Eid Electronic Identification Systems Ltd.

Other

Mark IV Transportation Products Corporation

Canadian National

Ultratec (1995) Inc.

William K Brockelsby

Conrad M Walker

Donald P Gillis

Howard A Baldwin

Michael L Hryciuk

Michael H Hryciuk

A method of triggering a transmitter implant during parturition is described. Firstly, provide a transmitter implant that is housed in a flexible housing and is activated to transmit a signal upon the housing being flexed. Secondly, implant the transmitter implant in a vulva lip of an animal where it will be unavoidably flexed during parturition.

Transmitter implant to indicate parturition

A system for exchanging information by means of transmitted RF signals between a fixed location interrogator and a vehicle transponder moving in the vicinity of the interrogator. The transponder responds to a first trigger signal from the interrogator by transmitting to the interrogator a first data message derived from data stored in a transponder memory. The interrogator then remotely reprograms the transponder memory and generates a second trigger pulse. The transponder responds to the second trigger pulse by transmitting the reprogrammed data it then stores and the interrogator analyzes the last mentioned transmission to determine if the transponder properly received and responded to the reprogramming.

Moving vehicle identification system

Antennas designed for use in producing effective electromagnetic capture zones for transponders mounted on moving vehicles. The antenna systems disclosed are principally designed to be mounted at or near the surface of a roadway carrying the vehicle whose transponder is to be interrogated. A principal advantage of the antennas of the invention is minimal interference with normal operation of the road and greatly reduced cost of installation when used in providing vehicle identification, toll collection, or communication with the transponder carrying vehicle.

Roadway antennae

An antenna system for mounting in a roadway comprised of an electrically lossy material. The antenna system has a reflector trough shield filled with a solid dielectric. An antenna, preferably comprised of coaxial cable, is positioned in the reflector trough, which prevents electromagnetic waves radiated by the antenna from being lost into the roadway.

Highway vehicle identification system with high gain antenna

An identification system to identify objects from a remote interrogation station may be used with moving objects such as railroad cars. The system remotely programs and stores information on an object and remotely retrieves information from the object. An information and identity storage device is located on the object and at least one interrogation station is located remotely from the object.

Growing community of inventors

Edmonton, Canada

William K Brockelsby