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Class Information
Number: 327/148
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Synchronizing > Using multiple clocks > With feedback > Phase lock loop > With charge pump
Description: Subject matter wherein a device which pumps elemental positive or negative electrical energy is included.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
6792064 Multiple phase-locked loop circuit Sep. 14, 2004
6781425 Current-steering charge pump circuit and method of switching Aug. 24, 2004
6774730 Power rails glitch noise insensitive charge pump Aug. 10, 2004
6771729 Clock recovery circuit and transmitter-receiver therewith Aug. 3, 2004
6771102 Common mode feedback technique for a low voltage charge pump Aug. 3, 2004
6759838 Phase-locked loop with dual-mode phase/frequency detection Jul. 6, 2004
6747494 PPL arrangement, charge pump, method and mobile transceiver Jun. 8, 2004
6744292 Loop filter capacitor multiplication in a charge pump circuit Jun. 1, 2004
6741109 Method and apparatus for switching between input clocks in a phase-locked loop May. 25, 2004
6734708 Controllable current source circuit and a phase locked loop equipped with such a circuit May. 11, 2004
6721380 Fully differential CMOS phase-locked loop Apr. 13, 2004
6717446 High speed programmable charge-pump with low charge injection Apr. 6, 2004
6710666 Charge pump structure for reducing capacitance in loop filter of a phase locked loop Mar. 23, 2004
6677789 Rail-to-rail linear charge pump Jan. 13, 2004
6664829 Charge pump using dynamic charge balance compensation circuit and method of operation Dec. 16, 2003
6661293 Method and arrangement for setting a frequency Dec. 9, 2003
6642759 Charge pump using switched capacitors for phase-locked loop control and method of operation Nov. 4, 2003
6636079 Phase comparing circuit, PLL circuit, televisions broadcasting receiver, and method of comparing phase Oct. 21, 2003
6636090 Phase-locked loop circuit outputting clock signal having fixed phase difference with respect to input clock signal Oct. 21, 2003
6611161 Charge pump circuit for a high speed phase locked loop Aug. 26, 2003
6611160 Charge pump having reduced switching noise Aug. 26, 2003
6600351 Loop filter architecture Jul. 29, 2003
6597217 Low power, charge injection compensated charge pump Jul. 22, 2003
6594330 Phase-locked loop with digitally controlled, frequency-multiplying oscillator Jul. 15, 2003
6590949 Circuit and method for compensating a phase detector Jul. 8, 2003
6570422 Phase locked loop design with switch for loop filter capacitance leakage current control May. 27, 2003
6566920 Phase locked loop using lock detecting circuit May. 20, 2003
6560306 Phase locked loop (PLL) with linear parallel sampling phase detector May. 6, 2003
6560305 Frequency detector May. 6, 2003
6549082 High frequency oscillator Apr. 15, 2003
6546059 Adaptive integrated PLL loop filter Apr. 8, 2003
6522191 Synchronized voltage generator for amplifying voltage inputs Feb. 18, 2003
6512404 Low voltage charge pump for use in a phase locked loop Jan. 28, 2003
6496046 Method for increasing the control bandwidth of a frequency control circuit Dec. 17, 2002
6483358 Low power, charge injection compensated charge pump Nov. 19, 2002
6473485 Charge pump leakage current compensation systems and methods Oct. 29, 2002
6470060 Method and apparatus for generating a phase dependent control signal Oct. 22, 2002
6415007 Charge pump having two sub charge pumps which include a common charge/discharge terminal Jul. 2, 2002
6385265 Differential charge pump May. 7, 2002
6356157 Phase locked loop circuit Mar. 12, 2002
6356160 Phase lock loop and automatic gain control circuitry for clock recovery Mar. 12, 2002
6339350 Phase difference--current conversion circuit Jan. 15, 2002
6320921 Fast acquisition clock recovery using a directional frequency-phase detector Nov. 20, 2001
6292507 Method and apparatus for compensating a spread spectrum clock generator Sep. 18, 2001
6288583 PLL synthesizer circuit Sep. 11, 2001
6285725 Charge pump circuit Sep. 4, 2001
6285219 Dual mode phase and frequency detector Sep. 4, 2001
6278304 Look-ahead enabling charge pump in phase-locked loop circuits Aug. 21, 2001
6265947 Power conserving phase-locked loop and method Jul. 24, 2001
6262610 Voltage sample and hold circuit for low leakage charge pump Jul. 17, 2001

1 2 3 4 5 6 7










 
 
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