ALLEGRO MICROSYSTEMS, INC.

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Technologies

Intl Class Technology # of Patents Rank
 
 
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS3546
 
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 3197
 
 
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 23234
 
 
 
G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 1725
 
 
 
H03K PULSE TECHNIQUE 1591
 
 
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 778
 
 
 
H03F AMPLIFIERS 567
 
 
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 470
 
 
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 462
 
 
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 473

Top Patents (by citation)

Patent # Title Filing Date Issue Date Intl Class Cited #
6,334,158 User-interactive system and method for integrating applicationsNov 29, 96Dec 25, 01[G06F]52
5,258,760 Digitally dual-programmable integrator circuitJul 13, 92Nov 02, 93[H03M]51
5,442,283 Hall-voltage slope-activated sensorSep 03, 93Aug 15, 95[G01R, G01B, H03K]50
5,245,262 Hybrid control law servo co-processor integrated circuitJul 13, 92Sep 14, 93[G05B]47
6,781,359 Integrated current sensorSep 20, 02Aug 24, 04[G01R]46
5,650,719 Detection of passing magnetic articles while periodically adapting detection thresholds to changing amplitudes of the magnetic fieldJan 17, 96Jul 22, 97[G01P]45
5,694,038 Detector of passing magnetic articles with automatic gain controlJan 17, 96Dec 02, 97[G01P, H03G, F02P, G01B]41
5,507,024 FM data-system radio receiverMay 16, 94Apr 09, 96[H04B]40
5,621,319 Chopped hall sensor with synchronously chopped sample-and-hold circuitDec 08, 95Apr 15, 97[G01R, H03K]39
5,781,005 Hall-effect ferromagnetic-article-proximity sensorJun 07, 95Jul 14, 98[G01P, G01B]34

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2013/0099,704 Motor Control Circuit And Method That Reduce Speed Jitter Of An Electric MotorOct 21, 11Apr 25, 13[H02P]
2013/0099,706 Motor Control Circuit And Method That Synchronize A Speed Of An Electric Motor To An External Clock SignalOct 21, 11Apr 25, 13[H02P]
2013/0093,416 Magnetic Field Sensor and Method Used in a Magnetic Field Sensor That Adjusts a Sensitivity and/or an Offset Over TemperatureDec 05, 12Apr 18, 13[G01R]
2013/0080,087 Circuits and Methods for Processing Signals Generated by a Plurality of Magnetic Field Sensing ElementsSep 28, 11Mar 28, 13[G01R, G06F]
2013/0057,257 MAGNETIC FIELD SENSING ELEMENT COMBINING A CIRCULAR VERTICAL HALL MAGNETIC FIELD SENSING ELEMENT WITH A PLANAR HALL ELEMENTSep 07, 11Mar 07, 13[G01R, G01B]
2013/0046,488 Circuits and Methods for Automatically Adjusting a Magnetic Field Sensor in Accordance with a Speed of Rotation Sensed by the Magnetic Field SensorAug 19, 11Feb 21, 13[G06F]
2013/0032,909 HALL EFFECT ELEMENT HAVING A WIDE CROSS SHAPE WITH DIMENSIONS SELECTED TO RESULT IN IMPROVED PERFORMANCE CHARACTERISTICSAug 04, 11Feb 07, 13[H01L]
2013/0020,660 Reinforced Isolation for Current Sensor with Magnetic Field TransducerJul 22, 11Jan 24, 13[H01L]
2013/0015,843 CURRENT SENSOR WITH CALIBRATION FOR A CURRENT DIVIDER CONFIGURATIONJul 13, 11Jan 17, 13[G01R]
2013/0009,556 Electronic Circuits and Techniques for Maintaining a Consistent Power Delivered to a LoadJul 06, 11Jan 10, 13[H05B, G05F]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,416,014 Switched capacitor notch filter with fast response timeMar 12, 10Apr 09, 13[H03K]
8,384,183 Integrated hall effect element having a germanium hall plateFeb 19, 10Feb 26, 13[H01L]
8,357,983 Hall effect element having a wide cross shape with dimensions selected to result in improved performance characteristicsAug 04, 11Jan 22, 13[H01L]
8,350,563 Magnetic field sensor and method used in a magnetic field sensor that adjusts a sensitivity and/or an offset over temperatureOct 12, 10Jan 08, 13[G01N]
8,339,134 Apparatus and method for reducing a transient signal in a magnetic field sensorOct 08, 10Dec 25, 12[G01R, G01B]
8,299,783 Circuits and methods for calibration of a motion detectorAug 27, 09Oct 30, 12[G01R, G01B]
8,274,238 Electronic circuit for driving a diode loadDec 02, 09Sep 25, 12[H05B]
8,269,491 DC offset removal for a magnetic field sensorFeb 27, 08Sep 18, 12[G01R, G01N]
8,222,888 Micro-power magnetic switchSep 29, 08Jul 17, 12[G01R, G01B]
8,169,161 Electronic circuits for driving series connected light emitting diode stringsNov 10, 08May 01, 12[H05B]

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Top Inventors for This Owner

Inventor Name Address # of Patent/Pub
Doogue Michael C
Manchester, NH
64
Taylor William P
North Andover, MA
61
Vig Ravi
Bow, NH
61
Towne Jay M
Newbury, NH
24
Mangtani Vijay
Nashua, NH
21
Scheller P Karl
Not Provided
20
Monreal Gerardo
Not Provided
18
Dickinson Richard
Concord, NH
17
Haas David J
Weare, NH
17
Forrest Glenn A
Not Provided
16