Inventor
SHAPIRO STEVEN C
US5 patents
Patents
5 patentsUS5321735AJun 14, 1994
Method and apparatus for selective real time authorization and billing of calls in a public telepoint system
MOTOROLA INC122 citations97
US4940963AJul 10, 1990
Paging system with improved acknowledge-back capabilities
MOTOROLA INC273 citations97
US5090051AFeb 18, 1992
Radio communication system and method for connecting an incoming call to a wireless telephone
MOTOROLA INC184 citations96
US5345596ASep 6, 1994
Method and apparatus for establishing a communication link
MOTOROLA INC82 citations91
US5625271AApr 29, 1997
Battery charger adapter and method therefor
MOTOROLA INC16 citations70