Resources Contact Us Home
Browse by Category: Main > Electrical & Energy
Class Information
Number: 327/8
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific signal discriminating (e.g., comparing, selecting, etc.) without subsequent control > By phase > Comparison between plural inputs (e.g., phase angle indication, lead-lag discriminator, etc.) > With reference signal > With varying frequency
Description: Subject matter wherein the reference signal varies over a range of different frequencies or the reference signal is compared to different frequency signals.

Patents under this class:

Patent Number Title Of Patent Date Issued
8351558 Multiphase direct RF frequency to digital converter and related method Jan. 8, 2013
8334716 Digital phase detection circuit and method Dec. 18, 2012
8302054 Retiming of multirate system Oct. 30, 2012
8289087 Method for detecting and correcting phase shift between I data clock in Q data clock in quadrature modulator or quadrature demodulator Oct. 16, 2012
8098085 Time-to-digital converter (TDC) with improved resolution Jan. 17, 2012
8024686 Retiming of multirate system Sep. 20, 2011
7847641 Digital phase and frequency detector Dec. 7, 2010
7812644 Digital frequency detector and digital phase locked loop using the digital frequency detector Oct. 12, 2010
7769121 Phase detector for data communications Aug. 3, 2010
7764088 Frequency detection circuit and detection method for clock data recovery circuit Jul. 27, 2010
7519925 Integrated circuit with dynamically controlled voltage supply Apr. 14, 2009
7443251 Digital phase and frequency detector Oct. 28, 2008
7375558 Method and apparatus for pre-clocking May. 20, 2008
7249275 Clock generating device and method for executing overclocking operation Jul. 24, 2007
7242256 Phase frequency detector with programmable delay Jul. 10, 2007
7084670 Phase-frequency detector with gated reference clock input Aug. 1, 2006
6946887 Phase frequency detector with programmable minimum pulse width Sep. 20, 2005
6798303 Clock signal generating device Sep. 28, 2004
6469544 Device for detecting abnormality of clock signal Oct. 22, 2002
6320424 Method of providing and circuit for providing phase lock loop frequency overshoot control Nov. 20, 2001
5952853 Method for extending the output range of pulse-width based phase detectors Sep. 14, 1999
5920207 Asynchronous phase detector having a variable dead zone Jul. 6, 1999
5909129 Low cost microstrip phase detector Jun. 1, 1999
5740210 Data discriminating circuit and a parallel data receiver using the same Apr. 14, 1998
5661419 Dynamic phase-frequency detector circuit Aug. 26, 1997
5606276 Method and apparatus for creating a large delay in a pulse in a layout efficient manner Feb. 25, 1997
5485108 Delayed detection type demodulator Jan. 16, 1996
5451892 Clock control technique and system for a microprocessor including a thermal sensor Sep. 19, 1995
5309111 Apparatus for measuring skew timing errors May. 3, 1994
4884035 Wide range digital phase/frequency detector Nov. 28, 1989
4843332 Wide range digital phase/frequency detector Jun. 27, 1989
4490688 Digital and analog phase detector for a frequency synthesizer Dec. 25, 1984
4451794 Phase comparator May. 29, 1984
4341995 Velocity profile analyzer Jul. 27, 1982
4151473 Phase detector circuit Apr. 24, 1979
4090126 Frequency marker generator May. 16, 1978
4090143 Digital phase comparator with reset May. 16, 1978
3972000 Phase filter for reducing the effects of the noise components altering discrete phase modulated signals Jul. 27, 1976

  Recently Added Patents
Account managing device, image processing system, and storage medium
Liquid crystal display device
Braided boomerang pet toy
Laminar library screen
Maesa japonica extracts and methods of use
Method and apparatus for determining storage capacity error for a data storage device
Nickel-cobalt-manganese multi-element lithium ion battery cathode material with dopants and its methods of preparation
  Randomly Featured Patents
Circuit and method for correction of the duty cycle value of a digital data signal
Cell sequence number synchronization system and method
Thienopyrimidine derivatives, their production and use
Cooling fin with ripples
Conveyor with downward step for stacked sheets of film material
Corner cabinet, especially for a kitchen
Refractory tile for heat exchanger protection
Assembly tool