Patents by Inventor Ronald Bjorkland

Ronald Bjorkland 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).

  • Multi-tier wireless communications architecture, applications and methods
    Patent number: 7492248
    Abstract: Multi-tier system for digital radio communication. The multi-tier system has a first-tier base station with relatively long-range radio and has a second-tier base station with relatively short-range, low power and cheaper radios. The system can be more versatilely configured to meet demands of various applications. The application may include data capture using bar code readers, radio frequency readers and other automatic data capture devices. The system may also be used to control hotel door locks, individual room temperature control, remote video monitoring—all without having to wire and with much flexibility given the two types of radios employed.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: February 17, 2009
    Assignee: Symbol Technologies, Inc.
    Inventors: Ronald Bjorkland, Raj Bridgelall, William Derouchey, Charles Furedy, Narayan Nambudiri, Richard Watson