Patents by Inventor John N. MacDonald

John N. MacDonald 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).

  • Interoperability and coexistence between two disparate communication systems
    Publication number: 20040242159
    Abstract: Combined IEEE 802.11 (WiFi) and Bluetooth transceiver and method of operation employing busy signals to monitor when transmissions of each type are being transmitted or received, and employing a synchronizing signal to synchronize the use of time slots. In one embodiment, a simple two-wire interface is exposed linking Bluetooth and IEEE 802.11 radio systems. In another embodiment, the Bluetooth and IEEE 802.11 services can exchange information including scheduling, mode of operation, channel usage and device state via a shared resource such as a memory, referred to as a ‘mailbox’.
    Type: Application
    Filed: May 28, 2003
    Publication date: December 2, 2004
    Inventors: Roberto Calderon, Wilhelmus Diepstraten, John N. MacDonald, Ying Shen, Steven E. Strauss