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:
Feb. 12, 2013
Filed:
Jan. 28, 2008
Applicants:
Eldad Perahia, Sunnyvale, CA (US);
Bretton Douglas, Sunnyvale, CA (US);
David Pignatelli, Saratoga, CA (US);
Inventors:
Eldad Perahia, Sunnyvale, CA (US);
Bretton Douglas, Sunnyvale, CA (US);
David Pignatelli, Saratoga, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/10 (2006.01); H04L 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A specialized preamble is provided to facilitate matrix channel estimation of a MIMO channel. In a particular implementation, a channel training preamble provided by the IEEE 802.11a standard is modified to facilitate MIMO channel estimation.