James H Jacobs

US Patent:

7876268, Jan 25, 2011

Filed:

Sep 4, 2007

Appl. No.:

12/438033

Inventors:

James P. Jacobs - Littleton MA, US

International Classification:

G01S 3/02

US Classification:

342465

Abstract:

Various aspects of the present invention are shown and described, each of which has stand alone utility in a navigated medical environment. A receiver position calibration system and method facilitates calibration of a reference frame prior to each navigated procedure. A concept and application of confidence weights is introduced. Confidence weights can be applied to distance calculations to mitigate the effects of interference and increase the tolerance of the navigated medical system. Multi-path interference is minimized through the transmission of a signal having a pattern of unique frequencies and filtering of the distance calculations for each frequency to identify the ‘best’ distance in the presence of multi-path interference. A position determination method and system that transmits a signal having multiple frequency components permits positions to be identified with high resolution over a large area.

US Patent:

8170824, May 1, 2012

Filed:

Sep 4, 2007

Appl. No.:

12/438043

Inventors:

James P. Jacobs - Littleton MA, US
Mark Robert Schneider - Williston VT, US
Guohua Min - Danvers MA, US

International Classification:

G01S 13/32

US Classification:

702 75, 702105, 342129, 342 4, 342195, 342359, 342118, 342101

Abstract:

Various aspects of the present invention are shown and described, each of which has stand alone utility in a navigated medical environment. A receiver position calibration system and method facilitates calibration of a reference frame prior to each navigated procedure. A concept and application of confidence weights is introduced. Confidence weights can be applied to distance calculations to mitigate the effects of interference and increase the tolerance of the navigated medical system. Multi-path interference is minimized through the transmission of a signal having a pattern of unique frequencies and filtering of the distance calculations for each frequency to identify the ‘best’ distance in the presence of multi-path interference. A position determination method and system that transmits a signal having multiple frequency components permits positions to be identified with high resolution over a large area.

US Patent:

8170830, May 1, 2012

Filed:

Aug 22, 2007

Appl. No.:

12/438027

Inventors:

James P. Jacobs - Littleton MA, US
Mark Robert Schneider - Williston VT, US

International Classification:

G06F 11/00

US Classification:

702150, 700245

Abstract:

Various aspects of the present invention are shown and described, each of which has stand alone utility in a navigated medical environment. A receiver position calibration system and method facilitates calibration of a reference frame prior to each navigated procedure. A concept and application of confidence weights is introduced. Confidence weights can be applied to distance calculations to mitigate the effects of interference and increase the tolerance of the navigated medical system. Multi-path interference is minimized through the transmission of a signal having a pattern of unique frequencies and filtering of the distance calculations for each frequency to identify the “best” distance in the presence of multi-path interference. A position determination method and system that transmits a signal having multiple frequency components permits positions to be identified with high resolution over a large area.

US Patent:

20100158331, Jun 24, 2010

Filed:

Aug 22, 2007

Appl. No.:

12/438052

Inventors:

James P. Jacobs - Littleton MA, US
Hugh C. Lauer - Concord MA, US
Guohua Min - Danvers MA, US

International Classification:

G06K 9/00

US Classification:

382128

Abstract:

Various aspects of the present invention are shown and described, each of which has stand alone utility in a navigated medical environment. A receiver position calibration system and method facilitates calibration of a reference frame prior to each navigated procedure. A concept and application of confidence weights is introduced. Confidence weights can be applied to distance calculations to mitigate the effects of interference and increase the tolerance of the navigated medical system. Multi-path interference is minimized through the transmission of a signal having a pattern of unique frequencies and filtering of the distance calculations for each frequency to identify the ‘best’ distance in the presence of multi-path interference. A position determination method and system that transmits a signal having multiple frequency components permits positions to be identified with high resolution over a large area.

US Patent:

20200393814, Dec 17, 2020

Filed:

Aug 31, 2020

Appl. No.:

17/007430

Inventors:

- Maple Plain MN, US
James L. Jacobs - Amherst NH, US

International Classification:

G05B 19/4099
B33Y 50/02

Abstract:

A system for manufacturing a discrete object from an additively manufactured body of material including a precursor to a discrete object and at least a reference feature is disclosed. The system includes an automated manufacturing device, the automated manufacturing device including at least a controller configured to receive a graphical representation of precursor to a discrete object, receive a graphical representation of at least a reference feature on the precursor to the discrete object, and generate a computer model of the body of material, wherein the computer model of the body of material includes the graphical representation of the precursor to the discrete object and the graphical representation of the at least a reference feature.