Patents
Patents for H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662)
08/2004
08/18/2004EP1446886A1 Method and device for phase and frequency comparison
08/17/2004US6778026 High-speed phase frequency detection module
08/10/2004US6774679 Semiconductor integrated circuit
08/10/2004CA2201695C Phase detector for high speed clock recovery from random binary signals
08/05/2004WO2004066074A2 Clock and data recovery phase-locked loop and high-speed phase detector architecture
08/05/2004US20040153681 Phase detector for extended linear response and high-speed data regeneration
08/03/2004US6771096 Circuit, system, and method for using hysteresis to avoid dead zone or non-linear conditions in a phase frequency detector
07/2004
07/29/2004US20040146131 Phase detector
07/29/2004US20040145390 Phase frequency detector with a narrow control pulse
07/28/2004CN1159849C Digital phase detecting method and its device
07/27/2004US6768347 Precise phase detector
07/22/2004US20040141577 Clock and data recovery phase-locked loop
07/21/2004CN1158752C Phase frequency detector having instantaneous phase difference output
07/15/2004US20040136483 Clock recovery method by phase selection
07/13/2004US6763294 System and method for validating quadrature signals
07/13/2004US6762626 Phase detector
07/08/2004DE10227839B4 Phasendifferenzerfassungsschaltung Phase difference detecting circuit
07/01/2004US20040125903 Digital phase detection with jitter filter
06/2004
06/29/2004US6756822 Phase detector employing asynchronous level-mode sequential circuitry
06/24/2004WO2004054165A1 Phase erroneous-synchronization detecting circuit
06/24/2004US20040119506 Phase detection device, dial type detection device, and phase detection method
06/22/2004US6753704 Sampling phase detector
06/17/2004US20040114702 Bang-bang phase detector for full-rate and half-rate schemes clock and data recovery and method therefor
06/16/2004EP1016218B1 Phase detector for high speed clock recovery from random binary signals
06/15/2004US6750725 Apparatus for detecting phase error by using zero crossing characteristics of input signal, and phase locked loop circuit using the same
06/01/2004US6744838 PLL lock detector
05/2004
05/27/2004WO2004045076A1 Phase comparator
05/27/2004WO2004045064A1 Differential time sampling circuit
05/27/2004US20040100308 Method and circuitry for phase align detection in multi-clock domain
05/27/2004DE10253085A1 Phase comparator for PLL switching network monitors phase of input signals by sensing flanks of waveform and includes additional switching network comparing other input signal flanks
05/25/2004US6741102 Phase frequency detector
05/21/2004WO2004043062A1 Read-out circuit for infrared detectors.
05/21/2004WO2004042927A1 Pll using unbalanced quadricorrelator
05/19/2004EP1420512A1 Phase detector with delay elements for improved data regeneration
05/19/2004EP1420511A1 Phase detector for extended linear response and highspeed data regeneration
05/13/2004US20040091064 Phase detector with delay elements for improved data regeneration
05/13/2004US20040090277 Frequency locked loop
05/12/2004CN1495589A Phase position detector, dial-type detector and phase position detecting method
05/11/2004US6735265 Comparator
05/11/2004US6734739 Fractional-frequency-modulation PLL synthesizer that suppresses spurious signals
05/11/2004CA2290862C A frequency/phase comparison circuit with gated reference and signal inputs
05/06/2004US20040085089 One-level zero-current-state exclusive or (XOR) gate
04/2004
04/15/2004US20040070432 High speed digital phase/frequency comparator for phase locked loops
04/15/2004DE10237120B3 Phasendetektor Phase detector
04/01/2004US20040061539 Linear half-rate phase detector for clock recovery and method therefor
03/2004
03/16/2004US6707319 Frequency comparator with malfunction reduced and phase-locked state detecting circuit using the same
03/11/2004WO2004021574A1 Phase locked loop
03/11/2004WO2003061111A3 Phase freqency detector
03/02/2004US6700944 Phase detector for clock and data recovery
03/02/2004US6700414 Phase comparator accurately comparing phases of two clock signals and clock generation circuit employing the same
02/2004
02/19/2004WO2003032494A3 Frequency locked loop with digital oversampling feedback control and filter
02/19/2004US20040032285 Phase detector
02/12/2004WO2004013956A1 Phase detector with selection of differences between input signals
02/12/2004US20040028165 Digital phase detector with extended resolution
02/10/2004US6690209 Phase detecting with parallel discharge paths
02/04/2004CN1472886A Multiplexer input circuit with DLL phase detector
01/2004
01/27/2004US6683930 Digital phase/frequency detector, and clock generator and data recovery PLL containing the same
01/27/2004US6683478 Apparatus for ensuring correct start-up and phase locking of delay locked loop
01/21/2004CN1469550A 半导体集成电路 The semiconductor integrated circuit
01/20/2004US6680992 Clock identification and reproduction circuit
01/15/2004US20040008733 Multiplexer input circuit with DLL phase detector
01/14/2004EP1381153A1 Multiplexer input circuit with DLL phase detector
01/06/2004US6674309 Differential time sampling circuit
01/02/2004EP1374404A1 Phase locked loop with a linear phase detector
12/2003
12/24/2003CN1463491A 半导体集成电路 The semiconductor integrated circuit
12/17/2003CN1462114A Phase-comparision circuit and clock data restoring circuit and transceiver circuit
12/09/2003US6661862 Digital delay line-based phase detector
12/04/2003US20030223527 Phase comparator, clock data recovery circuit and transceiver circuit
12/04/2003US20030222723 Fractional-frequency-modulation PLL synthesizer that suppresses spurious signals
12/04/2003US20030222720 Semiconductor integrated circuit
12/02/2003US6657466 System and method for generating interleaved multi-phase outputs from a nested pair of phase locked loops
11/2003
11/27/2003US20030219090 Phase comparator having a flip-flop circuit and a logic circuit
11/26/2003EP1365502A2 Phase detector for quadrature signals, and method
11/18/2003US6650146 Digital frequency comparator
11/13/2003US20030210077 Precise phase detector
11/11/2003US6646478 Method and apparatus for increasing capture range and jitter tolerance in phase detection circuits
11/11/2003US6646477 Phase frequency detector with increased phase error gain
11/06/2003US20030208310 System and method for validating quadrature signals
11/04/2003US6642747 Frequency detector for a phase locked loop system
11/04/2003US6642746 Phase detector with minimized phase detection error
10/2003
10/28/2003US6640311 Redundant oscillator and method for generating a regulated signal
10/21/2003US6636122 Analog frequency locked loop with digital oversampling feedback control and filter
10/21/2003US6636079 Phase comparing circuit, PLL circuit, televisions broadcasting receiver, and method of comparing phase
10/14/2003US6633184 Phase comparator and synchronizing signal extracting device
10/02/2003WO2003049277A3 Non-linear phase detector
10/02/2003US20030185329 Phase detector and method for a shortening phase-error-correction pulse
10/02/2003US20030184400 Phase comparison method, phase comparison circuit, and phase locked loop (PLL) type circuit
10/02/2003US20030184346 Method and apparatus for increasing capture range and jitter tolerance in phase detection circuits
10/02/2003US20030184278 Device and method for measuring jitter in phase locked loops
10/01/2003EP1349266A1 Phase comparison method, phase comparison circuit, and phase locked loop (PLL) type circuit
10/01/2003EP1262016B1 Fractional-n phase locked loop
09/2003
09/25/2003US20030179014 Frequency comparator with malfunction reduced and phase-locked state detecting circuit using the same
09/18/2003US20030174003 Semiconductor integrated circuit
09/16/2003US6622255 Digital clock skew detection and phase alignment
09/16/2003US6621307 Method and circuit for determining frequency and time variations between electronic signals
09/11/2003US20030169836 Phase comparator and clock recovery circuit
09/09/2003US6617883 Dual differential input comparators with integrated phase detector
09/02/2003US6614314 Non-linear phase detector
08/2003
08/27/2003EP1228632B1 Phase detector and lock detector for a pll
08/21/2003US20030155981 Phase locked loop (PLL)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17