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Class Information
Number: 327/234
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Phase shift by less than period of input > Correction to specific phase shift > Dependent on variable controlled phase shifts
Description: Subject matter wherein the desired output phase shift is obtained by applying changeable phase shifts to the input signal.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8692600 Multi-protocol driver slew rate calibration system for calibration slew rate control signal values Apr. 8, 2014
8593195 High performance memory interface circuit architecture Nov. 26, 2013
8570071 Phase adjustment apparatus and clock generator thereof and method for phase adjustment Oct. 29, 2013
8334716 Digital phase detection circuit and method Dec. 18, 2012
8183904 Control system for a phase generator and corresponding control method May. 22, 2012
8179173 Digitally calibrated high speed clock distribution May. 15, 2012
8179179 Semiconductor device May. 15, 2012
8169248 Signal processing circuit and signal processing method May. 1, 2012
8169247 Multiphase clock generation circuit May. 1, 2012
8164373 Drive strength control of phase rotators Apr. 24, 2012
8125260 Phase mixer with adjustable load-to-drive ratio Feb. 28, 2012
8063686 Phase interpolator circuit with two phase capacitor charging Nov. 22, 2011
8013653 Method, system and device for eliminating intra-pair skew Sep. 6, 2011
7928788 Double-balanced sinusoidal mixing phase interpolator circuit and method Apr. 19, 2011
7915942 Apparatus and method for calibrating a variable phase shifter Mar. 29, 2011
7884659 Phase mixer and delay locked loop including the same Feb. 8, 2011
7848453 Independent LO IQ tuning for improved image rejection Dec. 7, 2010
7825741 Frequency multipliers using multi-phase oscillation Nov. 2, 2010
7675342 On-chip electrically alterable resistor Mar. 9, 2010
7656987 Phase generator for introducing phase shift in a signal Feb. 2, 2010
7653167 Phase deglitch circuit for phase interpolator for high-speed serial I/O applications Jan. 26, 2010
7589576 Phase shifter and phase shift method Sep. 15, 2009
7573311 Programmable high-resolution phase delay Aug. 11, 2009
7564283 Automatic tap delay calibration for precise digital phase shift Jul. 21, 2009
7551013 Phase interpolation circuit and method of generating phase interpolation signal Jun. 23, 2009
7453301 Method of and circuit for phase shifting a clock signal Nov. 18, 2008
7425856 Phase interpolator with output amplitude correction Sep. 16, 2008
7400211 High speed passband phase modulation apparatus and method of the same Jul. 15, 2008
7378895 On-chip electrically alterable resistor May. 27, 2008
7298195 Methods and apparatus for improved phase switching and linearity in an analog phase interpolator Nov. 20, 2007
7183828 Shift clock generator, timing generator and test apparatus Feb. 27, 2007
7173466 Timing signal generating circuit having simple configuration with low supply voltage and generating timing signals with high accuracy Feb. 6, 2007
7049872 Use of analog-valued floating-gate transistors to match the electrical characteristics of interleaved and pipelined circuits May. 23, 2006
6982578 Digital delay-locked loop circuits with hierarchical delay adjustment Jan. 3, 2006
6894550 Phase shifter control voltage distribution in a phased array utilizing voltage-proportional phase shift devices May. 17, 2005
6664886 Fuse with fuse link coating Dec. 16, 2003
6665353 Quadrant switching method for phase shifter Dec. 16, 2003
6593821 Frequency controlled oscillator Jul. 15, 2003
6586983 Signal phase adjustment circuit to set optimum phase Jul. 1, 2003
6570424 Signal phase adjustment circuit to set optimum phase May. 27, 2003
6441664 Signal phase adjustment circuit to set optimum phase Aug. 27, 2002
6437617 Method of controlling a clock signal and circuit for controlling a clock signal Aug. 20, 2002
6393083 Apparatus and method for hardware implementation of a digital phase shifter May. 21, 2002
6380782 Integrated circuit Apr. 30, 2002
6356131 90-degree phase shifter Mar. 12, 2002
5939916 Phase shifter suitable for clock recovery systems Aug. 17, 1999
5939917 Voltage-controlled phase shifter Aug. 17, 1999
5926052 Variable phase shifter and method Jul. 20, 1999
5789958 Apparatus for controlling timing of signal pulses Aug. 4, 1998
5764092 Delay clock generator for generating a plurality of delay clocks delaying the basic clock Jun. 9, 1998

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