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9030236 Phase detector  
A phase detection system for providing a phase signal indicative of a phase difference between first and second input signals, with the system including a pair of amplification channels for...
8994323 Charging circuit and control method therefor  
A charging circuit includes a power path control unit which switches a first switch connected between a system connection terminal and a battery connection terminal on while not charging, and...
8975924 Phase frequency detector circuit  
A phase-frequency detector (PFD) circuit is disclosed. The PFD circuit includes a PFD portion adapted to detect frequency and phase difference of two input signals and to generate control signals...
8957705 Phase frequency detector  
Described is an apparatus comprising: a first phase frequency detector (PFD) to determine a coarse phase difference between a first clock signal and a second clock signal, the first PFD to...
8917113 Phase detection device and phase detection method  
A phase detection device includes a clock divider configured to divide a clock signal and generate a plurality of divided clock signals, a recoverer configured to generate a recovered clock signal...
8907702 System and method for a phase detector  
In accordance with an embodiment, a phase detector circuit includes a plurality of cascaded RF stages that each has a first RF amplifier and a second RF amplifier. The first RF amplifiers are...
8866511 Matrix phase detector  
A method and a system are provided for clock phase detection. A first set of delayed versions of a first clock signal is generated and a second set of delayed versions of a second clock signal is...
8860467 Biased bang-bang phase detector for clock and data recovery  
An apparatus includes a plurality of phase detector circuits and a summing circuit. Each of the plurality of phase detector circuits may be configured to generate a phase up signal and a phase...
8836373 Phase difference quantization circuit, delay value control circuit thereof, and delay circuit  
A delay value control circuit of a phase difference quantization circuit, wherein the phase difference quantization circuit has first to Nth (N is an integer equal to or greater than 2) delay...
8823436 Phase difference quantization circuit, delay value control circuit thereof, and delay circuit  
A delay value control circuit of a phase difference quantization circuit, wherein the phase difference quantization circuit has first to Nth (N is an integer equal to or greater than 2) delay...
8786315 Phase frequency detector  
The present invention relates to a phase frequency detector (PFD) (100) for use as one of the blocks in a phase-locked loop. The PFD of the present invention has zero dead zone, has a simpler...
8749271 Methods for synchronizing high-speed signals in a digital phase detector  
Methods of synchronizing signals are provided. Specifically, a detector is provided in the digital phase detector to detect certain failure conditions that may result from clock skew and duty...
8669786 Clock phase shift detector  
A clock phase shift detector circuit may include a phase detector that receives a first and a second clock signal, whereby the phase detector generates a phase signal based on a phase difference...
8659360 Charge-to-digital timer  
The charge-to-digital timer apparatus and method disclosed herein estimates the elapsed time between two signals, e.g., a start signal and a stop signal. To that end, at least a capacitive load is...
8643402 Phase frequency detector circuit  
A phase frequency detector circuit includes an edge detector circuit, a plurality of phase frequency detector sub-circuits, and a decision circuit. The edge detector circuit is configured to...
8638124 Clock phase shift detector  
A clock phase shift detector circuit may include a phase detector for generating a phase signal based on a phase difference between first and second clock signals. A current mirror having a first,...
8624629 Phase difference quantization circuit  
A delay value control circuit of a phase difference quantization circuit, wherein the phase difference quantization circuit has first to Nth (N is an integer equal to or greater than 2) delay...
8624630 Clock and data recovery system, phase adjusting method, and phasedetector  
Disclosed is a phase discriminator, including: a first XOR gate connected to a trigger and a delay unit, a second XOR gate connected to the trigger and a latch, wherein the first XOR gate is a...
8618886 Method of establishing an oscillator clock signal  
A hybrid numeric-analog clock synchronizer, for establishing a clock or carrier locked to a timing reference. The clock may include a framing component. The reference may have a low update rate....
8604840 Frequency synthesizer noise reduction  
A method for reducing noise in a frequency synthesizer includes selecting a design variable k, calibrating a feedback time delay (Td), such that Td=kTVCO, where TVCO is the period of the...
8594583 Apparatus and method for radio frequency reception with temperature and frequency independent gain  
Apparatus and methods are disclosed, such as those involving an RF receiver. One such apparatus includes a front end having an input and an output. The front end forms part of an RF signal receive...
8575966 Method of operating phase-lock assistant circuitry  
A method of operating a charge pump of a phase-lock assistant circuit includes determining a first relative timing relationship of a phase of a data signal to a phase of a first phase clock. A...
8570071 Phase adjustment apparatus and clock generator thereof and method for phase adjustment  
A phase adjustment apparatus for providing a clock signal to a core circuit is provided. The core circuit is powered by a core voltage. The phase adjustment apparatus includes two clock receiving...
8487659 Comparator with adaptive timing  
An adaptive delay device that provides a delay to a signal based on circuit conditions such as temperature, supply voltage values and/or fabrication processes. The adaptive delay device may...
8466727 Protection against fault injections of an electronic circuit with flip-flops  
A method for detecting a disturbance of the state of a synchronous flip-flop of master-slave type including two bistable circuits in series, in which the bistable circuits are triggered by two...
8466713 Phase detection method and phase detector  
Phase detection techniques in which an input signal is sampled to obtain several samples at different points in time with respect to a clock, said different points in time comprising an earliest...
8432191 Phase-locked loop having high-gain mode phase-frequency detector  
A phase-locked loop (PLL) includes PLL loop circuitry, a frequency divider, and a phase-frequency detector (PFD) that can produce both high-gain output signals to operate the PLL in a high-gain...
8415983 Digital phase comparator  
A digital phase comparator is provided in which first phase difference signals and second phase difference signals are used as digital phase difference information. The first phase difference...
8400196 Phase correction circuit for multi-phase signals with skew detection  
A phase correction circuit includes a skew detection unit configured to generate first skew detection signals and second skew detection signals by comparing multi-phase signals with one another, a...
8373444 Time-domain voltage comparator for analog-to-digital converter  
A time-domain voltage comparator for an analog-to-digital converter includes a first voltage-to-time converter configured to be connected in series with at least one time delay cell and convert an...
8368351 Transmission line directional awareness for a charging station  
An apparatus and method for coupling a charging station to a power line segment that is terminated at a first end by a charging terminal are disclosed. The apparatus includes multiple taps coupled...
8362817 Phase comparator and clock data recovery circuit  
The present disclosure provides a phase comparator including, a first latch, a second latch, a first detection circuit, a second detection circuit, and a charge-pump circuit having the function of...
8354867 Phase-locked loop circuit and an associated method  
The present invention relates to a PLL circuit and an associated method that allows the PLL circuit to operate at a higher operating frequency with a wider bandwidth and a better out-band noise...
8354862 Phase-lock assistant circuitry  
A circuit including a first circuit configured to receive an input signal and first, third and fifth phase clocks of a clock, and generate a first early signal indicating the clock is earlier than...
8350595 Semiconductor integrated circuit and control method for clock signal synchronization  
There is a need to ensure operation performance of a circuit region under DVFS control at low costs and highly precisely while a power-supply voltage change is made to the region. A first circuit...
8334716 Digital phase detection circuit and method  
A digital phase detector circuit and corresponding monitor and control logic is presented. The digital phase detector has two storage elements, where the data input of the first storage element...
8289087 Method for detecting and correcting phase shift between I data clock in Q data clock in quadrature modulator or quadrature demodulator  
A computer-implemented method, device, and program product for detecting a phase shift between an I data clock and a Q data clock in processing an I data signal or a Q data signal used in...
8217683 Phase-detector for detecting phase difference of [PI]2N  
A basic symmetric Π/2 phase-detector receives four control signals that control a differential current at the detector's output. Each respective control signal is a linear combination of a...
8179162 Phase-lock assistant circuitry  
Some embodiments regard a circuit comprising: a first circuit configured to lock a frequency of an output clock to a frequency of a reference clock; a second circuit configured to align an input...
8179163 Method and apparatus for charge pump linearization in fractional-N PLLs  
Efficient techniques improve the linearity of a charge pump in fractional-N PLLs. A feedback clock pulse several VCO clock periods wide is formed and supplied to a phase frequency detector (PFD)....
8144249 Multi-slicing horizontal synchronization signal generating apparatus and method  
A multi-slicing horizontal synchronization signal generating apparatus and method is provided. The apparatus includes a slicer, a numerically controlled oscillator (NCO), a first phase detector, a...
8138798 Symmetric phase detector  
In one embodiment, a circuit includes a first circuit input for receiving a first input signal having a first phase; a second circuit input for receiving a second input signal having a second...
8138799 Inter-phase skew detection circuit for multi-phase clock, inter-phase skew adjustment circuit, and semiconductor integrated circuit  
An inter-phase skew detection circuit includes a frequency division circuit that frequency-divides N-phase clocks to be measured at predetermined timings so as to generate N+2 frequency-divided...
8138800 Phase detecting circuit and PLL circuit  
A phase detecting circuit includes a latch circuit that switches, based on an OR signal and an AND signal of two clock signals to be subjected to phase comparison, one of outputs used for...
8085033 Phase detector system  
A phase detection system (100) comprises an input terminal (101), first and second peak detectors (103, 113), an averaging unit (107), an offset unit (122), and a comparator (126). Input terminal...
8081013 Digital phase and frequency detector  
A method for digital phase detection, comprises the steps of: providing a reference clock; receiving a feedback clock; determining a timing difference between the reference clock and the feedback...
8076979 Lock detection circuit for phase locked loop  
A lock detector circuit for detecting a lock condition between a reference signal and a feedback signal includes a first counter for outputting a first counter value indicative of a number of...
8058915 Digital phase-locked loop and digital phase-frequency detector thereof  
A digital phase-locked loop and a digital phase-frequency detector thereof are provided. The digital PFD includes a divisor switch unit, a low-resolution phase-error detecting unit, an...
8013636 Synchronous phase detection circuit  
A phase detection circuit determines phase difference between a periodic signal and a reference signal of substantially equal frequency. The circuit includes: a source input receiving the periodic...
8008946 Semiconductor integrated circuit  
A first counter detects a rising edge of a clock signal, and generates a first signal having a multiplied cycle of the clock signal. A second counter detects a falling edge of the clock signal,...