Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 331/57
Name: Oscillators > Ring oscillators
Description: Subject matter wherein the oscillator comprises three or more active elements connected or cascade, the output of one active element being connected to the input of another active element to form a closed chain or loop, the active elements being so connected and biased that they are caused to switch from a conducting to a nonconducting state in succession, cyclically, thereby generating self-sustained oscillations.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next

Patent Number Title Of Patent Date Issued
6690243 Multi-phase voltage-controlled oscillator at modulated, operating frequency Feb. 10, 2004
6686806 Ring VCO based on RC timing Feb. 3, 2004
6687321 Digital PLL circuit Feb. 3, 2004
6683503 Semiconductor integrated circuit having oscillators or oscillation circuits connected to a wiring line at connection points with intervals in length therebetween Jan. 27, 2004
6683504 Ring oscillator with random noise cancellation Jan. 27, 2004
6683505 High speed voltage controlled oscillator Jan. 27, 2004
6683506 CMOS phase locked loop with voltage controlled oscillator having realignment to reference and method for the same Jan. 27, 2004
6677825 Ring oscillator circuit and a delay circuit Jan. 13, 2004
6674774 Chopped laser driver for low noise applications Jan. 6, 2004
6670858 High speed voltage-controlled ring oscillator Dec. 30, 2003
6670859 Differential ring oscillator stage Dec. 30, 2003
6667646 Small-sized digital generator producing clock signals Dec. 23, 2003
6664832 Arbitrary waveform synthesizer using a free-running ring oscillator Dec. 16, 2003
6664861 Method and apparatus for stable phase-locked looping Dec. 16, 2003
6661299 Odor sensor with organic transistor circuitry Dec. 9, 2003
6661300 Ring oscillator and means for controlling the frequency thereof Dec. 9, 2003
6657502 Multiphase voltage controlled oscillator Dec. 2, 2003
6657503 High noise rejection voltage-controlled ring oscillator architecture Dec. 2, 2003
6657504 System and method of determining ring oscillator speed Dec. 2, 2003
6650188 Coupling for LC-based VCO Nov. 18, 2003
6650190 Ring oscillator with adjustable delay Nov. 18, 2003
6650191 Low jitter ring oscillator architecture Nov. 18, 2003
6650194 Phase shift control for voltage controlled oscillator Nov. 18, 2003
6650196 Multi-frequency band controlled oscillator Nov. 18, 2003
6646512 Self-bias and differential structure based PLL with fast lockup circuit and current range calibration for process variation Nov. 11, 2003
6642801 Oscillator using virtual stages for multi-gigabit clock recovery Nov. 4, 2003
6642802 Ring oscillator providing single event transient immunity Nov. 4, 2003
RE38274 Variable delay cell with hysteresis and ring oscillator using same Oct. 14, 2003
6633202 Precision low jitter oscillator circuit Oct. 14, 2003
6624710 External oscillator resistor detection circuit Sep. 23, 2003
6621313 High frequency system with duty cycle buffer Sep. 16, 2003
6621358 Differential voltage controlled oscillator, and method therefor Sep. 16, 2003
6621359 Noise elimination circuit Sep. 16, 2003
6621360 Extended frequency range voltage-controlled oscillator Sep. 16, 2003
6617934 Phase locked loop circuits, systems, and methods Sep. 9, 2003
6617935 Oscillator and current source Sep. 9, 2003
6617936 Phase controlled oscillator Sep. 9, 2003
6611177 Voltage controlled oscillator including fluctuation transmitter for transmitting potential fluctuation by noise Aug. 26, 2003
6608529 Frequency synthesis apparatus, systems, and methods Aug. 19, 2003
6603363 Oscillator and oscillator adjustment method with stepwise delay Aug. 5, 2003
6593820 High frequency voltage controlled oscillator Jul. 15, 2003
6590458 Clock generator circuit with a PLL having an output frequency cycled in a range to reduce unwanted radiation Jul. 8, 2003
6587007 Ring topology based voltage controlled oscillator Jul. 1, 2003
6577202 Multiple duty cycle tap points for a precise and programmable duty cycle generator Jun. 10, 2003
6574169 Delay test system for normal circuit Jun. 3, 2003
6566968 Oscillator having multi-phase complementary outputs May. 20, 2003
6566970 High-speed, high PSRR, wide operating range voltage controlled oscillator May. 20, 2003
6559727 High-frequency low-voltage multiphase voltage-controlled oscillator May. 6, 2003
6556088 Phase-locked loop having a stable damping factor Apr. 29, 2003
6556089 Electronic circuitry Apr. 29, 2003

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next










 
 
  Recently Added Patents
Driving support device, method, and program
System for determining potential lot consolidation during manufacturing
System and method for burst separation and extended interleaving length
Method for spore detection
Therapeutic compositions and methods
Method and apparatus for reacquiring lines in a cache
Method and apparatus for the prevention of a service degradation attack
  Randomly Featured Patents
Simultaneous QE scanning system and methods for photovoltaic devices
Apparatus for administering a controlled dosage of a chemical substance having an improved culture chamber
Transcutaneous analyte sensor
Slurry composition and sintered part prepared therefrom
Rotating and driving system for survey instrument
Optical attenuator movement detection system
Method and apparatus for detecting battery capacity
Snow handling and conditioning apparatus
System for protecting BIOS from virus by verified system management interrupt signal source
Display control apparatus, and setting method and program for display control apparatus