Patents by Inventor Sek Kin Neng

Sek Kin Neng 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: 9366750
    Abstract: A method and apparatus for: receiving a radio frequency (RF) signal on a first channel; determining a radio signal strength of the RF signal; performing a correlation of the RF signal with a predetermined sequence of a wireless data packet to determine whether the RF signal contains the predetermined sequence; in response to the RF signal not containing the predetermined sequence, generating an indication that the RF signal is not a wireless data packet; and determining whether the radio signal strength of the RF signal exceeds a predetermined threshold. In response to i) the radio signal strength exceeding the predetermined threshold and ii) the indication being generated: measuring a parameter associated with the RF signal; determining whether the RF signal is a radar signal based on the parameter; and changing from the first channel in response to the RF signal being determined to be a radar signal.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: June 14, 2016
    Assignee: Marvell World Trade LTD.
    Inventors: Bhaskar V. Nallapureddy, Tsunglun Yu, Yungping Hsu, Sek Kin Neng
  • Patent number: 8406719
    Abstract: A receiver is provided and includes a first amplifier configured to amplify, based on a first gain, a radio frequency signal to generate a first amplified signal. The radio frequency signal is received by the receiver on a first channel. A second amplifier generates, based on the first amplified signal and a second gain, a second amplified signal. An output circuit generates a baseband signal based on the second amplified signal. A first detection circuit compares the baseband signal to (i) a first threshold in response to the first gain being at a first level, and (ii) a second threshold in response to the first gain being at a second level. The first detection circuit generates a first detection signal in response to the comparison. A controller, in response to the first detection signal, (i) adjusts the second gain, or (ii) changes the receiver from the first channel.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: March 26, 2013
    Assignee: Marvell International Ltd
    Inventors: Sek Kin Neng, Yungping Hsu, Tsunglun Yu, Ming Ta Lin, Naveen-Kumar Arani
  • Patent number: 8180308
    Abstract: A communication apparatus includes a radio frequency (RF) apparatus. The RF apparatus includes an amplifier, and a signal detection circuit. The amplifier receives RF signals and amplifies those signals. The amplifier has an adjustable gain value. The signal detection circuit detects whether a received signal is an out-of-band radar signal depending on the gain value of the amplifier and a characteristic of the received signal.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: May 15, 2012
    Assignee: Marvell International Ltd.
    Inventors: Sek Kin Neng, Yungping Hsu, Tsunglun Yu, Ming Ta Lin, Naveen-Kumar Arani
  • Publication number: 20100202359
    Abstract: A wireless network device includes a correlation module, an automatic gain control module, and a control module. The correlation module correlates a predetermined portion of a radio frequency (RF) signal and generates a correlation signal based thereon. The automatic gain control (AGC) module generates a gain control signal based on said RF signal. The control module selectively determines whether said RF signal is a radar signal based on said correlation signal and said gain control signal.
    Type: Application
    Filed: April 16, 2010
    Publication date: August 12, 2010
    Inventors: Bhaskar V. Nallapureddy, Tsunglun Yu, Yungping Hsu, Sek Kin Neng
  • Patent number: 7702044
    Abstract: A wireless network device includes a correlation module, an automatic gain control module, and a control module. The correlation module correlates a predetermined portion of a radio frequency (RF) signal and generates a correlation signal based thereon. The automatic gain control (AGC) module generates a gain control signal based on said RF signal. The control module selectively determines whether said RF signal is a radar signal based on said correlation signal and said gain control signal.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: April 20, 2010
    Assignee: Marvell World Trade, Ltd.
    Inventors: Bhaskar V. Nallapureddy, Tsunglun Yu, Yungping Hsu, Sek Kin Neng