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.

Date of Patent:
Jun. 14, 2022

Filed:

Mar. 01, 2021
Applicant:

Cohere Technologies, Inc., Santa Clara, CA (US);

Inventors:

Shachar Kons, Santa Clara, CA (US);

Ronny Hadani, Santa Clara, CA (US);

Michail Tsatsanis, Santa Clara, CA (US);

Assignee:

Cohere Technologies, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/30 (2006.01); H03H 7/40 (2006.01); H03K 5/159 (2006.01); H04L 25/02 (2006.01); H04L 5/00 (2006.01); H04L 27/01 (2006.01); H04L 27/34 (2006.01);
U.S. Cl.
CPC ...
H04L 25/0204 (2013.01); H04L 5/0048 (2013.01); H04L 25/0236 (2013.01); H04L 27/01 (2013.01); H04L 27/34 (2013.01);
Abstract

In a transmitter apparatus, a known reference signal is superimposed on top of a data signal that is typically not known a priori to a receiver and the combined signal is transmitted. At a receiver, an iterative channel estimation and equalization technique is used to recover the reference signal and the unknown data signal. In the initial iteration, the known reference signal is recovered by treating the data signal as noise. Subsequent iterations are used to improve estimation of received reference signal and the unknown data signal.


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