David Tom Erickson

Address:

4928 Acorn Rdg Rd, Minnetonka, MN 55345

VIN:

4YMUL081X7M044710

Make:

BMW

Model:

X5-Series AWD 4dr 4.8i

Year:

2007

US Patent:

7132946, Nov 7, 2006

Filed:

Apr 8, 2004

Appl. No.:

10/820584

Inventors:

Michele A. Waldner - Minneapolis MN, US
David P. Erickson - Stillwater MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G08B 13/14

US Classification:

3405721, 3405727, 340 102

Abstract:

Various radio frequency identification (RFID) tags are described that dynamically vary their resonant frequency to reduce or eliminate the potential effects of electromagnetic “tag-to-tag” coupling. An RFID tag, for example, includes a main antenna tuned to a first resonant frequency, and switching circuitry that dynamically changes the resonant frequency of the main antenna. The switching circuitry may selectively couple electrical elements, such as capacitive elements, inductive elements, or combinations thereof, to vary the resonant frequency of the RFID tag. The RFID tag may include a sensing circuit that determines when to selectively couple the electrical element to the main antenna to adjust the resonant frequency of the main antenna.

US Patent:

7256692, Aug 14, 2007

Filed:

Dec 23, 2004

Appl. No.:

11/021646

Inventors:

Richard D. Vatsaas - Eagan MN, US
David B. Erickson - Farmington MN, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G08B 13/00

US Classification:

340550, 340540, 307116, 307147

Abstract:

One apparatus embodiment includes a patterned electrically conductive layer, a power source, and an actuator. The power source provides an electrical signal to the electrically conductive layer. The monitoring unit monitors the electrical signal and initiates an action based upon a change in the electrical signal.

US Patent:

7295120, Nov 13, 2007

Filed:

Dec 10, 2004

Appl. No.:

11/008858

Inventors:

Michele A. Waldner - Minneapolis MN, US
David P. Erickson - Stillwater MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G08B 13/14

US Classification:

3405727, 3405728, 3405721, 34082549, 235385

Abstract:

A device for verifying a location of a radio-frequency identification (RFID) tag on an item. One embodiment of the invention provides a device for verifying the location of an RFID tag on an item including: an item holder; and an RF antenna attached to the item holder, where the item holder includes a readable volume where the RF antenna can read or write to an RFID tag, and where the item holder includes a non-readable volume where the RF antenna cannot read or write to an RFID tag. The present invention also relates to methods of verifying the location of a radio-frequency identification (RFID) tag on an item.

US Patent:

7304577, Dec 4, 2007

Filed:

Nov 2, 2006

Appl. No.:

11/555699

Inventors:

Michele A. Waldner - Minneapolis MN, US
David P. Erickson - Stillwater MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G08B 13/14

US Classification:

3405721, 3405727, 340 102

Abstract:

Various radio frequency identification (RFID) tags are described that dynamically vary their resonant frequency to reduce or eliminate the potential effects of electromagnetic “tag-to-tag” coupling. An RFID tag, for example, includes a main antenna tuned to a first resonant frequency, and switching circuitry that dynamically changes the resonant frequency of the main antenna. The switching circuitry may selectively couple electrical elements, such as capacitive elements, inductive elements, or combinations thereof, to vary the resonant frequency of the RFID tag. The RFID tag may include a sensing circuit that determines when to selectively couple the electrical element to the main antenna to adjust the resonant frequency of the main antenna.

US Patent:

7421637, Sep 2, 2008

Filed:

Jan 16, 2003

Appl. No.:

10/346353

Inventors:

David B. Erickson - Plano TX, US

Assignee:

Cisco Technology, Inc. - San Jose CA

International Classification:

G01R 31/28

US Classification:

714739

Abstract:

Generating test input includes initializing a current pseudo-random value at a test input generator coupled to a circuit component. Write data is received from the circuit component. The following are repeated to generate next pseudo-random values as test input. The current pseudo-random value and the write data are retrieved. A next pseudo-random value is generated from the current pseudo-random value and the write data according to a generation function. The next pseudo-random value is transferred to the circuit component as the test input.

US Patent:

7511601, Mar 31, 2009

Filed:

May 20, 2002

Appl. No.:

10/153124

Inventors:

Peter M. Eisenberg - Minneapolis MN, US
David P. Erickson - Stillwater MN, US
Edward D. Goff - Mahtomedi MN, US
Mitchell B. Grunes - Minneapolis MN, US
Gene J. Hickok - Cottage Grove MN, US
Janet T. Keller - Eagan MN, US
Jon A. Kirschhoffer - White Bear Lake MN, US
John M. Kruse - Minneapolis MN, US
Diane E. Morel - Shoreview MN, US
Scott D. Pearson - Woodbury MN, US
Chester Piotrowski - White Bear Lake MN, US
Edmund J. Ring - Circle Pines MN, US
Robert A. Sainati - Bloomington MN, US
Michele A. Waldner - Minneapolis MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

H04Q 5/22

US Classification:

340 351, 34082549, 340 101, 340 102, 340 1032, 3405721

Abstract:

Various systems and methods of handling items such as files are disclosed, including systems and methods for polling RFID-tagged items while they are stored in storage areas.

US Patent:

20090024526, Jan 22, 2009

Filed:

Oct 23, 2007

Appl. No.:

11/877512

Inventors:

David Erickson - Excelsior MN, US

International Classification:

G06Q 40/00
G06F 15/16

US Classification:

705 44, 709217, 705 35

Abstract:

One preferred embodiment provides mobile device based registrations and transactions by providing an aggregator, in the form of a server connected to the internet for collecting and selectively distributing user data. The aggregator may obtain the user data through the mobile network operator, a third party data source (e.g., a credit reporting bureau), or from one-time user input with the aggregator. The user can selectively transmit their user data quickly (e.g., with the selection of a single link) via their mobile device between the aggregator and a third party content provider (e.g., a gambling site, adult content site, banking site, etc.).

US Patent:

20090085750, Apr 2, 2009

Filed:

Sep 27, 2007

Appl. No.:

11/904625

Inventors:

Michele A. Waldner - Minneapolis MN, US
David P. Erickson - Stillwater MN, US
James P. McGee - Cedar MN, US
Swagata R. Banerjee - North Oaks MN, US
Robert A. Sainati - Bloomington MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G08B 13/14

US Classification:

3405727

Abstract:

The invention is directed to an extended radio-frequency identification (RFID) tag. The extended RFID tag includes an ultra-high frequency (UHF) RFID tag having a dipole antenna attached to a first surface of a substrate. The extended RFID tag further includes an antenna extension attached to the UHF RFID tag and overlapping at least a portion of the dipole antenna for electromagnetically coupling the antenna extension and the dipole antenna in operation. The extended RFID tag further includes an insulator positioned between the dipole antenna and the antenna extension to electrically isolate the dipole antenna from the antenna extension.