The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 10, 2019

Filed:

Jun. 12, 2009
Applicants:

Alice Jane Brush, Seattle, WA (US);

James W. Scott, Cambridge, GB;

Galen C. Hunt, Bellevue, WA (US);

Raman K Sarin, Redmond, WA (US);

Andrew W Jacobs, Silver Spring, MD (US);

Barry C. Bond, Maple Valley, WA (US);

Oscar E Murillo, Redmond, WA (US);

Amy Karlson, Bellevue, WA (US);

Inventors:

Alice Jane Brush, Seattle, WA (US);

James W. Scott, Cambridge, GB;

Galen C. Hunt, Bellevue, WA (US);

Raman K Sarin, Redmond, WA (US);

Andrew W Jacobs, Silver Spring, MD (US);

Barry C. Bond, Maple Valley, WA (US);

Oscar E Murillo, Redmond, WA (US);

Amy Karlson, Bellevue, WA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/00 (2006.01); G01C 21/34 (2006.01); G01C 21/20 (2006.01); G01C 21/16 (2006.01);
U.S. Cl.
CPC ...
G01C 21/20 (2013.01); G01C 21/165 (2013.01);
Abstract

Techniques for creating breadcrumbs for a trail of activity are described. The trail of activity may be created by recording movement information based on inferred actions of walking, not walking, or changing floor levels. The movement information may be recorded with an accelerometer and a pressure sensor. A representation of a list of breadcrumbs may be visually displayed on a user interface of a mobile device, in a reverse order to retrace steps. In some implementations, a compass may additionally or alternatively be used to collect directional information relative to the earth's magnetic poles.


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