Abstract: A GPS device and method for converting display information between a first display mode and a second display mode by negativizing pixels or other image elements, wherein negativizing entails converting relatively larger areas of lighter image elements to darker image elements and converting relatively smaller areas of darker image elements to lighter image elements so as to result in reduced total emission of light.

Abstract: A telescopic sight (10) for automatically compensating for bullet trajectory deviations is disclosed. The sight (10) includes a user input (20) and an electronic port (22) for communicating ballistic, calibration and user preference information to the sight (10). The sight (10) further includes a ranger finder (24) and an array of ambient condition sensors (26,28,30,32,34,36) for automatically generating target distance information and ambient condition information. A processor (38) uses the ballistic, calibration, user preference, distance and ambient condition information to calculate bullet trajectory deviation compensation information. The processor (38) presents the compensation to the user in the form of a compensation reticle (48) or a compensation value (50).

Abstract: A method, device, and computer program for determining range to a target is disclosed. Specifically, the invention provides a method, device and computer program for determining a second range to a target based on a first range to the target and an angle to the target such that the parabolic trajectory of a projectile is accounted for in determining the second range. The device generally includes a range sensor for determining a first range to a target, a tilt sensor for determining an angle to the target, and a computing element for determining a second range to the target based on the first range and the determined angle.

Abstract: A method, device, and computer program for determining range to a target is disclosed. Specifically, the invention provides a method, device and computer program for determining a second range to a target based on a first range to the target and an angle to the target such that the parabolic trajectory of a projectile is accounted for in determining the second range. The device generally includes a range sensor for determining a first range to a target, a tilt sensor for determining an angle to the target, and a computing element for determining a second range to the target based on the first range and the determined angle.

Abstract: A method, device, and computer program for determining range to a target is disclosed. Specifically, the invention provides a method, device and computer program for determining a second range to a target based on a first range to the target and an angle to the target such that the parabolic trajectory of a projectile is accounted for in determining the second range. The device generally includes a range sensor for determining a first range to a target, a tilt sensor for determining an angle to the target, and a computing element for determining a second range to the target based on the first range and the determined angle.

Abstract: An apparatus (10) and method for allowing a moving user to automatically determine and store locations (11) over an extended period of time, to display the series of such locations (11), and to actively assist in returning to an earlier location. The apparatus (10) includes an antenna (16) for facilitating satellite lock, a fastening mechanism (18) for positioning the antenna (10) for best reception, and a satellite lock indicator (20) for communicating loss of satellite lock. The apparatus (10) also includes a timer (26) for measuring an interval during which the apparatus (10) is in a power-conserving sleep mode, and after which the user's current location is automatically determined. Active assistance in returning to an earlier location, either by traveling back along the path earlier traveled or by traveling along a more direct route, is accomplished by warning the user whenever the user's course deviates from the path or route.

Abstract: A portable altitude/azimuth telescope mount having an integral locator system with a magnetic encoder mechanism for facilitating location of astronomical objects and telescope positioning for observation thereof. A microprocessor receives signals from the encoder mechanism and translates such into position data for display. The locator system also includes a database of astronomical objects, including their locations and other relevant information. The mount is preferably provided with a drive mechanism adapted to allow for automatically or manually positioning the telescope to view astronomical objects and for automatically repositioning or steering the telescope in order to track the astronomical objects during extended viewing. When moved manually, components of the drive act as a clutch mechanism that effectively disengages the drive motor to avoid damage. An instance of the drive may be provided for each axis of movement.

Abstract: A goggle clip (10) that may be used to rotatably or pivotally secure a strap (12) to a goggle (14) with a concealed hinge. The clip (10) broadly comprises a main body (24) located outside a shroud (20) of the goggle (14) and secured to the strap (12), an axle (26) located inside the shroud (20), and a forwardly extending skirt (30) that substantially conforms to the shroud (20). The skirt (30) preferably maintains close proximity to the shroud (20) during rotation of the clip (10). Thus, the skirt (30) forms an aerodynamic seal with the shroud (20), thereby diverting airflow away from the hinge and preventing wind, dust, dirt, and other contaminants from interfering with the hinge's operation. Furthermore, the skirt (30) and the location of the axle (26) conceal the hinge, thereby providing a more aesthetically appealing goggle (14).

Abstract: A coated lens for use in a riflescope, telescope, spotting scope, binoculars, or the like is provided. The coating on the lens comprises two layers, an anti-reflective layer adjacent the lens and a hydrophobic layer disposed on the anti-reflective layer. The hydrophobic layer preferably includes an organosilane compound. Advantageously, the coating does not significantly reduce light transmission through the lens.

Abstract: A radar speed measurement device (10) comprising a display (12) for displaying a target speed, a radar emitter (14) for emitting radar waves toward a target, a radar receiver (16) for receiving radar waves reflected from the target, an analog to digital converter (18) for producing digital signals associated with the radar waves, and a signal processor (20) for determining the target speed by analyzing the digital signals. The device (10) can also calculate statistics associated with the target and further comprises a statistical processor (22) for calculating the statistics. The device (10) can operate in either of two modes. A speed mode is preferably used to determine the target speed, when the target is a race car or any other object. A baseball statistics mode is preferably used to determine the target speed, when the target is a baseball thrown by a pitcher.