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. 19, 1997
Filed:
Dec. 30, 1994
Ji-yong Chun, Seoul, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A digital timing recovery circuit for recovering a sampling clock of a playback signal in digital equipment, provides a fast phase obtaining time, reduces a phase error so as to generate a stable sampling clock and a dead zone effect caused by performing a quantization using a limited number of bits in hardware, and includes an analog-to-digital converter, a phase error detector, a phase error comparator, a loop filter, a reference voltage generator, a digital-to-analog converter and a variable voltage oscillator, to thereby reduce the phase obtaining time by varying the bandwidth of the loop filter according to the phase error size detected by the phase error detector and reduce a sampling phase error caused by noise at a constant state.