Timothy D Mcgrath

US Patent:

6487559, Nov 26, 2002

Filed:

Sep 25, 2001

Appl. No.:

09/962390

Inventors:

Timothy McGrath - Chicago IL
John Jasper - Arlington Heights IL
James Herbst - Mountain View CA

Assignee:

Navigation Technologies Corporation - Chicago IL

International Classification:

G06F 1740

US Classification:

707200, 703203, 703201, 703103, 701201, 701 23, 701208

Abstract:

A system and method of providing incremental updates for a geographical data set for use in navigation systems. The system and method include organizing updates of geographical data set into a series of transactions. Each of the transactions includes a transaction identifier that uniquely identifies the transaction, and n steps to be applied to the geographical data set to complete the transaction. All the steps of the transaction are required to be successfully applied in order for the transaction to be completed, otherwise, the entire transaction is not applied.

US Patent:

6741932, May 25, 2004

Filed:

Apr 16, 2002

Appl. No.:

10/123587

Inventors:

Eric Groth - Buffalo Grove IL
Suzanne McGrath - Arlington Heights IL
Timothy McGrath - Arlington Heights IL
Lumumba Mbekeani - Oak Park IL

Assignee:

Navigation Technologies Corp. - Chicago IL

International Classification:

G01C 2134

US Classification:

701210, 701117

Abstract:

A system and method are disclosed that provide traffic information to end users. The traffic information is contained in traffic data messages that use location reference codes to identify locations along roads. A data structure is formed that relates a set of location reference codes assigned to locations along roads by a first data supplier to another set of location reference codes assigned locations along roads by a second data supplier. The data structure is used to form traffic data messages containing location reference codes assigned by the first data supplier based on traffic data messages containing location reference codes assigned by the second data supplier.

US Patent:

6990407, Jan 24, 2006

Filed:

Sep 23, 2003

Appl. No.:

10/668738

Inventors:

Lumumba Mbekeani - Oak Park IL, US
Eric Groth - Buffalo Grove IL, US
Timothy McGrath - Chicago IL, US

Assignee:

Navteq North America, LLC - Chicago IL

International Classification:

G08G 1/0967

US Classification:

701117, 34099513

Abstract:

A method for developing traffic messages for broadcast is disclosed. Data indicating a plurality of traffic conditions on a road network are obtained. For each of the traffic conditions, the data provides a start location at which the traffic condition begins and an end location at which the traffic condition ends. For each of the traffic conditions, a road length from the start location to the end location is determined. The traffic conditions are assigned a priority based upon the road lengths. The data indicating the traffic conditions are transmitted in the assigned priority as a plurality of traffic messages.

US Patent:

7050903, May 23, 2006

Filed:

Sep 23, 2003

Appl. No.:

10/668470

Inventors:

Jon D. Shutter - Chicago IL, US
Timothy McGrath - Chicago IL, US

Assignee:

Navteq North America, LLC - Chicago IL

International Classification:

G06F 19/00
G06G 7/76

US Classification:

701117, 701118, 701119, 701210, 340907, 34099513

Abstract:

A method of facilitating delivery of traffic messages is disclosed. Data indicating a plurality of traffic conditions on a road network are obtained. For each of the traffic conditions, the data provides a location description. For each of the traffic conditions, the location description is converted into a location reference code assigned by a traffic message supplier. A plurality of traffic messages representing the traffic conditions is transmitted. Each of the traffic messages includes the location reference code of the traffic condition.

US Patent:

7096115, Aug 22, 2006

Filed:

Sep 23, 2003

Appl. No.:

10/668916

Inventors:

Eric Groth - Buffalo Grove IL, US
Timothy McGrath - Chicago IL, US
Lumumba Mbekeani - Oak Park IL, US
Christopher S. Page - Long Grove IL, US

Assignee:

Navteq North America, LLC - Chicago IL

International Classification:

G08G 1/09
G06F 19/00

US Classification:

701117, 340905, 342456

Abstract:

A method for developing traffic messages is disclosed. Data indicating traffic speed at a plurality of locations on a road network are obtained. Each of the locations is assigned a unique location reference code. The data indicating traffic speed for the location reference codes assigned to locations along a road of the road network are evaluated. Locations reference codes along the road having related traffic speeds are grouped into at least one congestion event along the road. The congestion events are transmitted as traffic messages.

US Patent:

7139659, Nov 21, 2006

Filed:

Oct 28, 2005

Appl. No.:

11/261870

Inventors:

Lumumba Mbekeani - Oak Park IL, US
Eric Groth - Buffalo Grove IL, US
Timothy McGrath - Chicago IL, US

Assignee:

Navteq North America, LLC - Chicago IL

International Classification:

G08G 1/0967

US Classification:

701117, 34099513

Abstract:

A method for developing traffic messages for broadcast is disclosed. Data indicating a plurality of traffic conditions on a road network are obtained. For each of the traffic conditions, the data provides a start location at which the traffic condition begins and an end location at which the traffic condition ends. For each of the traffic conditions, a road length from the start location to the end location is determined. The traffic conditions are assigned a priority based upon the road lengths. The data indicating the traffic conditions are transmitted in the assigned priority as a plurality of traffic messages.

US Patent:

7251558, Jul 31, 2007

Filed:

Sep 23, 2003

Appl. No.:

10/668932

Inventors:

Timothy McGrath - Chicago IL, US

Assignee:

Navteq North America, LLC - Chicago IL

International Classification:

G01C 21/26
G06G 7/76
G08G 1/09

US Classification:

701117, 701207, 701208, 340988, 34099513, 340996

Abstract:

A method of facilitating delivery of traffic messages is disclosed. Data indicating a plurality of traffic conditions on a road network are obtained. For each of the traffic conditions, the data provides a location description. For each of the traffic conditions, the method determines at least one broadcast service area in which the traffic condition is located. A plurality of traffic messages is transmitted. Each traffic message is associated with a broadcast service area code identifying the broadcast service area in which the traffic condition is located.

US Patent:

7307513, Dec 11, 2007

Filed:

Jul 18, 2005

Appl. No.:

11/183430

Inventors:

Jon D. Shutter - Chicago IL, US
Timothy McGrath - Chicago IL, US

Assignee:

NAVTEQ North America, LLC - Chicago IL

International Classification:

G08G 1/123

US Classification:

34039513, 340905, 34039512, 701206, 701207, 701208, 701213, 701117, 707E17001, 7071041

Abstract:

A method of facilitating delivery of traffic messages is disclosed. Data indicating a plurality of traffic conditions on a road network are obtained. For each of the traffic conditions, the data provides a location description. For each of the traffic conditions, the location description is converted into a location reference code assigned by a traffic message supplier. A plurality of traffic messages representing the traffic conditions is transmitted. Each of the traffic messages includes the location reference code of the traffic condition.