Patent application 13442486 (US), filed 2012-04-09
Publication number: US20130088389A1
Title: SELECTION METHOD OF SATELLITES FOR RTK POSITIONING CALCULATION AND A SELECTION DEVICE OF SATELLITES FOR THE SAME
CPC codes: G01S  19/22
G01S  19/28
G01S  19/43
Office action: rejection, dated 2015-10-14
Rejection reasons: indefiniteness_112
Final disposition: granted (2015-10-14)