| Patents for H03D 13 - Circuits for comparing the phase or frequency of two mutually-independent oscillations (1,662) |
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| 06/27/1989 | US4843332 Wide range digital phase/frequency detector |
| 06/20/1989 | US4841257 High-speed sampling phase detector for clock and data recovery system |
| 04/26/1989 | EP0313206A2 Frequency detector for frequency locked loop |
| 04/04/1989 | US4819081 Phase comparator for extending capture range |
| 03/28/1989 | US4817199 Phase locked loop having reduced response time |
| 02/28/1989 | US4808856 Low voltage phase comparator |
| 02/14/1989 | US4804928 Phase-frequency compare circuit for phase lock loop |
| 01/31/1989 | US4801894 Frequency detector for frequency locked loop |
| 12/20/1988 | US4792767 Phase and frequency detector and use of this detector in a phase-lock loop |
| 12/20/1988 | CA1247202A1 Phase detector and pll-circuit comprising such phase detector |
| 11/30/1988 | EP0292935A2 Phase comparator |
| 11/23/1988 | EP0291826A1 Digital demodulator |
| 10/19/1988 | EP0287311A2 Duty cycle independent phase detector |
| 10/12/1988 | EP0153932B1 Frequency and phase comparator with slip detection capability |
| 10/11/1988 | CA1243084A1 Phase detection circuit |
| 09/21/1988 | EP0283275A2 Phase comparator circuit |
| 09/21/1988 | EP0283160A2 Phase comparators |
| 07/05/1988 | CA1238954A1 Frequency comparator circuits |
| 06/07/1988 | US4749937 Phase detector independent of clock duty-cycle |
| 05/10/1988 | EP0168426A4 Multiple frequency digital phase locked loop. |
| 04/20/1988 | EP0264035A2 Phase comparator, especially for a phase-locked loop |
| 04/19/1988 | US4739278 Digital phase-frequency discriminator comprising simplified reset means and associated method |
| 04/07/1988 | DE3632002A1 Cross-bar quadrature mixer |
| 03/29/1988 | US4734630 Method and apparatus for phase comparison adapted to produce an error signal against an input signal having a relatively wide range of phase and frequency variation |
| 02/24/1988 | EP0256637A2 Phase detector |
| 01/07/1988 | EP0251144A1 Phase comparator |
| 12/08/1987 | US4712060 Sampling average phase meter |
| 11/25/1987 | EP0246269A1 Digital phase-frequency discriminator comprising simplified reset means. |
| 11/19/1987 | EP0246135A1 Phase frequency detector and its use in a phase-locked loop |
| 08/11/1987 | US4686484 Phase detection circuit |
| 06/30/1987 | US4677322 Frequency comparator circuits |
| 05/21/1987 | WO1987003097A1 Digital phase-frequency discriminator comprising simplified reset means and associated method |
| 04/21/1987 | US4659949 Phase-locked loop circuit |
| 03/11/1987 | EP0213647A1 Phase detector |
| 02/10/1987 | US4642489 Sampled data amplitude linear phase detector |
| 12/23/1986 | US4631496 Battery saving system for a frequency synthesizer |
| 12/16/1986 | US4629914 Phase comparing circuit |
| 12/02/1986 | CA1214832A1 Single frequency detector |
| 10/29/1986 | CN86101722A Wide range digital phase/frequency detector |
| 10/22/1986 | EP0198701A2 Phase detection circuit |
| 09/03/1986 | EP0192652A1 Frequency comparator circuits |
| 08/19/1986 | CA1210084A1 Phase comparing circuit |
| 07/15/1986 | CA1207847A1 Frequency and phase comparator with slip detection capability |
| 07/08/1986 | US4599570 Automatic offset nulling circuit |
| 06/10/1986 | US4594564 Frequency detector for use with phase locked loop |
| 06/10/1986 | US4594563 Signal comparison circuit and phase-locked-loop using same |
| 05/07/1986 | EP0180342A2 Signal comparison circuit and phase-locked-loop using same |
| 04/15/1986 | US4583053 Phase detector insensitive to missing pulses |
| 04/09/1986 | EP0177100A2 Phase comparator circuit |
| 02/27/1986 | WO1986001356A1 Frequency comparator circuits |
| 01/22/1986 | EP0168426A1 Multiple frequency digital phase locked loop. |
| 12/18/1985 | EP0164806A2 PLL-circuit |
| 11/26/1985 | CA1197321A1 Digital phase comparator with improved sensitivity for small phase differences |
| 07/18/1985 | WO1985003176A1 Multiple frequency digital phase locked loop |
| 07/02/1985 | CA1189915A1 Swallow counter for a frequency synthesizer |
| 05/28/1985 | US4520321 Phase difference detector with phase inversion of one input signal when phase difference is small |
| 05/07/1985 | US4516250 Frequency and phase comparator with slip detection capability |
| 05/07/1985 | CA1186734A1 Phase detectors for detecting a mutual phase difference between two signals |
| 03/14/1985 | WO1985001163A1 Frequency and phase comparator with slip detection capability |
| 02/19/1985 | US4500852 Wide range phase detector utilizing a plurality of stacked detector modules |
| 01/15/1985 | US4494090 Frequency modulation system for a frequency synthesizer |
| 12/25/1984 | US4490688 Digital and analog phase detector for a frequency synthesizer |
| 12/18/1984 | CA1179743A1 Phase comparator |
| 12/11/1984 | US4488109 Phase detectors for detecting a mutual phase difference between two signals |
| 12/05/1984 | EP0060862B1 Generator circuit of a regulation voltage function of a differential frequency or phase and utilization of such circuit |
| 11/20/1984 | US4484153 Voltage converter for a frequency synthesizer |
| 11/20/1984 | US4484143 In a data transmission system |
| 10/16/1984 | US4477919 Range control circuit for counter to be used in a frequency synthesizer |
| 10/09/1984 | CA1175909A1 Zone switching system for a frequency synthesized transceiver |
| 09/18/1984 | US4472820 Program swallow counting device using a single synchronous counter for frequency synthesizing |
| 09/04/1984 | US4470018 Circuit for producing a control voltage depending on frequency and/or phase differences |
| 06/12/1984 | US4454531 Digital circuit for providing a binary signal on the occurrence of a predetermined frequency ratio of two signals |
| 06/05/1984 | CA1168716A1 Ccd demodulator circuit |
| 05/29/1984 | US4451794 Phase comparator |
| 04/03/1984 | US4441098 Multiposition switch with minimum interconnections |
| 02/14/1984 | US4431970 Quadrature detector using a double balanced differential circuit and a constant current circuit |
| 01/31/1984 | US4429239 Combined phase detector and low pass filter |
| 12/20/1983 | US4422176 Phase sensitive detector |
| 11/29/1983 | CA1157918A1 Digital frequency-phase comparator |
| 11/22/1983 | CA1157534A1 Wideband digital frequency discriminator and phase and frequency detector |
| 10/18/1983 | US4410858 Electronic circuit including a current mirror circuit |
| 09/29/1983 | WO1983003326A1 Combined phase detector and low pass filter |
| 09/06/1983 | US4403342 Zone switching system for a frequency synthesized transceiver |
| 08/23/1983 | CA1152581A1 Phase comparison circuit |
| 08/23/1983 | CA1152580A1 Phase comparison circuit arrangement |
| 07/19/1983 | US4394776 Priority channel system for a synthesized transceiver |
| 07/12/1983 | CA1149888A1 Differential amplifier current repeater |
| 06/21/1983 | US4389615 CCD Demodulator circuit |
| 04/06/1983 | EP0075591A1 Frequency synthesized transceiver |
| 03/22/1983 | US4377871 Transmit security system for a synthesized transceiver |
| 02/01/1983 | US4371975 Sampling NRZ data phase detector |
| 02/01/1983 | US4371974 NRZ Data phase detector |
| 01/25/1983 | US4370619 Phase comparison circuit arrangement |
| 01/04/1983 | US4367444 Frequency discriminator and frequency modulator incorporating such discriminator |
| 12/14/1982 | CA1137568A1 Digital phase comparator circuit |
| 12/07/1982 | US4362998 FM Detector using a phase shift network and an analog multiplier |
| 11/16/1982 | US4359691 Demodulator for frequency modulated signal accompanied by reference signal |
| 11/09/1982 | US4358736 Phase comparison circuit |
| 10/14/1982 | WO1982003477A1 Frequency synthesized transceiver |
| 10/12/1982 | US4354274 Digital signal transmission system |