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:
Jun. 09, 2009
Filed:
Aug. 24, 2004
Jun Mitsugi, Yokohama, JP;
Jun Mitsugi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An apparatus and method for operating with a first radio system and a second radio system. First and second information is stored in the apparatus. The first information indicates at least one first channel which is used by the first system if a signal of the first system is detectable, and the second information indicating at least one second which fails to be used by the first system. A controller controls the second system to switch from the second channel to a third channel if the detector detects that a signal received through the third communication channel fails to be used in the first system. The second system includes a plurality of radios. The apparatus includes a modulation/demodulation unit that modulates and demodulates signals from the plurality of the radio systems. The signal are compatible are orthogonal frequency division multiplexed and are spread.