A novel apparatus and method of improving the power efficiency of a digital transmitter for
non-constant-amplitude modulation schemes. The power efficiency improvement …

(57) ABSTRACT A novel apparatus and method of linearization of a digitally controlled pre-
power amplifier (DPA) and RF power ampli fier (PA). The mechanism is operative to perform …

CKV (fy) operative to select one of the plurality of phases. A phase detection circuit is
coupled to the switch and is operable to receive a selected phase and to provide digital …

(57) ABSTRACT A novel and useful apparatus for and method of spur reduc tion using
computation spreading with dithering in a digital phase locked loop (DPLL) architecture. A …

A novel mechanism for simultaneous multiple signal reception and transmission using
frequency multiplexing and shared processing. Multiple RF signals, which may be of various …

A novel and useful apparatus for and method of predistortion calibration and built-in self
testing (BIST) of a nonlinear digitally-controlled radio frequency (RF) power amplifier (DPA) …

(*) Notice: Subject to any disclaimer, the term of this 2006 0133559 Al* 6/2006
Glass............................ 375,376 patent is extended or adjusted under 35* cited by examiner …

An embodiment of the present invention provides a phase locked loop that operates on
clock signals derived from an RF clock signal generated by the phase locked loop. A …

A novel and useful apparatus for and method of improving the quantization resolution of a
time to digital converter in a digital PLL using noise shaping. The TDC quantization noise …

An apparatus and method of linearization of a digitally-con trolled pre-power amplifier (DPA)
and RF power amplifier (PA) for performing predistortion calibration to compensate for …