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:
Nov. 19, 2013
Filed:
May. 17, 2007
Dagnachew Birru, Yorktown Heights, NY (US);
Gennady Turkenich, Hillsdale, NJ (US);
Dagnachew Birru, Yorktown Heights, NY (US);
Gennady Turkenich, Hillsdale, NJ (US);
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A method () and system () for detecting temporarily available bandwidth in a frequency band: select () a channel in the frequency band; measure () an energy received in the selected channel; compare () the measured energy to a first threshold; when the measured energy exceeds the first threshold, determine that the channel is unavailable () for transmission, otherwise determine () that the channel is available for transmission; correlate () a signal received in the channel with a known feature of a signal conforming to a particular transmission format; compare () the correlation result to a second threshold; when the correlation result in the channel exceeds the second threshold, determine () that a signal conforming to the particular transmission format is present in the channel, otherwise determine () that the signal conforming to the particular transmission format is not present in the channel.