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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 10355841 B1

PDFFull Text
Date of Patent:
Jul. 16, 2019

Filed:

May. 11, 2018

Methods and apparatus for transmitting modulation signals

Applicant:

Wi-fi One, Llc, Plano, TX (US);

Inventors:

Yutaka Murakami, Osaka, JP;

Masayuki Orihashi, Kanagawa, JP;

Akihiko Matsuoka, Kanagawa, JP;

Assignee:

Wi-Fi One, LLC, Dallas, TX (US);

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Rahel Guarino

Int. Cl.
CPC ...
H04L 5/00 (2006.01); H04B 7/06 (2006.01); H04L 1/06 (2006.01); H04L 27/26 (2006.01); H04L 27/04 (2006.01); H04L 27/12 (2006.01); H04L 27/14 (2006.01); H04L 27/06 (2006.01); H04L 29/06 (2006.01); H04L 27/18 (2006.01); H04L 25/02 (2006.01); H04W 52/52 (2009.01); H04B 7/0413 (2017.01); H04B 7/08 (2006.01); H04W 72/04 (2009.01);
U.S. Cl.
CPC ...
H04L 5/0048 (2013.01); H04B 7/06 (2013.01); H04B 7/0626 (2013.01); H04B 7/0689 (2013.01); H04B 7/0697 (2013.01); H04L 1/0618 (2013.01); H04L 5/003 (2013.01); H04L 5/0023 (2013.01); H04L 25/0204 (2013.01); H04L 27/04 (2013.01); H04L 27/06 (2013.01); H04L 27/12 (2013.01); H04L 27/14 (2013.01); H04L 27/18 (2013.01); H04L 27/2602 (2013.01); H04L 27/2627 (2013.01); H04L 27/2649 (2013.01); H04L 27/2657 (2013.01); H04L 27/2659 (2013.01); H04L 27/2691 (2013.01); H04L 27/2695 (2013.01); H04L 69/22 (2013.01); H04W 52/52 (2013.01); H04B 7/0413 (2013.01); H04B 7/0632 (2013.01); H04B 7/0671 (2013.01); H04B 7/082 (2013.01); H04L 25/0206 (2013.01); H04L 27/2601 (2013.01); H04W 72/0453 (2013.01);
Abstract

A plurality of modulation signals is generated. Each of the plurality of modulation signals includes a pilot symbol sequence having a plurality of pilot symbols. Each pilot symbol sequence is inserted at a same temporal point in each modulation signal, and each pilot symbol in the pilot symbol sequence has a non-zero amplitude. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of modulation signals to be transmitted. The plurality of modulation signals are transmitted in an identical frequency band from a plurality of antennas. Each of the transmitted plurality of modulation signals includes transmission data and one of the pilot symbol sequences.

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