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:
Apr. 01, 2014
Filed:
Feb. 23, 2012
Atsushi Honda, Kawasaki, JP;
Teruhisa Ninomiya, Yokohama, JP;
Atsushi Honda, Kawasaki, JP;
Teruhisa Ninomiya, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A radio device including a plurality of antennas transmitting and receiving a signal a reception band filter which controls a pass frequency band a measuring circuit which measures a reception level of the signal received by each of the plurality of antennas in a preamble in the signal received through the reception band filter an antenna switch which switches the plurality of antennas based on a measurement result from the measuring circuit and a processor which controls transmission and reception of the signal of the radio device and a pass frequency band of the reception band filter, and which transmits, based on a packet density, an instruction for changing the preamble from a first data length to a second data length to the other radio device and for changing the pass frequency band of the reception band filter from a first band to a second band.