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:
Jul. 21, 2015

Filed:

Apr. 01, 2004
Applicants:

Jörg Peetz, Ludwigsburg, DE;

Yusuf Efe, Aldenhoven, DE;

Jörg Habetha, Aachen, DE;

Klaus Peter May, Aachen, DE;

Olaf Wischhusen, Aachen, DE;

Inventors:

Jörg Peetz, Ludwigsburg, DE;

Yusuf Efe, Aldenhoven, DE;

Jörg Habetha, Aachen, DE;

Klaus Peter May, Aachen, DE;

Olaf Wischhusen, Aachen, DE;

Assignee:

KONINKLIJKE PHILIPS N.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 52/02 (2009.01); H04W 92/02 (2009.01); H04W 88/16 (2009.01);
U.S. Cl.
CPC ...
H04W 92/02 (2013.01); H04W 52/0216 (2013.01); H04W 52/0219 (2013.01); H04W 52/0222 (2013.01); H04W 88/16 (2013.01); Y02B 60/50 (2013.01);
Abstract

The present invention relates to the connection of subnets which operate on different frequency channels and are connected by wireless forwarder stations. According to the present invention, a forwarding station periodically switches to the other frequency channel to remain there for a pre-defined presence duration, whereby jitters of the presence time caused by overlapping packet transmissions are compensated. According to the present invention, a presence and absence time of the forwarder station in the respective subnet is indicated by using signals relating to a power saving mechanism.


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