Calgary, AB, USA — January 26, 2009 — (TSX: HEM) Hemisphere GPS has been awarded two new US patents. The Satellite Based Vehicle Guidance Control in Straight and Contour Modes patent (U.S. Patent No. 7,437,230) is for a method and system in which an agricultural vehicle is steered using GPS data. The method computes the position and heading of the vehicle, among other data components, to provide steering guidance. This patent covers the method for providing guidance both for straight (parallel) and contour (curved or circular) paths. It is currently being utilised in Hemisphere GPS’ successful Outback eDriveTC and GPSteer products, and allows farmers to accurately position their vehicles to avoid skipped or overlapped rows, minimise wasted seed and chemicals, and decrease overall input costs.
The Soil Cultivation Implement Control Apparatus and Method patent (U.S. Patent No. 7,460,942) enables the position of a towed agricultural implement to be controlled and maintained using GPS data. The system includes an intra-rig sensor and a GPS receiver, which relay the absolute position of the implement relative to the earth. The system can then move the implement laterally using a hydraulic actuator; to keep it from drifting off the desired path. This technology will enable farmers to cultivate precise and repeatable rows even with large and heavy towed implements, which are sometimes difficult to control. The Implement Control technique is a variation on Hemisphere GPS’ other equipment position control patents, giving the company even greater protection of its intellectual property and broader coverage in the marketplace.
“We are looking forward to 2009 to be another strong year for Hemisphere GPS,” says Dr. Mike Whitehead, Chief Scientist of Hemisphere GPS. “We are anticipating being awarded several more patents for our innovations this coming year. Of course, our customers will enjoy the fruits of that labor as we bring even more technologically advanced and robust products to market.”