover or advertise a service that is available.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: November 14, 2017
    Assignee: Marvell International Ltd.
    Inventors: Binh Quoc Tran, Chor-Teck Law
  • Patent number: 9386519
    Abstract: An access point including a first processor and a network device. The network device is separate from the first processor. The first processor transitions between first and second power modes. The network device includes a second processor and first and second interfaces. The second processor, while the first processor is in the second power mode, (i) causes the second interface to transmit a beacon, or (ii) receives a probe request from a client device. The second interface, while the first processor is in the second power mode, (i) transmits a probe response over a wireless local area network to the client device based on the beacon or the probe request, and (ii) receives an authentication frame from the client device based on the probe response. The second processor, in response to the authentication frame, signals the first processor via the first interface to transition to the first power mode.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: July 5, 2016
    Assignee: Marvell International Ltd.
    Inventors: Yubin Gong, Chor-Teck Law, Brian Bosso, Rajesh Shreeram Bhagwat
  • Patent number: 9195485
    Abstract: A wireless network device includes a wireless network port, first and second virtual machines, and a processor. While executing the first virtual machine, the processor stores, in a third queue, data to be processed by the first virtual machine and the first virtual machine maintains, in a first queue, a copy of the data stored in the third queue. While executing the second virtual machine, the processor stores, in the third queue, data to be processed by the second virtual machine and the second virtual machine maintains, in a second queue, a copy of the data stored in the third queue. Upon resuming execution, the first virtual machine transfers, to the third queue, the copy of the data maintained in the first queue. Upon resuming execution, the second virtual machine transfers, to the third queue, the copy of the data maintained in the second queue.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: November 24, 2015
    Assignee: Marvell International Ltd.
    Inventors: James Chieh-Tsung Chen, Chuong Vu, Chor-Teck Law, Binh Quoc Tran, Jiaqi Shen, Brian Bosso
  • Patent number: 8885531
    Abstract: Apparatus having corresponding computer-readable media comprise: a host device comprising a first network interface configured to communicate over a wired local-area network, and a first processor; and a wireless network device comprising a second network interface configured to communicate over a wireless local-area network, and a second processor configured to cause the second network interface to transmit IEEE 802.11 beacon frames and IEEE 802.11 probe response frames over the wireless local-area network without communicating with the first processor of the host device.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: November 11, 2014
    Assignee: Marvell International Ltd.
    Inventors: Yubin Gong, Chor-Teck Law, Brian Bosso, Rajesh Shreeram Bhagwat
  • Patent number: 8818261
    Abstract: In one aspect, a wireless station includes a transmitter to wirelessly transmit discovery packets to a proximately located network device, a receiver to wirelessly receive an input from the proximately located network device, an engine to manage a configuration of the network device, and a power selector to control a power level output by the transmitter, enable transmission at a first power during configuration of the proximately located network device, and enable transmission at a second power after configuration of the proximately located network device, wherein the first power is different than the second power, and the first power helps prevent snooping during the configuration.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: August 26, 2014
    Assignee: Marvell International Ltd.
    Inventors: James Chieh-Tsung Chen, Chor-Teck Law, Brian Bosso, May Chiang
  • Patent number: 8787572
    Abstract: Techniques and systems for associating a client with an access point using a security protocol are described. A described technique includes initiating an association request; establishing an association between a first device and a second device different from the first device based on the association request; participating in a handshake including exchanging an operational key between the first device and the second device during the handshake; and entering an operational phase using the operational key when the handshake is successful. Participating in the handshake can include participating in an authenticated handshake when the association request indicates an authenticated access, and participating in an unauthenticated handshake when the association request indicates an unauthenticated access.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: July 22, 2014
    Assignee: Marvell International Ltd.
    Inventors: Claudius Tewari, Brian Bosso, Chor-Teck Law, Heng-Jui H. Hsu, James Chieh-Tsung Chen, James Chih-Shi Yee
  • Patent number: 8582507
    Abstract: A system to wirelessly communicate with a wireless network. The system includes a memory and a processor. The memory is configured to store a first queue, a second queue, and a processor queue. The processor is configured to: selectively execute a first virtual machine using the processor queue; while executing the first virtual machine, maintain the first queue as a copy of data in the processor queue; selectively execute a second virtual machine using the processor queue; and while executing the second virtual machine, maintain the second queue as a copy of data in the processor queue.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: November 12, 2013
    Assignee: Marvell International Ltd.
    Inventors: James Chieh-Tsung Chen, Chuong Vu, Chor-Teck Law, Binh Quoc Tran, Jiaqi Shen, Brian Bosso
  • Patent number: 8131209
    Abstract: Systems and methods are provided for automatically setting up an initial configuration of a wireless repeater and managing one or more wireless repeaters in a wireless local area network.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: March 6, 2012
    Assignee: Marvell International Ltd.
    Inventors: James Chieh-Tsung Chen, Chor-Teck Law, Brian Bosso, May Chiang
  • Patent number: 8126145
    Abstract: The invention relates to a method for associating a client with an access point using a security protocol. The method may include initiating a handshake and exchanging operational information between the access point and the client, establishing an encrypted operational key if the operational information is validated and entering an operational phase using the operational key and an unique service set identifier if valid.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: February 28, 2012
    Assignee: Marvell International Ltd.
    Inventors: Claudius Tewari, Brian Bosso, Chor-Teck Law, Heng-Jui H. Hsu, James Chieh-Tsung Chen, James Chih-Shi Yee
  • Patent number: 8018892
    Abstract: A method, apparatus, and computer-readable media for a wireless network device for communicating with a network comprises a memory to store an image comprising a plurality of virtual machines and only one multi-tasking operating system, wherein each of the virtual machines comprises a wireless network application to execute on the multi-tasking operating system; a processor to execute the virtual machines; and a port comprising a physical-layer device to communicate with the network, and a media access controller to communicate with the physical-layer device and the processor.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: September 13, 2011
    Assignee: Marvell International Ltd.
    Inventors: James Chieh-Tsung Chen, Chuong Vu, Chor-Teck Law, Binh Quoc Tran, Jiaqi Shen, Brian Bosso
  • Patent number: 7990938
    Abstract: Systems and methods are provided for automatically setting up an initial configuration of a wireless client (i.e., for a first wireless client and subsequent wireless clients added to a network), including keyboard-less and (graphical user interface) GUI-less clients, and an access point without using confusing manual configuration utilities.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: August 2, 2011
    Assignee: Marvell International Ltd.
    Inventors: Chuong Vu, James Chieh-Tsung Chen, Chor-Teck Law, Brian Bosso, Eric B. Janofsky
  • Patent number: 7768959
    Abstract: A method, apparatus, and computer-readable media for a wireless network device for communicating with a network comprises a memory to store an image comprising a plurality of virtual machines and only one multi-tasking operating system, wherein each of the virtual machines comprises a wireless network application to execute on the multi-tasking operating system; a processor to execute the virtual machines; and a port comprising a physical-layer device to communicate with the network, and a media access controller to communicate with the physical-layer device and the processor.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: August 3, 2010
    Assignee: Marvell International Ltd.
    Inventors: James Chieh-Tsung Chen, Chuong Vu, Chor-Teck Law, Binh Quoc Tran, Jiaqi Shen, Brian Bosso
  • Patent number: 7636338
    Abstract: Systems and methods are provided for automatically setting up an initial configuration of a wireless client (i.e., for a first wireless client and subsequent wireless clients added to a network), including keyboard-less and (graphical user interface) GUI-less clients, and an access point without using confusing manual configuration utilities.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: December 22, 2009
    Assignee: Marvell International Ltd.
    Inventors: Chuong Vu, James Chieh-Tsung Chen, Chor-Teck Law, Brian Bosso, Eric B. Janofsky