METHOD AND APPARATUS FOR GENERATING CONSTANT ENVELOPE MODULATION USING A QUADRATURE TRANSMITTER
摘要
A multi-mode communication device (100) uses a quadrature transmitter (102) for transmitting both amplitude and constant envelope angle-modulated signals. For angle modulation, a separate feedback path is used from that used for amplitude modulated signal transmission. An FM receiver (136) is used to produce error signals (214, 216) used in correcting the I and Q quadrature signals (206, 208).
申请公布号
WO2008082867(A3)
申请公布日期
2009.02.05
申请号
WO2007US87084
申请日期
2007.12.11
申请人
MOTOROLA, INC.;ANDERSON, GEORGE, C.;KORNELUK, JOSE E.;RAVEN, GREGORY S.
发明人
ANDERSON, GEORGE, C.;KORNELUK, JOSE E.;RAVEN, GREGORY S.