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:
Dec. 09, 2014

Filed:

Feb. 09, 2012
Applicants:

Klaus Freiberg, Hördt, DE;

Jürgen Laforsch, Karlsruhe, DE;

Ingo Landgraf, Fürth-Poppenreuth, DE;

Simone Thoneick, Erlangen, DE;

Inventors:

Klaus Freiberg, Hördt, DE;

Jürgen Laforsch, Karlsruhe, DE;

Ingo Landgraf, Fürth-Poppenreuth, DE;

Simone Thoneick, Erlangen, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 29/08 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 67/14 (2013.01); H04L 67/145 (2013.01); H04L 69/28 (2013.01); H04L 12/2678 (2013.01);
Abstract

A method of lifeboat monitoring between a first and a second communication device, wherein a first monitoring request is received by the second communication device from the first communication device, where the first monitoring request to has a first monitoring time. In addition, a first reception time is determined by the second communication device based on the first monitoring time, lifeboat signals are received by the second communication device from the first communication device, and an interruption in the communication connection to the first communication device is triggered by the second communication device if, during the first reception time following receipt by the second communication device of the last lifeboat signal, a new lifeboat signal from the first communication device is unreceived by the second communication device.


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