| Patents for H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662) |
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| 06/18/2002 | US6407642 Frequency detector and phase-locked loop circuit including the detector |
| 06/13/2002 | US20020070777 Voltage to current converter |
| 06/13/2002 | US20020070761 Phase Independent Frequency Comparator |
| 06/11/2002 | US6404240 Circuit and method of a three state phase frequency lock detector |
| 06/06/2002 | US20020067771 Digital phase discrimination based on frequency sampling |
| 06/05/2002 | EP1211811A1 Fast frequency comparing circuit |
| 05/29/2002 | CN1351415A High precision phase demodulator |
| 05/21/2002 | US6392494 Frequency comparator and clock regenerating device using the same |
| 05/16/2002 | US20020057479 PLL circuit and optical communication reception apparatus |
| 05/16/2002 | US20020057113 Phase detector |
| 05/15/2002 | EP1205028A2 Loading pump |
| 05/15/2002 | CN1084995C Detectors |
| 05/09/2002 | US20020053950 PLL circuit and optical communication reception apparatus |
| 05/02/2002 | US20020051510 Phase/frequency comparator |
| 05/02/2002 | US20020051507 Phase control circuit and phase control method |
| 05/02/2002 | EP1202067A2 Phase detector |
| 04/30/2002 | US6381291 Phase detector and method |
| 04/24/2002 | EP1199806A2 PLL circuit and optical communication reception apparatus |
| 04/24/2002 | EP1199805A1 PLL circuit and optical communication reception apparatus |
| 04/24/2002 | EP1199804A2 Phase/frequency comparator |
| 04/23/2002 | US6377081 Phase detection circuit |
| 04/18/2002 | WO2002032041A1 Phase comparator circuit |
| 04/18/2002 | WO2001093418A3 Linear dead-band-free digital phase detection |
| 04/16/2002 | US6373293 Self-synchronized, multi-sample, quadrature phase detector |
| 04/04/2002 | WO2002027918A1 Phase detector |
| 04/04/2002 | US20020039397 Phase comparator circuit |
| 04/04/2002 | US20020039020 Sample and hold phase detector having low spurious performance and method |
| 04/02/2002 | US6366135 Data frequency detector |
| 03/21/2002 | WO2002023715A2 Digital clock skew detection and phase alignment |
| 03/21/2002 | US20020034274 Phase detector and phase locked loop circuit |
| 03/14/2002 | WO2001091297A3 High resolution phase frequency detectors |
| 03/14/2002 | US20020031193 Method and apparatus for generating a phase dependent control signal |
| 03/07/2002 | WO2002019527A1 Direction sensitive and phase-inversion free phase detectors |
| 03/07/2002 | DE10038880A1 Phase detector for phase control loop especially for use in a mobile phone base station in which the phase relationship of the digital input signals can be determined independently of the start condition of the phase detector |
| 03/06/2002 | EP1184972A2 Phase Detector |
| 02/26/2002 | US6351154 Phase detector |
| 02/26/2002 | US6351153 Phase detector with high precision |
| 02/21/2002 | US20020021470 Linear half-rate phase detector and clock and data recovery circuit |
| 02/21/2002 | DE10039421A1 Phase detector providing phase difference between binary input signals uses 2 Exclusive-OR elements receiving both input signals with their output signals subtracted to provide regulating voltage |
| 02/14/2002 | WO2001033828A3 Slip-detecting phase detector and method for improving phase-lock loop lock time |
| 02/12/2002 | US6347128 Self-aligned clock recovery circuit with proportional phase detector |
| 02/12/2002 | US6346861 Phase locked loop with high-speed locking characteristic |
| 02/07/2002 | WO2001069786A3 A phase detector |
| 01/15/2002 | US6339350 Phase difference—current conversion circuit |
| 01/03/2002 | WO2001065681A3 Fractional-phase locked loop |
| 01/03/2002 | US20020000836 Phase detector |
| 12/25/2001 | CA2279443C Improved phase detector |
| 12/20/2001 | US20010052822 Phase Locked loop with high-speed locking characteristic |
| 12/11/2001 | US6329847 Radio device including a frequency synthesizer and phase discriminator for such a device |
| 12/06/2001 | WO2001093418A2 Linear dead-band-free digital phase detection |
| 11/29/2001 | WO2001091297A2 High resolution phase frequency detectors |
| 11/29/2001 | US20010045868 Frequency comparator and clock regenerating device using the same |
| 11/28/2001 | EP1158680A1 Phase comparator and clock recovery circuit |
| 11/28/2001 | CN1324534A Phase difference magnifier |
| 11/27/2001 | US6323692 Transconductance compensation circuit having a phase detector circuit with cycle slipping recovery operation and method |
| 11/22/2001 | US20010043086 Phase comparator and synchronizing signal extracting device |
| 11/14/2001 | CN1322402A PLL circuit and radio communication terminal using PLL |
| 11/06/2001 | US6314151 Phase comparator operable at half frequency of input signal |
| 11/06/2001 | US6314150 Lock detector circuit for a phase-locked loop |
| 11/06/2001 | US6313621 Method and arrangement for determining the phase difference between two timing signals |
| 10/23/2001 | US6307906 Clock and data recovery scheme for multi-channel data communications receivers |
| 10/23/2001 | CA2031145C Frequency detector based on a digital phase lock loop |
| 10/09/2001 | US6301318 Pipelined phase detector for clock recovery |
| 10/09/2001 | US6300803 Phase-comparison circuit |
| 09/20/2001 | WO2001069786A2 A phase detector |
| 09/07/2001 | WO2001065681A2 Fractional-phase locked loop |
| 09/04/2001 | US6285219 Dual mode phase and frequency detector |
| 08/30/2001 | WO2001013517A3 Loading pump |
| 08/28/2001 | US6281712 Phase detector with frequency steering |
| 08/23/2001 | US20010016017 Quadrature modulator |
| 08/23/2001 | US20010015399 Collapsible display system |
| 08/22/2001 | EP1125391A1 Phase difference magnifier |
| 08/16/2001 | US20010013798 Phase comparing circuit , PLL circuit , televisions broadcasting receiver, and method of comparing phase |
| 08/02/2001 | US20010010461 Phase comparator |
| 07/31/2001 | US6269135 Digital phase discriminations based on frequency sampling |
| 07/24/2001 | US6265904 Digital phase shift amplification and detection system and method |
| 07/24/2001 | US6265902 Slip-detecting phase detector and method for improving phase-lock loop lock time |
| 07/19/2001 | DE19939104A1 Ladungspumpe Charge pump |
| 07/18/2001 | EP1116323A1 Lock-in aid frequency detector |
| 07/12/2001 | US20010007436 Frequency detector and phase-locked loop circuit including the detector |
| 07/11/2001 | EP1115205A1 Pll circuit and radio communication terminal using pll |
| 07/11/2001 | EP1115198A2 Frequency detector and phase-locked loop circuit including the detector |
| 07/10/2001 | US6259754 Phase frequency detection circuit and method for liquid crystal display |
| 07/04/2001 | CN1302119A Digital phase detecting method and its device |
| 07/03/2001 | US6256362 Frequency acquisition circuit and method for a phase locked loop |
| 07/03/2001 | US6255858 Phase-frequency detector and phase-locked loop circuit incorporating the same |
| 06/19/2001 | US6249188 Error-suppressing phase comparator |
| 06/12/2001 | US6246738 Phase modulated reduction of clock wander in synchronous wide area networks |
| 05/10/2001 | WO2001033828A2 Slip-detecting phase detector and method for improving phase-lock loop lock time |
| 05/01/2001 | US6225843 Semiconductor integrated circuit device |
| 05/01/2001 | US6225831 Phase detector |
| 04/25/2001 | CN1292946A Phase detector |
| 04/24/2001 | US6222895 Phase-locked loop (PLL) circuit containing a sampled phase detector with reduced jitter |
| 04/17/2001 | US6219394 Digital frequency sampling and discrimination |
| 04/17/2001 | US6218868 Phase comparator |
| 04/03/2001 | US6211741 Clock and data recovery PLL based on parallel architecture |
| 04/03/2001 | CA2041621C Method and apparatus for measuring a phase-modulated signal |
| 03/22/2001 | WO2001020350A1 Phase detector |
| 03/20/2001 | US6204750 Interrogator for electronic identification system |
| 03/07/2001 | CN1286854A Digital phase discrimination based on frequency sampling |