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Magnetic Tamper Detection Circuit For Tri Vector Meter
Abstract: The various embodiments of the present invention provide a device and method to detect a magnetic tamper detection event in a tri-vector meter using magnetic Hall Effect sensors. The sensors are arranged in mutually perpendicular directions to detect a magnetic field. The sensor output signals are compared with zonal threshold values in a zone separator to classify the sensor output signal into different zones. The output of the sensor is compared with a respective detection threshold value of a zone to detect a tamper event to activate a logic circuit to output a trip signal to disconnect the load.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
30 March 2007
Publication Number
48/2008
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2017-03-30
Renewal Date
Applicants
LARSEN &TOUBRO LIMITED
KIADB INDUSTRIAL AREA ,HEBBAL-HOOTAGALLI,
MYSORE-570 018,
KARNATAKA ,INDIA
Inventors
1. KASINA BALACHANDER
KIADB INDUSTRIAL AREA ,HEBBAL-HOOTAGALLI,
MYSORE-570 018,
KARNATAKA ,INDIA
2. BALAJI GURURAJAN
KIADB INDUSTRIAL AREA ,HEBBAL-HOOTAGALLI,
MYSORE-570 018,
KARNATAKA ,INDIA
3. DEVA KARTHIKEYAN
KIADB INDUSTRIAL AREA ,HEBBAL-HOOTAGALLI,
MYSORE-570 018,
KARNATAKA ,INDIA
4. VASANTHARAJAN MURALI
KIADB INDUSTRIAL AREA ,HEBBAL-HOOTAGALLI,
MYSORE-570 018,
KARNATAKA ,INDIA
Specification
Documents
Orders
| Section | Controller | Decision Date |
|---|---|---|
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 0651-che-2007-form 1.pdf | 2011-09-03 |
| 1 | 651-CHE-2007-RELEVANT DOCUMENTS [29-03-2020(online)].pdf | 2020-03-29 |
| 2 | 0651-che-2007-drawings.pdf | 2011-09-03 |
| 2 | 651-CHE-2007-RELEVANT DOCUMENTS [29-03-2019(online)].pdf | 2019-03-29 |
| 3 | 651-CHE-2007-RELEVANT DOCUMENTS [30-03-2018(online)].pdf | 2018-03-30 |
| 3 | 0651-che-2007-description(provisional).pdf | 2011-09-03 |
| 4 | Abstract_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 4 | 651-CHE-2007 FORM-13 06-02-2014.pdf | 2014-02-06 |
| 5 | Claims_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 5 | 651-CHE-2007 POWER OF ATTORNEY 06-02-2014.pdf | 2014-02-06 |
| 6 | Description_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 6 | 651-CHE-2007 CORRESPONDENCE OTHERS 02-06-2015.pdf | 2015-06-02 |
| 7 | Letter to the Controller.pdf | 2015-06-04 |
| 7 | Drawings_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 8 | Marked Copy_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 8 | FER Response-651CHE2007.pdf | 2015-06-04 |
| 9 | Amended Forms 1, 3, 5, 18 and GPA.pdf | 2015-06-04 |
| 9 | Other Patent Document [18-10-2016(online)].pdf | 2016-10-18 |
| 10 | 651-CHE-2007-Correspondence-Pa-041016.pdf | 2016-10-05 |
| 10 | Amended and Marked copy of Complete specification.pdf | 2015-06-04 |
| 11 | 651-CHE-2007-Power of Attorney-041016.pdf | 2016-10-05 |
| 11 | Amended and Marked copy of Claims.pdf | 2015-06-04 |
| 12 | Amended and Marked copy of Abstract.pdf | 2015-06-04 |
| 12 | Form 26 [03-10-2016(online)].pdf | 2016-10-03 |
| 13 | 651-CHE-2007_EXAMREPORT.pdf | 2016-07-02 |
| 13 | Letter to the Controller.pdf_624.pdf | 2015-06-23 |
| 14 | Amended and Marked copy of Abstract.pdf_623.pdf | 2015-06-23 |
| 14 | FER Response-651CHE2007.pdf_625.pdf | 2015-06-23 |
| 15 | Amended and Marked copy of Claims.pdf_627.pdf | 2015-06-23 |
| 15 | Amended Forms 1, 3, 5, 18 and GPA.pdf_626.pdf | 2015-06-23 |
| 16 | Amended and Marked copy of Complete specification.pdf_628.pdf | 2015-06-23 |
| 17 | Amended Forms 1, 3, 5, 18 and GPA.pdf_626.pdf | 2015-06-23 |
| 17 | Amended and Marked copy of Claims.pdf_627.pdf | 2015-06-23 |
| 18 | FER Response-651CHE2007.pdf_625.pdf | 2015-06-23 |
| 18 | Amended and Marked copy of Abstract.pdf_623.pdf | 2015-06-23 |
| 19 | 651-CHE-2007_EXAMREPORT.pdf | 2016-07-02 |
| 19 | Letter to the Controller.pdf_624.pdf | 2015-06-23 |
| 20 | Amended and Marked copy of Abstract.pdf | 2015-06-04 |
| 20 | Form 26 [03-10-2016(online)].pdf | 2016-10-03 |
| 21 | 651-CHE-2007-Power of Attorney-041016.pdf | 2016-10-05 |
| 21 | Amended and Marked copy of Claims.pdf | 2015-06-04 |
| 22 | 651-CHE-2007-Correspondence-Pa-041016.pdf | 2016-10-05 |
| 22 | Amended and Marked copy of Complete specification.pdf | 2015-06-04 |
| 23 | Amended Forms 1, 3, 5, 18 and GPA.pdf | 2015-06-04 |
| 23 | Other Patent Document [18-10-2016(online)].pdf | 2016-10-18 |
| 24 | Marked Copy_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 24 | FER Response-651CHE2007.pdf | 2015-06-04 |
| 25 | Letter to the Controller.pdf | 2015-06-04 |
| 25 | Drawings_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 26 | Description_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 26 | 651-CHE-2007 CORRESPONDENCE OTHERS 02-06-2015.pdf | 2015-06-02 |
| 27 | Claims_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 27 | 651-CHE-2007 POWER OF ATTORNEY 06-02-2014.pdf | 2014-02-06 |
| 28 | Abstract_Granted 282036_30-03-2017.pdf | 2017-03-30 |
| 28 | 651-CHE-2007 FORM-13 06-02-2014.pdf | 2014-02-06 |
| 29 | 651-CHE-2007-RELEVANT DOCUMENTS [30-03-2018(online)].pdf | 2018-03-30 |
| 29 | 0651-che-2007-description(provisional).pdf | 2011-09-03 |
| 30 | 651-CHE-2007-RELEVANT DOCUMENTS [29-03-2019(online)].pdf | 2019-03-29 |
| 30 | 0651-che-2007-drawings.pdf | 2011-09-03 |
| 31 | 0651-che-2007-form 1.pdf | 2011-09-03 |
| 31 | 651-CHE-2007-RELEVANT DOCUMENTS [29-03-2020(online)].pdf | 2020-03-29 |