Patents by Inventor Josef Gehrig

Josef Gehrig 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).

  • Method and device for radio communication in traffic guidance systems
    Patent number: 5937358
    Abstract: A radio communication between central and peripheral units (LST, SUP, FZ, PAC, LSA) of a traffic guidance system which, in particular, is comprised of a master terminal (LST), vehicles (FZ) and passenger information systems (PAC) and optical signal units (LSA) to control the flow of traffic, which communicate with one another via at least two voice and two data channels (SK1, SK2, DK1, DK2) in such a way that messages are transmitted from the central unit (LST) to the peripheral units (FZ, PAC) via the first data channel (DK1) and correspondingly from the peripheral units (FZ, PAC) to the central unit (LST) via the second data channel (DK2). Further, the central and the peripheral units (LST, FZ, PAC) communicate via the first and the peripheral units (FZ) among one another at close range via the second voice channel (SK1 or SK2).
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: August 10, 1999
    Assignee: Hani-Prolectron AG
    Inventor: Josef Gehrig