Patents by Inventor Barry William Rogers

Barry William Rogers 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).

  • Called party fraud detection in an automated coin system
    Patent number: 4046962
    Abstract: This invention pertains to systems servicing coin operated telephones and, more specifically, to apparatus in such systems for detecting when called parties fraudulently generate coin deposit tones to simulate the coin deposit tones which should be received from a calling coin station. During intermediate coin deposit intervals, the network connection between the calling and called stations is split. A first coin tone detector is connected to the calling station portion while a second coin tone detector is connected to the called station portion. Logic is responsive to the detection of coin tones by these detectors for indicating whether a detected coin tone is valid or fraudulent.
    Type: Grant
    Filed: September 3, 1976
    Date of Patent: September 6, 1977
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventor: Barry William Rogers