Inventor

Ravi Vig

Inventor

Bow, NH, US

Overview

1988–2021

Patent span

Physics

Primary field (CPC G)

Patents· 66 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Dprimary

G01DMeasuring not specially adapted for a specific variable21%

G01RMeasuring electric variables20%

H03KPulse technique9%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock8%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%

G01VGeophysics4%

H10NElectric solid-state devices not otherwise provided for4%

H01LSemiconductor devices4%

G01BMeasuring length, thickness or similar linear dimensions3%

H03MCoding3%

PatentTitleYear

10,916,665Magnetic field sensor integrated circuit with an integrated coil2021 10,837,800Arrangements for magnetic field sensors that act as movement detectors2020 10,234,513Magnetic field sensor integrated circuit with integral ferromagnetic material2019 10,230,006Magnetic field sensor integrated circuit with an electromagnetic suppressor2019 10,215,590Magnetic field sensor for sensing a proximity and/or a location of an object2019 10,041,810Arrangements for magnetic field sensors that act as movement detectors2018 10,012,518Magnetic field sensor for sensing a proximity of an object2018 9,812,588'Magnetic field sensor integrated circuit with integral ferromagnetic material'2017 9,666,788'Integrated circuit package having a split lead frame'2017 9,494,660'Integrated circuit package having a split lead frame'2016 9,411,025'Integrated circuit package having a split lead frame and a magnet'2016 9,151,771'Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object'2015 9,151,807'Circuits and methods for generating a self-test of a magnetic field sensor'2015 9,052,349'Magnetic field sensor and method used in a magnetic field sensor that adjusts a sensitivity and/or an offset over temperature'2015 8,994,369'Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object'2015 8,818,749'Circuits and methods for generating a self-test of a magnetic field sensor'2014 8,754,640'Magnetic field sensors and related techniques that can provide self-test information in a formatted output signal'2014 8,624,588'Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation as a ferromagnetic object'2014 8,447,556'Circuits and methods for generating a self-test of a magnetic field sensor'2013 8,384,183'Integrated hall effect element having a germanium hall plate'2013 8,350,563'Magnetic field sensor and method used in a magnetic field sensor that adjusts a sensitivity and/or an offset over temperature'2013 8,089,270'Magnetic field detector having a variable threshold'2012 7,936,144'Self-calibration algorithms in a small motor driver IC with an integrated position sensor'2011 7,834,603'Circuit combining a switching regulator and an overvoltage detection circuit'2010 7,746,056'Integrated sensor'2010 7,687,882'Methods and apparatus for integrated circuit having multiple dies with at least one on chip capacitor'2010 7,619,406'Methods and apparatus for magnetic article detection'2009 7,552,016'Integrated circuit having a multi-purpose node configured to receive a threshold voltage and to provide a fault signal'2009 7,548,056'Methods and apparatus for magnetic article detection'2009 7,518,354'Multi-substrate integrated sensor'2009 7,362,094'Methods and apparatus for magnetic article detection'2008 7,307,824'Magnetic pole insensitive switch circuit'2007 7,259,545'Integrated sensor'2007 7,085,119'Magnetic pole insensitive switch circuit'2006 7,046,000'Rotation detecting sensor'2006 7,026,808'Method and apparatus for providing information from a speed and direction sensor'2006 6,919,720'Peak-to-peak signal detector'2005 6,815,944'Method and apparatus for providing information from a speed and direction sensor'2004 6,693,419'Proximity detector'2004 6,692,676'Method for fabricating a magnet structure'2004 6,690,155'Magnetic gear tooth sensor with Hall cell detector'2004 6,622,012'Magnetic pole insensitive switch circuit'2003 6,356,741'Magnetic pole insensitive switch circuit'2002 6,297,627'Detection of passing magnetic articles with a peak-to-peak percentage threshold detector having a forcing circuit and automatic gain control'2001 6,278,269'Magnet structure'2001 6,265,865'Single unitary plastic package for a magnetic field sensing device'2001 6,232,768'Centering a signal within the dynamic range of a peak detecting proximity detector'2001 6,100,680'Detecting the passing of magnetic articles using a transducer-signal detector having a switchable dual-mode threshold'2000 6,091,239'Detection of passing magnetic articles with a peak referenced threshold detector'2000 5,963,028'Package for a magnetic field sensing device'1999 5,917,320'Detection of passing magnetic articles while periodically adapting detection threshold'1999 5,781,005'Hall-effect ferromagnetic-article-proximity sensor'1998 5,729,130'Tracking and holding in a DAC the peaks in the field-proportional voltage in a slope activated magnetic field sensor'1998 5,694,038'Detector of passing magnetic articles with automatic gain control'1997 5,686,894'Two terminal I.C. magnetic-field detector for use in a liquid level sensor and having an anti-slosh feature'1997 5,650,719'Detection of passing magnetic articles while periodically adapting detection thresholds to changing amplitudes of the magnetic field'1997 5,619,137'Chopped low power magnetic-field detector with hysteresis memory'1997 5,581,179'Hall-effect ferrous-article-proximity sensor assembly'1996 5,517,112'Magnetic field detector with noise blanking'1996 5,442,283'Hall-voltage slope-activated sensor'1995 5,389,889'Temperature-compensated current source for use in a hall analog magnetic-field detector'1995 5,264,783'Contactless magnet-activated proportional controller'1993 5,218,298'Two-terminal-hall-sensors monitoring system for providing decoded magnetic field amplitude signals and system diagnostic signals'1993 5,045,920'Dual-Hall ferrous-article-proximity sensor'1991 4,791,311'Two-terminal multiplexable sensor'1988 4,751,463'Integrated voltage regulator circuit with transient voltage protection'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1995Based in Concord, NH, US· patent location history

1991–2013Patents assigned to ALLEGRO MICROSYSTEMS INC (44)· patent assignee history

1996–2019Based in Bow, NH, US· patent location history

2012–2019Patents assigned to VIG RAVI (8)· patent assignee history

2012–2014Patents assigned to SCHELLER P KARL (4)· patent assignee history

2014–2021Patents assigned to ALLEGRO MICROSYSTEMS LLC (18)· patent assignee history

2014–2019Patents assigned to DAVID PAUL (3)· patent assignee history

2019–2021Based in Bedford, NH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ALLEGRO MICROSYSTEMS INC	44	1991–2013
ALLEGRO MICROSYSTEMS LLC	18	2014–2021
VIG RAVIself	8	2012–2019
SCHELLER P KARL	4	2012–2014
DAVID PAUL	3	2014–2019

Locations

Location	Patents	Span
Bow, NH, US	55	1996–2019
Concord, NH, US	7	1988–1995
Bedford, NH, US	4	2019–2021