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:
Aug. 07, 2018
Filed:
Jan. 04, 2017
Himax Technologies Limited, Tainan, TW;
Jing-Yuan Wang, Tainan, TW;
Chuan-Chien Hsu, Tainan, TW;
HIMAX TECHNOLOGIES LIMITED, Tainan, TW;
Abstract
A clock data recovery (CDR) circuit includes: a band select circuit, a low dropout regulator (LDO), a charge pump and a voltage-controlled oscillator (VCO), wherein the band select circuit is arranged to generate a digital signal according to at least a reference voltage; the LDO is arranged to regulate a ground voltage, wherein the LDO adjusts an operating band of the LDO by receiving at least a part of the digital signal to adjust a bias current of an amplifier of the LDO; the charge pump is arranged to generate a control voltage according to at least a part of the digital signal; and the VCO is arranged to generate a clock signal according to the control voltage, wherein the VCO adjusts an operating band of the CDR circuit by receiving at least a part of the digital signal to adjust a bias current of the VCO.