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:
Oct. 28, 2025

Filed:

Nov. 07, 2023
Applicants:

Silicon Mitus, Inc., Seongnam-Si, KR;

Silicon-magic Semiconductor Technology (Hangzhou) Co., Ltd., Hangzhou, CN;

Inventors:

Young Jae Chang, Seoul, KR;

Sung Ryong Lee, Seongnam-Si, KR;

Jae Sam Shim, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 3/24 (2006.01); H03L 7/087 (2006.01); H03L 7/099 (2006.01); H03L 7/107 (2006.01);
U.S. Cl.
CPC ...
H03L 7/087 (2013.01); H03L 7/0991 (2013.01); H03L 7/1075 (2013.01);
Abstract

A clock and data recovery device includes an equalizer that compensates for channel loss of input data, a phase detector that compares data output from the equalizer and a fed back clock and outputs an up signal and a down signal, a charge pump that operates according to the up signal and the down signal to output a control signal, a loop filter that removes a high-frequency component included in the control signal output from the charge pump, a voltage-controlled oscillator that changes a frequency of the clock and outputs the clock according to the control signal from which the high-frequency component is removed, and a voltage-controlled oscillator buffer that adjusts a slew rate of the clock output by the voltage-controlled oscillator according to the up signal and the down signal directly received from the phase detector and transmits the clock to the phase detector.


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