Patents
US 8219053 B2: Automatic tuning reader
- Granted
- 2012-07-10
- Filed
- 2008-10-20 application 12254241
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A system and method of automatically tuning a reading device that remotely monitors RFID tags or transponders. The reading device utilizes the phase signal of an antenna signal wherein the harmonic of the antenna signal is filtered through a signal coupling transformer and utilizes the antenna current reading to determine the optimal capacitance setting for the reader by adjusting capacitors and storing the relative phase signal and level of current in a processor. In one embodiment, the method comprises supplying power to the reading device, monitoring the power supply, storing data related to the monitored power supply, emitting a signal from an antenna, filtering the harmonic of such signal, outputting the phase signal to a processor and adjusting capacitors based on the phase signal and monitored current.
Source: PVGPATDIS, file of 2026-04-10 (ipg120710.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Destron Fearing Corporation 6 patents | US company or organization | South St. Paul, MN | DESTRON FEARING CORPORATION State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Ezequiel Mejia | Woodbury, MN | 7 | PVGPATDIS, file of 2026-04-10 | |
| Yuri Smirnov | Eagan, MN | 8 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H04Q | Selecting | H04Q9/00 | PVGPATDIS, file of 2026-04-10 |
| G06K | Graphical data reading ; presentation of data; record carriers; handling record carriers | G06K7/0008 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2019-04-02 | Release of security interest Release (reel 030825 / frame 0310) | MORGAN STANLEY SENIOR FUNDING, INC. signed 2019-04-01 | ALLFLEX, USA, INC. DALLAS, TX DESTRON FEARING CORPORATION DALLAS, TX DIGITAL ANGEL CORPORATION SOUTH SAINT PAUL, MN GT ACQUISITION SUB, INC. SOUTH SAINT PAUL, MN | 49126/851 | ECORSEXC, file of 2026-09-25 |
| 2019-04-02 | Release of security interest Release (reel 030833 / frame 0469) | BANK OF AMERICA, N.A. signed 2019-04-01 | ALLFLEX, USA, INC. DALLAS, TX DESTRON FEARING CORPORATION DALLAS, TX DIGITAL ANGEL CORPORATION SOUTH SAINT PAUL, MN GT ACQUISITION SUB, INC. SOUTH SAINT PAUL, MN | 48762/555 | ECORSEXC, file of 2026-09-25 |
| 2013-07-19 | Security interest Security interest Second lien security agreement | ALLFLEX USA, INC. signed 2013-07-17 DESTRON FEARING CORPORATION signed 2013-07-17 | BANK OF AMERICA, N.A., AS COLLATERAL AGENT DALLAS, TX | 30833/469 | ECORSEXC, file of 2026-09-25 |
| 2013-07-18 | Security interest Security interest First lien security agreement | ALLFLEX USA, INC. signed 2013-07-17 DESTRON FEARING CORPORATION signed 2013-07-17 | MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT NEW YORK, NY | 30825/310 | ECORSEXC, file of 2026-09-25 |
| 2011-07-26 | Release of security interest Release of security interest | TCI BUSINESS CAPITAL, INC. signed 2011-07-25 | DIGITAL ANGEL CORPORATION DEL RAY BEACH, FL DESTRON FEARING CORPORATION SOUTH ST. PAUL, MN DIGITAL ANGEL TECHNOLOGY CORPORATION SOUTH ST. PAUL, MN FEARING MANUFACTURING CO., INC. SOUTH ST. PAUL, MN GT ACQUISITION SUB, INC. SOUTH ST. PAUL, MN | 26648/34 | ECORSEXC, file of 2026-09-25 |
| 2010-09-02 | Security interest Security interest Security agreement | DESTRON FEARING CORPORATION signed 2010-08-31 DIGITAL ANGEL CORPORATION signed 2010-08-31 DIGITAL ANGEL TECHNOLOGY CORPORATION signed 2010-08-31 FEARING MANUFACTURING CO., INC. signed 2010-08-31 GT ACQUISITION SUB, INC. signed 2010-08-31 | TCI BUSINESS CAPITAL, INC. BURNSVILLE, MN | 24933/139 | ECORSEXC, file of 2026-09-25 |
| 2008-12-11 | Assignment Assignment of assignor's interest | MEJIA, EZEQUIEL signed 2008-10-30 SMIRNOV, YURI signed 2008-10-30 | DESTRON FEARING CORPORATION SOUTH ST. PAUL, MN | 21964/146 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.