Patents by Inventor Alan W. Robinson

Alan W. Robinson 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).

  • Touch control identification system with portable encoder
    Patent number: 4591854
    Abstract: A personnel identification system for controlling access to restricted equipment or restricted areas comprises a portable device such as a wrist watch (10) in which a unique digital identification code is stored, and a static control unit having a conductive touch element (12) and a code signal receiver (14) for comparing the identification code with a stored access code. The watch (10) includes a transmitter for transmitting the identification code as a modulated alternating signal by electrical conduction through the wearer's body to the touch element (12), so as to provide resistance to interfering radiated signals.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: May 27, 1986
    Assignee: Roundel Electronics Limited
    Inventor: Alan W. Robinson