1
Hans P Moravec, James R Beninghaus, Michael K Blackwell, Kevin J Dowling, J Rhoads Hollowell II: Apparatus and method for determining a charge of a battery. Apple Computer, Blakely Sokoloff Taylor & Zafman, January 21, 1997: US05596260 (240 worldwide citation)

In an electronic device powered by a battery, a method of determining a charge of the battery. Initially, a discharge curve specifying the battery's voltage as a function of time is determined. This discharge curve is calibrated according to actual measurements. Next, a battery state model is establ ...


2
Moravec Hans P, Beninghaus James R, Blackwell Michael K, Dowling Kevin J, Hollowell J Rhoads Ii: Apparatus and method for determining a charge of a battery. Apple Computer, SCHELLER James C, November 23, 1995: WO/1995/031734

In an electronic device powered by a battery, a method of determining a charge of the battery. Initially, a discharge curve specifying the battery's voltage as a function of time is determined. This discharge curve is calibrated according to actual measurements. Next, a battery state model is establ ...