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.
Patent No.:
Date of Patent:
Dec. 13, 2011
Filed:
Feb. 27, 2008
Applicants:
Song-lin Young, Vancouver, WA (US);
Daniel J. Park, Beaverton, OR (US);
Inventors:
Song-Lin Young, Vancouver, WA (US);
Daniel J. Park, Beaverton, OR (US);
Assignee:
Sharp Laboratories of America, Inc., Camas, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A wireless client device (e.g. a WSD) discovers vacant DTV channels using location information acquired from a Dynamic Host Configuration Protocol (DHCP) server. In one aspect of the invention, a wireless client device discovers vacant DTV channels through direct communication with a local DHCP server and a remote primary user database server. In another aspect of the invention, a wireless client device discovers vacant DTV channels from an access device that communicates with a local DHCP server and a remote primary user database server.