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. 06, 2018
Filed:
Apr. 28, 2017
Applicant:
Lattice Semiconductor Corporation, Portland, OR (US);
Inventors:
Kai Zhou, Shanghai, CN;
Shinje Tahk, Sunnyvale, CA (US);
Kai Lei, Shanghai, CN;
Qiming Wu, Shanghai, CN;
Gijung Ahn, San Jose, CA (US);
Min-Kyu Kim, Sunnyvale, CA (US);
Fei Song, Shanghai, CN;
Kexin Luo, Shanghai, CN;
Assignee:
Lattice Semiconductor Corporation, Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 5/14 (2006.01); H04B 3/23 (2006.01); H04L 5/00 (2006.01);
U.S. Cl.
CPC ...
H04B 3/232 (2013.01); H04L 5/0091 (2013.01); H04L 5/14 (2013.01);
Abstract
A method that calibrates a device for echo cancellation and a device with calibration for echo cancellation are provided. Devices may be calibrated such that the echo residual error is less than a threshold determined by the calibration accuracy. Non-ideal factors such as mismatch may be eliminated during calibration.