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:
May. 26, 2020
Filed:
Nov. 30, 2017
Applicant:
Postech Academy-industry Foundation, Pohang-si, KR;
Inventors:
Jae Yoon Sim, Pohang-si, KR;
Ja Hyun Koo, Suwon-si, KR;
Assignee:
POSTECH ACADEMY-INDUSTRY FOUNDATION, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/0231 (2006.01); H03K 3/011 (2006.01); H03K 4/50 (2006.01); H03K 4/501 (2006.01); H03K 4/52 (2006.01);
U.S. Cl.
CPC ...
H03K 3/02315 (2013.01); H03K 3/011 (2013.01); H03K 3/0231 (2013.01); H03K 4/501 (2013.01); H03K 4/52 (2013.01);
Abstract
The present invention relates to a technology capable of compensating for a frequency error in a quadrature relaxation oscillator. The quadrature relaxation oscillator generates a signal at a desired frequency by using a resistor and a capacitor which are less sensitive to a PVT (Process, Voltage, Temperature) variation, generates a signal at a desired frequency by compensating for an error from design, which is caused by a mismatch between circuits due to a characteristic of a semiconductor process, through a feedback lop, and removes noise.