Inventor
MA STEPHEN CHIH-HUNG
US12 patents
Patents
12 patentsUS5856804AJan 5, 1999
Method and intelligent digital beam forming system with improved signal quality communications
MOTOROLA INC201 citations98
US6061023AMay 9, 2000
Method and apparatus for producing wide null antenna patterns
MOTOROLA INC162 citations97
US6038265AMar 14, 2000
Apparatus for amplifying a signal using digital pulse width modulators
MOTOROLA INC109 citations97
US5754139AMay 19, 1998
Method and intelligent digital beam forming system responsive to traffic demand
MOTOROLA INC140 citations97
US5754138AMay 19, 1998
Method and intelligent digital beam forming system for interference mitigation
MOTOROLA INC70 citations96
US6002375ADec 14, 1999
Multi-substrate radio-frequency circuit
MOTOROLA INC71 citations94
US5920596AJul 6, 1999
Apparatus for amplifying a signal using a digital processor
MOTOROLA INC33 citations92
US6184827B1Feb 6, 2001
Low cost beam steering planar array antenna
MOTOROLA INC24 citations91
US5917447AJun 29, 1999
Method and system for digital beam forming
MOTOROLA INC52 citations91
US6100756AAug 8, 2000
Method and apparatus for high efficiency power amplification
MOTOROLA INC8 citations73
US5961579AOct 5, 1999
Apparatus using a logarithm based processor
MOTOROLA INC8 citations73
US6032168AFeb 29, 2000
Computer system to perform a filter operation using a logarithm and inverse-logarithm converter and methods thereof
MOTOROLA INC3 citations61