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:
Dec. 20, 2004
Rahul Malik, Singapore, SG;
Pek Yew Tan, Singapore, SG;
Daichi Imamura, Kanagawa, JP;
Katsuyoshi Naka, Kanagawa, JP;
Rahul Malik, Singapore, SG;
Pek Yew Tan, Singapore, SG;
Daichi Imamura, Kanagawa, JP;
Katsuyoshi Naka, Kanagawa, JP;
Panaosnic Corporation, Osaka, JP;
Abstract
A wireless transmission apparatus that improves throughput in a wireless communication network system. In this apparatus, Munits of transmission/reception sections (-to-M) respectively correspond to Munits of antennas (-to-M) and transmit a preamble signal and a data signal via corresponding antennas (-to-M). Munits of transmission/reception sections (-to-M) use subcarriers allocated per antennas (-to-M) out of subcarriers (and) in preamble signal transmission. Furthermore, Munits of transmission/reception section (-to-M) use a subcarrier () having a frequency different from subcarriers (and) in data signal transmission.