Patents by Inventor Pak Lam

Pak Lam 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).

  • Security gatekeeper for a packetized voice communication network
    Publication number: 20070041362
    Abstract: Admission control means for controlling admission of traffic into a voice communication network, the admission control means comprises means for examining a call control message of a call control dialogue when admission of said traffic into said voice communication network is requested, the admission control means admit a traffic into said voice communication network only if the call control message accompanying the traffic admission request satisfies a pre-determined admission criterion.
    Type: Application
    Filed: August 18, 2005
    Publication date: February 22, 2007
    Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Pak Lam, Kar-Wing Lor