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:
Sep. 11, 2018

Filed:

Nov. 10, 2017
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Tao He, Corvallis, OR (US);

Michael A. Ashburn, Jr., Groton, MA (US);

Assignee:

MediaTek Inc., Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/10 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
H03M 3/322 (2013.01); H03M 3/424 (2013.01); H03M 3/464 (2013.01);
Abstract

Circuits and methods for inter-symbol interference compensation are described. These circuits and methods may be used in connection with delta-sigma analog-to-digital converter. During a sensing phase, a value indicative of the inter-symbol interference may be sensed. The value may be obtained by (1) causing the ADC to generate a first number of transitions during a first time interval; (2) causing the ADC to generate a second number of transitions during a second time interval; (3) sensing the number of logic-0s and logic-1s occurring in the first and second time intervals; and (4) computing the value based at least in part on the number of logic-0s and logic-1s occurring in the first and second time intervals. During a compensation phase, inter-symbol interference may be compensated based on the value obtained in the sensing phase.


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