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:
Jan. 05, 2010
Filed:
Jun. 22, 2005
Mark A. Webster, Indian Harbor Beach, FL (US);
Michael J. Seals, Melbourne, FL (US);
Mark A. Webster, Indian Harbor Beach, FL (US);
Michael J. Seals, Melbourne, FL (US);
Other;
Abstract
Embodiments of legacy compatible spatial multiplexing systems and methods are disclosed. One method embodiment, among others, comprises receiving long training symbols and cyclic shifted long training symbols corresponding to legacy preamble portions of packets corresponding to first and second transmit signals, receiving long training symbols and inverted cyclic shifted long training symbols corresponding to spatial multiplexing portions of packets corresponding to first and second transmit signals, and combining the symbols corresponding to the first and second transmit antennas to estimate the respective channels.