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Class Information
Number: 332/144
Name: Modulators > Phase modulator
Description: Subject matter in which the phase of the carrier is varied over a continuum of values in accordance with the modulating signal.










Sub-classes under this class:

Class Number Class Name Patents
332/145 Including amplitude modulator 125
332/146 Including discrete semiconductor device 43
332/147 Including electron discharge device 0


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8704594 Dual rail out-phased envelope tracking modulator Apr. 22, 2014
8692702 Analog-digital converter and power saving method thereof Apr. 8, 2014
8598959 Modulation apparatus, phase setting method and test apparatus Dec. 3, 2013
8532590 Digital phase feedback for determining phase distortion Sep. 10, 2013
8513908 Fan speed control circuit Aug. 20, 2013
8502615 Jumpless phase modulation in a polar modulation environment Aug. 6, 2013
8493158 Polar feedback architecture Jul. 23, 2013
8494005 Technique for adjusting a phase relationship among modulation symbols Jul. 23, 2013
8466755 Polar modulation apparatus and communication device Jun. 18, 2013
8358178 Phase modulation apparatus and method Jan. 22, 2013
8258877 Feed-back and feed-forward systems and methods to reduce oscillator phase-noise Sep. 4, 2012
8222966 System, method and apparatus for an open loop calibrated phase wrapping phase modulator for wideband RF outphasing/polar transmitters Jul. 17, 2012
8198950 Power amplifier Jun. 12, 2012
8174310 Quadrature modulation demodulation circuit May. 8, 2012
8143965 Enhanced polar modulator for transmitter Mar. 27, 2012
8143959 Jitter generation apparatus, device test system using the same, and jitter generation method Mar. 27, 2012
8134421 Voltage control oscillator and quadrature modulator Mar. 13, 2012
8081042 Apparatus, method and computer program Dec. 20, 2011
8045937 Digital phase feedback for determining phase distortion Oct. 25, 2011
8044742 Wideband phase modulator Oct. 25, 2011
8022782 Two-point phase modulator and method of calibrating conversion gain of the same Sep. 20, 2011
7969254 I/Q impairment calibration using a spectrum analyzer Jun. 28, 2011
7944319 Clock spreading systems and methods May. 17, 2011
7880201 Optical modulator using a serpentine dielectric layer between silicon layers Feb. 1, 2011
7869541 Method and system for direct and polar modulation using a two input PLL Jan. 11, 2011
7830217 Method and system of vector signal generator with direct RF signal synthesis and parallel signal processing Nov. 9, 2010
7804377 Apparatus and method for producing an SBPSK-type modulated signal using piecewise linear phase transition shaping Sep. 28, 2010
7772936 Polar feedback architecture Aug. 10, 2010
7760043 Polar modulation apparatus Jul. 20, 2010
7755443 Delay-based modulation of RF communications signals Jul. 13, 2010
7750750 Enhanced polar modulator for transmitter Jul. 6, 2010
7675379 Linear wideband phase modulation system Mar. 9, 2010
7671692 Apparatus and method for compensating carrier feedthrough in quadrature modulation system Mar. 2, 2010
7595702 Modulation apparatus capable of correcting non-linearity of voltage controlled oscillator Sep. 29, 2009
7561634 Continuous phase modulation system and method with added orthogonal signals Jul. 14, 2009
7545232 Polar modulator arrangement and polar modulation method Jun. 9, 2009
7539257 Continuous phase modulation system and method with added phase pulse May. 26, 2009
7518461 Method of configuring a polar-based modulator using a parameter look-up table Apr. 14, 2009
7443261 Phase modulating apparatus, communication device, mobile wireless unit, and phase modulating method Oct. 28, 2008
7409012 Modulator and signaling method Aug. 5, 2008
7400211 High speed passband phase modulation apparatus and method of the same Jul. 15, 2008
7378918 Two-point modulation type phase modulation apparatus, polar modulation transmission apparatus, wireless transmission apparatus and wireless communication apparatus May. 27, 2008
7289005 Polar modulator and a method for modulation of a signal Oct. 30, 2007
7280003 Modulation device and transmitter comprising such a device Oct. 9, 2007
7269232 Device for producing a phase and amplitude modulated radio frequency signal Sep. 11, 2007
7248639 Method for reducing the out-of-band emission in AM transmitters for digital transmission Jul. 24, 2007
7127129 Method and apparatus for phase shifting an optical beam in an optical device Oct. 24, 2006
7023292 Polar modulation using amplitude modulated quadrature signals Apr. 4, 2006
7009447 Outphasing modulator Mar. 7, 2006
6891445 Phase modulator May. 10, 2005

1 2 3










 
 
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