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:
Dec. 14, 2021
Filed:
Dec. 09, 2020
Digwise Technology Corporation, Ltd, Hsinchu County, TW;
Shih-Hao Chen, Hsinchu County, TW;
Chiou-Bang Chen, Hsinchu County, TW;
Wen-Pin Hsieh, Hsinchu County, TW;
Tai-Cheng Lee, Taipei, TW;
Heng-Jui Liu, Taoyuan, TW;
DigWise Technology Corporation, LTD, Hsinchu County, TW;
Abstract
A clock and data recovery circuit includes a first sampling phase detector and filter circuitry, a frequency detector circuit, a current source circuit, a band controller circuit, and a voltage controlled oscillator. The first sampling phase detector and filter circuitry generates a first voltage according to a pair of data and a first set of clock signals. The frequency detector circuit generates an up control signal and a down control signal according to the pair of data and the first set of clock signals. The current source circuit generates the first voltage according to the up control signal and the down control signal. The band controller circuit generates a band control signal according to the first voltage. The voltage controlled oscillator adjusts the first set of clock signals according to the band control signal and the first voltage.