Patent ID: 8081298
Filing Date: 2011-12-20
Classification: F41G

Abstract:
1. A rangefinder device for determining a hold-over value at a particular range for a particular sight-in distance, the device comprising: a range sensor configured for determining a range to a target; a memory element storing a database of ranges and corresponding hold-over values for a default sight-in distance; and a computing element, coupled with the range sensor and the memory, configured for receiving an actual sight-in distance and the range to the target and for determining an adjusted hold-over value for the range to the target by comparing a first hold-over value from the database corresponding with the range to the target to a second hold-over value from the database corresponding with a range equal to the actual sight-in distance, wherein the computing element is configured to determine the adjusted hold-over value by subtracting the second hold-over value from the first hold-over value.