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. 15, 2021

Filed:

Jun. 27, 2017
Applicant:

Apple Inc., Cupertino, CA (US);

Inventor:

Christian Mayer, Wilhering, AT;

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01); H04L 27/34 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2623 (2013.01); H04L 27/3411 (2013.01);
Abstract

A method configured to clip an I signal and a Q signal according to a clipping boundary, includes receiving an I value and a Q value, wherein the I value and Q value define Cartesian coordinates of a data point being transmitted on the real and imaginary axes of the complex plane, respectively; determining a clipping error between the I value and the Q value and the clipping boundary; combining the clipping error with the I value to generate a clipped I value; combining the same clipping error with the Q value to generate a clipped Q value; and providing the clipped I value and the clipped Q value to a radio frequency digital-to-analog converter (RFDAC) in a transmit chain.


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