Patents Assigned to Widcomm, Inc.
  • Patent number: 6691173
    Abstract: A method and apparatus for internetworked communication between first and second wireless networks containing first and second pluralities of wireless nodes, respectively, is disclosed herein. In a preferred implementation an internetworking node participates in both the first and second wireless networks, and receives a first set of network information identifying each of the first plurality of wireless nodes and the services offered thereby. The internetworking node is configured to transmit the first set of network information to a master node of the second wireless network. The internetworking node also receives, from the second wireless network, a second set of network information identifying each of the second plurality of wireless nodes and the services offered thereby. In addition, the internetworking node may also transmit the second set of network information to a master node of the first wireless network.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: February 10, 2004
    Assignee: Widcomm, Inc.
    Inventors: Martin Morris, Rajiv Kumar, Lyn Nguyen, Hiep Pham
  • Patent number: 6654614
    Abstract: A method and apparatus for internetworked communication between first and second wireless networks containing first and second pluralities of wireless nodes, respectively, is disclosed herein. In a preferred implementation a first dual-power node participates in both a first wireless network and an overlay network. The dual-power node is configured to transmit and receive in both a high-power mode and a low-power mode. The dual-power node operates in an overlay network and facilitates data transmission between low-power nodes and high-power nodes by toggling between these two power modes. In a preferred implementation, a third wireless network containing a third plurality of wireless nodes is utilized. The overlay network can accommodate a plurality of high-power or dual-power nodes.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: November 25, 2003
    Assignee: Widcomm, Inc.
    Inventors: Martin Morris, Rajiv Kumar, Lyn Nguyen, Hiep Pham
  • Patent number: 6643336
    Abstract: An offset estimation and bit timing system and method configured to detect a DC offset in a received signal is disclosed herein. The inventive system includes a first circuit for receiving and correlating a transmitted signal and generating a trigger signal in response thereto. A second circuit accumulates the received signal and provides a second signal on receipt of the trigger signal. The second signal is then converted to an offset error signal. The error signal is converted to analog and used as a reference input for an A/D converter. As an alternative, the error signal may be used to adjust the signal output by an intermediate frequency downconversion stage.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: November 4, 2003
    Assignee: Widcomm, Inc.
    Inventors: Hsiang-Tsuen Hsieh, Jyothis S. Indirabhai
  • Publication number: 20030040328
    Abstract: According to the present invention, Bluetooth master device offset information is determined and distributed among the master devices within a Bluetooth network. The system either provides an offset to each master device or determines master device offsets and distributes this information to master devices within the system to allow or efficient hand-offs of a slave between master devices.
    Type: Application
    Filed: August 21, 2001
    Publication date: February 27, 2003
    Applicant: Widcomm, Inc.
    Inventor: Jyothis Indirabhai