Patents Examined by Xiao Qin (Vincent) Lu
  • Patent number: 7385945
    Abstract: In an access point operating in a wireless local area network, a method is disclosed for assisting a radio manager to manage a radio environment without location information. By performing radio discovery to receive beacon signals from neighboring access points, an initial configuration of a radio environment is generated based on the received beacon signals. Measurements are received from a client device that performs measurements by a user walking through a desired coverage area while operating the client device and the radio configuration is adjusted based on the received measurements.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: June 10, 2008
    Assignee: Cisco Technology, Inc.
    Inventors: Timothy S. Olson, Sreenivas Devalla
  • Patent number: 7298756
    Abstract: A system and method are provided for controlling packet header information in a packet communications switch fabric. The method comprises: programming the cell header overhead (OH) field definitions; accepting a packet including a plurality of cells and corresponding cell headers, each cell header including a plurality of overhead fields; defining the cell header OH fields; and, transmitting the packet. Defining the cell header OH fields includes defining cell header OH field location, position, meaning, structure, and length. In other aspects, the method comprises redefining the cell header overhead fields, once they are accepted. For example, the OH field information can be modified, relocated, or an OH field can be added to the cell header. In yet other aspects, the OH field information can be extracted and/or reformatted.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: November 20, 2007
    Assignee: Applied Micro Circuits Corporation
    Inventors: Kirk Alvin Miller, Prayag Bhanubhai Patel, Peter John Holzer, John Calvin Leung, George Beshara Bendak, Jim Lew
  • Patent number: 7292548
    Abstract: An apparatus and method manages timings of Node Bs by performing a first-step cell search on primary synchronization channel signals transmitted from the Node Bs, and stores frame boundary indexes representing frame boundaries for the Node Bs by performing a second-step cell search on secondary synchronization channel signals received from the Node Bs. Upon receiving a third-step cell search start command, the apparatus and method compares frame boundary timing corresponding to each of the frame boundary indexes to a current timing from a reference timer, performs a third-step cell search on hypotheses corresponding to the frame boundary indexes at a next slot boundary following the current timing by using scrambling codes in a Node B code group obtained by the second-step cell search, and provides a third-step cell search complete information after completing the third-step cell search on hypotheses corresponding to the frame boundary indexes.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: November 6, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chae-Man Lim, Yong-Serk Kim