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.:

US 9497056 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 15, 2016

Filed:

Jun. 08, 2015
Applicants:

Allen Leroy Limberg, Port Charlotte, FL (US);

Arthur Webb Allison, Iii, Silver Spring, MD (US);

Inventors:

Allen LeRoy Limberg, Port Charlotte, FL (US);

Arthur Webb Allison, III, Silver Spring, MD (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 13/00 (2011.01); H04L 27/227 (2006.01); H04L 27/20 (2006.01); H04L 27/26 (2006.01); H04L 1/00 (2006.01); H04B 1/707 (2011.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2273 (2013.01); H04B 1/707 (2013.01); H04L 1/0041 (2013.01); H04L 1/0045 (2013.01); H04L 1/0058 (2013.01); H04L 5/0021 (2013.01); H04L 25/0226 (2013.01); H04L 27/2003 (2013.01); H04L 27/2613 (2013.01); H04L 27/2628 (2013.01); H04L 27/2656 (2013.01);
Abstract

Transmitter apparatus transmits metadata together with data, at least part of which metadata specifies the version of coded orthogonal frequency-division modulation (COFDM) broadcasting standard it uses for transmitting. Some of the metadata is conveyed by prescribed signature modulation of pilot carrier waves dispersed in one or another of prescribed patterns among the COFDM carrier waves that convey interleaved forward-error-correction coded digital signals. Receiver apparatus detects that metadata by searching for a prescribed signature modulation of the continual pilot carrier waves in those transmissions. Preferably, Barker modulation of the continual pilot carriers near the conclusion of each COFDM frame signals the start of the next COFDM frame to the receiver apparatus.


Find Patent Forward Citations

Limberg, Allen. (2016). Conveying metadata by modulation of pilot carriers in cofdm broadcasting (U.S. Patent No. 9497056). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9497056

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…