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:
Dec. 26, 2023

Filed:

Sep. 28, 2022
Applicant:

Realtek Semiconductor Corp., Hsinchu, TW;

Inventors:

Tsung-Han Tsai, Hsinchu, TW;

Peng-Fei Lin, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/05 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
H03K 5/05 (2013.01); H03K 5/24 (2013.01);
Abstract

A slew rate control device and a slew rate control method are provided. The slew rate control device includes a signal generating circuit, a comparator circuit, and a control circuit. The signal generating circuit generates a first voltage signal and a second voltage signal having a slew rate, and the first voltage signal and the second voltage signal are a pair of differential signals. The comparator circuit outputs an enabling signal according to a relative positional relationship between an eye crossing point of the pair of differential signals and a signal edge of a reference clock. The control circuit generates at least one control signal according to the enabling signal to control the signal generating circuit, such that the signal generating circuit changes the slew rate of the first voltage signal and the second voltage signal according to the at least one control signal.


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