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. 08, 2011
Filed:
Apr. 02, 2004
Stephen G. Perlman, Palo Alto, CA (US);
Tim S. Cotter, Sunnyvale, CA (US);
Mike Cheponis, Los Gatos, CA (US);
Frank M. Caimi, Vero Beach, FL (US);
Stephen G. Perlman, Palo Alto, CA (US);
Tim S. Cotter, Sunnyvale, CA (US);
Mike Cheponis, Los Gatos, CA (US);
Frank M. Caimi, Vero Beach, FL (US);
Rearden, LLC, San Francisco, CA (US);
Abstract
A system and method are described in which space-time coding techniques are used to transmit and receive multiple data streams within a near vertical incidence skywave ('NVIS') communication system. Within the NVIS communication system, multiple independent data streams may be transmitted from a transmitting station at a high radiation angle, approaching or reaching 90 degrees. The data streams are reflected off of the ionosphere of the earth and received by one or more receiving stations. In one embodiment, the space-time coding techniques are multiple-input multiple-output ('MIMO') signal communication techniques.