Class 327/231 - Phase shift by less than period of input

Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter wherein a fraction of the period of an input
No. of patents: 364
Last issue date: 05/22/2012

«First «Previous1 2 3 4 5 6 7 8 9 10 Next»Last»

Number	Title	Issue Date
8183903	Signal interpolation methods and circuits An interpolation circuit for comparing an input voltage signal with an interpolated reference signal derived from a first reference voltage signal and a second reference voltage signal may include a transconductive circuit configured to generate a first differential...	05/22/2012
8179179	Semiconductor device A semiconductor device includes a reset signal generator configured to change the number of activated signals among a plurality of reset signals according to a frequency of an external clock, a plurality of mixing control signal generators configured to generate a p...	05/15/2012
8169247	Multiphase clock generation circuit The multiphase clock generation circuit includes a variable slew rate circuit and a phase interpolation circuit. In the variable slew rate circuit, the slew rate varies according to a first control signal. Two reference clocks having a phase difference of 90° from ...	05/01/2012
8164373	Drive strength control of phase rotators A phase rotator includes a phase selector stage operative to receive a clock signal and output a first phase and a second phase of the clock signal, a slew rate control stage including a first pass gate circuit operative to control a slew rate of the first phase of ...	04/24/2012
8149038	Techniques for phase adjustment A dynamic phase alignment circuit includes a phase generator circuit having delay-locked loop circuits that generate periodic output signals. Each of the delay-locked loop circuits generates one of the periodic output signals in response to at least two periodic inp...	04/03/2012
8125260	Phase mixer with adjustable load-to-drive ratio Phase mixers, clock signal generators, memories and methods for providing an output signal having a phase relative to the phase difference of input clock signals are disclosed. One such phase mixer includes a phase mixer circuit having inputs and an output. The phas...	02/28/2012
8081023	Phase shift circuit with lower intrinsic delay A phase shift circuit that includes two, rather than four, delay chains and corresponding selectors is described. This provides a significant area savings and reduces the intrinsic delay of the phase shift circuit, which is particularly beneficial for embodiments in...	12/20/2011
8081024	CMOS phase interpolation system A CMOS phase interpolation system comprises a capacitive integration unit coupled to a charge node and a plurality of selectively enabled current source units operably coupled to the charge node. The current source units each include: a charging segment; a dischargi...	12/20/2011
8072253	Clock adjusting circuit and semiconductor integrated circuit device Disclosed is a clock adjusting circuit comprising a phase shifter that receives a clock signal and variably shifts, based on a control signal, respective timing phases of a rising edge and a falling edge of the clock signal; and a control circuit that supplies the c...	12/06/2011
8063686	Phase interpolator circuit with two phase capacitor charging In one embodiment of the invention, a method is disclosed to generate a clock output signal with selected phase. The method includes selecting a phase delay for the clock output signal; charging a capacitor with a first weighted current during a first phase input cl...	11/22/2011
8040172	Logic level converter A logic level converter includes two first electronic switches coupled in a bi-stable flip-flop arrangement having at least one output line, and a forcing circuitry including two second electronic switches to force switching of the first electronic switches in the f...	10/18/2011
8035437	Phase interpolator A phase interpolator receiving a first signal having an oscillation frequency Fin and providing a second signal having said oscillation frequency and having a phase shift Δφ with respect to the first signal which depends on a third signal. The interpolator include...	10/11/2011
8035436	Passive capacitively injected phase interpolator A phase-interpolator circuit is described. In the phase-interpolator circuit, an output signal, having a fundamental frequency and a phase, is generated based on a weighted summation of a first reference signal and a second reference signal, where the first referenc...	10/11/2011
8018265	Differential signal generation circuit A differential signal generation circuit includes: an inverter array configured to sequentially invert an input signal to generate a plurality of delayed signals; and a phase mixer configured to mix a phase of a first delayed signal and a phase of a second delayed s...	09/13/2011
8013651	Signal converter for wireless communication and receiving device using the same The present invention relates to a signal converting device and receiving device in a wireless communication system. The receiving device of the wireless communication system includes a differential signal converter for receiving a single ended radio frequency signa...	09/06/2011
8013652	Power amplification device and communication device In a case where two constant envelope signals corresponding to an input signal are generated through analog signal processing, variation in detection sensitivities of amplitudes of those signals is suppressed. At least one of a mixer (24) for detecting an amp...	09/06/2011
8013650	Phase adjustment circuit A phase adjustment circuit includes first to nth two-phase adjustment circuits. Each two-phase adjustment circuit includes a first logic circuit for performing logical sum of two input signals, a second logic circuit for performing logical product of the two input s...	09/06/2011
8004335	Phase interpolator system and associated methods A phase interpolator system is disclosed that may include a clock to provide a clock signal, and a control section in communication with the clock to regulate the strength of the clock signal. The system may also include a generator circuit to produce an alternate c...	08/23/2011
7994837	Techniques for phase interpolation A phase interpolator circuit can include first and second transistors coupled to form a differential pair, first and second load circuits, a first switch circuit coupled between the first transistor and the first load circuit, a second switch circuit coupled between...	08/09/2011
7977992	Precision phase generator and method for phase generation A phase generator includes a delay element configured to receive an input signal and delay the input signal by a predetermined amount to develop a delayed version of the input signal, a logic element configured to receive the input signal and the delayed version of ...	07/12/2011
7961025	Current-mode phase rotator with partial phase switching In one illustrative embodiment, an apparatus for a current-mode phase rotator with partial input phase switching comprises a mixer, wherein the mixer is a four quadrant current-mode mixer comprised of four interpolation buffers, wherein each interpolation buffer rec...	06/14/2011
7952408	Embedded phase noise measurement system Phase noise detection systems for a device under test (DUT) are provided that can be embedded within a chip. According to one embodiment, the embedded phase noise detection system can include an active delay line cell, a phase shifter, and a phase detector. The acti...	05/31/2011
7928789	Methods and apparatus for improved phase switching and linearity in an analog phase interpolator Methods and apparatus are provided for improving phase switching and linearity in an analog phase interpolator. A phase interpolator in accordance with the present invention comprises (i) a plurality of tail current sources that are activated for substantially all t...	04/19/2011
7928788	Double-balanced sinusoidal mixing phase interpolator circuit and method A double-balanced sinusoidal mixing phase interpolator circuit comprises: a double-balanced gain stage having a first input for receiving a first phasor clock, a second input for receiving a second phasor clock, and a phase interpolator (PI) output, wherein the doub...	04/19/2011
7915941	Phase interpolator circuits and methods A phase interpolator circuit includes first and second low pass filter circuits and a multiplier circuit. The first low pass filter circuit increases a common mode voltage of a clock signal to generate a first varying signal. The second low pass filter circuit incre...	03/29/2011
7902896	Phase mixer with adjustable load-to-drive ratio Phase mixers, clock signal generators, memories and methods for providing an output signal having a phase relative to the phase difference of input clock signals are disclosed. One such phase mixer includes a phase mixer circuit having inputs and an output. The phas...	03/08/2011
7898310	Phase doubler A phase doubler driver circuit includes first control logic generates a first output PWM drive signal and a second output PWM drive signal responsive to an input PWM drive signal. In a first mode of operation, alternating pulses of the input PWM drive are output as ...	03/01/2011
7898311	Phase shifting circuit which produces phase shift signal regardless of frequency of input signal A waveform generating circuit includes a constant current circuit that supplies a constant current through a power source; a current mirror circuit that flows an output current that is n times an input current; and a switching circuit that switches a flowing directi...	03/01/2011
7893745	Wideband programmable phase shifting circuit The wideband programmable phase shifting circuitry includes a charge pump, a comparator, and a voltage reference generator block. An input signal controls the charge pump which charges and discharges a capacitor connected to an output of the charge pump. The compara...	02/22/2011
7884659	Phase mixer and delay locked loop including the same A phase mixer includes a phase mixing unit configured to mix a phase of a first input signal and a phase of a second input signal in response to a phase control signal and output a phase mixed signal whose phase is varied by one or more units of a unit phase value, ...	02/08/2011
7876143	Phase shifter A phase shifter includes a phase shifting unit for operating at a timing at which a clock signal becomes equal to or greater than a threshold value and outputting periodic signals having phases shifted by 90 degrees from each other; a DC voltage setting unit for set...	01/25/2011
7868678	Configurable differential lines Embodiments related to configurable differential lines are disclosed herein. ...	01/11/2011
7839196	Multi-phase clock generation circuit having a low skew imprecision A multi-phase clock generation circuit having a low skew imprecision is presented. The circuit includes a phase clock generation block and a phase correction block. The phase clock generation block is configured to generate a plurality of phase clocks having phases ...	11/23/2010
7821316	Multiphase clock generator with enhanced phase control A multi-phase clock generator circuit receives an input clock signal and produces multiple output clock signal, each from a respective delay stage of a multi-stage voltage-controlled delay line (VCDL). The rising edges of the multiple output clock signals produced b...	10/26/2010
7791390	Phase shifter A phase shifter according to an embodiment of the present invention includes: an AC component amplifying unit; and a dividing circuit. The AC component amplifying unit has positive gain slope characteristics and deforms a waveform of an input differential clock sign...	09/07/2010
7772907	Linear digital phase interpolator and semi-digital delay locked loop (DLL) Provided are a digital phase interpolator, which performs linear phase interpolation irrelevantly to input order of two input signals, and a semi-digital delay locked loop (DLL), which includes and controls the same. The phase interpolator includes: a first clocked ...	08/10/2010
7642831	Phase shift circuit with lower intrinsic delay A phase shift circuit that includes two, rather than four, delay chains and corresponding selectors is described. This provides a significant area savings and reduces the intrinsic delay of the phase shift circuit, which is particularly beneficial for embodiments in...	01/05/2010
7609102	Pattern-dependent phase detector for clock recovery A phase detector apparatus and method used for clock recovery from a data signal is provided. The phase detector provides phase correction signals to a clock signal generator, where the phase correction signals are only generated if a predetermined data sample patte...	10/27/2009
7589576	Phase shifter and phase shift method The present invention provides a phase shifter comprising a first multiplier unit that outputs a first output signal obtained by multiplying an input signal input thereto by a multiplication value calculated based upon a first digital control signal also input there...	09/15/2009
7573311	Programmable high-resolution phase delay A programmable delay lock loop system provides a delayed output signal having a programmed delay from an input signal. A phase detector provides a phase delay signal indicative of an actual phase difference between the input signal and the delayed output signal. An ...	08/11/2009

«First «Previous1 2 3 4 5 6 7 8 9 10 Next»Last»

PatentStorm

Bizarre Patents

PatentStorm News

Class 327/231 - Phase shift by less than period of input