Hemisphere GPS Awarded Four New Patents for Positioning and Automated Steering

    CALGARY, July 15 /CNW/ - (TSX: HEM) Today Hemisphere GPS, a leading
innovator and manufacturer of advanced GPS products; announced an expansion of
its intellectual property portfolio with four new patents. These patents are
the latest innovations in the areas of GPS positioning and automated steering.
    "Hemisphere GPS has built a reputation for creating optimized solutions,
especially with our positioning and machine control products," says Dr.
Michael Whitehead, Chief Scientist of Hemisphere GPS. "We are proud that we
not only meet the demands of the market, we anticipate future needs while
protecting our intellectual property. Our patents are evidence of our
commitment to provide customers with precise and innovative technology."
    The Satellite Position and Heading Sensor for Vehicle Steering Control
patent (U.S. Patent No. 7,400,956) is based on the company's successful and
patented Crescent(R) Vector(TM) technology used in marine navigation and
various precise positioning and attitude determination applications. Multiple
antennas are used to provide accurate heading and roll data in addition to
position. The heading and roll information provides accurate and dynamic
steering information, even on rough or sloped terrain. The data is provided
instantaneously and the quality is sustained over long periods of time.
Alternative methods use inertial components that offer short-term accuracy but
drift over time. Sophisticated steering algorithms based on accurate position
and attitude from the Crescent Vector technology, along with dynamic
calibration techniques that compare the vehicle response with the steering
commands, ensure simple operation and precise steering performance.
    The technology outlined in the Portable Reference Station for Local
Differential GPS Corrections patent (U.S. Patent No. 7,400,294) is currently
employed in the popular Outback Guidance(R) BaseLineHD(TM). This portable base
station provides differential corrections and requires minimal user setup - a
great choice for real-time centimeter-level positioning for machine control
applications. New reference locations are stored in the base station, and
additional locations can also be uploaded. The base station first determines
its own position, and then automatically determines the appropriate reference
location. From GPS data and the reference location, the base station computes
and broadcasts GPS corrections to a rover GPS receiver that can accurately
navigate a user. The user only has to place the base station in the desired
location and turn it on. It can provide centimeter-level performance and
accuracy that is repeatable from day to day, week to week, and even year to
    The Articulated Equipment Position Control System and Method patent (U.S.
Patent No. 7,373,231) enables the position of an implement to be controlled
while it is being towed behind a tractor or other self-propelled vehicle.
Using an articulated connector between the vehicle and the implement, the
control system interfaces with a steering guidance system to keep the
implement on a predetermined course. With this implement control technology, a
driver is able to make tighter turns at the end of a row without the implement
drifting to the inside of the turn and restricting movement. It will keep
implements on a precise path even on slopes, and can keep an implement on a
preset curve where the implement may not otherwise follow the direct path of
the vehicle. The patent covers the guidance algorithms and electrical
components that interface with the steering system.
    The Carrier Track Loop for GNSS Derived Attitude patent (U.S. Patent No.
7,388,539) provides a method and system for reducing inconsistencies on the
Global Navigation Satellite System (GNSS) carrier tracking loop. This
technology provides direct communication between two GPS receivers' tracking
loops in order to minimize common noise induced effects. By connecting two GPS
receivers and employing this communication method, the positional accuracy and
precision are enhanced. This technique also reduces the number of components
needed to achieve this level of performance, all of which translates into a
lower cost, higher value product for users. This technology is featured in the
Vector systems such as the popular V100(TM) and VS100(TM) products.
    "The addition of these patents further strengthens our intellectual
property portfolio," says Steven Koles, President and CEO of Hemisphere GPS.
"With 20 awarded patents and 19 more pending, Hemisphere GPS is confirming our
commitment to innovation and leadership in precise positioning, guidance and
machine control markets."

    About Hemisphere GPS

    Hemisphere GPS designs and manufactures innovative, cost-effective GPS
products for positioning, guidance, and machine control applications in
agriculture, marine and other markets. The Company holds numerous patents and
other intellectual property and owns leading brand names, including Outback
Guidance(R) and BEELINE(R), two of the leading brands in precision GPS for
ground agriculture. The Company is headquartered in Calgary, Alberta, with
major product development, sales, and marketing facilities in Arizona, Kansas,
Texas, and Australia. For more information about Hemisphere GPS, please go to

    The above disclosure contains certain forward-looking statements that
involve substantial known and unknown risks and uncertainties. These
forward-looking statements are subject to numerous risks and uncertainties,
certain of which are beyond Hemisphere GPS' control, including: the impact of
general economic conditions, industry conditions, increased competition, the
lack of availability of qualified personnel or management, fluctuations in
foreign exchange or interest rates, stock market volatility and market
valuations of companies with respect to the announced transactions and the
final valuations thereof, and obtaining required approvals of regulatory
authorities. Hemisphere GPS' actual results, performance or achievement could
differ materially from those expressed in, or implied by these forward-looking
statements and, accordingly, no assurances can be given that any of the events
anticipated by the forward-looking statements will transpire or occur, or if
any of them do so, what benefits, including the amount of proceed, that
Hemisphere GPS will derive there from.

For further information:

For further information: John Bohlke, Director of Product Marketing,
Hemisphere GPS, Phone: (480) 348-9919 x 7328, E-mail:
JBohlke@hemispheregps.com, www.hemispheregps.com; Cory Pala, Investor
Relations, E.vestor Communications Inc., (416) 657-2400, CPala@evestor.com

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