Patents by Inventor Sheung L. Li

Sheung L. Li 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: 7319867
    Abstract: A method and apparatus to wirelessly control network devices is described. In one embodiment, a wireless device is used to control at least one host device using a network. In one aspect, a wireless device receives and determines a response to network control signals received thereto. In another aspect, a wireless device controls a host sleep sequence to allow a network to remotely power a host device between an active and passive state. In one aspect, a wireless device provides one or more network identification responses to signals received from the network. In another aspect, a network provides an alert to a third party such as a network administrator if the network determines a wireless device is absent from the network due to a loss of signal therefrom.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: January 15, 2008
    Assignee: Atheros Communications, Inc.
    Inventor: Sheung L. Li
  • Patent number: 7274911
    Abstract: Countries or regions of the world can have different regulations governing wireless devices. A client product advantageously conforms to any regulatory environment, thereby allowing the client product to operate permissibly in any wireless network. The client product scans all frequencies at a predetermined interval for explicit information on regulation-conformant methods of operation, including frequencies and output power levels. If the client product receives a beacon, then the client product extracts relevant information from the beacon. Based on the relevant information, the client product operates in either the infrastructure mode or the ad hoc mode. On the other hand, if the client product does not receive explicit information, the client product detects other types of information and implicitly derives methods of operation in both infrastructure and ad hoc modes that conform to local regulations.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: September 25, 2007
    Assignee: Atheros Communications, Inc.
    Inventor: Sheung L. Li