Patents by Inventor Chun Hau Lau

Chun Hau Lau 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).

  • Peer-to-peer communication in wireless sensor network through delay response between packets
    Patent number: 8312351
    Abstract: A method for transmitting data between first and second nodes in a network comprises (a) the first node sending a start packet to the second node, (b) the first node starting a first counter concurrently with sending the start packet, wherein the first counter starts counting, (c) the second node starting a timer in response to the start packet, (d) the second node starting a second counter in response to the timer running for a predetermined delay time, wherein the second counter starts counting, (e) the first node stopping the first counter and sending a stop packet in response to the first node determining that the number of accumulated first counts corresponds to the data (thereby transmitting the data solely as a time interval between the start and stop packets), the second node stopping the second counter in response to the stop packet (and receiving the transmitted data).
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: November 13, 2012
    Assignees: Nanyang Technological University, Singapore Technologies Dynamics Ptd Ltd
    Inventors: Chun Hau Lau, Boon Hee Soong, Lili Zhang
  • PEER-TO-PEER COMMUNICATION IN WIRELESS SENSOR NETWORK THROUGH DELAY RESPONSE BETWEEN PACKETS
    Publication number: 20100257424
    Abstract: A method for transmitting data between first and second nodes in a network comprises (a) the first node sending a start packet to the second node, (b) the first node starting a first counter concurrently with sending the start packet, wherein the first counter starts counting, (c) the second node starting a timer in response to the start packet, (d) the second node starting a second counter in response to the timer running for a predetermined delay time, wherein the second counter starts counting, (e) the first node stopping the first counter and sending a stop packet in response to the first node determining that the number of accumulated first counts corresponds to the data (thereby transmitting the data solely as a time interval between the start and stop packets), the second node stopping the second counter in response to the stop packet (and receiving the transmitted data).
    Type: Application
    Filed: October 20, 2008
    Publication date: October 7, 2010
    Inventors: Chun Hau Lau, Boon Hee Soong, Lili Zhang