Patents by Inventor Zvi Dershowitz

Zvi Dershowitz 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).

  • System for monitoring a multiplicity of doors using multiple optical transceivers mounted on each door
    Patent number: 5504325
    Abstract: A system for monitoring a multiplicity of doors including at least two optical transceivers mounted on each of the multiplicity of doors and communication apparatus for communicating with the optical transceivers mounted on each of the multiplicity of doors thereby to verify their position, the communication apparatus being operative to communicate with the optical transceivers on each of the multiplicity of doors via plural serial communications pathways, at least one of the plural pathways extending via optical transceivers mounted on a plurality of different doors.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: April 2, 1996
    Assignee: Elisra Electronic Systems Ltd.
    Inventors: Gad Talmon, Zvi Dershowitz