Jeffrey P Seefried from 9206 121St Ave NE, Everett, WA 98258, age 56

Us Patents

Compensation System And Method For Negative Capacitive Coupling In Idc
view source
US Patent:

7140924, Nov 28, 2006
Filed:

Nov 22, 2004
Appl. No.:

10/995064
Inventors:

John M. Redfield - Brier WA, US
Jeffrey P. Seefried - Everett WA, US
Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY
International Classification:

H01R 24/00
US Classification:

439676
Abstract:

A insulation displacement connector (IDC) patch panel includes a circuit (PC) board with interdigitated capacitance for balancing out inherent capacitance found within IDCs of the panel. Unwanted cross-talk signals are reduced as a consequence.

Connector Isolation Shielding System And Method
view source
US Patent:

7273396, Sep 25, 2007
Filed:

Jun 14, 2006
Appl. No.:

11/424219
Inventors:

Michael Itano - Sammamish WA, US
Frank Chin-Hwan Kim - Woodinville WA, US
John Redfield - Brier WA, US
Jeffrey P. Seefried - Lake Stevens WA, US
Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY
International Classification:

H01R 13/648
US Classification:

439607, 439404
Abstract:

Implementations of a shielded connector system involve connector isolation shielding using shield enclosures to reduce crosstalk and noise transmitted between adjacent signal cable connectors. These implementations allow for manufacture of new equipment and also retrofitting of existing equipment for connector isolation shielding using standard connector configurations without specialized labor intensive terminations for cable and for connectors required of conventional approaches.

Connector Isolation Station System
view source
US Patent:

7278879, Oct 9, 2007
Filed:

Feb 23, 2006
Appl. No.:

11/361845
Inventors:

Frank Chin-Hwan Kim - Woodinville WA, US
Jeffrey P. Seefried - Lake Stevens WA, US
John Redfield - Brier WA, US
Darrell W. Zielke - Bothell WA, US
Patrick S. McNutt - Carnation WA, US
Phillip Phung - Kirkland WA, US
Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY
International Classification:

H01R 13/60
H01R 13/66
US Classification:

4395401
Abstract:

A connector isolation station system includes ports to receive connectors and includes shield members. The shield members have material properties to substantially shield, attenuate, absorb, diminish, or otherwise hinder or at least partially block wireless signals and noise from impinging upon or otherwise interfering with signal transmissions occurring through the connectors located in the connector isolation station. For instance, transmissions through adjacent connectors are substantially prevented from interfering with one another.

Circuits, Systems And Methods For Implementing High Speed Data Communications Connectors That Provide For Reduced Modal Alien Crosstalk In Communications Systems
view source
US Patent:

7736195, Jun 15, 2010
Filed:

Mar 10, 2009
Appl. No.:

12/401587
Inventors:

Jeffrey Alan Poulsen - Edmonds WA, US
Jason Erickson - Bothell WA, US
Jeffrey P. Seefried - Lake Stevens WA, US
Assignee:

Leviton Manufacturing Co., Inc. - Melville NY
International Classification:

H01R 24/00
US Classification:

439676, 439941
Abstract:

A communications outlet includes eight outlet tines positioned adjacent one another and defining four pairs of outlet tines. The fourth and fifth outlet tines define a first pair, the first and second outlet tines define a second pair, the third and sixth outlet tines define a third pair, and the seventh and eighth outlet tines define a fourth pair. Each outlet tine has a free end near to which a plug contact is adapted to touch and each outlet tine has a fixed end coupled through a corresponding conductive trace to a corresponding conductive wire termination contact. The communications outlet includes a first modal alien crosstalk compensation stage connected to the outlet tines associated with the second, third, and fourth pairs. The first modal alien crosstalk compensation stage includes independent capacitive components operably responsive to differential signals on the third pair to introduce common mode signals onto the second and fourth pairs that have the opposite polarity of common mode signals on the second and fourth pairs at points where the plug contacts connect with the outlet tines.

Internal Crosstalk Compensation Circuit Formed On A Flexible Printed Circuit Board Positioned Within A Communications Outlet, And Methods And System Relating To Same
view source
US Patent:

7824231, Nov 2, 2010
Filed:

Sep 19, 2008
Appl. No.:

12/234597
Inventors:

Franklin C. Marti - Clinton WA, US
Jason Erickson - Bothell WA, US
Jeffrey P. Seefried - Lake Stevens WA, US
Assignee:

Leviton Manufacturing Co., Inc. - Melville NY
International Classification:

H01R 24/00
US Classification:

439676, 439949
Abstract:

A communications outlet includes eight outlet tines positioned adjacent to one another and define four pairs of outlet tines. The fourth and fifth outlet tines define a first pair, the first and second outlet tines define a second pair, the third and sixth outlet tines define a third pair, and the seventh and eighth outlet tines define a fourth pair. Each outlet tine has a free end near which a plug tine is adapted to contact the outlet tine and each outlet tine has a fixed end coupled through a corresponding conductive tine to a corresponding electrical contact. The communications outlet includes an internal crosstalk compensation stage having a plurality of conductive fingers. Each conductive finger is physically connected to a corresponding one of the outlet tines proximate the free ends of the tines. The internal crosstalk compensation stage is operable to provide positive compensation for internal crosstalk between pairs corresponding to the tines to which the conductive fingers of the flexible printed circuit board are attached.

High Speed Data Communications Connector Circuits, Systems, And Methods For Reducing Crosstalk In Communications Systems
view source
US Patent:

7967645, Jun 28, 2011
Filed:

Oct 22, 2009
Appl. No.:

12/604207
Inventors:

Franklin C. Marti - Clinton WA, US
Jeffrey Alan Poulsen - Edmonds WA, US
Jason Erickson - Bothell WA, US
Jeffrey P. Seefried - Lake Stevens WA, US
Assignee:

Leviton Manufacturing Co., Inc. - Melville NY
International Classification:

H01R 24/00
US Classification:

439676
Abstract:

A communications outlet includes a plurality of electrically conductive paths arranged in pairs and an electrically conductive shield. A plurality of conductive elements connected to a corresponding conductive path and the conductive elements configured, for each pair, to balance a capacitive coupling between the electrically conductive shield and the conductive paths of that pair.

High Speed Data Communications Cable Having Reduced Susceptibility To Modal Alien Crosstalk
view source
US Patent:

8425260, Apr 23, 2013
Filed:

May 6, 2010
Appl. No.:

12/775330
Inventors:

Jeffrey P. Seefried - Lake Stevens WA, US
Jeffrey Alan Poulsen - Edmonds WA, US
Assignee:

Leviton Manufacturing Co., Inc. - Melville NY
International Classification:

H01R 24/00
US Classification:

439676, 439941
Abstract:

A communications cable for use with a communications connector having eight contacts arranged in a series. The cable has first, second, third, fourth, fifth, sixth, seventh, and eighth wires configured to be connected to first, second, third, fourth, fifth, sixth, seventh, and eighth contacts, respectively, of the series. The fourth and fifth wires are twisted together to form a first twisted wire pair (“twisted pair”). The first and second wires form a second twisted pair. The third and sixth wires form a third twisted pair. The seventh and eighth wires form a fourth twisted pair. The twisted pairs extend alongside one another and are arranged such that the first twisted pair is closer to the second and third twisted pairs than to the fourth twisted pair, and the second twisted pair is closer to the first and fourth twisted pairs than to the third twisted pair.

Crosstalk Compensation With Balancing Capacitance System And Method
view source
US Patent:

20050253662, Nov 17, 2005
Filed:

May 17, 2004
Appl. No.:

10/847216
Inventors:

Jeffrey Seefried - Lake Stevens WA, US
Assignee:

Leviton Manufacturing Co., Inc. - Little Neck NY
International Classification:

H01P005/02
US Classification:

333001000, 333005000
Abstract:

A insulation displacement connector (IDC) patch panel includes a circuit (PC) board with interdigitated capacitance for balancing out inherent capacitance found within IDCs of the panel and conventional plug connectors coupled to the panel. Unwanted cross-talk signals are reduced as a consequence.