US 12,169,245 B2
GPS slope determination
Scott Nyhart, Shawnee, KS (US); and William Flood, Olathe, KS (US)
Assigned to Bushnell Inc., Overland Park, KS (US)
Filed by BUSHNELL INC., Overland Park, KS (US)
Filed on Jun. 8, 2022, as Appl. No. 17/835,760.
Claims priority of provisional application 63/208,114, filed on Jun. 8, 2021.
Prior Publication US 2022/0390620 A1, Dec. 8, 2022
Int. Cl. G01S 19/45 (2010.01); A63B 57/00 (2015.01); G01S 19/19 (2010.01)
CPC G01S 19/45 (2013.01) [A63B 57/505 (2015.10); G01S 19/19 (2013.01); A63B 2220/12 (2013.01); A63B 2220/18 (2013.01); A63B 2220/72 (2013.01); A63B 2220/73 (2013.01); A63B 2220/74 (2013.01); A63B 2225/50 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for determining distances, the device comprising:
a controller, a global positioning system (GPS) receiver, a pressure sensor;
a temperature sensor in communication with the controller;
and a non-transitory computer readable storage medium comprising a plurality of computer readable instructions embodied thereon which, when executed by the controller, causes the controller to:
determine the device's current geographic location based on current coordinates from the GPS receiver;
obtain a landmark location based on the landmark's GPS coordinates from a database;
determine a distance between the device and the landmark using the current GPS coordinates and the landmark's GPS coordinates;
convert the distance from the device's current location and the landmark location to a signal perceptible to a user; and
determine an elevation offset factor by executing computer readable instructions to:
obtain a reference location based on GPS coordinates and a reference elevation from a database;
determine whether the device's current location matches the reference location by comparing the reference GPS coordinates to the current GPS coordinates from the GPS receiver;
determine the device's pressure elevation based on pressure and temperature values received from the pressure sensor and the temperature sensor;
compare the device's pressure elevation to the reference elevation; and
determine the elevation offset factor based on the difference between the device's pressure elevation and the reference elevation when the device's location matches the reference location.