1
Manuel P Gabato Jr, John J Bozeki, Joseph A Charaska, Paul H Gailus: Method and apparatus for reducing spurs in a fractional-N synthesizer. Motorola, Barbara R Doutre, August 31, 2010: US07786772 (3 worldwide citation)

A method and apparatus for reducing in-band spurs in a fractional-N synthesizer (100) includes generating a compensated current signal by a charge pump (108) coupled to a phase detector (106). The compensated current signal includes in-band spurs having frequencies within a frequency bandwidth assoc ...


2
Paul H Gailus, John J Bozeki, Joseph A Charaska, Vadim Dubov, Manuel P Gabato Jr, Armando J Gonzalez: Method and apparatus for spur reduction in a frequency synthesizer. Motorola Solutions, Valerie M Davis, April 19, 2011: US07929929 (1 worldwide citation)

A frequency synthesizer includes: a frequency source generating a reference signal that includes a plurality of pulses having periodicity based on a reference frequency; a feedback loop that includes, a phase detector circuit, a loop filter, a controlled oscillator that generates an output signal at ...


3
Joshua E Dorevitch, John J Bozeki, Paul H Gailus, Mark Rozental: System and method for performing baseband phase shifting in a Cartesian feedback system. Motorola, August 31, 2010: US07787565

A system and method for performing baseband phase shifting in a Cartesian feedback system includes a forward path for receiving an input baseband signal having two components, and performing up-conversion to output a RF signal; a power amplifier for amplifying the RF signal output from the forward p ...


4
Joshua E Dorevitch, John J Bozeki, Paul H Gailus, Mark Rozental: System and method for performing baseband phase shifting in a cartesian feedback system. Motorola, Motorola, November 6, 2008: US20080273626-A1

A system and method for performing baseband phase shifting in a Cartesian feedback system includes a forward path for receiving an input baseband signal having two components, and performing up-conversion to output a RF signal; a power amplifier for amplifying the RF signal output from the forward p ...


5
Gustavo D Leizerovich, John J Bozeki, Clarence K Coffee, Josh E Dorevitch, Paul H Gailus, Mark A Kirschenmann: Power management of a transmitter and supporting methods and apparatus. Motorola, Motorola, July 6, 2006: US20060148430-A1

In the present technique for managing power of a transmitter on a mobile station, the transmitter power is checked (124) against a training current threshold that can result in the termination of a training ramp during level training mode of the mobile station. Another transmission current threshold ...


6
Manuel P Gabato JR, John J Bozeki, Joseph A Charaska, Paul H Gailus: Method and apparatus for reducing spurs in a fractional-n synthesizer. Motorola, Motorola, December 3, 2009: US20090295435-A1

A method and apparatus for reducing in-band spurs in a fractional-N synthesizer (100) includes generating a compensated current signal by a charge pump (108) coupled to a phase detector (106). The compensated current signal includes in-band spurs having frequencies within a frequency bandwidth assoc ...


7
Paul H Gailus, John J Bozeki, Joseph A Charaska, Vadim Dubov, Manuel P Gabato Jr, Armando J Gonzalez: Method and apparatus for spur reduction in a frequency synthesizer. Motorola, Motorola, March 26, 2009: US20090081984-A1

A frequency synthesizer includes: a frequency source generating a reference signal that includes a plurality of pulses having periodicity based on a reference frequency; a feedback loop that includes, a phase detector circuit, a loop filter, a controlled oscillator that generates an output signal at ...