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:
Sep. 20, 2011
Filed:
Sep. 11, 2009
Applicant:
Hyung-ki Ahn, Seoul, KR;
Inventor:
Hyung-Ki Ahn, Seoul, KR;
Assignee:
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03C 3/00 (2006.01); H03C 3/06 (2006.01); H03C 3/09 (2006.01); H03L 7/08 (2006.01); H03L 7/085 (2006.01); H03L 7/18 (2006.01); H04L 27/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A two-point phase modulator and a method of calibrating conversion gain of the same are provided. The two-point phase modulator locks an output frequency signal by charging and pumping charge in a phase-locked loop (PLL) circuit at the beginning of operation, opens a loop of the PLL circuit for a period of time, and applies a step signal, thus calibrating conversion gain of a modulation signal that controls the output frequency signal. Thus, the conversion gain may be accurately calibrated by the calibration operation at one time.